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NZ719297B2 - Prostacyclin compounds, compositions and methods of use thereof - Google Patents

Prostacyclin compounds, compositions and methods of use thereof Download PDF

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Publication number
NZ719297B2
NZ719297B2 NZ719297A NZ71929714A NZ719297B2 NZ 719297 B2 NZ719297 B2 NZ 719297B2 NZ 719297 A NZ719297 A NZ 719297A NZ 71929714 A NZ71929714 A NZ 71929714A NZ 719297 B2 NZ719297 B2 NZ 719297B2
Authority
NZ
New Zealand
Prior art keywords
compound
patient
composition
treprostinil
linear
Prior art date
Application number
NZ719297A
Other versions
NZ719297A (en
Inventor
Donna Konicek
Franziska Leifer
Zhili Li
Vladimir Malinin
Walter Perkins
Adam Plaunt
Original Assignee
Insmed Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Insmed Incorporated filed Critical Insmed Incorporated
Priority to NZ758464A priority Critical patent/NZ758464B2/en
Priority claimed from PCT/US2014/062232 external-priority patent/WO2015061720A2/en
Publication of NZ719297A publication Critical patent/NZ719297A/en
Publication of NZ719297B2 publication Critical patent/NZ719297B2/en

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    • A61K31/165—Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide
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    • A61K31/21—Esters, e.g. nitroglycerine, selenocyanates
    • A61K31/215—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
    • A61K31/216—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids of acids having aromatic rings, e.g. benactizyne, clofibrate
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    • A61K31/215—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
    • A61K31/22—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids of acyclic acids, e.g. pravastatin
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    • A61K31/558—Eicosanoids, e.g. leukotrienes or prostaglandins having heterocyclic rings containing oxygen as the only ring hetero atom, e.g. thromboxanes
    • A61K31/5585—Eicosanoids, e.g. leukotrienes or prostaglandins having heterocyclic rings containing oxygen as the only ring hetero atom, e.g. thromboxanes having five-membered rings containing oxygen as the only ring hetero atom, e.g. prostacyclin
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    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
    • C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids
    • C07C69/708—Ethers
    • C07C69/712—Ethers the hydroxy group of the ester being etherified with a hydroxy compound having the hydroxy group bound to a carbon atom of a six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
    • C07C69/73—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids
    • C07C69/734—Ethers
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
    • C07C69/73—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids
    • C07C69/734—Ethers
    • C07C69/736—Ethers the hydroxy group of the ester being etherified with a hydroxy compound having the hydroxy group bound to a carbon atom of a six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/74—Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring
    • C07C69/753—Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring of polycyclic acids

Abstract

Prostacyclin compounds and compositions comprising the same are provided herein. Specifically, prostacyclin compounds comprising treprostinil covalently linked to a linear C5-C18 alkyl, are described. The linkage, in one embodiment, is via an amide, carbamate, or ester bond. Methods for treating pulmonary hypertension (e.g. pulmonary arterial hypertension) and portopulmonary hypertension are also provided. monary hypertension (e.g. pulmonary arterial hypertension) and portopulmonary hypertension are also provided.

Description

l’RGS'l‘ACYCLlN CQMPOUNDS, CQNH’QSE'HONS AND METHQEES 0F USE THE-REGF CRQSS REFERENCE T0 RELA’E‘ED AE’E’LECATEGNS lilllltlll This application claims priority from US. l’rovisional Application Serial Nos. 62/042,123, filed August 26, 2014; 62x"028,758, filed July 24, 20M; til/950,967, filed March 11, 2014; 61/910,703, filed December 2, 2613; 5,630, filed October 25, 2013; each of which is orated by relerence in its entirety for all. purposes, BACKGROUND OF THE ENVENTEGN llhltlll Pulmonary hypertension {Pl-l) is characterized by an abnormally high blood pressure in the lung vascrilature. it is a progressive, lethal disease that leads to heart failure and can occur in the pulmonary artery, pulmonary vein, or pulmonary capillaries. Syinptornatically patients experience shortness of breath, dizziness, ng, and other symptoms, all of which are made worse by on. There are multiple causes, and can be of unknown origin, idiopathic, and can lead to hypertension in other systems, for example, portopulmonary hypertension in which ts have both portal and pulmonary hypertension. lllllll3l Puln'ionary hypertension has been classified into tive groups by the World Health Organization (WHO). Group 1 is called pulmonary arterial hypertension (PAH), and includes PAH that has no known cause (idiopathic), inherited PAH (225., ial PAH or FPAH), PAH that is caused by drugs or toxins, and PAH caused lay conditions such as connective tissue diseases, lellV infection, liver disease, and congenital heart disease. Group ll pulmonary hypertension is characterized as pulmonary hypertension associated with left heart disease. Group lll pulmonary hypertension is characterized as PH associated with lung diseases, such as chronic ohstructi‘ve pulmonary disease and interstitial lung diseases, as well as PH ated with sleep—related ing disorders (cg, sleep apnea). Group 1V PE is PH due to c thrombotic andr’or ern‘oolic disease, cg, Pl-l caused by blood clots in the lungs or blood clotting, disorders. Group V includes PH caused lay other disorders or conditions, e.g., blood disorders (8,53,, polycythernia vera, essential throniboeytltiernia), systemic ers (eg, sarcoidosis, vars-colitis), metabolic disorders tag, thyroid disease, glycogen storage disease). lllllllél-l Pulmonary al hypertension (PAH) afflicts approximately 200,090 people globally with imately 30,fi00—40,0l}0 of those patients in the United States. PAH ts experience constriction of pulmonary arteries which leads to high pulmonary arterial pressures, making it ult for the heart to pump blood to the lungs. Patients suffer from ess of breath and fatigue which often severely limits the ability to perform physical acti yity. lllililSl The New York Heart ation (N‘r'l-lA) has categorized PAH patients into four functional classes, used to rate the severity of the disease. Class l PAH patients as categorized by the NYHA, do not have a limitation of physical tyg as ordinary physical activity does not cause undue dyspnoea or fatigue, chest pain, or near syncope. tnient is not needed for class I PAH patients. Class ll PAH patients as categorized by the NYHA have a slight limitation. on physical activity. "l‘hese patients are comfortable at rest, but ordinary physical activity causes undue dyspnoea or fatigue, chest pain or near syncope. Class 111 PAl-i ts as rized by the NYE-EA have a marked limitation of physical activity.
Although comfortable at rest, class lll PAH patients experience undue dyspnoea or fatigue, chest pain or near e as a result of less than ordinary al activity. Class lV PAH patients as categorized by the NYHA are unable to carry out any physical activity Without symptoms, Class lV PAl-l patients might experience dyspnoea and/or fatigue at rest, and discomfort is increased by any physical activity. Signs of right heart failure are often manifested by class 1V PAH patients. {sass} Patients with PAH are t‘eated with an elin receptor antagonist (ERA), pliosphodiesterase type 5 (PUB—5) inhibitor, a guanylate cyclase ator, a prostanoid (8.3}, cyclin), or a combination thereof. ERAs include ahrisentan ris®), sitaxentan, bosentan ('l'racleeniii), and macitentan (OpsurninE). FDR—5 inhibitors indicated for the treatment of PAH include sildenatil iodh), tadalafil {Adcirca®). Prostanoids indicated for the treatment of PAH include iloprost, epoprosentol and stinil (Remodulintisl, Tyvasotis‘). The one approved guanylate cyclase stimulator is riociguat (Adempas®). Additionally, patients are often treated with combinations of the aforementioned compounds. {6967} Portopulmonary hypertension is defined by the coexistence of portal and pulmonary hypertension, and is a serious complication of liver disease. "the diagnosis of portopulmonary hypertension is based on hemotlynamic criteria: (l) portal hypertension and/or liver disease (clinical diagnosis~ascites/varicc'/splenotnegaly), (2) mean pulmonary artery pressure '> 25 mrnllg at. rest, {3) pulmonary vascular resistance .> 24% dynes s/crns, (4) pulmonary artery occlusion pressure < lSi'nrnl-lg or transpulnionary gradient > 12 mmllg. PPlil is a serious EN.) complication of liver disease, and is present in 0.25 to 4% of patients ing from cirrhosis.
Today, PPH is eomor‘oid in 4—6% of those referred for a liver lant {Whit} Despite there being treatments for PAS-i and i’RE-i, the current prostacyciin therapies are associated with severe toxicity and toierahiiity issues, as well as the requirement for ineorwenient dosing seheduies. The present invention overcomes addresses these factors by providing compounds and treatment schedules that provide for less toxicity, better toierability and more convenient dosing seheduies.
SUMMARY OF THE INVENTIQN 32116991 in one aspect of the invention, a cyciin compound of a (i), or a ceutically acceptabie salt, is provided: 2\R11H0 R3 Fonnuia (1) wherein R1 is NH, 0 or S; R; is H, a iinear (:1ng3 aikyi, branched CyClg aiityi, Einear CngJg aikenyi, branched 1:3"ng aikenyi, aryi; aryi—Cl—ng aikyi; an amino acid, or a peptide; R3 is H, OH, (Ii—aiityi or {Latitenyh R is an optionaiiy substituted iinear or branched 5 aikyi, or an optionaiiy substituted iinear or branched C2-C5 i; and n is an integer from G to 5, with the proviso that the prostaeyelin compound is not treprostinii, {Mimi in another aspect of the invention, a prostacyciin compound of Formula (iii), or a pharniaeeutiealiy acceptable salt, is provided: \ngHn/ Forrnuia (11) wherein R1 is NH, O or S; R; is a linear or ed (Ts—C13 aikyi, a iinear CQ"C]8 athenyl or a branched Cg—Cgs aikenyi, aryi, aryi—C 14C; 3 aikyi, an amino acid or a peptide; and n is an integer from 0 to 5. {earn in one embodiment, a compound of Formula (1} and/or (ii) is provided, wherein one or more hydrogen atoms is substituted with a deuterium, l—‘teeordingly, in one ment, the present invention relates to an isotopologue of Formula (l) and/or (ll), substituted with one or more deuterium atoms. The isotopologue of Formula (1) and/or (ll) may be used to accurately ine the tration of compounds of Formula (3} and/or (ii) in biological fluids and to determine lic patterns of nds of Formula (l) and/or (ii) and its isotopolognes. The invention further provides compositions comprising these denterated isotopologues and methods of treating diseases and conditions, as set forth herein.
{W12} In one embodiment of the inventiom a compound of Formula (1) or (H), or a. ceutically acceptable salt, is provided, wherein R; is N and n is l. in a further ment, R2 is a linear C3613 alleyl or a branched CyC i8 alkyL in a further embodiment, R2 is a linear (264312 alltyl or a branched icy-(:12 alkyl. liil Another embodiment of the invention provides a compound of Formula (l) or (ii), wherein R; is O and n is l. in another embodiment, a compound of Formula. (1) or (ii) is provided, wherein R1 is S and n is l. in yet another embodiment of the invention, a nd of Formula (1) or (ii) is provided, wherein R1 is N and n is O" {Mild-l Another embodiment of the invention provides a. prostaeyclin compound of Formula (l) or (ll), wherein R2 is a linear (354.718 allryl. in a iirrther embodiment, n is {3 or l. in even a further ment, R1 is N or O. in yet a r embodiment, R2 is a linear C6"C1fj allryl.
Yet another embodiment provides a prostacyelin compound of Formula (l) or (ii), wherein R; is N, R2 is a linear (lg-Cm alkyl, and n is l. in even a r embodiment, R3 is a linear C6, Cs Clo, C1301" C14 alkyl. iitttllfij Another embodiment of the ion es a prostacyelin compound, of li‘ormnla (l) or (H), or a pharmaceutically acceptable salt, wherein R2 is a branched, C's—Cm alhyl. in a. further embodiment, n is 0 or 1. in yet a further embodiment, R; is N or 0. in even a further embodiment, the branched alkyl is hexyl, oetylg decyl, dodeeyl, tetradecyl, hexadecyl or octadecyl. {$6.16} in yet another embodiment, a prostacyclin compound of Formula til) or (ii), or a pharmaceutically acceptable salt, is provided, n R2 is a linear C5nC 18 alkenylu in a. further embodiment, it is 0 or i. in yet a, iiirther embodiment, R"; is N or Q. in even a further embodiment, the branched alkyl is hexyl, octyl, decylg dodecyl, tetradecyl, hexadeeyl or oetadeeyl.
{MW} in yet r embodiment, a prostaeyelin compound of Formula (l) or (ll), or a pnannaeeutieally acceptable salt, is provided.% wherein R; is a branched C5—C8 ailgenyl, in a further embodiment: n is O or 1. in yet a. further embodiment, R; is N or O. in yet a further embodiment the branched alkenyl is. pentenyl, hexenqu yl, oetenyl, nonenyl, deeenyl, nndeeenyl, dodecenyl, tridecenyli tetradeeenyl, ecenyl, cenyl, beptadeeenyl or oetadeeenyl. {09.18} in one embodiment, a prostaeyelin compound of Formula (l) or (11),, or a pharmaceutically acceptable salt, is provided, wherein R3 is a branched chain allcyl that is either a symmetrical branched alliyl or an asymmetrical branched alkyl. In nne embodiment CIZR'R' ( ) is of Formula (I) or (ll): R] is 0 or N and R2 isml m2 or R' R' where ml and m2; are independently an integer selected item l to 9 and each occurrence ofR.’ is independently H, a linear or branched (TI—Cg alkyl, or a linear or ed C]-Cg alkenyl. When ml and/or n12 is an integer liorn 2—9, the ml/n'i2 at the end of the carbon chain is CH3, while the remaining nil/m}; groups are CH3. in a further embodiment, n is i) or l. in even a r all) embodiment, n is 1.} R1 is 0", R2 is m1 m2 and the tollowing compound is provided; m 1 t:JK/o HO or a phannaeeutically acceptable salt thereofi ln one embodiment, ml and m2 are both 4. in r embodiment, ml is 3 and ml). is 4. in even a further embodiment, n is l.
{W19} In one embodiment, a nd of Formula (1) or {ll} is provided? R; is O and R2 is V\jN\/\/. In yet another embodiment of Formula (ll or {ll}, R1 is O and R2 is k)": {new} in one ment, a compound of Formula (l) or (H) is provided, R1 is N and R3 is VJ/V.In yet another embodiment of Formula (1) or (it), R1 is N and R2 is; {0921} In a further embodiment, n is l and the foilowing compound is provided: HO (reterretl. to herein as 5~nonanyhtreprostinil or SCQ—TR), {lltlZZ} in one embodiment, the prostaeyeiin compounds of the formulae provided herein having a. branched alleyl or branched alkenyl (eflg where R2 ofthe ae provided herein in 5—1’ionanyl, 3~heptyh 4—l’ieptyl, 4—oetyl, 3—oetyi, Z—oetyl, 2~diniethyhi1:51‘opyi, 3,3~diniethyi— i, i—l ubutyl, 3—pentyl) at position R3 exhihit a slower conversion rate relative to a 'prostaeyelin compound having a lii'iear alcohol chain at position R2, and have the further advantage of high solubility.
{M23} Yet another embodiment of the invention relates to a prostaeyelin compound of Formula (ill), or a phai‘n'iaeeuticaily acceptable salt; R2\R1)K/O R60 a. (lllfi wherein R1 and R2 are defined above, and R5 and R6 are independently selected from H, optionally substituted linear or branched (fl-(315 alkyl, optionally substituted linear or branched :15 aikenyl, {C====()il" optionally substituted linear or branched C1—C5 alkyl, or {C=Q)—optionaiiy substituted linear or branched C2~C15 aikenyi, with the proviso that the 'prostacyciin compound of Formuia (i i t) is not treprostinii.
{Mimi Another aspect of the invention relates to a prostacyciin composition comprising a prostacyciin compound of Formuia (I), (it) or (iii). in one embodiment the prostacyciin composition comprises a prostacyciin compound of Formnia (IE), {it} or (iii) and a hydrophobic additive. in a further embodiment the hydrophobic additive is a arbon, a terpene or a hydrophobic lipid. in another embodiment, the hydrophobic additive is choiesteryl acetate, ethyl stearate, pahnitate, myristate, paimityi ate, tocopheryi e, a monoglyeeride, a digiyceride, a trigiyceride like paimitate, myristate, dodecanoate, decanoate, octanoate or squaiane. in even a further embodiment, the. hydrophobic additive is souaiane. {9925} in another aspect of the invention, a composition comprising a prostaeyciin compound of Formuia (1')," (it) or (Hi), and an amphipbiiic agent is provided. in one embodiment, the amphiphiiie agent is a PEGyiated iipid, a surfactant or a block copoiymer. in a, further embodiment, the prostacyclin composition comprises a prostacyciin compound of Formula (I), (H) or (iii), and a PEGyiated lipid. in a. r embodiment, the ted lipid comprises P5350400, PEGSGQ, PEGMHH), PEGZGGO, PEGLSOGG, P5364000, or P53565009 in a further embodiment the lipid. component of the PEGyiated iipid comprises PEG covalently iinked to dimyristoyi atidyiethanoiamine {BMFE}, dipaimitoyi phosphoetbanoiamine (DFPE), distearoyiphosphatidylethanolamine (DSPE), stoyigiyceroi giyceroi (DMG), diphosphatidyigiyceroi (DPG), disteraroyigiyceroi (DSG).
{Gold} in another embodiment of the invention, a composition sing a prostacyciin compound of Formula. (IL (11) or (111),, a hydrophobic additive and an hiiie agent is provided. in one embodiment, the amphiphiiic agent is a PEGyiated iipid, a surfactant or a block mer. In a further embodiment, the hydrophobic ve is squaiane. in a r embodiment, a PEGyEated iipid is t in the composition and comprises 9333409? PEGSOO, P1381000, G, P2263000, PEG4090 or PEGfiGOG. {@927} In another aspect of the inventiont a method for treating pulmonary ension (PH) is provided, The treatment methods include treatment of group i (PAH), group it, group iii, group 1V or group V I’H. In one embodiment, the. method for treating PH comprises treatment of pulmonary arteriai hypertension (PAH) in a patient in need ti'iereof. in one ment, the method for treating PAH comprises administering to the patient in need of treatment, a prostaeyelin compound. of Formula (i), (H) or (ill), or a phannaeeutically acceptahle salt thereof, or a composition comprising a prostacyclin compound of Formula (i), (ll) or (ill), or a pharmaceutically acceptable salt thereof, in a titrther embodiment, the administration is subcutaneous, oral, nasal, intravenous or a pulmonary route of administration. in the case ofpulmonary administration, the compound of Formula (I), (ll) or (ill), or the composition comprising the prostacyclin compound of Formula (1), (ll) or (ill) is administered to the patient Via a nehulizer, dry powder inhaler, or metered dose inhaler.
{W28} In another aspect of the invention, a method for treating portopulmonary hypertension (l’Pl-l) in a patient in need thereof is provided. in one embodiment, the method for treating PPH comprises administering to the patient in need of treatment, a cyciin compound of l?’oi'nru,la (I), (ll) or (ill), or a ceutically acceptable salt thereof, or a composition sing a cyclin compound of Formula (l), {ll} or (ill), or a pharmaceutically able salt thereof}. in a thither embodiment, the administration is subcutaneous, oral, nasal, intravenous or a pulmonary route of administration. in the case of pulmonary administration, the compound of Fommla (I), (ll) or (ill), or a pharmaceutically acceptable salt thereof, or the composition comprising the prostacyclin compound of a (1), (ill) or (ill) is stered to the patient Via a nebulizer, dry powder inhaler, or metered dose inhaler. {iltlzgl in one embodiment of the invention, a method for treating PH, PAH or PPH in a patient in need thereof is provided, comprises administering to the lungs of the patient a prostacyclin compound. of Formula (l), (E!) or {ill}, or a pharmaceutically acceptable salt thereof, Via a metered dose inhaler comprising a propellant. in a further embodiment, the propellant is a fluorocarbon. in one embodiment, the compound of Formula (l), ill} or (ill) or pharmaceuticalljyr acceptable salt thereof is administered Via a metered dose inhaler to the lungs of a patient in need of PH, PAl-l or PPl‘l treatment, and administration occurs once, twice or three times daily. In embodiments where the compound of Formula (1), (ll) or (ill), or a composition comprising the compound of a (i), (ll) or (ill), is administered , nasally, subcutaneously, intravenously or to the lungs (cg, Via nehulization, dry powder inhaler or d dose inhaler), administration to the t is either once or twice daily. in one embodiment, the compound of Formula (1), (ill) or (ill), or a ition sing the compound of Formula (1), (H) or (ill) is administered once daily to the patient in need of treatment, and administration is subcutaneous, intravenous, oral, nasai, or to the hints Via aerosolization usin t a nehulizer, dr I owder inhaler or metered dose inhale 1 E3 9 {$030} in one embodiment, the patient treated for Pi-i, PAH or Pi’l-i with the nds, compositions and methods bed herein experiences a decreased number ot‘side effectt's), or a reduction in severity of side effeett's), compared to the number of side elit‘ectts) or severity of side (s) experienced when the patient is administered treprostinil. in one embodiment, the side effect is the patient’s cough response, and the fifequency and/or severity is reduced, as compared to the frequency and/or ty of cough response experienced by the patient when administered treprostinii. {@311 In another embodiment, the prostacyciin compound administered to a patient in need thereof Via a pulmonary route by the PH, PAH or t’E’lii treatment methods described herein provides a greater pnhnonary elimination lit‘e (tug) of the prostacyciin compound and/or its metabolite treprostinii, compared to the pulmonary elimination haif—lit‘e (tug) of treprostinil, when treprostinil is stered. Via a puirnonary route (5.5.3., by nebulization, dry powder inhaier, or a metered dose inhaler) to the patient, {M32} in another embodiment, the prostacyclin compound stered to a patient in need thereof, Via. the PH, PAH or PPH treatment methods described herein provides a greater systemic ife (ii/2) of the prostacyclin nd and/or its metabolite treprostinii, compared to the systemic elimination half—life (if/2) of treprostinil, when treprostinil is administered to the patient. in a further embodiment, administration of the prostacyciin nd and treprostinil comprises subcutaneous or enous administration. {3&33} in another embodiment, the prostaeyeiin compound administered to a. patient in need of PH, PAH or PPE—i ent provides a greater mean pulmonary Cm.dx and/or lower plasma Cum of treprostinii for the patient, compared to the respective pulmonary or plasma Cum of treprostinil, when treprostinii is administered to the patient. {(31334} In another embodiment, the prostacyciin compound administered. to a patient in need of PH (6.5;, PAH) or PPH treatment provides a greater mean pulmonary or plasma area under the curve (:WCTm) of the eyciin compound and/or its metabolite treprostinii, compared to the mean pulmonary or plasma area under the curve (AUCM) of stinil, when treprostinil is administered to the patient. in yet anothe embodiment, the prostaeyeiin compound administered to a patient in need thereof provides a greater pulmonary or piasma time to peak concentration (tmax) of the cyclin compound and/or its metabolite stinih compared to the puimonary or plasma time to peak concentration {tum} of treprostinii, when treprostinii is administered to the patient.
BRIEF BESCREPTIGN (H? THE S {9835i Figure LA is a graph showing the spontaneous hydrolysis of treprostinii compounds vs. time" (C3: propyi ester, C4: hutyl esters C5: pentyi ester, C6: hexyi ester, C8: oetyi ester and Ci ()2 deeyi ester). {0936} Figure 18 is a graph showing esterase-niediateci hydrolysis of the alkyi chains at various tirnepoints (15 min.., 30 min, 66 mine) of treprostinii compounds dissoived in aqueous buffer, and treprosti nil compositions comprising i’iifiyiated iipids. {8037} Figure 2 is a graph of the average particle diameter for various stinii aikyi esters in torrnuiations comprising 'PEGyEated iipids as a function of aikyi ester chain . The aikyi Chain is present at the carboxyiie acid moiety of treprostinii. PD is poiydispersity.
{W38} Figures 3A," 3B and 3C are graphs of relative CAMP response of CHO~K1—F4 cells (2.5 x ":04 eeiis/weii) vs, time, in se to it) and {Figure 3A), 1 uM (Figure 33) or 0,} uM (Figure 3C) treprostihii and treprostinil aikyi ester compositions. (es: hexyi ester, C8: oetyi ester, {iii}: oeeyi ester). {$89} Figure 4 is a grapi'i of relative CAMP se of Ci>iO~Ki~P4 eeiis (2.5 x ":04 cells/well) vs. time, in response to 5 uM treprostinii and treprostinii alkyi ester compositions. (es; hexyi ester, C8: ootyi ester, Cit): tieeyi ester, €12: dotieeyi ester). {@040} Figure 5 is a graph of relative CAMP response of ifiKi—Plt cells (25 x 104 weii) vs, time, in response to challenge with treprostinil and various treprostinii aikyi ester compounds at 5 uM. {iiiicti} Figure 6 is graph ofreiative CAMP activity of {Ii-i(}-i§1~i’4 cells (2.5 X 1()4 eeiEs/weii) vs" time, in se to chaiienge with treprostinii and nebuiized and nonme‘ouiized treprostinil aikyi ester compositions, as measured by a modified (i-ioSensor assay. "(N)" indicates nehuiized compositions. {9942} Figure 7 is a graph of reiative CAM? response of CHO~K1~P4 cells (2.5 X 104 eel is/wei I) vs. free treprostini l, at various dosages and time points. {fififl} Figure 8 is a graph of relative CAMP response of CHOuKi—Pdi eeiis (2.5 X 'qu eeils/weil) VS. T554 (Cg—TR) treprostinii aikyi ester composition challenge, at various s and time points. {sass} Figure 9 is a graph of ve CAMP esponse of CHO—Kl—l’d cells (2.5 x M34 cells/well) vs. T568 (Cu—TR) treprostinil alkyl ester composition challenge at various dosages and time points. {illlélfil Figure l0 is a graph of relative CAMP se of CHO~Kl~P4 cells (2.5 X l04 cells/well) vs. T63l (CM—TR.) treprostinil alkyl ester composition challenge, at various dosages and time points.
{W46} Figure ll is a graph of relative CAMP response of dl4} cells (2.5 a it?’1 cells/well) 'Vs. T623 (CW'I‘R) treprostinil alkyl ester composition challenge at various dosages and time points. {9947} Figure 12 is a graph of relative eAMP response of CHO~Kl—P4 cells (2.5 x 104 cells/well) VS. treprostinil ethyl ester (C2)) compound challenge? at various dosages and time points.
{MM-8} Figure l3 is a graph of relative CAMP response of CEO—Kle—l cells (2.5 x it?1 eells/well} vs" treprostinil ethyl ester {(212) compound challenge, at various dosages and time points. {llfiélslll Figure l4 is a graph of relative CAMP response of Cl>lO~Kl—P4 cells (235 X lil4 cells/well) vs" treprostiuil ethyl ester (Cg) compositions, at various dosages and time points {fififill Figure 15A is a graph of pulmonary arterial pressure (expressed as a t of the starting hypoxia value) vs. time, in response to animal challenge with phosphate bu‘fered saline (PBS), treprostinilg and cycliu compositions (T554 (Cg) and T668 ((312)). The target dose for treprostiuil and. prostaeyelin alkyl esters was 76.8 I’llIIOlC/lx'g; the achieved deposited dose may be 5x lower than these target values.
{MESH Figure 1513 is a dot plot showing the ef‘eet of treprostiuil and C3, Cg, Cm,» and C" treprostinil alkyl ester compositions on PAP ssed as a percent of the starting a value) in an in viva acute a rat model of PAH. Doses were target values and actual aeliieved lung doses may e approximately 5x lower.
{M52} Figure 16 is a graph. of systemic arterial pressure {expressed as a percent of the starting hypoxia value) vs. time, in response to animal Challenge with l?’BS, treprostinila and treprostinil alkyl ester itions (T554 (CTTR) and 11568 12)) in an in vivo aeute hypoxia rat model of PAH. The al dotted line marks change in X-axis time increments" The target close for treprostinil and prostacyclin alkyl esters was 76.8 nmele/kg; the achieved ted dose may he 5x lower than these target values: 3905M Figure 17 is a graph of in viva heart rate (expressed as a percent at the starting hypoxia. value) vs. time, in response to animal challenge with PBS, treprostinil and treprnstinil alkyl ester compositions (T554 (Cg) and T1568 {€12}; in an in viva acute hypexi a rat model of PAH. The vertical dashed line marks- ehange in Xmaxis time increments. The target dose for treprestinil and prostacyclin alltyl esters was 76.8 npttole/ltg; the achieved ted dose maybe 5): lower than these target values. {9054} Figure 18, top paneh is a graph of relative cAl‘s/ll? response of CHG~K1 cells as a function of 5C9~TR (5~nonanyl~treprostim‘l alkyl ester een'tposition) challenge, at various s and. time points. Figure l8" bottom panel, shews the ECSQ of 5C9—’l’l{ over timea calculated from the CAMP respcnse of CEO—Kl cells vs. 5C9~TR {9955} Figure 19, top panel, is a graph of relative cAh/l? response of Cl>lO~Kl cells vs. {314- TR (C14 treprostihil allqyl ester itien) challenge, at varieus s and time points.
Figure l9, bottom, panel, shcws the ECSC of C14~TR ever time, calculated frern the (LAM? respense {if C HO—Kl cells vs. CMJFR.
{M56} Figure 2t), tep panel, is a graph of relative CAM? response (if GHQ—Kl cells vs. C16— TR (C16 treprostinil allay], ester composition) challenge, at varietts dosages and, time paints Figure 2t), hettom panel, shews the ECSQ of me'l'R ever time, calculated frmn the CAM? response of CHQ~K l cells vs. (Sm—TR, lllll57} Figure 2l are graphs of relative cAMP respense tot" (THO-Kl cells vs. time, in se to challenge with CnJl‘R, , CmJl'R, or Sunonanylu’l'R (:SCng'R) at ll) uM (top panel) or 5 nM (bottom panel). {@658} Figure 22 {top panel) is a graph of relative cAMP response of {THO—Kl cells vs. 75679 (C;4-TR 45 mol %, squalane 45 mol‘Vfi chol-PEGZK ll) 93) treprnstinil alky ester eompesiticn challenge, at various s and time paints. Figure 22 (bottom panel) shews the ECSG of T679 over time, calculated from the CAM? se of CBS—Kl cells vs. 17679.
{M59} Figure 23 is a graph of relative CAMP respense 0f CEO—Kl cells vs time, in respense t0 challenge with treprnstinil, Trill (Chg-TR 40 mol %, sqttalane 4C! mel "/5, chol—l’litiiml: ll) mel %, DOPC l0 mcl 0At), or T679 (CM—"FR 45 mel %, ne 45 mol 9/5, clmlul?‘EGt2-: ll) mnl 0/6) at ll) lthl (tcp panel) or 5 uM (hottcm panel}. {fifioiii Figure 2.4, top penei, is a graph of reiative CAMP response of {THO—iii ceiis vs. T647 (Cm—TR 9i} moi "/5, choi~PEG2ir ii) moi %) stinii aiiryi ester composition chaiienge, at various s and time points. Figure. 24, bottom panei, shows the ECSG of T647 over time, eeicnioied from the CAi‘v’iP responses oi‘Ci-iO—Ki eeiis v. T647—TR. iiiiioii Figure 25 are graphs of reiative eAMP response of CEO-Ki eeiis vs. time, in response to nge with treprostinii, T631 {CH—TR 40 moi %, squaiane 4i) moi %, choi- PEGZk 10 moi 9/0, DOPC 1i} moi ‘72)), or T647 (CM—TR 9i} moi %, choi—PEGZK ii) moi %) at iLiVi (top panei) or 5 iris/i (hottom panel). {@062} Figure 26, top panei, is a graph of reiative CAM? responses of EEG—Ki ceiis v. 757637 (C1 s—TR 40 moi "/6, squaiane 4O moi "72>, ohoi—PEGZk ii} moi %, DOPC it) moi %) trepros‘iinii aikyi ester lipid nanopartieie composition chaiienge, at various dosages and time points.
Figure 26, bottom panei, shows the ECSO of T637 over time, eaicnieted from the eAi‘viP responses ofCi-iO—Ki ceiis v. '1‘637—TR. iiiiiéfii Figure 27 are graphs of reiative CAMP response of CEO—Ki ceiis vs time, in response to chaiienge with treprostinii, T555 (Cg-TR, 40 moi %, souaiane 40 moi %, ehoi— i’EGZk ii) moi %, DOPC 10 moi %), T556 (Cw—TR 49 moi %, squeiane 40 moi %, choi— PEGZR ii} moi %, DOPC it) mo 96), T568 (Cm—TR 4-0 moi %, squaiene 4i) moi %, choi— ir ii} moi %, DQPC ii) moi 9-4;), T63i (CM-TR 4i) moi %, squaiane 40 moi "72;, choi" PEGZk ii) moi %, DOPC 10 moi 9/6), T623 (Cm—TR 4i} moi %, ne 4G moi %, choi— PEG’Zk ii} moi "72;, DQPC 10 moi "7a), or T637 (Cm-TR 4i} moi "/6, squainne 4i} moi "72:, Choi- PEGZR ii) moi "/33, DOPC iO moi %) at. ii) nM (top panel) or 5 nM (bottom pnnei). {iiiioéi Figure 28 is a graph of the conversion rate (% of totei) over time (hours) for iinenr (CSTR) versus branched (2-dimethyi-i-propanyiii’i{, 3,3-dimethyi—i~hutanyi-TR, 2-ethyi—i" butanyi—TR, nyi-TR, or 3-pentanyi—TR) prostaeyciin compounds.
{W65} Figure 29 is a graph showing the conversion of treorostinii eon'ipoonds deriveiized with various iinear aiiryi chains, relative to the conversion of the treprostinii compound, derivatized with an octyi moiety (R2 = C3). Conversion was measured at i hr after incubation with esterase. {@966} Figure 30 is a graph showing the conversion of treprostinii compounds derivatizeri with s branched aihyi chains, relative to the sion of the treprostinii compound derivatized with an octyi moiety (R3 Cg). Conversion was ed at i hr after tion with esterase" {11116571115:1110 31 15 11 501101110110 01 the J:10g01'—NY1;f 11050 only 0111001011—110w 11011 0110051110 5y5't0111 (CH "1001100109051 "7050110011., N3, www.0nar050rg) 115011 101 5 24110111" pharmacoliihetics study. {111168} F1g110 321011.15 a, graph 01 05111111 1110011 plasma 101015 {mg/111i) 05 0 11111011011 01" 111110 {01' 11011105111111 and vari0115 1111131011 1100105111111 a131yl 051.01 10111111111110.1111. F1g11r0 3'2, right, a g1aph 0f 11011105111111 b10001 plasma 1017015 (11g/1I11L) 05 21 1711111011011 01111110 f0r 110p10511n11 and 1711110115 inhaled 511011 alkyl 051.01 111100110 10111111111110.1111. {1166.9} Ill'igure 33 15 a graph 01’ 1100105111111 and 11011105111111 aikyi 05101 00000111131100 1.11 1110 lung 01101 dosing with 1101111112011 1100105111111 5011111011 01' {01111111111011 11011105111111 alliyl. 05101 11510115. lungs W010 0011001011 at 6 1101115 01101 1105111g. "11600105111111 11111511 051.01: 00n0011110110n 15 1110501111011 215 11011105111111 0111111010111 011 21 111010 0050 {11157131171gu10 9, 15 a graph 1.1111011105111111 b10001 11101017015 (110111141 115 a 10n 0f 1.11110 111 1211.5 01101 11050—0111y 1111101511011 01 1101111112011 0013105111111 21.11131 051101: 10.111111111110115 Figure 34, 1110110111,, 15 11 graph of 11011105111111 and 11011105111111 alkyl 05101 010011 1110511111 10V015 {mg/1111.) 215 at 1110011011 01111110 111 1015 211101 11050—01113; 11111211011011 01700011112011 1100105111111 211113/1 05101 10110111011005. {111171} Figure 35, 10p 15 a graph 01" 110p10511111l 111000 p1051110 1011015 1M 05 a, f11110110n of 1.11110 31101 110111111/511011 0111110110115 1011 00111121110115 of C5~TR 01011005 (11050 0111y dosing) F1g111'03- :11 110110111 15 0 graph of 110p105111111 and (15—TR 1110011 111051110 10V015 (mg/11115) 05 0 11111011011 01‘ 111110 after 0.0101111211111011 0f V01110115 12011110111121.110115 01'" C 15—TR 10111101011005 (11050 011137 1310511115). {111172} F1g111‘0 36 15 a. graph 01 plasma 00000011011005 0f 110p105111111 (11g/111L) 111 1111111101011 (109,5 a5 3. 11111011011 01’ 1111110, after 3.1111110151101100 of 5111111 01‘ the T023 1 11511000111010 10111111101100 (Cm—TR 410 11101 %, 511110121110 40 11101 ‘34"), 0110013116211 10 11101 9/11, DGPC 11) r1101 94;). {111173} 0 37 1011. 15 a graph 01‘ 1100105111111 aikyi 05101 001110151011 10 1100105111111 05 11111011011 of 111110 for various 11011105111111 alkyl 051015 5011 10 rat lung 1155110 1101110g011at0.
Figure 37, 1117,1119 15 a graph 01’C12~11'0131'0511011 00.11v0151011 1.0 1100105111111 05 1110011011 01’ 111110 111 101, {10g and 11101111031 1.1111g 1155110 11010011011010. {1111741 191111110 '38 15 0 graph 0f 1110011 pulmonary 01101101 1110551110 (111F151?) 05 a f11r10110n 01’ 111110 111 11115 11001011 with PBS 1100105111111 T568 (Cu—TR £11} 11101/141, 1111110 40 111013-41 01101— PEGZk it) inoi %, DQPC it) moi 9/0) or T623 (Cm—TR 46 met %, squaiane 40 mol 0/6, choi— PEGZK it} moi %, DOPE l0 inol 9/9). {@075} Figure 39 top, is a graph of mean systemic ai pressure (tnSAi’) as a function of time in rats treated with PBS, treprostinii, T568 or 11623. Figure 39, bottom, is a, graph of heart rate as a function of time in rats treated with PBS, treprostinii, T568 or T623. {($76} Figure 40 is a graph of treprostinii blood a ieveis il) as a iimction of time in rats after administration of free treprostinit, T568 or T623. {0677} Figure 41 is a graph. of trenrostinit blood inasma ieyeis (rig/mm as a function of time in rats after administration of composition T763 i {M78} The term "alkyi" as used herein refers to both a straight ehain aikyi, wherein aihyi chain length is indicated by a range of s, and, a branched alkyl, wherein a branching point in the chain exists, and the total number of carbons in the chain is indicated by a range of s. hi exemplary embodiments, "alkyl" reters to an aihyi chain as , above containing 6, '7, 8, 9, it), 11, i2, 13, 14, 15,, '36 carbons (116., Cit—C15 aihyi).
{M79} The term "aikenyi" as used herein refers to a carbon chain containing one or more —carlmn double bonds, {thigh} The term "’aryl" as used herein refers to a eyeiic hydrocarbon, Where the ring is characterized by delocalized it electrons (aromaticity) shared among the ring members, and wherein the number of ring atoms is indicated, by a range of numbers. in exemplary embodiments, "aryi" refers to a cyclic hydrocarbon as described above containing 6, 7, 8, 9, or l0 ring atoms (126., {35—4310 aryl). Examples ot‘an aryi group inciude, but are not iiniited to, benzene, naphthalene, tetrahn, h and indane. {0981} The term "aihoxy" as used herein refers to —0—(athyt), wherein "aihyi" is as defined above. 32116821 The term "substituted" in connection with a moiety as used herein refers to a thither substituent which is attached to the moiety at any acceptabie ioeation on the " Unless otherwise indicated, moieties can. bond through a carbon, nitrogen, oxygen, suitor, or any other acceptable atom. {9383} The term "amino acid," refers to both natural (geneticaiiy encoded) and non~natnrai (non-genetically encoded) amino acids, and moieties f, ()f the twenty naturai amino . HzN—C—CozH acids, 19 have the general H where R . . . . . structure:_ is the amino acid Sidcchain.
The ZG‘h amino acid, proiine, is aiso within the scope of the present invention, and, has»; the toiiowing Structure: "OHNH . Of the twenty natnr‘ai amino acids, aii hat glycine is chiral, and both the D— and L amino acid iSomers, as weii as mixtures thereofa are amenable for use with the prostacyclin compounds; described herein. it is also noted that an amino acid moiety is encompassed by the term "amino acid." For e, the amino acid moieties R R #0" R l H | H E—C-COZH g—N-C-COZH N \ g—N—c—Co—EI H H 4"" H assed , , , by the term "amino acid." {neat} Examples of non—natural amino acids amenahie for use with the present invention include fisaianine (fi—Ala); 2,3—diantinopropionic acid "); nipecotic acid {Nip}; iic acid (Pip); ornithine (Gin); citi'uiline (Cit); t—butyiaianine (t—BuA); 2~thutyigiycine (thuG); Namethyiisoieucine (Meiie); phenyigiycine {PhG}; cyciohexyiaianine {ChA}; noi‘ieucine {Nie}; naphthyiaiahine (Nat); 4~chiomphenyiaianine (Phe(4—Ci)); 2—fiuorophenyiaianine (Phe{2~F)); 3~fluorophen yiaianine (Phe(3—F)); 4—fluot‘ephenyiaianine (Phe(_ 4~F)); peniciiiamine (Pen); 4—tetrahydroisoquinoline—3—cai'hoxyiic acid (Tic); [3—2— thienyiaianine (Tin); methionine soifoxide (MSG); hornoarginine (hArg); N~acetyiiysine }; 2,4adianiinohutyric acid (Dim); 2,3—diaminobutyi‘ic acid, (Dab); p- arninophenyiaianine (Phe (pNHgfi; N—methyi vaiine (MeVai); hoinocysteine (hCys), homophenyiaianine {hPhe); homoserine (hSei’); hydroxypioiine (i—Eyp}; oiine ); and the corresponding tiomer of each ofthe foregoing. Other nongeneticaily encoded amino acid es include 3—aminopropionic acid; 4—2nninohutyric acid; isonipeeotic acid (11113:); aza-pipecoiic acid (azPip); azawproiine (azPi'o'); o—aininoisohutyric acid (Aib); t:- aminohexanoic acid (Aha); 5~aminovaieric acid (Ava); N~itiethyigiyeiiie {MeGiy} {9085} A "peptide" is a polymer of amino acids (or moieties thereof} iinked by a peptide bond. Peptides for use with the present invention, comprise from about two to about fifteen amino acids, for example, two, tine", four, five, six, SeVen, eight, i'iine or ten amino acids (or moieties thereof). {asset The term "salt" or "salts" as used herein encompasses ceutically acceptable salts comn'ionly used to form alkali metal salts of free acids and to form addition salts of tree 'bases. The nature of the salt is not critical, provided that it is ceutically acceptable. le pl'iari'naceutically acceptable acid on salts may he prepared from an nic acid or from an organic acid, Exemplary pliannaceutical salts are disclosed in Stahl, til-i, Wermuth, CG, Eds. Handbook Qf‘Piiarinaceuticai Saks: Properties, Selection and Use; Verlag l—lelvetica Chimica Acta/Wiley—Vtiil-l: Zurich, 2082, the contents of which are hereby incorporated by reference in their entirety. Specific non-limiting examples of inorganic acids afe hydrochloric, bromic, hydroiotlic, nitric, carbonic, sulfuric and phosphoric acid.
Appropriate c acids include, without limitation, aliphatic, cycloaliphatic, aromatic, arylaliphatic, and heterocyclyl containing carhoxylic acids and sultonic acids, for example formic, , nic, succinic, glycolic, gluconic, lactic, malic, tartaric, citric, ascorbic, glucuronic, maleic, fumaric, pyruvic, aspartic, glutamic, henzoic, anthranilic, mesylic, stearic, salicylic, p—liydroxybenzoic, plienylacetic, ic, embonic (pamoici), methanesulfonic, ethanesultonic, benzenesultonic, pantothenic, esultonic, 2nliydroxyethanesulfonic, sulfanilic, cyclohexylaminosulfonic, algenic, 3~liydroxyhutyric, galactaric or galacturonic acid. le pharmaceutically able salts of free acid~containing compounds disclosed herein include, without limitation, metallic salts and organic salts, plary metallic salts include, but are not limited to, appropriate allrali metal (group la) salts, alkaline earth metal (group lla) salts, and other physiological acceptable metals. Such salts can he made from um, calcium, lithium, magnesium, potassium, sodium and zinc. Exemplary organic salts can he made from y amines, secondary amines, tertiary amines and quaternary ammonium salts, for example, trometliamine, diethylamine, tetra—N—methylammoniurn, MN"- dibenzylethylenediamine, chloroprocaine, choline, diethanolamine, ethylenediamine, meglumine {N—rnethylglucamine) and procaine. {9687l in one aspect, the present invention provides a prostacyclin compound, for example, a treprostinil derivative, or a composition comprising the sa,rne that is effective when employed in a once-daily, twice—daily or three»times daily dosing regimen, for example, for the treatment ofpulmonary arterial hypertension or portopulmonam hypertension in a t in. need thereof. The prostacyclin compound provided herein, in. one entitiodintient, can, be administered less frequently than treprostinil, with equal or r efficacy. Moreover, in one embodiment, the side effect profile of the con'ipounds provided herein is less deleterious than the side effect profile resulting from trcprostinil administration. These advantages, in one embodiment, allow for greater patient compliance. 'l‘reatrnent, in one embodiment, occurs h pulmonary administration of one of the compounds previded herein, for e Via a nebulizer, dry powder inhaler; or a metered dose inlialer. in some embodiments, a composition comprising one of the nds provided, herein is administered Via a nebulizer to a patient in need of PH treatment. in some embodiments a nd described. herein is suspended in a propellant and delivered to a patient Via a metered dose inhaler. {0088} in one aspect of the invention described herein, a prostacyclin compound of Formula (I), or a pliannaeeutieally acceptable salt thereof, is provided: RARHLHO R3 Formula (1), n R1 is NH, O or S; R; is H, a linear 3 alkyl, branched C5413 jg alkyl, linear (jg—(:13, alkenyl, branched {@ng alkenyl, aryl, aryl~C]—Clg allryl; an amino acid or a peptide; R3 is ii, (Ill-l, eptionally tuted linear or branched {314315 alkyoxy, (leoptionally substituted. linear or branched (2?ng alkenyL O—{C=Q}—optionally substituted linear or branched {314.315 alkyl, or O—(C:=O)—op'tionally substituted linear er branched €sz 15 alkenyl; R4 is an optionally substituted linear or ed (ill-{315 alkyl, or an optionally tuted linear or branched {72—ng alkenyl; and n is an integer from t) to 5, with the previso that the prostaeyelin compound ofFoninula (1) is not treprostini l. {0989} In a further embodiment a prostacyclin compound of Formula (1) is provided wherein R3 is 01-1 and n is 0 or l. In even a further embodiment, R4 is an optienally substituted linear or branched €3ng allcyl. ln even a r embodiment, R1 is \H or Q. lllll in one embodiment, a, prostaeyclin compound at" Formula (1) is provided, n R1 is Nil, 0‘ or S; R; is a linear (35"ng allcyl, branched {754313 alleyl, linear {lg-(:13 alkenyl, branched (Is—Cm alkenyl; R3 is H, OH or O—alkyl; R4 is an optionally substituted linear or branched {31th 5 allrylfi or an optionally substituted linear or branched £7ij 5 alkenyl; and n is an integer from 0 to 5.3 in even a further embodiment, R; is NH or G and R2 is a linear €9ng alkyl or a branched (Ts—C13 alkyl. {litfill in one ment, R2 is aryl or aryl-Ct—Cm ; R3 is CH and n is l} or i. in even a timber embodiment" R4 is an optionally substituted, linear or branched, {Tl—C; 5 alkyl. {($92} In one embodiment, the present invention es a prostacyclin compound of Formula (I), wherein the compound is a. compound of one of Formulae (la), (lb), (to) or {Id/L or a phannaceutieally acceptable salt f: 0 o o R2\O)J\/o o R2\NJl\/o H o R4 R4 R4 R4 R3 R3 R3 R3 Formula (la) Formula (lb) Formula (lo) Formula (id) Whereim R3 is H, a linear or branched (354313, alliylr linear C2618 allrenyl, or a. ed (134318 allrenyl; R3 is H, OH, optionally substituted linear or branched C1—C5 alkyoxy, 0—0ptionally substituted linear or branched (3243.55 allt'enyl, -0(C==={))—optionally substituted linear or branched (114315 alkyl, or JO(C===())—optionally substituted linear or branched (jg-C15 allrenyl; R4 is 0R5 an optionally substituted linear or branched (El-(315 alkyl, or an optionally substituted. linear or ed Cg-Clg alkenyli where R5 is H5 optionally substituted linear or branched (314315 alkyl, optionally substituted linear or branched {lg—(315 alkenyl, optionally substituted linear or branched {314355 alleyl, or (C=G’)—optionally substituted linear or ed Cngg alkenyl in a further embodiment? R4 is 0R5 with the proviso that the compound is not treprostinil, , 118.? R2 and R5 eannot both be H. {@593} in one entbedinient of Formula (Ia), Formula {Eb}, Formula (tie) and Formula {Mia R3 is a linear er branched Cs—Cig aikyi. in even a fin’ther irnent, R; ism(in or CIIR'R' l/ \ R RI I‘fli and nu are each independently an r seieeted fromA . , ‘ i to 9 and each , where occurrence of R’ is independently H? a Einear or branched €3ng aikyi, or a linear or branched C1-Cg aikenyi in even a fwurtherinbodirnent R2 ism m2 and mi and n12 are both 4° In another embodiment, R2 is "‘1 m2 and ml is 3 and 1112 is 4, or ml is 2 and 1:32 is 3. {@54th When mi and/or n12 i s an integer train 24.}, the rn 1/an at the end of the carbon chain is CH3, White the remaining nil/mil groups are CH3. n one embodiment oi Formuia (Ia), Formula (Eb) a (1e) and Formula (Ed) R) \l/V,W:\Q/V Or ASSV in a further embodiment, R3 is OH and R4 is 0R5 where R; is H, optionally tuted iinear or ed C1—C1:— ahcyi", optionally substituted iinear er branched Cz—C 15 aikenyh (C=O)-optionaiiy substituted linear or branched €5qu aikyi, or {C=O)uoptionaiiy substituted linear or branched {32—1315 aikenyt. {(31396} In one embodiment of Ei‘ormuiae (Eat), {Eb}, (5e) er (Ed), R; is H, R3 is {2333i and R4 is W 0 tR'R‘ - m1( )m2 CR’ 1 / \ OR5 and R5 is ' or R' R where m1 and m2 are each , , independently an integer selected from i to 9 and each occurrence of R" is independently H, a linear or branched (3]ng alkyi, or a iinear or branched. {71435 aikenyi. When nit and/or n12 is an r frern 2—9, the nil/n12 at the end of the carbon ehain is CH3, while the ing rnl/niZ greupa are Clilz. {$097} in another embediment, a prestaeyelin enmpnnnd of one ell Formula (la), (1h), (le) 0r (id) is previdetl wherein R3 is OH, as ed in one of Fni‘niulae (la) lib"), tin") or lid"): 0 O O R2\OJJ\/O R2\SJJ\/O R2\"JJ\/O Rz/NTO R4 R4 R4 R4 HO HO HO HO Fonnula (la’) Fermala {3‘0"} Fennula (10’) annula (ld’) n, R2 is H, a linear er branched (jg-(:33 allryl, or a linear or hranehefi (jg-{:18 allrenyl; and R4 is 6R5 an optionally substituted, linear or branched (SJ—€15 , alley}, or an nptienaily Substituted linear er branched (124315 alkenyl, wherein R5 is H, eptienally substituted linear er branched C1-C15 alkyl, ally substituted linear or branched €ng:- allrenyl, {tiI===())—0pti0nally substituted linear er branched (314315 ethyl, or ))—nptinnally substituted linear er hranehed CR'-(:15 allrenyle with the proviso that R3 and R; are net both E. ln one ment nl’ Fermula (la’), Formula (113’), Fonnula (le’) and Fen'tiuia (ld’), R4 is W elem / <0 and r2 R3 is "‘1 gr R' R' m1 (Jr is or R; CIZR'R' I/ \ R RI where ml and n12 are each independently an integer eeleeted tram.. . »\ l to 9 and each chunenee of R’ is independently H, a linear or branched CguCg alkyl, 01' a linear er branched C1-Cg alkenyl. In even a further embodiment, R3 is \/\jN\/\/ \i/5 5 {MEEPS} Yet another embodiment of the ion relates to 211:)1‘ostaejyrelin compound 0f one of Formula (Ia’ ’), (11)"), (10") or Gd"), or a pharmaceutieaily acceptable Salt thereefi O 0 0R5 0R5 R3 R3 Formula (Ial 5") Formula {lb ’ ’) H 2 T 0R5 0R5 R3 R3 Formula (10" ’) Formula (Id’ ’) wherein, R2 is H, a linear or branched {IS—C18 alkyl, linear {jg-€13 l, branched {3?ng alkenyl, aryl, ar3rl—C1—Cg alkyl; an amino acid or a peptide; and R3 is H: OH, ally tuted linear or branched C ij15 alkyexy, 0nally substituted linear or branched (7?ng alkenyl, O~{C==*Q}meptianally substituted linear or branched {Tl—€15 alkyl, or O—(C=O)~optienally uted linear er branched ere" alkenyl; R5 is El, optimally substlmted linear or branched (31415 alkyl, eptinnally subatituted linear or branched Cz-C 15 alkenyl, {C=O)—eptionally substituted linear er branched C1—C15 alkyl, er (C====G)—0ptienally substituted linear er branched C3—C5 all-genyl, with the previse that R3 and R5 are not 'beth H. In a further embediment, R3 is GH and R3 is S—nnnanyl, 4~heptylfl 4—oetyi, 3—oetyi, 2—diniethyini -propyi, 3,3—diniethyiwi—bntyi, 2—ethyi—i—bntyi, Supentyifl pentyifl nexyi, neptyh oetyi, nonyi, decyi, nndeeyi, dodeoyi, trideeyi, tetradeeyii pentadeeyh hexadeeyi, iieptadeeyi or oetadeeyi. in even a further embodiment, R3 is deeyi, i, dodeeyi, trideeyi, tetradeeyi, pentadeeyi, hexadeeyi, beptadeeyi or octadeeyi. in even a, further embodiment, R2 is a linear aiiqyi. {flfi9§} One embodiment of the present invention is directed to compounts of Formula (1c), (10") and tie"). in a r embodiment, R2 is a iinear C5~C 13 aikyi or a branched {Ts—C13, alkyl. In even a further ment, R2 is a linear {3.6qu aiiryi or a branched C6—C3 aikyi.
In yet a further embodiment, R2 is a linear C‘s-CM aikyii tag, a iinear C5 aikyL Cg aikyig Cm alkyl, C12 aiit'yl or C14 aikyi. {fifilflfl} in one ment, a compound of Formula fin") is provided n R3 is a iinear (Cs—{T18 aikyi; R3 is OH and R5 is H. in r embodiment, a compound of Forn'iuia (10") is provided wherein R; is a linear (jg-(:53 aikyi; R3 is (iii and R5 is Si. in yet embodiment a compound of Formula fie") is provided wherein R; is a linear €6ow aikyi; R3 is {Iii-ii and, R5 is H. in even another embodiment, a compound of Formnia Go") is provided wherein R2 is a linear ngCH aikyi; R3 is CH and R5 is OH. {sewn in one embodiment, a. compound of Formuia. (ie’ ’) is ed n R2 is a iinear (jg-{:13 aikyi; R3 is OH and Rg is H. in another embodiment, a compound of Eioi‘mnia tie") is provided wherein R2 is a branched (35—ng aikyi; R3 is 0H and R5 is H. in yet embodiment, a nd of Formula (10") is provided wherein R2 is a branched (154315 aikyi; R3 is 0H and R5 is H. in even r embodiment, a compound, of Forrnuia (10") is provided wherein R2 is a branched. {Cg-(234 aikyi; R3 is {)H and R5 is H. iiiiiiiiBZE in even a er embodiment, a compound of Formnia (is), (ic’) and (:ie") is administered. to a patient in need ofPH treatment via a metered dose inhaler.
{W103} in yet another embodiment oi‘Formnia (131")? (1‘0"), Go") or (id"), IR; is OH, (FR'R' ( ) /CF§' R5 is H and R3 ism1 m2 or R' R' where rni and m2 are each independently an integer selected from i to 9. in even a finther embodiment, R2 is V\jN\/\/ } In yet another embodiment of Formuia Ga"), , (10’ ’) or Gd"), R3 is H, R; O (FR'R' ( ) "3' is OH, and R5 is m1 m2 R' R. or where mi and 1112 are each independently an integer selected fmm 1 to 9 in even a furtbei ment, R2 is V\j~\/\/, {991%} in ene embodiment, a. eyeiin edmpound ofFormuia (i), (121), (1b), (lie) or (id) is previded Where R2 is a linear or branched (354313 aikyi. in a further embodiment, R2 is S—noiianvi, 4~heptanyL 4—eetanvi, Enoctanyl, Zudimetbyi—iwpi'opanyi, 3,3-dimetbyi—i—b11tanyi, 2eihyi—i—butanyi2i~pentm1yL penivi hexyi, hepivi, 0etyi denyi, deeyi, undeeyi, dedeeyi, trideeyi , tetradeeyi, pentadecyi, hexadecyi, eeyi er oetadeeyi. {391%} in one embodiment, a, prostacyeiin compound of Formula {1), {121), (1b), (1c), (id), (ia’), (ib’), (Ic’), (Id’), (121"), Ob"), Ge") 01 Gd") is provided Where R2 is a iinear or branched (Ts—C13 . In even a further embodiment, R2 is a iineer {Ts—€13 eikyi. In another (#1) £35 embodiment, R; ism m2 or R' R where m1 and m2 are each independentiy an integer selected from 1 to 9 and each occurrence ef R’ is independently H, a, linear or branched C1-C8 aikyi, or a linear or branched {fl—Cs aikenyi. in even a further embodiment, R3 VVMLV, JNV, ALV: VWKN, {MIME In another embodiment, a prostacyciin compound of Formula (1)," (in); (1b), {1e} or (Id) is provided wherein R2 is a branched Cg—ng alkyi. in a, further embodiment, R2 is —nonanyl, 4—hepty1, 4~octyL 3-Day}, 2—dimethyi~inpl‘opyi, 3,3—din1ethyi~inbutyl, Z—ethylwl- butyl, 3~pentyL pentyl, hexy]., hepiyi, ootyi, nonyi, deeyi, undecyie }., "widecyig tetradecyi, pentadecyl, cyl, heptadecyi or octadecyi. {@0108} In one embodiment of the invention, the oyclin compound of the nwel'ttion has the foilowing structure: wherein R1 is NH, (I) or S 399M393 For example, R1 is. O or N, and one ofthe foiiowing nds (S—nonanyl n‘eprostinil (alkyl esterfi 5Cg—TR} or nyi h‘eprostinii (amide linked; 5C9nTRnA) is provided: H5 or N: "J: {WEN} in one embodiment, a prostaeyelin compound of Formula (I), (la), (Eb), (le) or all CER'R‘ 1 . . . l ) m1 m2 ./ (Ed) 15‘ prowded wherein Rg 18 or R R. where mi and n12 are each independently each an integer selected from i to 9 and each occurrence of R" is ndently H, a linear or branched {:l-Cg alkyl, or a linear or branched {Tl—Cs alkenyi. {fifilil} When 1111 and/or m2 is. an integer from 29, the nil/1112 at the end of the carbon chain is CH3, while the remaining nil/r112 : are C337,, {091.12} 111. even r embodiment, a compound ei‘Fomiuia (ii), (111), 1: Eh), (11;), (id), (121’), (lb’), (1113") (Id’), Ga") , fie") or (Idle) 15; provided and R3 is \/ 1% The cornpoui'ids provided herein can 31111311111: a, symmetrical branched ailryi or (13%),, an asymmetrical branched alkyl as 1hr: R; moiety. For e, where R; is m1 mi and 1112 can be the same integer and R2 is therefore a symmetrical branched ailryl. R3 is an assynietrieel branched aiiiyi when mi and 1112 are different {33114} In another embodiment, a compound of Formula. (I), (121), (lb), (11:), (1d), (111’), (lb’), (lc’), (id’), (1‘51"), Uh"), (513") or Gd") is provided, RZ i5 m1(3),, 1111 is 2 and 1112is 3 1111 and 111?; are each independently 4-, 01 ml andrmm2a1e each independently 3 {W115} in another en’ibmiiment, the prostaeyeiin compou1:1d ses an asymmetrical hranclied alkvl at the R; position sueh as {01 example Enliexanyl (3C5),.1 heptanyl (21:7), 3-heptany1 (3C7), 2-octanyi (2C3), 3~ectanyl (3C3), or nyi (4138). {991.16} In another embodiment. a. prostaeyeiin compound of For‘ntinla (ii), (in), (1b), (is) or (id) is provided wherein R12 is 11 branched alkyl seieeted from 2,2—diethyl—1—pentyi, .3.— pen‘wl, 4—oetyl 5~nonanvl, -—ethyll~buiyh 2~propyl~i~peniyL i2—butyl—i ~ee‘1yl, 2—dirnethyl— l—propyl, and 3 ,3 -di1ne1by i —1 —butyl. {dfiii’i’} in another embodiment, a. prostaeyciin compound of Fermnia, (i), (is), (_1b} (in), (id), (ia’), (Ib’) (30’) or (id’) is provided, wherein", R2 is a iinear or branched C5~ng aikenyi. For example" in one embodiment, R; is a linear C5—C3 aikenyi seieeted from pemenyi, hexenyL heptenyi, octenyig nonenyh i, undeeenyi, trideeenyh ietradeeenyi, peniadeeenyi, ceny}, heptadecenyi or octadeeenyi. in a further embodiment, R3 is 01-1. in another ment, R2 is a branched {35-ng aikenyi selected from pentenyif, hexenyii, heptenyl, octenyi, nonenyl, deeenyi, undecenyi, n'idecenyi, tetradecenyi, pentadeeenyi, hexadeeenyL heptadeeenyi or oetadecenyi. In a further embodiment R3 is OH. {03118} In one embodiment, a, prostaoyciin compound of Formula (I), (la)? (1b), (10) or (id) is provided and R is OH . in a r embodiment, R4 is {$011593 in one embodiment a pi'ostacyelin compound of Fennnia {i}, (is), (iii), (icy) or (Ed) is provided and R; a. linear ngC18 silky}? R3 is 0H and R4 is OH . in a. further embodiment, RQ is Ssnonanyi, yi, zit—octanyh 3~oetanyL ZedimetiiyE-l—propyi, metiiyini"butyi, Z—ethyidmbutyL 3—pentyi, pentyla iiexyi, heptyifi oetyif, nonyL decyif, undeeyi, dedeeyi, trideeyl, tetradecyi, pentadecyi, hexadeeyi, iiepiadeeyi or oetadecyi.
{WEN in one embodiment, a prostacyclin compound of Fonnnia (i), (is), (iii), {Io} or (Ed) is ed and R2 hexyL dodeeyi, eeyi, hexadeeyif, 5—iionenyifi anyi, 4~ oat-any}, Iiwoetanyi, 2—dimethyi~i i, 3,3-dimethyid~bntyi, Z—eih'yi-i -bntyi, 3—pentyi, R3 is OH and R4 is OH {09.1le In one embodiment, a prostacwiin componnd oi‘Fontnuia (1),, (In), {1b} (in) or (Id) is provided and R2: hexyi, Rs is OH and R4 is CH {M1221} In one embodiment, a, prostaeyelin compound of Formula (I), (in)? (1b), (is) or {id} is provided and R2 hexyi, R3 is 0H and R4 isiii/YW‘CH {@123} in another embodiment, 3’\ a eyclin nd of Formula Ga"), {in 3-» He") or (id") is provided. and R2 hexyl, R3 is OH R4 is H. In a further embodiment, the. compound is a compound of Formula Go"). In yet another embodiment, a pi‘ostaeyeiin compound of Formula Ga"), (1‘0"), fie") or (id") is ed and R; dodeeyi, eeyi, pentadeeyi or hexadecyl, R3 is OH R4 is if}. in a finther embodiment, the compound is a compound of Formula (121,"). in even a r embodiment, the compound is present in a iipid nanoparticle formulation as described in more detaii beiow, {60.1214} In one embodiment, a prostacyciin compound of Fonnuis (i), (Ia)g (1b), {is} or (Id), or aeeutically acceptable salt, is provided, and R2: heptyi, R3 is OH and, R4 is {@125} In one embodiment, a, prostaeyoiin compound ot‘Fonnuia (i), (la), (1b), (in) or (id), or pharmaceuticaliy aeoepta‘oie salt, is provided, and R2 oetyl, R3 is OH and R4 is {$3126} in one embodiment, a prostaeyelin compound of Formula (i), (is), (_ 1b), (is) or {id}, or phannaeentieaiiy acceptable salt, is provided, and R; nonyi, R3 is OH and, R4 is {$01273 in another embodiment, a prostacyciin compound, of Formula (it), (in), (1b), (is) or (id), or phamiaceutieaiiy acceptable sait, is provided, and R3 decyi, R3 is OH and R4 is W.OH {W128} In yet another embodiment, a pi‘ostacyeiin compound of Formnia (I), {is}, {Eb}, (10) or (1(1), or phannaoeutiealiy acceptable salt, is provided, and R2 i, R3 is CH and R; is OH {@6129} In even another embodiment, a ptostacyciin compound of Fotmuia (i), (is), (1‘0), (It?) or (id), or phzmnaeeutieaiiy acceptable sait, is provided, and R2 dodeeyi, R3 is OH and R4 isW.OH lfifiliitl} in one embodiment, a prostaeyelin compound of Formula (l), (la), (lb), (le) or (id), or plittnnaeeuticelly acceptable salt, it; provided, and R2 trideeyl, R3 is CH and, R4 is {@131} In another embodiment, a prostacyclin compound of a (l), (la), (lb), (la), or {id}, or pharmaceutically acceptable salt, is. provided, and R2, tetradecyl, R3 in OH and R4 is OH {06132} In. even another embodiment, a. pmstaeyclin compound of Fonnula. (1), (la), (lb), (1c) or (Id), or pharmaceutically acceptable salt, is provided, and R2 pentadeeyl, R3 is on and R4 is OH {lllllflfi} Another embodiment of the invention eoneems a pi'ostaeyelin compound of Formula (I), (la), (lb), (lc) or (Id), 2101' phannaceuticelly acceptable salt, wherein R2 hexadeeyl, R3 is ()l-t and, R4 is OH lilltll34i Yet another ment of the invention concerns a, prostacyelin compound of Fonnula, (l), (la), (lb), (lo) or (iii), a or phannaeeutieally acceptable salt, wherein R2 decyl, R3 is OH and R4 is- OH {@135} Yet another embodiment of the invention concerns a prostaeyelin compound of Formula (1), (la), (lb), (lo) or (id), or a pharmaceutically able salt, wherein R2 oetadecyl, R3 is CH and. R4 in OH {M3136} in one embodiment, a, compound of Formula (3}, (in), (lb), {lo} or (id), or a ceutically acceptable salt, is provided, wherein one or more hydrogen atoms is substituted with a, deuteiiuin.. Accordingly, in one ment, the present invention relates; to an isntopologue of Formula (23), (la), (lb), {lo} or {iii}, substituted with one or more deuterium atoms. The ologue of Formula (1), (la), (in), (lo) or (lit) may he used to accurately determine the tration of compounds of Formula (i), (la), (lb), (tel or on) in biological fluids and to determine metabolic patterns of compounds of Formula (l), (la), (lb), (is) or (id) and its isotopoiogues. The invention further provides compositions comprising these deuterated isotopoiogues and methods of treating diseases and, conditions, as set {with herein.
{M3137} in another aspect of the invention, a, prostaeyeiin compound ofForniuia (H), or a pharrnaeeutieaiiy acceptable salt thereof, is provided: R2 \R1JLHn/o Formula (11), wherein R1 is NH; O or S; R3 is a linear or branched ij'CJg alkyi, a linear 03¢ng alikenyi or a branched {$33ng aikenyia aryi, aryE—Cl—Clg silky}, an amino acid or a de; and n is an integer from O to 5. {@138} in one einhodnnenn a cyciin compound of Fonnuia (11)., or a pi’iai‘inaceutieaiiy ahie salt thereof", is provided, n R1 is NH, (I) or S; R3 is a iinear or branched 03»ng aikyie a linear C2"C'g i or a branched C3413 aikenyi; and n is an integer from i} to 5. in a fiirther embodiment, n is I and R1 is NH or 0‘ {@0393 in one embodiment, the present invention relates to the prostaeyeiin nd ofFonnuia (11),, wherein the compound is a compound of formula (Ha), (11b), (He) or (Bid), or a pharmaceutieaiiy acceptabie saitthereof: O O R2\OJ‘J\/O R2\S)K/O Forrnuia (Ha) Formula (1113) 0"" I H5 H6 Formula (110) Formula (11d) wherein. R2 is a linear er branched {ls—{713 aikyi, a linear {jg-€13 alkenyl, or a branched (334318 alkenyl, aryl, aryLCrCIg aikyi, an amine acid er a peptide in a further embodiment, a compound of formula. (11a), (11b), (110) or (lid) is provided wherein R2 is a linear er ed (is—Cu; alkyl, a linear (fig-{:13 allrenyi er a branched (lg-{313 alltenyl. 1n nne embodiment, a compound, of Formuia (11), (11a). (1113),, (He) or (11d) is prevideth wherein one er mere hydrogen aten'is is substituted with a deuterium, Aenerdingiyr in nne embedirnenL the present invention relates to an isntnpningue of Fermula. (ill)a (11a), (11b), (:11c) or (11d), substituted with ene or more deuterium atoms. The isetnpeiegue of Fernmht (ll), (11a), (lib), (lie) er (11d) may be used to accurately determine the coneentratien 0f cempennds of Fermnla (11), (11a)? , (110) 0r (lid) in bielngicai fluids end te determine metabniie ns 01’ eempeunds of la (ill), (11a), {lib}, {116) 01' (11(1) and, its isetepnlegnes. The invention further prevides eempesitiens comprising these deuterated isotopelogues and s ef treating diseases and ennditiens, as set forth herein. {11111411} in ene embodiment, the prestacyclin derivative is a nd, of Formula (11C). in a further embodiment, R3 is a linear C5—C5; alkyi or a branched C5613 alkyi. For example, in ene inient, R2 is a linear (ifs—(:13 aileyi. in another embediment 0f Ei‘ni‘ninla (110),, R2 is a. linear 0 alkyl. 1n even a further einbedinient 0f Fni‘rnnla (11c), R2 is a hexyl, heptyi er netyl. {(311141} Compounds efliormuia {113) and FOi’i'fl'ilifi {E id) are provided in, tables A and 8 below. eA. Cam ennds la 1.1a R2" linear C5—C3 alkyl R2...branehed (lg—C13 alkyl R2... linear Cg alkyl R2 branched C6 alkyl R2 linear (36C; 3 alkyl R2 branched €6ng alkyi R2 linear Cg alkyl R2 branched C7 alkyi R2 linear {37-ng alkyl R2, branched (37-ng alkyi R2 linear Cm alkyt R2 branched Cg alkyi .........................................................................................................................................................................................................................................................
Table Ac Cam nands (if a Ila R2, linear Cir-C18 allryl R2 branched (33»ng allryl R2, linear C31 alkyl R; branched Cg alkyl : 5 : ----------------------------------------------------------------++ R3: linear C9313 allzyl l R, branched (39—ng allryl R/ linear C39, alkyl R2 : branched C10 alkyl . l : ----------------------------------------------------------------+- -------------------------------------------------------------+---------------------------------------------------- ----------------------------------------------------------------i R2 : linear C104:13 alkyl R3 : branched C30~C13 alkyl R3 : linear C13, alkyl R3 : branched C11 alkyi .
R2 : linear Cl 1-C13 alkyl R3 : ed C; 1~C13 alkyl R3 : linear CM alkyl R: : branched Cm, alkyl R; linear C1TC" alkyl R2 branched Gig-(:13 alkyl R3, linear C15 alkyl R; ed C13 alkyl "';ii'éib‘i3'§Z"'i53E'"Eleni;'Eiiiiiiiliiiiiiiimiié""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" R2 = linear C5—C1; 3 alkyl R2 = branched (3—018 alkyl R3 = linear {:6 alkyl R2 = branched Ce alkyl Rg linear (lg—(333 alkyl R3 branched {764313 alkyl R3 linear C7 alkyl R; branehed C7 alkyl R; linear {Pp-Cm allryl R3 2 branched {T’r'CES alley} R; 2 linear C3 allryl R3 branched Cg allryl R2 : linear CC} 9, alkyl R2 : branched (jg-C1 g alkyl Kg : linear Cm alkyl R; : branched Cm alkyl R2: linear R allryl R2 : branched Cm—Clg alkyl R2 : linear C1 1 alkyl R2 : branched Cr 1 alkyl Ra: linear {Ts—C12 alkyl R2 ,7: branched C5—ng alkyl R2- linear C33 alkyl R; : branched C13 alkyl R2, linear {Ta-Cw allryl R2, ed Ce-Cre allryl R2 linear C3 3 alkyl R; branched C13 alkyl ......................................................................................................................................................................................................................................................... {@3142} Yet anether embodiment of the invention relates to a prestaeyelin canipeand 0f Ei‘er‘rnnla {ill}, er a eeurieally acceptable salt therenf: R2\R1J‘J\/O 0‘" R5 ReOI"! (Formula Hi), wherein R1 and R2 are defined as previded for Formula. (I) and (H), and R5 and, RS are independently selected frern l-l, ep‘iinnally Substituted linear er branched (SJ—CH alkyl, ally substituted linear er branched C2—C5 allrenyl, (CFO)— eptinnally substituted linear or branched C3415 alkyl, 01" (C:O}«013'tionally subarilaled linear or branched C2—C1 5 allienyl, with the proviso that the prostaeyclin compound of Formula (ill) is not treprostinil, {thildSl in one embodiment, the branched chain cyclin compounds provided herein exhibit both higher solubility and slower enzymatic conversion to treprostinil relative to a linear chain derivatized prostacyclin compound. in one embodiment, an asynnnetrical branched chain prostacyclin nd is provided, wherein the asymmetrical branched, chain, prostacyclin compound is more stable than a corresponding trical branched chain prostacyclin compound. {96.14% in. one embodiment, the present ion es prostacyclin compounds that contain a chiral moiety at one or more of the R2, R5; and/or R5 positions. For example, the moiety at position R3, in one ment, is a chiral moiety and comprises either the R isomer, the S isomer, or a mixture thereof. An l isomer at position R2, R5 and/or K; can also be classified with the D/l_, nomenclature. For example, where R2 is an amino acid or an amino acid moiety, the amino acid or amino acid moiety can be the Duisomer, L—isomer, or a mixture thereof. {lillldii} in one embodiment, one or more of the R2, R5 and/or R6 moieties is the R isomer or S isomer. in another embodiment, one or more of the Rg, R5 and/or Rig moieties provided herein comprise a mixture of R and S moieties. The "R isomer" or "S ier" as used herein refers to an enantiomerieally pure isomer. An "enantiomerically pure isomer" has at least 93%, at least 95%, at least 96%, at least 97%, at least 98%, or at least 99% pure R— or S— isomer or when using the DZL nomenclature, Du or er, A racemic compound is a compound having a mixture in equal amounts of both enantiorners. {@9146} In another aspect of the invention, the prostacyclin compound described herein is provided in a composition, for example, for delivery, to a. patient for the treatment of pulmonary hypertension (PH). Compositions can include the compound, a pharmaceutically acceptable salt of the compound, or a ation thereof. in one embodiment, the Ell-l is pulmonary arterial hypertension (PAH). Pi‘ostacyciin compositions (so called "lipid nanoparticle itions") and tbnnuiations comprising a prostacyclin, a cationic compound, and a surfactant have been described in FCT publication no. WO mid/085813, the disclosure of which is hereby incorporated by reference in its entirety for all purposes.
The itions described in W0 Emil/9858B are amenable for use with the prostacyclin derivative eon'iponnds ed herein. {tltllcl’l’} in one embodiment, the composition ses one of the prostacyclin compounds described herein, i..,e a. compound of Formula. {1), (la), (lb), (lo), (lo), (lad, (lh’), (lc’), (ld’), (lal’), (lb’l), Ge"), lid"), (ll), (Ila), (lib), (lie) (lid), or (ill), and an amphiphilic agent. When fonnulated together, in one embodiment, the prostacyclin compound and amphiphilic agent form micro- or nanoparticles. in one embodiment, the amphiphilic agent is a. PEGylated lipid, a surfactant or a block copolymer, in another embodiment, the prostacyclin composition provided herein comprises two or more of the prostacyclin nds bed herein (eg a, compound of a ti), (la), (lb), (lo), (id), (la’), (lb’), (lc’), (lid’), (121"), (lb"), tile"), Gd"), (ll), (Illa), {lib}, (lie) (Nd), or (ill), ing ated compounds) and an amphiphilic agent (cg, l’EGylated lipid, a lipid, a surfactant or a block copolymer). in one embodiment, the prostacyclin composition comprising the prostacyclin compound component and amphiphilic agent, when formulated together, comprise a plurality of nanoparticles. In a further ment, the mean diameter of the plurality of nanoparticles is from about 20 nm to about 7G0 nm, for example about St) run to about 500 nm, about lOO nm to about 600 nm or about lOG rim to about 590 nm. When the amphiphilic agent comprises a lipid, e.g., a PliGylated lipid such as Cliolesterolsl’lit’i or distearoylphosphatidylethanolamine—l’EG (USPS—PEG), the composition is described as comprising lipid nanoparticles, llllllcltl} in a further embodiment, the prostacyclin composition comprises a prostacyclin compound of Formula (I), (la), (lb), (1c), (ld), (la’), tlb"), (lc’), (ld’), Ga"), ab"), tie"), are"), (ll), (lla), (lib), (lie) (lid), or (ill), and a l’EGylated lipid, as the amphilplrilic agent. In a further embodiment, the ated lipid comprises PEGll-llll— PEGSGllll. For example, in one enibodin'ient, the PEGylated lipid comprises PEG4GO, PEGSGG, PEGlOOO, 0, PEGEEOGQ, l’EGIltlllll, or PEGSGGQ. in a further embodiment the lipid component of the PEGylated lipid comprises cholesterol, dimyristoyl phosphatidylethanolamine , dipalmitoyl phosphoetlianolamine (DE’PE), distearogvrlphospliatidylethanolamine (DSPE), dimyristoylglycerol glycerol (DMG), diphosphatidylglycerol (DPG) or disteraroylglycerol ). in even a further embodiment, the PEGylat-ed lipid is cholesterol—P562006 or 3339313562899. {@149} Depending on its molecular weight (MW), PEG l3 also referred to in the art as polyethylene oxide (PEG) or polyoxyetliylene (PCB). The l’tiGylated lipid can e a branched or unbranched PEG molecule, and is not d by a. particular FEG MW. {00150} For example, the ted lipid, in one embodiment, ses a PEG: molecule having, a. molecular weight of 300 g/rnol, 400 g/moi, 500 g/niol, 1000 g/moi, l500 g/niol, 2000 ol, 2500 g/niol, 3000 g/niol, 3500 g/niol, 4000 g/inol, 4500 g/inol, 5000 g/mol or "3,000 g/rnol. In one embodii’nent, the PEG has a MW of l000 g/rnol or 2000 g/mol. {0%151} The lipid ent of the PEGyEated lipid, can have a net—charge (eg cationic or anionic), or can be net—neutral. The lipids used, in the Pilitjy'lated lipid component of the present invention can he synthetic, serni~synthetic or natni'allyuoccnrring lipid, including a phospholipid, a sphingolipid, a giyeolipid, a eerarnide, a tooopheroi, a steroi, a. fatty acid, or a glycoprotein such as albumin. in one embodiment, the lipid is a sterol. in a further embodiment, the sterol is Cholesterol. In another embodiment, the lipid is a phospholipid. Phospholipids include, but are not limited, to pliosphatidyleholine (PC), phosphatidylglycerol (PG), phosphatidylinositol {i’l}, atidylserine (PS), phosphatidylethanolamine (PE), and 'phosphatidie acid (PA). in one embodiment, the oli‘pid is an egg phospliolipid, a soya phospholipid or a hydrogenated egg and soya phosphohpid, in one embodiment, the PEGylated lipid comprises a phosphoiipid. in a further embodiment, the phospholipid comprises ester linkages of fatty acids in the 2 and 3 of ol positions containing chains of 12 to 26 carbon atoms and different head groups in the 1 position of glycerol that include choline, ol, inositol, serine, ethanolar’nine, as well as the corresponding phosphatidie acids. The chains on these fatty acids can he saturated or unsaturated, and the phospholipid can he made up of fatty acids of different chain lengths and different degrees of unsaturation. in particular, in one embodiment, the PEGylated lipid of the prostaeyclin composition provided herein comprises distearoylphosphoethanolarnine (BSE’E), dipalmitoylpliosphatidyleholine , dioleoylphosphatidyleholine (DOPC) dirnyristoyl phosphatidylethanolamine (DMPEL dipalinitoyinhosphoethanolantine (DPPE), distearoylphospl‘iatidylethanolamine (ESPEL dimyristoylglycerol (DR/l6), diphosnhatidylglycerol (DPG) or disteraroylglyeerol (DSG). {00152} Other examples of lipids for use in the itions sing PEGylated lipids disclosed herein include dimyristoylphosphatidylcholine (Dh/lPC), dimyristoyiphosphatidylglyeeroi (DMPG), dipalrnitoylphosphatidylglyeeroi (DPPGL di stearoylphosph atidyleho l ine (DSPC), iii stearoylphosphatidy l glycerol (DSPG} dioleylphosphatidylethanolainine (DOPE), and mixed pliospholipids such as pairnitoylstearoylphosphatidy[choline (PSPC) and paln‘aitoylstearoylphosphalidyiglyeerol (PSPG), tiiaeylglyceroi, diaeylglyeerol, cei'amide, sphingosine, sphingomyelin and single ed phosphoiipids such as ieoyl—phosphatidyieti'ianolamine (it/301333), in another embodiment lipid portion of the PEGyEated lipid ses an um salt of a fatty acid, a olipid, a. glyoetide, a. phospholipid and giyoeride, a stei'ol (tag, cholesterol), phospliatidyiglyeeroi (PG), atidie acid (PA), a phosphotidyleholine (PC), a phosphatidylinositol (Pl), a phosphatidyiserine (PS), or a combination thereof. The fatty acid, in one embodiment, ses fatty acids of carbon chain lengths of .12 to 26 carbon atoms that are either saturated or unsaturated. Some specific examples include: myristylamine, palmitylamine, iaurylamine and stearyianiine, diiauroyi ethylphosphooholine (DLEP), dimyristoyl ethylphosphocholine (DMEP), dipahnitoyi ethylphosphoehoiine (DPEP) and distearoyl ethylphosphoeholine (DSEP), N—(Z,3—di—(9(Z)~oetadeeenyloxy)~prop—l—yl— \,N,N—trimethylammonium chloride (DOTMA) and l ,2-bis(oleoyloxy)—3 — (trimethylaimnoniomropane (DOTAP). es of stetols for use in the compositions provided herein include cholesterol and ergosterol. lfixamples of PCES, PAS, Pia, PCS and l-"Ss for use in the compositions provided herein include EMPG, DPPG, DSPG, DMPA, DPPA, DSPA, DMPL DPPl, DSPI, DMPS, DPPS and DSPS, SSE’C, DPPG, DMPC, DGPC, egg PC and soya PC. {@153} in one embodiment, the ted lipid is eliolesteroleEGZGGQ, ESPE— PEGE one or DSCE—ldEGlefltl. {fifilfid} in another ment, the prostacyelin composition provided herein comprises a prostaeyelin compound of Formal-a. (I), (ta), (1b), (lo), (id), (121’), (ib’), (Ic’), (ld’), Ga"), Uh"), Ge"), {501"}, (it), (Eta), (lib), (lie) (lid), or (iii), and a hydrophobic additive. in a inrther embodiment, the composition comprises an amphiphilie agent, eg, a.
PEGyl-ated iipid, as described above.
{WEISS} In yet another embodiment, two or more of the ptostacyclin compounds described herein (eg, a compound ot‘meul-a {E}, {1a), (1b), (10), (Id), (ia’), (113’), (10"), (Id’), (121"), (lb"), Ge"), Cid"), (ll), (Ila), (lib), (lie) (ild), or (33D) an amphiphiiie agent (rag, PEGyiated lipid, a. lipid, a surfactant or a block mer) and a hydrophobic additive are provided in a composition.
{MISS} In one embodiment, the prostaeyolin eompoeition comprises a ptostacyolin nd of Formula (I), (la), (lb), (lo), (Id), (ia’), (lb’), (ie’), (id’), Ga"), ab"), tie"), Gd"), (ll), (Eta), (llb), (lie) (lid), 01' (ll!) and a Pliéiiiylated lipid. in another embodiment, the prostacyciin composition comprises a. prostacyciin compound of Formula ti), (Ea), (1b), (1c), (id), (ia’), (113’), He"), Gd"), Ga"), (3%)"), tie"), Gd"), (II), (Eta), (lib), (Ho) (Hd), or (iii) and a surfactant. in yet another embodiment, the prostacyctin composition comprises a cyciin compound of Formuia (I), (Ea), (1b), (to), (id), (ia’), (113’), (ic’), (id’), , flit"), tic"), (501"), (31), (Ha), (Bib), (tic) (Hd), or {iii}, a hydrophobic additive and an amphiphilic agent. In a r embodiment, the amphiphitie agent is a surfactant, a PEGyiated iipid or a ‘biock copoiymer. in even a bother embodiment, the aniphiphiiic agent is a PEGyiated lipid.
{W157} In one ment, the prostacyciin compound is present in the composition at 5 molt/é; 99 moi%. in a further ment, the aoyciin compound is present in the composition at 4Q niol% m 95 1110191). In a further embodiment, the prostacyciin compound is present in the composition at 40 moi% 6t) nioi‘E/s. in one embodiment, the prostacyciin compound is present in the composition at about 40 moi‘h’; or about 45 moi%. {@158} The amphiphiiic agent, eg, a PEGyiated iipid, when present in the composition, in one embodiment, is present at it} fllfliii/o 30 rnoi%, for e, it) moi% 2t) moi% or 15 15110in — 25 1110192.». In even a further embodiment, the PEGytated lipid is present in the composition at about it) moi% or 2Q mot%. ibbtfii‘ii The hydrophobic additive, when present in the composition, in one embodiment, is present in the composition at 25 molt?" — 5% 1110196, for example, 30 moi% — 5t} moi%, 3:3 inflifi/E‘: 45 mol%. in even a further embodiment, the hydrophobic additive is present in the eomposition at about 4t} mow?) or about 4.5 ntoi%. {anion The prostacyolin composition, in one embodiment, eomprises a compound of ES’ormuia (I), (la), (1h), (1c), (1d), (321’), (ih’), (10‘), (id’), Ga"), ab"), tic"), 6d"), {it}, (Eta), (Bib), (He) , or (III), or a. ceutieaiiy acceptabie sait thereof, as described herein, an atnphilphiiic agent and a hydrophobic additive. In one embodiment, the hydrophobic additive tog, an additive that is at ieast partially hydrophobic) is a hydrocarbon, a e compound or a hydrophobic lipid (tag, toeopheroi, tocopheroi e, sterot, sterot ester, alkyl ester, Vitamin A acetate, a ceride, a phosphoiipid). in one ment, the composition comprises a prostacyciin compound, for exatnpie, a nd ot‘Fontnuia (i) or (it), an amphiphiiic agent, and a hydrocarbon. The hydrocarbon can be aromatic, an aikane, alhene, cycioalkane or an aikyne. In one embodiment, the hydrocarbon is an aikane (tie, a saturated, hydrocarbon). in another embodiment, the hydrocarbon is a (jig-{:50 hydrocarbon, In a, r embodiment, the hydrocarbon is a C15, C520, C35, C30, C35, C40, C45 or C50 hydrmtarboo. In yet another embodiment, the hydrophobic additive is a {$154725 arbon, C15~C35 hydrocarbon, C15-C45 hydrocarbon, €154ng hydrocarbon, {Sm—C25 hydrocarbon, €37,5— ng hydrocarbon, (730—ng hydrocarbon, (335-sz hydrocarbon, Cate—C45 l’tydrocerboo or a C45— {259 hydrocarbon. {@161} In one embodiment, a composition comprising a pt‘ooteeyciio compound, an, amphiphilic agent and a. terpene oo'o'lpouod (eg, the hydrophobic additive) it: provided. The composition, in a further embodiment, comprises a ted iipid as the hiiic agent.
However, as noted above, bioek copoiymers as welt as surfactants can be used as the amphiphilic component of the composition. The terpeoe compound (hydrophobic additive}, in one embodiment, is a hydrocarbon (6.5g. isopteoe, gooelaneor squalene). In another embodiment, the ne compound is a hemitet‘peoe ((353333), monotetpene (tint-{15), sesquitetpene (CHEM), ditetpene (C20H3z) (6g, eafestoi, kahweot, cembrene, taxadieoe), seotertemene (Clo-140), peoe (Cygfiqg), oesouatetpeoe {C35}{56), tett‘aterpeoe (C4DE5554), polytetpene (6.53., a polyisopreoe with trons double bonds) or e oorisoptenoid (6.5., 3—oxo—o— iooo}, 7,8«dihydtoionone derivatives). The ne compound, in another etttbodittteot, is; ed from one of the compounds provided in Table t, beiow. to one embodiment, the hobic ve is squaiame. .................................................................................................................................................................................................1 Tobie i. Terpene hydrophobte additives amenabie for me to the itioos of the present invention.
Name Formula Isoptene Lin'tonene humulene famasene \ \ \ Table 1. Terperie hydrophobic additives amenable for use iii the compositions of the present invention.
Name Formula squalene Squa l an6 WWW {90162} As ed above, the composition provided herein in one embodiment, comprises a prostacyclin compound and one or more i’EGylared lipids. in a er ei'nljodii'nenn the composition comprises a hydrophobic additive, as described above. in one embodiment, the composition provided herein comprises a prostaeyelin compound of one of Formula (De (la), (1b)., (lo) (Id), flax"), (lb’), (le’l, {RV}, fie"), ab"), Ge"), Gd"), (H), (Ha), (lib), (lie) {lid}, or (ill), a hydrophobic additive and a PEGylared lipid. in a r embodiment the hydrophobic additive comprises a. hydrocarbon eg a. terpene compound. {$3163} in one embodiment, the trepi‘ostinil derivative composition provided herein includes the components ed in 'l‘alile C, below.
Table C. Re regenerative Tre rostlnilCom nsi Composition Trerostioil eom-oond l—lvdro lrob Amphiphilie Additiona . ie additive lit Wagent E liggili Formula (II) where R1 is O, "lo-3e, 1ea} Li REC 'latedW li .idp ri/a R2 18 linear (26"(—=i6. . \ a Formula (ll) where R1 is O, Toipene ’ted, lipid, DOPC Ry. is linear (7'ow Formula (ll) where R, is O, Squalane‘ ‘ a " . (,hol _ l. i...(_:2l<:I n a/ .12 is linear (jg-(:35 Formula (H) where R] is 0, rie osreeeozk R2 is linear C63", Ema Formula (H) where R1 is O. r i i 7‘ . . ‘ ‘ ‘ v' E R2 is linear Clfl"(:16. . ae. Fl. {:ylal d lipid'3 'e , n a/ Formula (ll) where R1 i3 0, .
.Teipene 0 j ~.
, PEGyla‘ted lipid,,. A. DDPC1 Ry. is linear {:ow ......................................................................................................................................................................................................................................
Table (3. Re ari’ve Tire rostlaniiCom ositions. _ ., .. gig—digs: Wmin himH‘r lob Composuion 'Frew'ostiiiileomound . i. gmAdrEiriona.. ll: Wfigifllt E hail": Fm???" (H) \where R is 0" Squalane Chol~PEG2k n/a R2 is linear (mg—(.45 Forrirula (ll) Where R1 is O ’ . i , . . Squrlane, 2" > DrPr—FS F P {312'k a n a R2 1311mm CW0") Formula (Ill) where R, is 0, R2 is linear (Tim—(315 Formula (H) where R; is O, Terpene Pilil’jylared lipid R2 is linear C; 24:15, Formula (H) where R1 is O, Squalane Ch"1 ) '7 ..1 "Eek‘4‘) R215 linear (3:24:16 Formula (ll) where R1 is 0, Squ rlane" 2" > DSPF PFC;or, 2—4;."2k R2 is linear C12~Cis a (ill) Where R] is 0, R2 is branched (354316 Formula (H) where R] is 0, PEGylared lipid R2 is ed Cngm Formula (H) where R1 is O, 1 3 *3 ‘1") 7 ..E EASIER R2 18 bTflHChfid(_15—C15 Formula (ll) where R1 is O, DSPE PEQJg‘u. "‘7, R3 is branched {Te—Cu; Formula (ll) where R] is N, R2 is linear (76-1335 Formula (11) where R] is N, PEGylared lipid Rg is linear C6416 Formula (II) where R1 is N, ‘ ' ( hoif LPE ‘Qk(1 R2 is linear (Lg—Cm Formula (lltwlrere R1 is N, DSPE—PEGZR R1 is linear (as-Cm Formula (ill) where R1 is N, R2 is linear C5~C§0 Formula (II) where R; is N, PEGylared lipid DOFC Rg is linear (364.ng Formula (II) where R1 is N, fixqualana (Tirol l lfiuk3 3 V) , n a/ R2 is linear C613") Formula (H) :whfiere R] 15 N’ Squalane DSPE—FEGZR nl’a Rg is linear C's—(Tm lllllltilll The present invention also provides methods for treating a t in need thereof, with one or" the prostacyclin compounds or compositions described herein. it is understood that re "erence to a prostacyelin compound in a treatment method includes the use of a pharmaceutically acceptable salt of the compound. rly, administration of a prostacyclin composition comprising a prostacyclin compound includes the use of a pharntiaceutically acceptable salt in the composition. {($165} in one aspect, a method for treating pulmonary hypertension (Pl-l) is provided.
The method comprises, in one embodiment, stration of a compound, pharmaceutically acceptable salt thereof, or composition. provided herein to a t in need thereof. stration, in. one embodiment, is pulmonary administration and can be, for example, with a. d dose inhaler (MDl), dry powder inhaled (OH), or a nehulizer. The World Health Organization (Wl-lO) has classified PH into live groups Wl-lO Group E Pl—l includes pulmonary al ension (PAH), idiopathic ary arterial hypertension (lPAH), familial pulmonary arterial ension (Fl’Al—l}, and pulmonary arterial hypertension associated with other diseases (AFAH). For example, pulmonary arterial hypertension associated witl'r collagen vascular disease (rag, scleroderma), congenital shunts between, the systemic and pulmonary circulation, portal hypertension and/or HlV infection are included in group i Pit. The methods provided herein, in one embodiment, are ed to treat a WHO Group l PH patient in need thereof, for example a PAH patient, an ll’AH patient, a Fl’AH t or an APAH patient. WHO Group ll PH includes pulmonary hypertension associated with left heart e, e.g.. atrial or ventricular disease, or valvular disease (rag, rnitral stenosis). The methods provided herein, in one embodiment, are provided to treat a WHO Group ll patient in need thereof. WHO group ill pulmonary hypertension is terized as pulmonary hypertension associated with lung diseases, 8.3;, chronic obstructive pulmonary disease (COPD), interstitial. lung disease OLD), and/or hypoxemia, The s provided herein, in one embodiment, are provided to treat a WHO Group lll patient in need f.
Wit-10 Group 1‘] pulmonaw hypertension is pulmonary hypertension. due to chronic otic and/or em‘bolic disease. Group lV Pl-l is also referred to as chronic thromboemholic pulmonary hypertension. Group lV PH patients experience blocked or narrowed blood vessels due to blood clots. The methods provided herein, in one ment, are provided to treat a WHO Group lV patient in need thereof. WHO categorizes Group V PH as the "miscellaneous" category, and includes Pll caused by blood disorders (6.3:, polycythemia vera, essential thrombocythemia), systemic disorders (eg, sarcoidosis, vasculitis) and/or metabolic disorders (6.5;, d disease, glycogen storage disease). The methods provided herein, in one embodiment, are provided to treat a WHO Group V patient in need thereof. d} The methods provided herein can be used to treat a WHO Group i , pulmonary arterial hypertension or PAH), Group ii, Group ili, Group 1V or Group V PH patient. In one embodiment ofthe method for treating Pi-i, a method of treating pulmonary ai hypertension (PAH) is provided. in another embodiment, a method for treating chronic thromboembolic pulmonary hypertension patient is provided, in one embodiment, the method for treating Piri tag, PAi-l) comprises administering an effective amount or" one of the compounds described herein via a pulmonary (inhalation, egg, via an MDi or nehuiizer or dry powder inhaler), a subcutaneous, oral, nasal or an intravenous route of administration, to a patient in need thereof. in one ment, administration is via inhalation via an l or nebuliaer, in one embodiment, where compound delivery is via a nebulizer, the compound is provided to the patient as a ition, for example, as a. lipid nanoparticle composition, as described, above. ititlldfl in another aspect of the invention, a method for treating portopulmonary hypertension (PPR) is provided. in one embodiment, the method comprises administering an el’i‘ective amount of one of the compounds described herein (or a pharmaceutically acceptable salt thereof), via a pulmonary (inhalation), a subcutaneous, oral, nasal or an intravenous route of administration, to a patient in need thereof. In one embodiment, administration is via inhalation via an MDE or nebulizer. in one ment, where nd delivery is via a nebniizer, the compound is provided to the patient as a. composition, for example, as a lipid nanoparticie composition, as described above. {@168} Methods for administering stinii and analogs f for treatment of ary hypertension have been described in US. Patent Nos. 5,153,222; 6,521,212; 7,544,713 and US. Patent Application Publication No. 2i§i€l¢iii§76083, the disclosure of each are incorporated by nce in their entireties for aii purposes. {(913169} The method for treating a patient. for PM (sag, PAH) or PPH comprises, in. one embodiment, administering to a patient in need thereof, one ofthe prostacyciin compounds or compositions provided , for example, a compound of Formula (1), (la), (1b), (lo), (id), (13’), {513’}, (563’): (if): (1%"), (139"), {10"}, {51’1"}, iii}, ("30; (115)» (110) (Ed), 01' (fill), a pharmaceutically acceptable salt thereof, or a. composition comprising a compound of Formula (i), (la), (1b), (1c), (id), (ia’), (ib’), (10’), (id’), Ga"), , tic"), tilt"), (ll), (ila), (lib), (llc) (lid), or (Ill), or a pharmaceutically acceptable salt thereof. in one ment, the method. for treating PH (tag, PAH) or PPi-i comprises administering to a patient in need thereof, one of the cyclin compounds or compositions provided herein, for example, a compound of Formula (1), (la), (Eh), (lo), (ld), (ia’), (133’), (ic’), (Id’), Ga"), ab"), tic"), (ld’l), (II), (Ha), (lib), (tic) (lid), or (ill), or a composition sing a compound of Formula. (I), (la), (1h), (1c), (id), (Ia’), (113’), Go"), (id’), Ga"), (ib"), Ge"), Gd"), (11), (Ha), (lib), (11c) (11d), or (iii), or a composition. comprising a denterated nd of Formula (It), (la), (lb), (lc), (id), (ia’), (iii), (ic’), (id’), (12%"), (133"), tic"), add"), (ll), (Ha), (lib), (lie) (lid), or (ill). Routes of administration to the patient include pulmonary (iitilialation), subcutaneous, oral, nasal and intravenous. in one embodiment, administration of a compound of Formula (I), (la), (Eb), (lo), (Id), (ia’), (1‘0"), (ic’), (id’), Ga"), Hid"), tic"), {ld’l}, (ll), (ila), (11b), (lie) (ltd), or {ill}, or a pharmaceuticaliy acceptable salt thereof, is via inhalation via. an M91 or nebulizer. in one embodiment, where compound delivery is via a nebuiizer, the compound is provided to the patient as a composition, for example, as a lipid nanoparticle composition, as bed above. {@173} in one embodiment, the method for treating PH, PAH or FPH comprises stering to a patient in need thereof, an effective amount of the prostacyclin compound or prostacyclin composition described herein. In a turther embodiment, the compound, or a phannaceutically acceptable salt of the compound, is administered, to the patient via a pulmonary (inhalation), a aneous, oral, nasal or an intravenous route of administration. in a. r embodiment, administration is via inhalation and the cyclin compound or ition is administered with a nehulizer, dry powder inhaler, or MDl, in even a further embodiment the prostacyclin composition or composition comprises a prostacyciin compound of Formula (1), (la), (jib), (to), {Ed}, (ia’), (Ital), (Set), (id’), Ga"), rib"), Clo"), (ld’l), (11), (Ha), (11h), (11c) (Kid), or (ill), or a deuterated version thereof or a pharmaceuticaily acceptable salt of the compound {flfil’ii} In one ment, administration of an effective amount of a prostacyciin compound or composition of the present invention for the treatment of PH, FAH or PFH via inhalation, oral, nasal, aneous or intravenous administration s in a decreased number of side effects, or a reduced severity of one or more side effects (also referred to herein as "adverse eventS"), compared to the administration of an effective amount of treprostinil, when an effective amount of treprostinil is administered via inhalation, oral, nasal, subcutaneous, or enous administration. For example, in one embodiment, a PR, PAH or PPH patient experiences a reduced severity and/or frequency in cough or a reduced cough response when administered a cylin compound, or composition of the invention via inhalation (e.g., nehulization, dry powder inhaler, or via a metered dose inhaler), compared to the severity and/or fienuency of cough or cough response elicited by inhalation administration of treprostinil to the patient. {60.172} In another embodiment, oral, nasal, intravenous, suhcutaneous or inhalation administration of an effective amount of the prostacyclin compound or composition of the invention, compared to oral, nasal, subcutaneous, intravenous or inhalation administration of treprostinil, results in a reduced severity of one or more of the following adverse events, or a decreased occurrence of one or more of the following adverse events: headache, throat irritation/pliaiyngolaryngeal pain, nausea, flushing and/or e. {@173} in another embodiment, oral, nasal, intravenous, subcutaneous or inhalation stration of an effective amount of the prostacyclin compound or ition of the invention, for the treatment of PH, PAH or PPH, compared to oral, nasal, subcutaneous, intravenous or inhalation stration of treprostinil, results in a reduced severity of a systemic adverse events, or a decreased ence of a systemic e event. {@1774} Without wishing to be bound lay theory, it is believed that the improved e event profile of the prostacylin compounds and compositions of the invention exhibited patients, as compared to treprostinil, results in improved ance of the patients. {@175} in one embodiment, the cyclin compounds and compositions of the present invention are administered on a less frequent hasis, as ed to tly approved. therapies for PH, PAH (cg, Tywasotih, Remodulintts) or PPH, while still achieving a suhstantially equivalent or better therapeutic response, Routes of administration to the patient include pulmonary (inhalation), subcutaneous, oral, nasal and intravenous. The therapeutic response of the patient, in one embodiment, is a reduction in. the ary vascular resistance index (PVRI) from pretreatment value, a reduction in mean pulmonary artery re from pretreatment value, an increase in the hypoxernia score from pretreatment value, a decrease in the oxygenation index from pretreatment values, improved right heart fimction, as compared, to pretreatment or improved exercise capacity (ago, as measured by the six—minute wailr test) compared to pretreatment. The therapeutic response, in one embodiment, is an improvement of at least lG%, at least 2il%, at least 30%, at least 49% or at least 50%, as compared to pretreatment values. ln another embodiment, the therapeutic response is an improvement of about 16% to about "ISO/ii, about 10% to about 623%, about lift/i; to about 50%, about 10% to about 49%, about "3% to about 30%, about 13% to about 20%, about 26% to about 70%, about 28% to about (it???) or about lll'il/is to about 59%, as corn rared to iiretreatinent levels. {09.176} Without wishing to be bound by theory, the less ffeqnent administration. ofthe compounds and compositions of the invention allows for ed patient compliance, as compared to the compliance of patients being administered a. different PH, PAH or FFH treatment tag, treprostinil ‘l‘yvasotiIRD, Remodulin-(RD). {llfil'77} in one embodiment, a composition or compound of the present invention is administered Via a metered dose inhaler (MDl) to a patient in need of PH, PAH or PPH treatment. The ition or compound, in one embodiment, is delivered via a Mill by the use of a propellant, for e, a chlorowtluorocarbon (CFC) or a fluorocarbon. in one embodiment, Where delivery is via an MDl, the compound is not formulated as a lipid, rticle ition, and instead, is suspended or dissolved directly in a propellant solution. The patient, in one embodiment, is administered the prostacyclin compound or composition of the ion once daily, twice daily or three times daily. in one e 'bodiment, the administration is with food. in one embodiment, each administration cornprises l to 5. doses {puffs} from an Milli, for example l dose (1 puff), 2 dose (2 puffs), 3 doses (3 puffs), 4 doses {4 putts) or 5 doses (5 . The MDE, in one embodiment, is small and transportable. by the patient. {@1783 In r embodiment, the prostacyclin nd or prostacyclin composition is administered via a nebulizer to a patient in need of PH, PAH or PPH treatment. The administration occurs in one embodiment, once daily, twice daily, three times daily or once every other day.
} In. one embodiment, a composition. or compound ot‘ the present invention is stered via a dry powder inhaler (DPI) to a patient in need of PH, PAH or PPH treatment. The patient, in one embodiment, is administered the prostacyclin compound or composition of the ion once daily, twice daily or three times daily. in one embodiment, the administration is with food. in one embodiment, each administration comprises 1 to 5 doses (paths) from a DPl, for example 1 dose (l pull), 2 dose (2 putts), 3 doses (3 puffs), 4 .5}. U: doses (4 paid} or 5 doses (5 puffs). The BM, in one embodiment, is srnaii and transportable by the patient.
{MEWS in r embodiment, the prostaoyeiin compound, administered to a t in need thereof Via a. ary route by the PH, PAH or PAH treatment methods bed herein provides a greater pulmonary elimination haitdife (ti/2‘) of the prostaeyeiin compound or its treprostinii metabolite, ed to the puimonary eiimination half—life (tug) of treprostinil, when tieprostinil is administered via a puimonary route (eg, by nehniiaation, dry powder inhaler, or a metered dose inhaier) to the patient in need of PH, FAH or PPH treatment. {@181} In another embodiment, the prostaeyciin compound administered to a patient in need thereof, Via the PH, PAH or PPH treatment methods described herein es a greater systemic half—life (tug) of the eyeiin compound or its stinii rnetahoiite, compared, to the systemic elimination trait—fife (tn) of treprostinii, when treprostinii is administered to the patient. in a finther embodiment, administration of the prostaeyeiin compound and treprosti nil comprises orai, nasai, subcutaneous or intravenous administration, {@182} in another embodiment, the prostacyciin compound administered to a patient in need of PH, PAH or PPH treatment provides a greater mean pulmonary Cum and/or lower piasma CHM of stinil for the patient, compared to the respective puimonary or piasrna Cum oftreprostinii, when treprostinii is administered to the patient. in a r embodiment, administration of the prostacyeiin compound and stinii comprises intravenous administration. {@183} in r embodiment, the prostaeyciin compound administered to a patient in need of PH, PAH or PPH treatment provides a greater mean pithnonary or piasma area under the curve (AUCM) of the prostaeyeiin compound or its treprostinit metabolite, compared to the mean pulmonary or piasma area under the curve 9"]ng of treprostinii, when treprostinii is administered to the patient. in yet another embodiment, the prostaeyciin. compound stered to a patient in need thereof provides a greate pulmonary or piasrna time to peak concentration (tmx) of treprostinii, compared to the puhnonaiy or piasrna time to peak concentration. (tmax) of stinii, when treprostinii is administered to the patient, {$3184} in another aspect of the invention, a method of treating a e, disorder or condition other than PH, PAH or E’P’H is provided. US. Patent No. 5,i53,222, orated by reterence herein in its entirety, describes use of treprostinii for treatment of pulmonary hypertension. ’l‘reprostinil is approved for the intravenous as well as subcutaneous route, the latter avoiding potential septic events associated with continuous intravenous catheters, US Patent Nos. 6,52l,2l2 and 6,756,033, each incorporated byre‘errence herein in their entireties, describe administration of treprostinil by inhalation for ent of pulmonary hypertension, peripheral vascular disease and other diseases and conditions. US Patent No. 6,803,386, incorporated by 1cfeience herein in its entirety discloses administration of treprostinil for treating cancer such lung, liver, brain, pancreatic, kidney, prostate, , colon and heath eck cancer. US. Patent Application Publication No. EGGS/Glofiilll, incorporated by nce herein in its entirety, discloses treprostinil treatment of nic lesions. US. Patent No. 7,199,157, incorporated by reference herein, in its entirety, discloses that stinil ent es kidney tirnctions. US. Patent No. 7,879,909, incorporated byre"errenc"hrein in its entirety discloses treprostinil treatment of neuropathic foot ulcers. US. Patent Application Publication No. 2908/028G98ti, incorporated by reference herein in its entirety, ses treprostinil treatment of pulmonary fibrosis, interstitial lung disease with ostinil and asthma U.S. Patent No. 6,{)54,486, incorporated by reterenc herein in its entirety, discloses treatment of peripheral vascular disease with treprostinil. US patent application publication no. 2099/(Hl36465, incorporated by reference herein in its entirety, discloses combination therapies comprising treprostinil. US, Patent Application ation No 0200449 disclosesdelivery of treprostinil usinO a metered dose inhaler US Patent Nos 7,4l7(370, 7,3849,78and 7,544,7l3 as well as US Patent Application Publication Nos. 2907/0078095, 2095/028290l, and 2008/0249l67, each incorporated by reference h2rein in their entiretit.5-, describe oral ations of treprostinil and other prostacyclin analogs as well as their use for treatment of a variety of conditions. US Patent Application Publication No. 20l2f00943tl7, incorporated by reference herein, discloses the use of orally stered treprostinil for treatment ot‘ Raynaud’s phenomenon, ic sclerosis and digital ischernic lesions. Each of the indications recited above can be treated with the COi’li‘l‘pOUIlflS and corn positions provided herein, Routes of atllflitltll.8l7éill01fl to a patient in need of treatment e pulmonary (inhalation), subcutaneous, oral, nasal and intravenous.
} Additionally, the following reterenres are incorporated by relciente in their entireties for all purposes for practicing the embodiments of the present invention: J. Org.
Chem. 2004, 69, l890—l902, Drug of the Future, 299i, 26(4), 364—374, US. Patent Nos. ,l53,222, 6,954,486, 6,521,212, 6,756,933, 6,803,386, and 7,l99,157, US. Patent Application ation Nos. 2005/0165} ll, EGGS/6282.963, 2%08/0200449, 2008/3280986, 2909/0ll36465 and 2fil2x’0lll0159. {$01853 in one embodiment, a method is provided, for treating a patient in need thereof for congestive heart failure, peripheral vascular disease, , severe intermittent clandication, immunosuppression, proliferative diseases, tag, cancer such as lung, liver, hrain, pancreatic, kidney, prostate, breast, colon and eck cancer, ischemic lesions, athic foot ulcers, and pulmonary fibrosis, kidney on and/or interstitial lung disease. In one embodiment, the method comprises administering aneffective amount of one ofthe prostaeyclin compounds or compositions provided herein, for example, a compound of lionnula (I), (la), (lb), (lie), (Id), (la’), (in), (lc’l, {ld’}, , (It?) (10"), Old"), (ll), (ll-a), (llb), (llc) (lld), or (Ill), or a deuterated version thereof, or a composition comprising a compound of a (I), (la), (lb), (lc), (id), (la’), (Int), (le’), (ld’), (la’l), ("lb"), (10"), (ldll), (ll), (lla), (lib), (llc) (lid), or {lll}, or a composition comprising a deuterated componnd of Formula (1), (la), (lb), (lo), (id), (la’), {Ib’}, (lc’), (ld’), Ga"), flit"), Go"), Gd"), (ll), (Ila), (I lb), (llc) (Ild), or (Ill) to the patient. Administration, in one embodiment, is via inhalation (eg, with a nebnliaer or metered dose inhaler), subcutaneous, oral, nasal or intravenous. in some embodiments, the centical formulation may comprise one or more active ingredients in addition to treprostinil monohydrate, dfl in one embodiment, a method is provided tor treating and/or preventing interstitial lung disease (gag, pulmonary fibrosis) or asthma, or a condition associated with interstitial lung disease or . in a patient in need of such ent. in a further embodiment, the method ses administering to the patient an effective amount of one of the prostacyclin nds or compositions provided herein, for example, a compound of Formula (I), (la), (lb), (3c), (Id), (Ia’), (lh’), ('lc’), {ld’i}, Ga"), (lif’), (lc’i’), (ld’i’), (ll), (ll-a), (llh), (llc) (lid), or (Hit), or a deuterated version thereof, or a composition comprising a compound of Formula (I), (la), (lb), (Io), (ld), Ga"), (133’), {Ic’}, (ld’), Ga"), db"), tile"), Gd"), (ll), (Ila), (lib), (IIc) (lid), or (lit), or a composition comprising a denterated compound of Formula (i), (la), (lb), (3c), (ld), (la’), {In}, (lc’), (ld’), Ga"), fin"), Clo"), Gd"), (ll), (Ila), (lIb), (lie) (lId), or (Ill). ’l'he composition or compound, in one embodiment, is red via a MDI by the use of a propellant, for example, a chloron fluorocarbon (CFC) or a fluorocarbon, The patient, in one embodiment, is administered the prostacyclin compound or composition of the invention once daily, twice daily or three times daily. in one embodiment, the administration is with food. in one embodiment, each administration comprises i to 5 doses (puffs) from an MDl, for example l dose (l puff}, 2 dose (2 putts), 3 doses (3 puffs), 4 doses (4 puffs) or 5 doses (5 pulls). The l‘viiitl, in one. embodiment, is small and transportable liy the patient. in another embodiment, administration is oral, nasal, subcutaneous or intravenous. in another embodiment, oral, nasal, intravenous, aneous or tion administration or" the effective amount of the prostaejyrclin compound or composition of the ion, for the treatment of interstitial lung e (e.g., pulmonary fibrosis) or asthma, or a condition associated with interstitial lung disease or asthma, compared to oral, nasal, subcutaneous, intravenous or inhalation stration of treprostinil, results in a *educed severity ot‘ a ic adverse events, or a. decreased occurrence of a systemic adverse event.
{MISS} in one embodiment, a method for treating an ischemic disease or ion, such as scleroderma, including systemic sclerosis, or Raynaud’s Phenomenon in a patient in need of such ent is provided. in a further embodiment, the method comprises administering an effective amount of one of the prostacyciin compounds or compositions provided herein, for e, a compound of Formula (i), (la), (lb), (ic), (id), (la’), (lb’), (lc’), (id’), Ga"), (ib"), ac"), Gd"), (ii), (iia), (lib), (iic) (lid), or (iii), or a deutera‘ted version thereof, or a composition comprising a compound of Formula (i), (la), (ib), (to), (id), (ia’), (ib’), (lc’), (id’), (ia"), (ib"), Ge"), Gd"), (ll), (Ha), (lib), (lie) (lid), or (ill), or a composition comprising a deuterated compound of Formula (1), (la), (Eb), (ic), (id), (:ia’), (lb’), (id), (id’), fiat"), (ib"), (ic"), Gd"), (ll), (ila), (lib), (ilc) (lid), or (iii), to the t.
Administration, in one embodiment, is via inhalation (cg, with a nebulizer or metered dose inhaler), oral, nasal subcutaneous or intravenous stration. in another embodiment, oral, nasal, intravenous, subcutaneous or inhalation adn'iinisti‘ation of an et‘tective amount of the prostacyclin compound or composition of the invention, for the treatment of ischemie disease or condition, such as scleroderma, including systemic sclerosis, or Raynaud’s Phenomenon, compared to oral, nasal, subcutaneous, intravenous or inhalation administration of treprostinii, results in a reduced severity ot~ a systemic e events, or a sed occurrence of a systemic adverse event.
} The prostacyclin nds or compositions provided herein, for example, a compound of Formula (1), (la), (lb), (lo), (Id), (ia’), {ib’}, (ic’), (id’), Ga"), (ib"), tie"), (ld’l’), (ii), (iia), (iih), (lie) (lid), or (ill), or a deuterated version thereof, or a composition comprising a compound of Formula (i), (la), (lb), tie), (id), (ia’), (ib’), (ic’), (id’), Ga"), (illi’l), tic"), (ld’l), (ii), (an, (lib), (lie) (lid), or (iii), or a composition comprising a deuterated compound of Formula (l), (la), (lb), (file), (id), (lat), (lbl), (lc’i), (ld’), Ga"), filo"), tic"), Gd"), (ll), (Ha), (lib), (llc) (lid), or (ill), in one embodiment, are used for treating, a patient for a digital ischemic lesion, such as a digital ulcer or a necrotic lesion, or for ameliorating a syn'iptom or lunctional deficit and/or reducing the number of symptoms and/or functional deficit(s} ated with a digital iscliemic lesion. The term "digital ischemic lesion" refers to a. lesion on a digit, z‘..,e a toe or a finger, of a subiect, such as a human being. in one embodiment, the digital. ischemic lesion may be caused by or associated with an ischemic disease or ion, such as seleroderma, including systemic sclerosis, or Raynaud’s Phenomenon. The symptom that may be ameliorated and/or reduced may be, for example, a pain ated with a digital ischemic ulcer and/or scleroderma. in some embodiments, administering a prostacyelin nd or composition provided herein, upon administration to a patient in need of treatment, provides amelioration or reduction of one or more functional deficits associated with a digital ischemic lesion. For example, in one embodiment, the cyclin compound or composition provided herein ameliorates or s a hand function deficit, 116., provides an improvement in the hand function of the d patient. Administration, in one embodiment, is via inhalation (eg, with a nebulizer or metered dose inhaler), oral, nasal, subcutaneous or intravenous administration. in another embodiment, oral, nasal ii'itravenous, subcutaneous or inhalation administration of an effective amount of the prostacyclin compound or composition of the invention, for the ent of l isehemie lesions, compared to oral, nasal, subcutaneous, intravenous or inhalation administration of treprostinil, results in a reduced ty of a systemic adverse events, or a sed occurrence of a systemic adverse event. {llllllllll in one embodiment, a. method for improving kidney timction or treating symptoms associated with kidney malfunction or e in a patient in need thereof is provided. in a. further embodiment, the method comprises administering to a subject in need thereof an effective amount of a prostacyclin compound, or ition ed herein, for example, a. nd of a (1), (la), (lb), (in), (Ed), (la‘), (lh’), tie"), Gd"), Ga"), (lb°"’), tile"), Qld"), (ll), (Ila), (llh), (llc) {lld}, or (Ill), or a deuterated version thereof, or a composition comprising a compound of Formula {1), (la), (lb), (lo), (ld), (la’), (lh’), (lc’), (ld’), Ga"), (1‘0"), ac"), Gd"), (ll), (lla), (lib), (lie) (lid), or (ill), or a composition comprising a deuterated compound of Formula (l), (la), (lb), (lo), (id), (la’), (lb‘), (le’), (ld‘), (la-1"), (1‘0"), Ge"), Gd"), (ll), (lla), (lib), (llc) (lid), or (ill), to the patient. Specific symptoms associated with reduced kidney functions include, for example, abnormally low urination, increased l‘leOCl levels of creatinine and urea nitrogen, protein leakage in urine and/or pain. Administration, in one embodiment, is via. inhalation (tag, with a nebulizer or metered dose inhaler), oral, nasal, subcutaneous or intravenous administration. in another ment, oral, nasal, enous, subcutaneous or tion administration of an effective amount of the prostacyclin compound or composition of the invention, for improvement of kidney functions or amelioration of symptoms associated with kidney ction or failure, ed to oral, nasal, intravenous, subcutaneous or inhalation administration oftreprostinil, results in a reduced severity of a systemic adverse events, or a decreased occurrence of a systemic adverse event, {(36191} in one ment, a method of treating a vascular disease including congestive heart failure comprises is ed. The method, in one embodiment, comprises administering to a patient in need thereof, a prostacyelin compound or composition provided herein, for example, a compound of Formula (l), (la), (lb), (lc), (l ), tila’), (lh’), (lei), (ldl), Ga"), tilt"), ( 1c"), Gd"), (ll), (Ila), (lib), (lie) (lid), or (ill), or a deuterated version thereof, or a composition comprising a compound of Formula {i}, (la), (lb), (lc), (id), (la’), tlh’}, (lc’), (id’), Ga"), (KW), tic"), Gd"), (ll), (Ila), (llh), (lie) (lld), or (ill), or a composition comprising, a deuterated compound of Formula (l), (la), (lh), (1c), (id), (Ea’), (lh’), (lc’), (ld’), Ga"), lib"), (lcl’), Cid"), (ll), (Ha), (lib), (lie) (lid), or (ill). Administration, in one embodiment, is via inhalation tag, with a nehulizer or metered dose inhaler), subcutaneous, oral, nasal or intravenous administration. {lltlllfll in one embodiment, a method for treating a peripheral vascular disease, including> eral arterial occlusive disease and, intermittent claudication is ed. in one ment, the method comprises stering to a. patient in need thereof a prostacyclin nd or composition provided herein, for example, a compound of a (I), (la), (lb), (lc), (1d), (la’), (l‘o’), (lc’), {ld’}, Ga"), Sb"), Ge"), lid"), (ll), (Ila), , (llc) (lld), or (Ill), or a deuterated version thereof, or a composition comprising a compound of Formula (I), (la), (lb), (lo), (id), (la’), (In), {le’}, (id), (121"), on"), (loll), (ld7’), (ll), (lla), (lib), (lie) (lld), or (ill), or a composition comprising a denterated compound of Formula (1), (la), (lli), (lc), (Id), (33,), {lla’}, {lc’}, (ld’), Ga"), (15"), ac"), Gd"), (ll), (Ila), (11h), (llc) (lid), or (Ill), In addition to the cyclin compounds and compositions provided herein, other phannacologieaily active suhstances may be present in the formulations of the present invention which are known to be useful for treating peripheral vascular disease. For example, the compounds of the invention may be present in combination with trental, a substance known to increase red blood cell deformability.
Administration, in one embodiment, is via inhalation (age, with a nebulizer or metered dose inhaler), subcutaneous, oral, nasal or intravenous administration. {@193} in one embodiment, a method for treating and/or preventing neuropathic diabetic foot ulcer is provided. in one embodiment, the method comprises administering to a patient in need thereof, a prostacyclin compound or composition provided , for e, a compound of Formula (i), (Ea), (lb), (Sc), (id), {ia’}, (ib’), (lc’), (id’), Ga"), Gib"), tic"), (Id’"), (11), (Ha), (lib), tile) (lid), or (iii), or a ated version thereof, or a ition comprising a nd of Formula (1), (la), (1b), (In), (Id), (ia’), Sb"), (1c"), (ld’), (121"), ab"), (10"), Gd"), (ii), (Ha), (lib), (tic) (Sid), or (iii), or a composition comprising a deuterated compound of a (I), (la), (its), (1c), (id), (121’), (lb’), (ic’), tid’), Ga"), (1%)"), (10"), Cid"), (it), (Ha), (lib), (tic) (iid), or (iii). Administration, in one embodiment, is via inhalation (eg, with a nebulizer or metered dose inhaler), aneous, oral, nasal or intravenous administration. in addition to the prostacyclin compounds and compositions provided herein, other pharmacologically active Substances may be present in the torinulations of the present invention which are known to be usetui for treating and/or preventing foot ulcers in ts with diabetic neuropatliy. For example, the compounds of the invention may be present in combination with analgesics to treat pain, ng s, vasodilator medications, and topical or oral antibiotics. {tittfid} in one ment, administration of an effective amount of a prostacyclin compound or composition of the present invention for the treatment of the s diseases and tions described throughout, by inhalation, subcutaneous, oral, nasal or intravenous administration, results in a decreased number of side effects, or a reduced severity of one or more side effects (also referred to herein as "adverse events"), compared to the administration of an effective amount of treprostinil, when an effective amount of treprostinil is administered by inhalation, subcutaneous, oral, nasal or intravenous adntiinistration. For example, in one embodiment, a patient treated by the methods provided herein experiences a reduced severity and/or trequency in cough or a reduced cough response wheiti administered a prostaeylin compound or composition of the invention via inhalation {ego nehulization, dry powder inhaler, or via a metered dose inhaler), compared to the severity and/or ncy of cough or cough response elicited by inhalation administration of treprostinil to the patient. ititl‘iiififi in r embodiment, the prostacyelin compound administered to a patient in need of treatment provides a greater mean pulmonary Cmax and/or lower plasma Cm,u of treprostinil for the patient, compared to the respective pulmonary or plasma Cmax of treprostinii, when treprostinii is administered to the patient. in a furthe embodiment, administration of the prostacyclin compound and treprostinil ses intravenous admini stration. {thigh} in another embodiment, the prostacyclin compound stered to a t in need of treatment provides a greater mean puimonary or plasma area under the curve (AUCm) of the cyelin compound or its treprostinii metabolite, compared to the ntiean pulmonary or plasma area under the curve {AUG-,4) of treprostinih when treprostinil is administered to the patient. in yet another embodiment the prostacyciin compound administered to a patient in need thereof provides a greater pulmonary or plasma time to pealt concentration (tmax) of treprostinil, compared to the pulmonary or plasma time to peak tration (tmfi) of treprostinii, when treprostinil is administered to the t. {801.5971 in one embodiment, a prostacyclin compound or composition provided herein, for example, a. nd of Formula {1), (la), (lb), (lo), (id), (ia’), (ib’), Ge"), (id’), Ga"), tilt"), tic"), flirt"), (ll), (Ha), filth), (tic) (lid), or (ill), or a deuterated version thereof, or a composition comprising a compound of Formula. (i), (la), (lb), tic)? (id), (ia’), (ih’), (ic’), (ld’), Ga"), flit"), tic"), Gd"), (ill), (lla), (lib), (tic) (lid), or (ill), or a deuterated version thereof, is administered in comhination with one or more additional active agents. in some embodiments, such one or more additional active agents can be also administered er with a prostacyclin compound or composition provided herein using a metered dose inhaler. in one embodiment, such one or more additional active agents can he administered separately, 226., prior to, or subsequent to, the prostacyclin compound, or ition provided. herein. Particular additional active agents that can be administered in combination with stinil may depend. on a particular disease or condition for treatment or prevention of which treprostinil is administer d in some cases, the additional active agent can he a cardiovascular agent. such as a cox~2 inhibitor, a rho idnase inhibitor, a m. charmel blocker, a phosphodiesterase inhibitor, an eiiai antagonist, or an antiplatelet agent. {69198} As ed above the prostacyciin compounds and compositions of the t ion can. he delivered to a patient in need thereot’via an oral, nasal, pulmonary, intravenous or subcutaneous route. With respect to the pulmonary route, the prostacyciin compounds and compositions) of the present invention may he used in any dosage dispensing device adapted for such administration. The device, in one embodiment, is constructed to ascertain optimum metering accuracy and compatibility of its constructive elen'ients, such as U: [N container, valve and actuator with the formulation and could be based on a mechanical pump system, eg, that of a metered—dose nehulizer, dry powder inhaler, solt mist inhaler, or a nehulizer. For example, pulmonary delivery devices include a jet nebulizer, electronic nehulizer, a. soft rni st inhaler, and a capsule—based dry powder r. lllllllllll Suitable propellants, 623;, for MDl delivery, may be selected among such gases as fluorocarbons, chlorotluoroearhons (CFCs), hydrocarbons, hydrofluoroalltane propellants (43.53., l€lIFA—134a and EPA—227), en and dinitrogen oxide or mixtures thereof. {90200} The inhalation delivery device can he a nehulizer, dry powder r, or a rnetered dose inhaler (Mill), or any other le tion delivery device known to one of ordinary skill in the art. The device can contain and he used to deliver a single dose of the prostacyclin ition or the device can contain and he used to deliver tnulti~doses of the composition of the present invention. lilllllllll A nebulizer type inhalation delivery device can contain the itions of the present invention as a solution, usually aqueous, or a suspension, For example, the prostaeyclin compound or composition can be suspended in saline and loaded into the inhalation delivery device. In generating the nehulized spray of the compositions for inhalation, the nehulizer delivery device may be driven ultrasonically, by compressed air, by other gases, electronically or ically (cg, Vibrating mesh or aperture plate). r Vibrating mesh nebulizers generate tine particle, low velocity l, and nehulize therapeutic solutions and suspensions at a faster rate than eon rentional jet or ultrasonic nebulizers.
Accordingly, the duration of treatment can be shortened with a Vibrating rnesh nehulize ", as compared to a jet or ultrasonic nehulizer. Vihrating rnesh nehulizers amenahle for use with the methods described herein include d e Philips Respironics l—Neh®, the Grnron MicroAir, the Neldar Aeronehifi), and the Pari eFlow® {09282} The zer may be portable and hand held in design, and may be equipped with a self contained electrical unit. The nehulizer device may comprise a nozzle that has two coincident outlet channels of defined aperture size through which the liquid formulation can be accelerated, This s in impaction ot‘ the two streams and atomization of the formulation. The ueh‘ulizer may use a mechanical actuator to force the liquid ation through a. orifice nozzle of d aperture } to produce an aerosol of the formulation for inhalation. in the design of single dose nebulizers, blister pachs containing single doses of the formulation may be employed. lillllfilliii in the present invention the nebulizer may be employed to ensure the sizing of particles is l for oning of the particle within, for example, the pulmonary membrane. llllthld} Upon nebulization, the nebulized composition (also referred to as "aerosolized composition") is in the form of aerosolized particles. The aerosolized composition can be characterized by the particle size of the aerosol, for example, by measuring the "mass median namic diameter" or "fine particle fraction" associated with the aerosolized ition. "Mass median namic diameter" or "MM AD" is normalized regarding the aerodynamic separation of aqua aerosol droplets and is ined by impactor measurementsa 6.3;, the Anderson Cascade lmpactor (AC1) or the Next Generation lmpaetor (NGI). The gas flow rate, in one embodiment, is 28 Liter per minute iior the ACl and l5 liter per minute for the NGl. {$3285} "Geometric standard deviation" or "(l-SD" is a measure of the spread of an aerodynamic particle size distribution. Low GSDs characterize a narrow droplet size distribution (_homogeneously sized. droplets), which is advantageous for targeting aerosol to the respiratory system. The average t size of the nehulized composition provided herein, in one embodiment is less than 5 pm or about l um to about 5 um, and has a. GSD in a range of l .0 to 2.2, or about ll) to about 2.2, or 1.5 to 2.2, or about 1.5 to about 22. {some} "Fine particle fraction" or "FPF," as used herein, refers to the fraction of the aerosol having a particle size less than 5 pm in diameter, as measured by cascade ion.
FPS?" is y expressed as a percentage. lilltlltlfl In one embodiment, the mass- median aerodynamic diameter (MMAD) of the nebulired. composition is about 1. pm to about 5 pm, or about l. pm. to about 4 pm, or about l. pm to about 3 pm or about l pm to about 2 pm, as measured by the on e lrnpactor (AC1) or Next Generation lmpactor (N61). in another embodiment, the MMAD of the nebulized ition is about 5 pm or less, about 4 out or less, about 3 pm or less, about 32 pm or less, or about 1 pm or less, as measured by cascade impaction, for example, by the AG or NGl. {($298} in one embodiment, the M MAD of the aerosol of the pharmaceutical composition is less than about 4.9 um, less than about 4.5 urn, less than about 4.3 pm? less than about 4.2 U: U: um, less than about 4.l uni, less than about 4.0 pm or less than about 3.5 um, as measured by cascade impaction. {002093 in one embodiment, the MMAD of the aerosol of the pharmaceutical composition is about l.0 pm to about 5.0 um, about 2.0 pm to about 4.5 um, about 2.5 pm to about 4.0 pm, about 3.0 pm to about 4.0 nm or about 3.5 not to about 4.5 pm, as n'ieasured by cascade impaction (6.32, by the ACI or NGI). {00210} In one embodiment, the EFF of the aerosoiized composition is greater than or equal to about 50%, as measured by the ACI or NGl, r than or etpial to about 60%, as measured by the ACl or 'NGl or greater than or equal to about 70%, as measured by the ACE or NGI. in. another embodiment, the FPF of the aerosolized composition is about 50% to about 809/6, or about 50% to about 70% or about 50% to about 60%, as measured by the NGI or ACl. {ddfilll in one embodiment, a metered dose inhalator (Milli) is employed as the inhalation delivery device for the compositions of the t invention. in a further embodiment, the prostacyclin compound is suspended in a propellant tag" hydroflourocarbon) prior to loading into the Mild. The basic structure of the MDI comprises a metering valve, an actuator and a container. A propellant is used to discharge the formulation from the device. The composition may consist of les of a defined size suspended in the pressurized lantts) liquid, or the composition can be in a on or sion of pressurized liquid lant(s). 'l‘he propellants used are primarily atmospheric ly hydroflourocarbons (HFCS) such as -a and 227. The device of the inhalation system may deliver a single dose via, eg a blister pack, or it may be nlulti dose in design. The pressurized metered dose inhalator of the inhalation system can be breath actuated to deliver an accurate dose of the lipid—containing formulation. To insure accuracy of dosing, the delivery of the formulation may be programmed via a microprocessor to occur at a certain point in the inhalation cycle. The MD} may be portable and hand held. {002.12} in one embodiment, a dry powder inhaler {DPS} is ed as the inhalation delivery device for the compositions of the present invention. in one embodiment, the Dl’l generates particles having an MMAD of from about 1 urn to about ll) pm, or about i um to about 9 pm, or about 1 urn to about 8 um, or about l urn to about 7 um, or about l urn to about 6 pm, or about 1 gun to about 5 urn, or about l um to about 4 pm. or about l um to about 3 urn, or about l urn to about '2 pm in diameter, as measured by the M31 or ACl. in another embodiment, the DPI generates a particles having an MMAD of from about l not to about ll} urn, or about 2 urn to about ll) um, or about 3 urn to about ll) um, or about 4 not to about ll) out. or about 5 urn to about ll) um, or about 6 urn to about ll) urn, or about 7 not to about l0 urn, or about 8 urn to about ll) um, or about 9 urn to about it) urn, as measured by the NGE or ACE. {@213} In one embodiment. the MMAD of the les generated by the DPl is about 1 urn or less, about 9 um or less, about 8. um or less. about 7 um or less, e um or less, 5 urn or less, about 4 out or less. about 3 am or less, about 2 urn or less, or about 1 um or less, as measured by the NGI or AC1. {($214} ln one embodiment. the MMAD of the particles generated by the DH is less than about 9.9 urn, less than about 9.5 urn, less than about 9.3 urn, less than about 9.2 urn. less than about 9.l urn, less than about 9.0 um, less than about 8.5 urn, less than about 8.3 urn, less than about 8.2 urn, less than about 8.,l um, less than about 8.0 urn, less than about 7.5 um, less than about 7.3 urn, less than about 7.2 urn, less than about "Ll urn. less than about 7.0 urn, less than about 6.5 urn, less than about 6.3 um, less than about 6.2 urn, less than about 6.1 urn, less than about 6.0 urn, less than about 5.5 urn, less- than about 5.3 urn, less than about 5.2 urn, less than about 5.l not, less than about 5.0 urn, less than about 4.5 urn, less than about 4.3 urn, less than about 4.2 urn, less than about All um, less than about 4.0 um or less than about 3.5 urn, as measured by the NGl or ACl. llEllZlil} in one embodiment. the MMAD of the les generated by the Dl’l is about ll) urn to about lbfl um. about 2.0 our to about 9.5 am, about 2.5 urn to about 9.0 urn, about 3.0 urn to about 9.6 urn, about 3.5 um to about 8.5 um or about 4.0 urn to about 8.0 urn. lilttllloi In one embodiment, the Fl’l" of the prostaeyclin particulate ition generated. by the DPI is greater than or equal to about 48%, as measured by the ACE or NGI, greater than or equal. to about 5094;, as measured by the ACE or NEE-l, r than or equal to about 60%, as measured by the ACl or NGIE, or r than or equal to about 79%, as measured by the ACE or NGl iln. another embodiment, the FF}? ol’ the aerosollzecl composition is about 49% to about 70%, or about 5 % to about 7 % or about 40% to about 60%, as measured, by the N'Gl or AC}.
EXAMPIES ltlll2l7} The present invention is further illustrated by reference to the following Examples. However, it should be noted that these Examples, like the embodiments described above, are illustrative and are not to be construed as restricting the scope of the invention in any way.
Exam in l _ S ‘nthesis of tree rostinil alk ‘l esters {Mimi 'l‘reprostinil compounds derivatized with alkyl groups at the carhoxylic acid moiety were prepared. Specifically, treprostinil was t erivatized at the carboxylic acid, moiety with Cg, C3, C4, {35, C5, Cg, (310, Cu, (315., and (fig alltyl chains (lie, R2 in Formula (A), below, is C2, C3, C4, C5, C5, C3, C39, C17,, Cu, or Cig alliyl) to make treprostinil alliyl esters of various ester chain lengths. 'l'reprostinil can be synthesized, for example, lay the methods sed in US. Patent Nos. 6,765,l l7 and 8,497,393. Synthesis of prostaglandin derivatives is described in US. Patent No. 4,668,814. The disclosures of US Patent Nos. 6,765,117; 8,497,393 and 4,668,814 are each incorporated by reference in their entireties for all purposes.
R2\OJK/o i OH HO Formula (A) {@219} Scheme 1: lilllZlel Treprostinil esterification was catalyzed by strongly acidic resin Amberlyst® l5 (Rohrn and Haas). ’l‘reprostinil acid was dissolved in anhydrous dioxanex’alcohol at a concentration l0 rng/rnL (typically 4 rnL). l (Rx—OH} added was appropriate to make corresponding chain. length at the R2 group. By way of example, for the (32 (ethyl ester} compound, the l was l. The molar amount of alcohol in the solvent was ten times the molar amount oftrepros'tinil, {(313221} Treprostinil in efalcohol solution was added to washed and dry Aniberlyst resin. Per each 40 mg treprostinil, l g resin in a glass Vial was added. The mixture was placed on a shaker and incubated ovemigltt at 40 "’13. Next, the liquid n was taken out of the vial, washed twice with 3 pi dioxane. All recovered solvent was then collected.
The solvent was dried by nitrogen stream until the evaporation d, The remaining treprostinil alkyl ester and nonvolatile l (if long chain alcohol used) was dissolved in 2 mL hexane/ethyl acetate lzl, and cleaned by liquid—liquid tien VS equal volume of phosphate batten and Ellen water. Next, the organic layer was ted and, dried, by nitrogen stream and further in vacuum. If a long chain alcehol used, an additional puritieatien step was required to separate aleohel by liquid eliron'iategraphy. ACE CN 5 run, Ultra-inert HPLC Column, lllllx2l «2 mm was used, with mobile phase of hexane/propanol 983%.
} Scheme 2: {9622M To a solution of (l R2l{,3aS,9aS)-{E2,3,3aft,9,9a~ltexahydre—2—hy‘droxy-l- [(3S)—3—hydroxyoctyll—lH~benzlf§inden~5-yl}oxy}aeetic acid {treprosthiil} {78.1 mg, 200 tilflOlCS) dissolved in l,4—dioxane (2.0 ml...) was added Amberlyst® l5 resin. (2.0 g) and alcohol Rg—OH (2.0 mmoles, 10 equivalents). 'l‘lie reaction mixture was heated ta 4% °C and d, to shake at approximately 100 rpm for l8~l96 heurs, Solvent was removed and the resin was washed with acetonitr‘ile (MeCN) (3 x 3 ml). The 1,4—dioxane and MetilN ts were combined and dried using a gentle stream of warmed N2 gas and gentle lieat te yield a. thick waxy solid. The crude material was dissolved in 20% "PrlCH-l/l-lexanes and ted to preparatory HPLC purification. Solvent was removed from the purified al using a gentle stream of warmed N2 gas and gentle lieat te yield an off—white waxy solid, The pure material was suspended in ethyl lactate for storage and was submitted t0 analytical HPLC fer concentration determination, {@224} By way of example, the follewing eempounds or" Formula (A) were synthesized by the method of scheme 2.
R2 green Cempeund = abhreviatien ng—TR R2 gmup Campmmd abhreviatim """""""" ‘ fl 5mm R2 (5C9) R,:/\/\/\/\/ELLL((~9) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘C, "a (8}2C9JI'R E R":MA ((Sly-ch) : \/\/\/\/fi'"" ('Ei3—2cgn'I‘R, R («Tm-26:9) h \/\/\/\/R"((38) "a (S)-2€:Ig—7§‘R RW((jjS)-2(:3j} E}"""""""" /\/\/\/mmnfgm R1 —4ch 6:IVER R2,W (( a (4—3 R R2: W11 (C1) {"S‘TR R) M ((1) R1 \/'711' (03 CrTR {09225} A general diagram for synthesis 01" the cthyi ester of trcpmstinfl is shown in Scheme 1, beiow. The aimhol can be modified "based on the desired aikyi ester chain, length (ag Cs—Cm alkyl esters of seven or Odd. chain length, straight chain 01' branched).
+ Ho—R2 Scheme 1: fication Mechanism for aikyi ester-557R ds Exam 1:: 2 S--0ntaneous and esterase-mediated hvdmi 'sis; of firetmstinifi aik '1 esterS {@9226} Spontaneous and/"01* estcmse—mcdiatcd hydmlysis was measured. far the pmstacyciin alkyl ester compesitiems provided in Tabia 2. CK indicatas, the aikyi chain , at position R2 ofthc compuund ofFormula (A)e provided above» Tame 2. Campsnents of pmstacyciin 8."in ester mmpasitians iiyémphishi Hydroyhehi PEGyizate COKfl§30§i€i a: PEGJipid EXEC c d (m Adfiiéive nifii‘f/u nwi‘E/ép Additive lipid "101% Squalanc Choi~ Squalane PEGZR Chol- TSO'] C6-TR Squala PEGZ'K 0~ Choi- 1R Squalane PEFZE‘K mc ‘-' ’ Squalzme --TR SquaIa-K . {tillZZ’i’l Additionally, spontaneous hydrolysis was measured for 200 old of treprostinil compounds derivatized at the carboxylic acid. group with, either a C3, C4, C5, C5, C8 or Cm alkyl group in 26% ethanol at 40 DC at six time points (0 hr., 1 hr, 2 hr, 4 illi, 6 hr, 24 hr). {@228} Each sample was prepared as a 290 uM solution in 26% ethanol. At each time point, an aliquot was removed for lelPlfl analysis to resolve ing reactants (Cg, C4, C5, Cg, Cg, Cw) or their degradation product {treprostinil}. tier each sample, hydrolysis was calculated from the measured. reactant and product peak areas: % hydrolysis (product peak area/"(reactant peak area product peak area)*‘ lilll}. liflGZZQE The results ot‘ the time course experiment are provided at Figure lA. The results indicate that hydrolysis rate is correlated with the length of the allryl ester , {$3239} Esterase mediated hydrolysis of treprostinil compounds and contrpositions was measured for compounds tized at the carboxylic acid group with C2, C4, C6, Cs and C10 all The results of this study are provided below in Table 2A and Figure 37, Specifically, Figure 37 left, shows that conversion to treprostinil depends on alkyl chain length. in this experiment, treprostinil alkyl esters were incubated for 4 hours at a final concentration tit/300 nM in l mL of tissue nate ed in water and normalized to it) nag/ml, of protein. {(313233} Figure 37 right, shows conversion of {Egg-TR, to treprostinil (percentage) in the presence of rat, dog or monkey lung tissue homogenate. @3an was incubated for 4 hours at a tinal concentration ot.‘ 200 anl in 1 ml, of tissue homogenate prepared in water and ized to l() mg/mL of protein. Both Figure 37 ments (left and right graphs) were performed in duplicate and the lines "epresent nonlinear exponential regression assuming 1 phase decay.
Table 2A,. Rate et‘treprostini} allay} ester conversion in the presence efrai, deg or monkey lung tissue heinogenate" Rate of tinii Clo-TR. alkyl ester conversion E (anL/h * g of pretein) Menkey Exam ie 3 m Particle size erizatien 0f tre reefinii eem mittens {93234} The eonqfirositiens in Table 3 were Subject to particle size eharaetei‘ization., Cx indicates the alkyl chain length at pesitien R2 0f Ferniuia (A), previded above.
Tame 3. Cmnpesfitiens subject to partiele size terization (3‘0me Hydeepheb PEGyiate €me Eiiydrogeobic PEG?" mm: ' Gym n ".3, .‘in moi% Addmf'e 1mm mol% a Additive input} E moi?» ; E ' mei‘Z/o g Chfli- T554132 Cz—TR PEGZk 10 T499 (C3) CTTR S iualane PEGZk O Chei— T500 (C4) (gm 13mm; 0 'TSGHCi) (ii—TR n 6) . m Cho‘i- 1‘55-‘ '08) Cg—TR PEG21< 10 "$690) COTR______________________________________$92.32___________________i ________________________________________________________1.9.___________i : Choi— = 1568((313) (Em—TR S Llalane 10 g.....I"£ch.....+CvTR......§.£l9.§.3.§!}£.................-.. "9 .......................~............. .5,..................................+ T637me CWTR S ualane PEGZk 1t) {tBfiZSS} All particle Size measurements were perfem‘zed using a Wyatt 'fE‘echneieg-y MebiusTM Zeta Potential/ Particle Sizing Instrument in Quasi~eie5tie light scattering (QELS) mede. Cempesitien aliquots were diluted 10~foid in tered (0.02 Bum pore fitter) nin‘epure of deionized H20. Light scattering data was eeiiected and, convened inte particle size and size distribution using Dynamics® v. 7.2.4 instrument software. Reported average particle size diameter is hased on the cumulants model, which atically tits particle diffusion constants tdetermined lay the raw scattering intensities of particles in a suspension} to obtain the particle size mean and a bution of particle sizes around the mean diameter. {@236} it was found that the le size (average particle er) of treprostinil compositions increases in size in compositions comprising C2—C5 alltyl, ester tized treprostinil, and decreases in size in compositions comprising (la—Cu alkyl ester derivatized treprostinil. 'l‘liese results are provided in Figure 2. The largest average particle diameter was found for itions comprising treprostinil pentyl ester (ties, treprostinil derivatized with a (:35 alkyl ester) (:le6 run). Compositions comprising stinil ethyl ester had an average particle diameter of All nm. It should he ized that through manipulation of processing parameters the same compositions could he produced with ent mean diameters and size distributions. Manipulations of composition in combination with manipulation of processing parameters could also he performed to produce particles of various sizes. {@237} Under the conditions utilized here it 'as also found that longer chain derivati'red treprostinil compounds tormed more uniforn'i particles than compounds having shorter alkyl ester chains. Particle uniformity was determined using the software—calculated spersity ("AFDl Polydispersity is defined as the standard deviation of the particle. size distribution from the mean particle size value. %l’D normalizes the polydispersity to the mean diameter by dividing by the mean size and multiplying by lilil. These parameters indicate whether a particle suspension has one or more size populations of particles {monomodal versus multimodal). it also gives insight into the width of particle size distribution (or degree particle uniformity) around the mean for the respective particle populations. {09238} Dynainich polydispersity parameter represents a monodisperse population of particles if 9-65.31) \ l5. A calculated %l’l) 2‘: 57% represents a disperse population of particles. For instanceSe the %PD data plotted in Figure 2 yields information about the mity of particle size tions trorn the treprostinil, nds tested. {lg-TR ('l‘R.=treprostinil), (Sm-TR, Gig—TR, and CHER alkyl esters yielded near monodisperse particles with %PD at or around l5. CTTR, C6~TR, (Em—TR, and C13~TR all-ryl esters yielded les that have 9/:53l’D ly above the l5, suggesting that there is one population of particles. However. these particles possessed a wider distribution of particles sizes around the mean particle size when compared to Cgu’l'R, C1(;~'l'l'{, Ctzm'l'R, and C1 4—TR. (fig—TR, C4— TR, and Cg—TR showed much greater than 15 %PD and some > 5 . These values te that there are multiple populations of particles that possess wide particle size distributinns.
Esamle 4 Measurement of cvelic ine munchies gt hate ‘cAMP’ levels in CHE}— K‘l, cells in res onse to ire rostinil com ositions {llll239} A cell based Chinese r ovary-Kl l-Kl) assay based on the GloSensorTM cAMP assay (Promega) was used to characterize the effect of treprostinil alltyl ester compounds on cAflVlP levels. {9624" cAQlVlP is a second messenger involved in signal transduction of G~protein coupled receptors (GPCRS) acting h Gws and Goal proteins. Because the treprostinil receptor is a GPCR, the assay provides an indication of whether the respective prostacyclin compound (or metabolite thereol) binds its receptor and activates the GPCR cell ing cascade, Willa/ill The GloSensorTM assay harnesses a genetically d form of firefly lucii‘erasc into which a cAMP—binding protein moiety has been inserted. Upon binding of CA MP, a conformational change is induced g to increased light eutput. {llllzclfil The EPZ anoid receptor was co—transl‘ected with the GleSensorTM plasmid, (Promega) into CEO—Kl cells as fellows. CHO—Kl cells were harvested when the tnoncloayer was at 5049094; confluence. First, cells were washed with 5 nil. PBS" ’l‘wo mL of pre~warmed (37 CC) 0.95% trypsin—EDTA (Life Technologies, Cat "ll: 253G0054) was added, and cells were dislodged by tapping the flash on the side. Next, it) rnL of antibiotic free growth media (Life Tech: Cat #: 31765092) containing 19% fetal bovine serum (PBS; e, Cat #: Sll30ll7l .03) was added, and cells were centrii‘hged at 250 x g for 5 s at room temperature. The media was aspirated, and the cell pellet was resuspended in ll) mL of growth media. Cell number was determined using a hemacytometer, Each well of a culture treated 96 well. flat bottom plate {Costa}; Cat #: 3917:) was seeded. with l X 104 cells per 100 iLL antibiotic-free growth media. The cells were incubated overnight at 37 DC and % CO; in a water-jacketed incubator. {@9243} For small scale transfections of up to 20 wellsa the pGLoSensor—ZZF cAMP plasmid (Promega, Cat #: E23fil) (2 pg): {EPZ} (l0 ng) ne, Cat i‘. SClEhSSS) : pGEM~ Bth-t) (ll) ng) (Promega, Cat #: PZZH) ratio was diluted to a final concentration of l2.t3 ng/nL (total plasmid) in 0pti~MEM l reducedusernm medium (Life Technologies Cat #2 l985062). Next, 6 ul; of FuGENE HID transfection reagent (Promega, Cat #: E23 l i) was added to ltill ills of diluted plasmid and mixed carefully by gentle pipetting, The complex was incuhated at room temperature for l) to 10 minutes, and then 8 llL of the complex was added per well ol‘a 96 well white assay plate (Costar, Cat it: 39W) and gently mixed without disturbing the cell monolayer, The plates were incubated for 29—24 hours at 37 "C and 5% C02 in a water—jacketed incubator. Following incubation, cells were treated and analyzed.
} For larger scale transfections, the athrementioned steps were scaled up accordingly, and cells were frozen following the last inculiation. in order to prepare frozen transfected CEO-Kl cells, the media was ted from culture flasks and cells were rinsed with 5 ml, PBS. As above, 2 ml, of rare-warmed (3‘? 0C) (3.05% trypsindZD'l‘z-‘r (Life Technologies, Cat #1 25300054) was added, and cells were dislodged by tapping the flash on the side. Next, it) mL of antibiotic free growth media {Lille ’l‘echnologies, Cat #: Ill765ll92) containing il0% FBS ne, Cat #: Sl-l3tlll7l .83} was added, and cells were centrifuged at % x g for 5 minutes at room temperature. Cell number was determined using a hemacytometer. The media was aspirated, and the cell pellet was resuspended in freezing media (Millipore, eat #: S—OOZél—T) at 2.5 x l85 cells!" Vial. Translected cells were incubated overnight at —8tl 0C before transfer to liquid nitrogen for long term e. The frozen stocks were then thawed one day prior to use for assays, and cells were seeded at 25 x l04 cells per well in lllll uL ot‘antibioticwfi'ee complete media (E712 (Life ’l‘echnologies, Cat # : 3 "65092) +10%FBS (Hyclone, Cat #1 l.G3)). Following an overnight incubation at 37 0C and % (it); in a water—jacketed incubator, the cells were ready for use in CAMP response assays.
{Wit/£53 in preparation for cAl‘s/ll? ement, the cells were lirated with the GloSensor cAMP t prior to treatment. For equilibration, the medium was carefully removed from the individual well. Next, lGO all of equilibration medium (6%v/V of Glosensor Reagent stock solution (Promega, Cat it: E29llfi l0% PBS (Hyclone, Cat #2 Sl~l3007lfl3> and 88% C02 independent medium {Lite Technologies, Cat #: $945988» was added per well of the l plate, and added to the side of each well. "l‘he plate was then iizicuhated for 2 hours at room ature A first ore—read measurement was taken using a microplate reader (MicroLunrat Plus}. Plates- were incubated for an additional l0 minutes at room temperature, followed by a second ad measurement {99246} Working solutions of free treprostinil and treprostinil all-ryl ester compounds were prepared at 10X concentration so that the final concentration was lX once added to the cells. Following treatment, each plate was read. every 5 minutes for the duration of the assay using a niicroplate reader (MieroLumat Plus). 111 erder to determine the feld change in CAMP ve tn the central, the transfeetien efficiency was first determined by dividing the second pre—reacl measurement by the average of the corresponding ere—read measurements. Next, the normalized relative light units (RLUS) of the s were determined by dividing the plate read measurement by the transfectien etlleiency. The feld change in CAMP relative to the l was then determined by ng the nen’nalized RLU of the samples by the nermalized RQLU of the l.
"Validation of CAMP assa * usin'r free tre ii'estinil {00247} The CAMP assay was validated using free treprostinil. ’l'represtinil (l0 nix/l, l 01%,, 0.1 {ah/1,, 0.01 itMg 0.001 itM, 0.0001 11M, 1 rah/l", and 0000001 ,ulvl) was added tn equilibrated CEO-Kl cells, and the cells were then incubated fer 30 minutes. Luminescence "/35 111611 111608 1311’ij at 11301111 1611'113QT3HKC.
Altai/lestertremeslinilsetnneshines {002483 CEO—Kl cells co-transfeeted with the £02 recepter and GleSenserTM plasmid were challenged with free stinil (l0 ul‘vflg 1 itlvlf, 0.1 {sh/1,, 0.01 trivia 0.001 tilt/15., 0.0001 hM, 0.00001 lil‘vl, 0.000001 MM) and treprostinil alltyl ester eenipeunds, ire, compounds having either a C6, Cg 0r C10 straight chain alkyl group at the R1: pesitien of the und of Fnrnuila (A), shewn ahtwei {002493 The fellowing concentrations of cempounds were measured: 10 $11M, 1 11M, 01 ills/le 001 lthl, 0.001 0M, 0.0001 till/L 0.00001 0M, 0.000001 ulvl. CAMP levels were then measured every 5 inimites ever a time ennrse at S hears. Results trern the three highest cnncentrations are provided at Figure 3A (ll) tilt/l), Figure 3B (1 11M) and Figure BC {0.1 uM). The components of the treprestinil compositions set ferth in Figures 3A, 313 and 3C are shown in Table 4 below. } cAMP levels in response to the treprestinil deeyl ester (CWTR) (l0 itlvl) were equivalent to free stinil and the levels were sustained fer at least 6 hours. The sustained CAMP level was not exhibited in response to free treprestinil. {00251} CHO~K1 cells ce~transtbcted with the EFL? receptor and GlnSenserTM plasmid were challenged with free treprestinil (5 11M) and treprestinil een‘ipesitiens having either a treprestinil derivatized at the R7, on at" the above eenipeund with a C2,", (35,", C3,", C10, Or {112 straight chain group (5 lthl). The components of the treprestinil eernpesitiens are Enameledin iabieS 1,3"10w. CAMP ieveis were thCn measmed every 5 minutes eve1 a time course 0178 heurs. {$02523 Results of these experiments using the 5 311M dese are provided, at Fi gure 4 and Figure 5 CAMP se to the C; and Cm trepmstinii aihyi esters (5 CM) was greater than er lent to the response induced by free treprostinii (Figure 4). The CAMP Eeveis in respense to the C; and C 10 treprostinii alkyi ester compounds were sustained significantly Hunger than free treprestinii and the C6, Cg, and Cl; treprestinii derivatives.
Table 4. 'I'retsrestinil alkyl ester campusitions shown in Figm‘e 3. .1 .. t ChoL (ox—ER mum‘iowautaae Squaiam _.
Lempesfimn ‘ ‘ H1 BQPL Max tAMPiutiw 1,, PEG-20W (CK—TR) "101% mol‘i’o mew; 111019?) Campesitien (CXJE‘R) 'Ceneentmtinn Trepmstinii T554 (CZ—TR) (5 gift/E) T6111 (CgIR) (5 Mali) '1'555 (Cs—TR) (5 giM} '1‘556 (Cm—TR) (5 3.5M) T568 (Cm—TR) (5 31M) ‘Tre il com 3011.1ids {M1253} The cell hased (CHO~K1) CAM? assay was also used te characterize the effect of untbrmuiated treprostinii compounds (Lei, cempounds without a hydrephehie additive a1td/01'an amphiphilie agent such as a PEEGyiated iipid) en 12AM P ieveis. 3:1}0254'E CHO—Kl eelis contransfeeted with the EP2 reeepter anti GieSenserl‘M d were nged with free treprostinii {5 CM) and treprestinii derivatives having either at Cz, C3, (‘4, C5, C6, Cg, Cm, er Cl; straight chain aihyi estCr moiety (5 nix/i). CAMP ieveis were then measured every 5 minutes over a, time eeurse of S hunts. {@255} Results of these experiments are provided at Figure 5. (If; and C10 treprostinil allryl esters d. CAMP se levels equivalent to free treprostinil. The C12 derivatized treprostinil compound was found to induce the smallest CAMP response.
Nebulized Tre rostinil Ester Com, ositions {@255} The cell based (CEO—Kl) cAMF assay described above was also used to Characterize the effect of nebulization of various stinil compositions on cAMl’ levels. {@9257} CHOle cells coutransf’ected with the EFL? receptor and filoSensorFM plasmid were challenged with ll} nM free treprostinil (control or ne‘oulized} and it) uM treprostinil itions comprising a compound derivatized with either a Cg, Cg, (his or €12 ht chain alkyl group at position R; of the compound of Formula (A; provided above (control or nehulized).
{M358} The compositions tested in this experiment are provided in Table 6 below (results in Figure 6). CAMP levels were then ed every 5 minutes over a time course of 8‘ hours ngl Ne'hulizer Aerone‘h Pro (Aerogen) was used to ne'hulize treprostinil derivative compositions Desired volume of the formulation (usually 3 fills) was loaded to the mesh head of the zer. The head was connected directly to the glass iinpinger with air- tight seal. Nebnlization was carried out using factory settings until the entire sample was ne‘bulized. After nehulization was complete, the head was disconnected; impinger capped and centrifiigvetl 5 min at 60G X g to settle the aerosol inside the impinges The procedure provided nearly ll)0% yield in collecting the nebulized sample. {$92630} As shown in Figure 6, nehulization of the derivatized treprostinil compositions did not have a deleterious effect on cAMP response levels, or duration of the response.
Table 6. stinil Alley! Ester Compositions: Effect of initialization Chol- «CK—TR P3262009 Squslene sore Max cAMPlevel mol% mol% mol% molt/s Fold TreeroStiflil ~15 ‘ ‘ T554 (eerie 3' - 33 1555 (csxrn) = z . i . ~13 ' ‘ T556 (Cw—TR) 1568 ~ {Tn—'I'R 'F‘ N13 . p Cem 39111an 01‘th 1021111111 com 01111118 and com ns c0111 Tisin ' the same {11112611 The ha11'niaximal effective coneentratiens (EC50) 0f the varieus treprestinil eempeunds were detennined using the results 110111 the CAM? assays. Tab1e 7 {bebw} izes the Eng data for CAMP response in CHG—Kl ee1ls for the. following sitiens and compounds: T554 ((I33-'1'R.4G 11101 11/6, squa1ane 40 mol ‘96, {Iliml—S’EGZk 18 me}, %, ESPC .10 11101 "76), T612 (C—TR 10 11101 %, DMPE—PlK 91) 11101 %) 175111 (C51R 401110 °-o squalane 41} 1110190, C11011719'{12k 21111101 %) TI6OE (Cg-1R 41) 11101‘"A), squalane 40 mol°/ 10 mol We), , C1101P131521< 1131110196. DOPC TT555 (Cg~TR 40 11101 53/6, squa1ane 40 meE %, C~1101PEG21: 1811101 % DQPC 11) 11101116), 1556 R 40 11101194), squamne 40 T1101"11/), C11011315621 11} 11101 9/6, IDOIEF’C 10 11101 9.5;), T568 (Cm—TR 40 11101 "/6, 51111313116341} 6, Chm—PETEk 11} 11101 ‘1/6, DOPC 11} 11101 9'6), 162111112TR 111 11101"A), DPPE-PZK 90 11101 9/0), T623 (CWTR 411 11101/otsquamne 4Q moE/%C1101PEGZk 11} 1111:1196 I DOPC 10 11161 ‘16,} ’1‘622((I316—'1R 10 11101 9/6, DPPE132K 9011101" ,1, anTR (1911 11101 9/6)? Cg—TR (190 mol (1/5).» C12~TR (100 1110196) and {Tree 'estinilt.
A subset 01‘" the dose Tespense curves fer selected tinfi eempeunds and eernpesitiens are previded in Figures 7—141. With free treprostinil the peteney decree withintreasing incubatimi time (supporting an immediate respense}, while 2111 the various treprestinil itiens exhibit an increasing potency with ineubatien time (suggestive 01' a delay— i'elease profile). 1"11’1167£1Mathias101'tieprnstmfiwmnesitwns Samples . 5.0151 6.0111 7.011? 80111 'T'Teprostinil '"1'5'5'1'11‘1—111) ‘601 (C6-1‘11f; T555 (Cg—TR) T556 (Cm—TR) T566 (Cm-TR) T631 (CHER)- "fame 7. EC50 vafiues for H'r'epmstinil eompesiiions. earners EC" (111M) £33111 7 .43 22T _ 1 53 1 8/- (eons1rarn) -- .- e (3.9 3.39 ,, (eonsmn -- (consmm .- Cons-32311: A11EC 50 V231u *For szamp'ies T612 (CZ-TR); T622 (Cm-TR), because 01’1oxieiiy 233 higher concentratiens, 3110se values were excluded from the analyses in order to te an Ean vaiue.
Exam 1e 5 — Determinetien 01' the effeet of ire resfirdfi eemwends rm eeii reififeratien {1111262} In order 133 determine any efeet of treprostinii compounds on eelE proliferation, ee11 has.d assavs using 131inK1 eeds and mi a1veo1aree11s (11118383 eelis) were performed.
CHO~K1 Cehs 1111121131 CHO—Kl cel1s were harvested when the cell yer was 504311941 eenflnent {use passage 4~1 1). Media was aspirated out of the flask, and eeils were rinsed with 2 mL of F12 rnedia. Next, 1 mi- of ere—warmed (37 °C) 0.25% n—EDTA (Life ’1‘eehnoiogies, Catifi: 25300054) was added, and cefis were disiedged from the flash by tapping it on the side. Complete growth media. (F12 (Life Teehno1ogies, Cat 11‘: 31765092) 1-1319/517133 (1*1ye1or1e, Cat #2 81131111371113) 1X Pen—Strep (Life Teehnoiogies, eat # 1514(1— 122) was then added at a voiume of 10 mL. Cells were centrifuged at 250 X g fer 5 s at 17011111 temperature, and the media was aspirated. The ee11 pedet was resusperrded in 1.1) 3111.. eompiete growth media. Ce11 number was ined using a hemaeytometer. Cefls were then seeded at 2000 oe11s per we11 of a. 96—we11 plate in 101} 331- of comp1e3e grow/3h media.
The piate was incubated overnight at 37 "C and 5A: (I{)3an a waterjacketed incubator. 6411 The next day, 81) 33L of fresh cempiete media was added to each well. and C1:10—K1 ee11s were chafienged with ostinfl eompeund and composition treatments. The g solutions were ed at 10X oenoentrafierr, and foiiowing 2 foid seriai (11133310333, 33L aliquots were added per we11te arrive at a finai 1X concentration. Foflowing a. 48 hour incubatien at 37 0C and 5% C02 in a jacketed incubator, the ll’ll’llbllflly effect on cell prelit‘era‘tien was ined. Plates were analyzed using 20 till et‘ Prestc Blue reagent (Li 'e ’l‘echnelcgies, cat #: A8262) per well. The reagent was mixed, and plates were incubated for l hear at. 37 "C and 5% CO; in a water—jacketed incubatcr. Plates were read using either a Cythluer Series 4600 {PerSeptive BieSysterns) or Synergy Nee rnicreplate reader (Bin'l‘ek) with emission it: 590 run and excitation l: 56G nni. The percent inhibition was determined using the following formula: % inhibition 1009/43 (treated samples/control X lGG‘l/oil.
NR8383 cells {@9265} Rat alveolar NRSSES cells were harvested when the monclayer was 50~ 90% confluent (use passage 5~l l). Because the NR8383: cells include bath adherent and non— adherent cells, media was transferred to a 50 mL Falcon talie. "l‘c clitain the cells remaining in the flask, 2 HIL efplain media was added, and the remaining cells were scraped cut of the 75 crn?’ flaslt with a cell scraper and added to the Si) inL tulle. Cells were centrifiiged at 200 X g for 5 s at room temperature, and the media was ted. The cell pellet was resuspended in ll) mL complete growth media (F12 (Life ’l‘ecl‘anelegies, Cat #: Ill'765til92} +l5% PBS heat inactivated (Hyclcne, Cat #: SHSGGHQB) + le’en—Strep (Life legies, cat #: l54l0 — l22)). Cell number was determined using a liemacytenieter.
Cells were then seeded at 4000 cells per well cf a 96wwell plate in 100 trL ct complete growth media. The plate was incubated overnight at 37 0C and 5% €02 in a wate jacketed incubator. llllllliidl The next day, 89 all of fresh complete media was added to each well, and the NR8383 cells were nged with treprestinil cernpcund treatments. ing a 72 lieur incuhatien at 37 0C and 5% C02 in a water—jacketed incubator, the itcry effieet on cell preliferatien was detemnned. Measurements and calculaticns were made as described aheve for the Cl—lO—Kl cells.
Effect of tre rostinil alk fl ester corn ,oslticns on CHIS—Kl cell eratien {69267} CHO—Kl cells were challenged with compositions cenrprising treprostinil alkyl ester tives: T554 (Ch-TR 40 mo! "/6, squalane 4t} ll’lOl ‘34}, Chel—Plilil2k ll} incl ‘34), DOPE? ll) incl 9'6), T543 (anTR 40 nicl % Teen Acet 4G l‘l’lGl "/23, Chol~PE€32l< ll} rnel 9/0), T555 (Cg—TR 4t) l‘l’lOl %, squalane 46) incl %, Chel-PEGEk ll) nicl %, Still-"C l0 incl 9/5), T556 (C10"TR 4-0 1’110l %, squalane 4-0 incl %, CholmPEGer l0 rnol 9/6, DOPC ll) niel 0/3)), T568 (C1 z-TR 4O moi %, squalane 40 moi 9/6, ClioluPEG’Zl; l0 nioi % DQPC it) mol0303: T623 {Cw—TR 4G moi 9/1}, sqnalane 40 moi 9/3, EGZk l0 moi *3/09 DOPC it} inol 33/539 at trations ranging from 0.55 31M to l25 31M. Following a 48 hour incubation period, the inhibitory effect of the treprostinii derivative con'ipogitions on cell proiileration was determined. {33268} Table 8 below summarizes the effect of the above treprostinil compositions on CEO—Kl cell. proliterations. At the highest concentration of tilt) 33M, only T543 (Kits—TR") and T623 (Cm—TR) exhibited a Significant tory effect on cell proliferation.
Table 8. Effect oi Tre rostinll (om oeitions on eell milletation ' ' CiroKl Cells NR8383 Cells t< 100 iii/10.78 31M) (3 ion tilt/Cl {3.78 ttl‘v’l) Detectable cell proliferation W7"3-»4-7 lab.3 or:1R) : . tion only at concentration I> tilt/l tration 2511M No detectable cell proliferation Deteetable cell proliferation r554 (Cg—TR) inhibition inhibition at "/0 uM ' Deteetable celi proliferation T5 5 5 (Cg—TR) 1:340 tietectable cell proliferation inhibition only at concentration > inhibition 50 itl‘vl Detectable cell eration No ‘tieteetable cell proliferation T5 5 {i (CitinTR) inhibition only at concentration >— inhibition Stl 31M Detectable cell proliferation 'l558 No detectable cell eration inhibition only at tration > {Cm—TR) inhibition lGG nM Detectable cell eration Detectable cell proliferation ToZS (CWTR) inhibition only at 100 nlvl inhibition only at 160 tiM concentration eoi'ieentration Effect of tre ii‘ostinil com ositions- on NR8383 cell roiifei‘ation {@9269} Rat alveolar NR8383 cells were challenged with the same treprostinil derivative compositions: lifilll’l’lti 1:343 (Cg—ER 40 mol *3/43, loco Ace 4i} moi"A», (Thol-PEGZk 20 moi "13433), TT554 {C~—TR 40 mol 9/0, squalane ~10 inol %i, CholeEGer ll) inol % DGFC l0 niol All), TT555 (CgTR 40 mol "/0, sqiialane 40 mo} % Chol~PEGZk it) i'nol %, DOPC l0 mol 0/6), T556 (Cw-TR 4Q moi *3/05 ne 40 moi ‘34), Cllt'lluPEGZ‘: it) rno % DQPC it) inol 903, T568 (Cu—TR 4i) moi 9/0" squalane 401’1’10i ‘34), Cliol—PEGZk i0 mol *3/05 DQPC l0 inoll‘3/o) and T623 (Cm—TR 40 mol %, squalane 40 mol 9/5, Cliolull‘EG’Zli: l0 niol 9'0, DOPE, ll) mol 9/0}, at the same concentrations (0.55 nM to l25 tilt/l} as the CEO—Kl cells above Following a 72 hour incubation period, the inhibitory effect of the stinil derivative compositions on cell leration was determined. lilll27l} Table 8 above summarizes the el‘i‘ect of the above treprostinil compositions on NRSSSE» cell proliferation. At the highest dose of lilil nix/i, all of the treprostinil derivative compositions trated. some inhibition of cell proliferation, and T543 (C5—TR.) exhibited the greatest inhibitory efflect.
Effect of tre rostinil alk ,-1 ester con1,oiinds on cell ,reliferation {992723} In order to determine any effect of treprostinil derivative compounds (unlbrmulated) on cell eration, the cell based assays described above, using (Illa—Kl cells and rat alveolar cells (NR8383 cells) were performed.
CHOnKl cell ‘eration assav {99273} {THO-Kl cells were nged with treprostinil alkyl esters, tier, TR nds of a (A), having the following R3 groups: C2, C3, C4, C5, C6, C8, C10 or C" straight chain alkyl, at dosages ranging from Bligh" hM to 25 tilt/l Following a 48 hour incubation period, the inhibitory effect on, cell proliferation was ined. {@274} Table 9 below summarizes the effect of the above treprostinil alkyl esters on Clithl and NR8383 cell proliferation. At the highest tration, only the stinil octyl ester compound showed inhibition ofccll proliferation.
Table .9. Effect ol‘treirnstinil alkvl esters on cell rolii‘eratlcn Samples (3l€[()—Kl Cells NR8383 Cells l ,----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------4 : (0.195 nM 25 can (alas hilt/1‘25 tor) CTTR. No detectable cell inhibition No delectalfie cell inhibition C3—TR No detectable cell. inhibition No detectable cell inhibition.
(Li-TR. No detectable cell inhibition No detectable cell inhibition (jg-TR No detectable cell inhibition cé—rn No detectable cell inhibition (jg-TR Delectable cell inhibition at 25 nh’l Some detectable cell i inhibition {Sig—TR No detectable cell inhibition No detectable cell inhibition C13~TR No detectable cell inhibition No detectable cell inhibition, NRSS‘S?» cell roliferation assn , l9®275§ Rat alveolar NR8383 cells were challenged with treprostinil compounds derivatizetl at the R2 position of Formula (A) with a C2, C3, C4, C5," C5, C89, C10 or C1; straight chain alliyl moiety at. concentrations ranging from (It. l95 anl to 2.5 iiM. Following a 72 hour incubation period, the inhibitory effect on cell proliferation was determined. } ll‘ahle l 1 above summarizes. the effect of the above treprostinil alkyl esters on NRSBS- cell proliferation. Similer to the 1 cell assay? only the treprostinil octyl ester showed some tion of cell proliteratioh at the highest concentration,‘ ’l‘re n‘ostinil derivative corn .ositions effect on cell ,i‘oliferation, {33277} In order to determine the effect of treprostinil derivative compositions on cell proliferation, cell based assays using Cl-lO-Kl cells and rat alveolar cells (NRSISSLS cells) were performed.
Effect of trearostinil 00111. ositions on CHO cell roliteretion } Cl-lO~Kl cells were challenged with treprostinil derivative compositions: T596 (Cg—TR 45 mol %, DSG—l’2K 55 mol %), T597 (Cg—’l‘R 45 mol 9/253, DSG—PZK 55 mol %)i T598 (anTR 45 mol 9/6, K 55 mol (3/0)? T599 (CWTR 45 rnol%e DSG—PZK 55 mol 9'6}, and T600 (Cgifll 45 mol %, DSG—P2K 55 mol 9/5), T612 (Cgfl‘ll l0 inol %, Div/{Pli- PlK 9G inol 9/2)), T6l3 (Cg-TR l0 niol ‘34; DMPE—PlK 99 mol (3/0)? at concentrations ranging from 0.23 nM to 29 lilvl. Following a 72 hour incubation period, the inhibitory effect on cell proliferation was determined. Following a 148 hour tion period? the inhibitory effect on cell proliferation was determined. lilil279} 'llahle 10 below summarizes the effect of the treprostinil compositions on CHO—Kl cell proliferation None of the compositions tested, exhihitetl at significant inhibitory effect on (THO-iii]. cell proliferation.
Table 10. Effect of treirostinil comtositiohs on cell trollferai‘lon, CHGKE Cells NR8383 Cells Sample concentration (29 33M 9.23 pl") (‘29 girl {3.23; 31M) Some detectable cell eration No detectable cell proliferation T595 (CZ) inhibition only at concentration > inhibition 25nl‘vl No detectable cell proliferation Some detectable cell eration tion inhibition at 70oM Table Till. Effect of tre rostinil eomosltions on cell 3 rolll'eratiorh CHO~KI Cells NR8383 Cells Some detectable cell proliferation No detectable cell proliferation T598 (Cg; tion only at concentration > inhibition SOUlVl Seine detectz ' cell proliferation r. . ‘ No dit'ictahle "ell‘" lii‘Olilei‘ttion‘ £599 (on . . ES inhibition at 7: l4.5ul\zl ’ inhibition concentration Some detectable cell proliferation No detectable cell proliferation T601) (L12) inhibition at 3: 14.5nlv’l inhibition concentration Sample concentration (1863 till": — 1.4l 111M} {18% 35M — ill-41 gilt/I} Detecteble cell eration Dctectahle cell proliferation T61; (CZ) inhibition only at 18:0 HM inhibition at T: 90 "M concentration concentration . i re cellorolileration able cell prolir’ anon T61", 3 (C ")2;? . . .. . inhibition only at 1'80 nM inhibition at :_> 90 ttlv’l concentration concentration {@3289} Similarly, CEO—Kl cells were challenged with the treprostinil compositions Toll" (R2 C2), Tel 3 (R2 Cg) at concentratione g from l,4l gill/l to tilt? nl‘vl After 48 hours, the inhibitory efect on cell proliferation was determined, and all four of the treprostinil itione ted lOO‘f/o inhibition, of cell proliferation at the higher concentrations.
Effect of tre n‘ostinil cont ositions on NR8383 cell roliferation {@281} Rat alveolar NR8383 cells were nged with the some stinil compositions (above) as well as 1596 (Cg—TR 45 mol "/5, SSS—MK 55 mol 9/5), 'fl‘6l2 {CZJFR ll} niol %, DMPE-PlK 90 niol 9/5), T597 (Cg-TR 45 mol %, DSG~P2K 55 mol "1%), T598 (Cg— TR 45 mol "/5, DSCi—PZK 55 tool ‘50), T6l3 (Cg—TR it} moi %, DMPE—PlK 90 l‘l’lOl 0/6), T599 {Cm—TR 45 mol %, ZK 55 nin 945), T600 (Cum'l'l'i 45 niol 9/07 DSG—PZK 55 niol %)r and at the same concentrations (0.23 {AM to 29 nM) as the Cl-lG—Kl cells above. Following a 72 hour tion period, the inhibitory effect on cell proliferation was determined. {00282} Table 10 above summarizes the effect of the treprostinil composition on NR8383 cell proliferation. All ofthe treprostinil compositions demonstrated some {£- lO‘E/o) inhibition of'NR8383 cell proliferation.
Exam tle ti fl‘i‘egcrostlnil eom-onnds in viva {@283} The effect nftreprostinil derivative compounds in VlVO was determined by using rat models. Young male rats Sprague Bowley (Charis-33 River) were used for the study" Rats anesthetized with hetamine/xylazine, placed on a heating pad and after surgical isolation and eatheterizatiori of the trachea, mechanically ated throughout the study.
{MEME A catheter was placed in the femoral artery for measurement of systolic {sys} and diastolic (dias) blood res. A thoraeotomy was perthrrned and a catheter inserted into the right ventricle and positioned in the ary artery for the measurement of pulmonary arterial systolic and lic blood pressures. Oxygen saturation ") was measured with a pulse er placed on the paw. {69285} With the rats ventilated on room air (£3ng = 0511)a cardiovascular measurements were made under these normoxie eonditions, in order to induce hypoxia the F102 was reduced over a 30 min period until SaOZ fell to values hetwen 59—60%, and a baseline hypoxia value for each of the parameters was determined. lilltlldéi Groups of four rats each received either 988, free treprostinil (l .7 rig/kg and ll) ug/lig)’. 01' a Composition comprising Czw'l'R (€554); Cg-I'l‘R (T555: (fig—TR 4Q rnol 9:53, squalane 40 tool (375, Chol—PEGZh 10 mol %, DOPC ll} tool 0/5) (38:6 gig/lag)a Clo-TR @556: {Tm—"lit 4t) inol %, squalane 40 mol %, Chol—PEGZR ll} mol %3 DOPC l0 nioli/{i} (ll—{Hi lug/kg))5 C12"TR (T568) § The target dose varied slightly by weight due to the differences in molecular weight of the treprostinil tive compositions as shown in Table ll below.
The actual achieved lung dose was about 5); lower than provided in Table ll (63, administration of l0 pig/kg yielded about 2 rig/kg in the lungs). The various treatments were delivered (via inhalation of ne‘oulized drug to the lungs of the rats, The pulmonary arterial re (PAP), systemic arterial pressure (SAP), and heart rate of the rats were measured continuously for 180 minutes. The PAP signal was collected at ‘2.th points per second.
Table ll. Target {Poses in Acute Hypoxia Rat Model 'l‘arget Dose Target Dose {ughg} (nmole/ltg) ‘l‘reprostinil Treporostinil derivative compound Table 11‘ Target Biases in Acute E-{ypexia Rat Medei *lndicates alkyl chain length at position R3 of the compound ula (A). {06288} The normalized variation of mean PAP {mPAfP} is shown as a percentage from the hypoxia baseline value at (i=0) in Figure 15. The hypoxia baseline PAP value was 100%, and "the 1ges in pressure were measured in cemeaxiseh $0 the hypexie baseline.
The nm‘mallzed tieh efmean SAP (mSAP) is shown as a percentage from the hypexle baseline value in Figure 16. Heart rate is shown in Figure l? as a percentage ef the hypexie baseline value ever time.
Kl. cells in res ense ts ShenamflnTR BQ} A cell based Chinese hamster evary~Kl (Cl-IQ—Kl) assay based on the GleSenserTM CAMP essay (Premega) was used as bed abeve in Example 4 to characterize the effect at" the fellewlng compounds en CAMP evels: a nylu'l‘R, is, the mmpmlnd of Formula. (A) wherein R3 = 5~11011enyl (WM)9 9 C13—TR Le ,tlle eempmmd 01‘ Formala (A) wherein R3C 13 allgyl (\/\/\/\/\/\}7—), 9 CH—TR, 27.6., the eempeund ef Formula (A) wheres: IR3 C14 alleyl (W1)9 9 Cm—TR, 216., the compelled of Formula {A} wherein R3 = C36 alkyl {832%} CHO—K1 cells ce~trensfeeted with the EPZ recepter and GleSenserTM plasmid were Challenged with 5~nenanyi—i’1'epmstinll (branched chain, SCg-TR) 01' treprestinfil alkyl ester compounds having either a C32, C14 01" C15 straight chain alkyl gl‘eup at the R3 position of the above compound. CAMP levels were then measured every 5 minutes over a time course of 8 hours" Dose response curves at 0.5m, lhr, 2hr, 3hr, 4hr, Star, 6111', 7hr, and 8hr incubation time for S—nonanyln'l'R, , and {fie—TR are provided in Figures l 8, '39, and 2t} ,respeetively. Like {Tm—TR and (Sm—TR, the potency of S—iiorianyl—TR increases with incubation time, indicating a delay-release profile. The half l effective concentrations (E553) of the stinil compounds were determined using the results from the CAM? . ZELCSO tbr S-N'onanylfl‘li, {EM-TR, and R are shown in, Ili'igures 18, 19, and 2G, respectively. {69291} Kinetic profile results from the lfi lil‘Vl (top panel) and 5 itM (bottom panel) concentrations of (1312—7E‘R, (EMIE‘R, (Tm—'I‘R, or S-nonanylil'ls are provided at Figure 21.
CAMP levels in response to CWTRS CHER, and 5~rtonenyleR at both concentrations increased, over the first 1—1 .5 beers and were sustained for at least 8 hours. The ranking of activity of the treprostinil compounds was Clgw'l'R > Cog-TR > S—noriariyl—TR > Cats—TR. {@323 The results of the study showed that like the treprostinil elkyl ester compounds having a (312, CM or (316 straight chain alkyl ester group, ariyl—"E‘R, is fittietioiial and, exhibits sustained CAMP activity. Thus, unlike free stiriil (see Example 4-), Swoonenyln TR lies a delayed release profile.
Examile g Cemerisoni of cells: adenosine moneershate eAMl’ activation in Cflflmlfl eells its res ens-e t0 (TH—TR for‘mulatittrts {lilllefl} A cell based Chinese hamster ovary-Kl (CBS—Kl) essay based on the SOI‘TM CAMP assay (l’romega) was used. as bed above in Example 4 to characterize the effect of different CirrTR tonsilletions on CAMP levels. The (EM—TR formulations are shown. below in ’l‘able l2. Composition ’1‘679 does not comprise BOPC; composition T647 does not comprise DOPC or squalarte, The structure ofCH—TR is as tellows: 0‘"I IOH" Table 12,. Components of CI4~TR terminations Hydrophobic E‘EGyiai‘ed Composition Additive lipid (mo! 0/0) (moi %} Choi~ Squaw" Peon; (49 9‘5?) {'11) ‘24,) (IMJT'R Sqnalane (45 %) (45 %) Choi- (none) PEGZk {in 9/3) {99294} {THO-Kl cells co—transtected with the EP2 receptor and GloSensorTM plasmid were challenged with treprostinil alhyl ester formuiations having a C14 straight chain alley}, ester group at the carboxylic acid position and having the components as indicated in Table 1223 CAM? levels were then measured every 5 minutes over a time course of 8 hours.
{WES} A dose response curve at 0.51m; 1hr, 2hr, 3hr, 4hr, 5hr, 6hr, 7hr; and 8hr incubation time for nd T679 is provided in Figure 22. The potency of T679 increases over the incubation time, indicating a delay—release profile. The half l effiective concentration (Eng) of T679 was determined. using the resnits from the CAM? fi and is also shown in Figore 2'2, {some} Kinetic profile comparisons for free treprostinil, T631, and T679 at llltth/l {top panel) and Sold, (bottom panel) are shown in Figure 23, Both T631 and T679 were less potent compared to free treprostinil. i-iowever, unlike free treprostinil, cAMl? activation sed over time in response to both T631 and T679 and was sustained, for at least 8 hours.
The results of the study showed that the T679 formuiation, which is a (EM—TR without DQPC, is functional and exhibits a delayed release profile r to the. profile of the CM—TR T631.
} A dose se curve at 0.5m, 1hr, Zhn 3hr, 4hr, 5hr, (the 7111', and 8hr incubation time for compound T647 is provided in Figure 24. Like T6795 the potency of T647 ses over the incubation time, indicating a delay~release profile. The half maximal effective concentration (E31350) of T647 was determined using the results them the CAM? assay? and is also shown in Figure 24. {fifiZRS} Kinetic profile isons for fine treprostinil, T63 l, and T647 at ltlulvl (top panel) and Sold (bottom panel) are shown in Figure 25. Both T63l and, T647 were less potent compared to free treprostinil. However, unlike free treprostinil, eAl‘v’ll3i activation inereaued over time in response to both T631 and T647 and was sustained, for at least, 8 hours.
The results of the study showed. that the T647 formulation, which is a (EM-TR without DQPC or squalane, is functional and exhibits a. d release profile similar to the profile of the (EM-TR 37631.
Exaiule 9 - Functional CAM? studies for trew-rostinii allvi ester nanoartiele formulations {M3299} A cell based Chinese hamster Rl l) aseay haeed on the GloSensorm cAMP assay (Fromega) was used as described above in Example 4 to terize the effect of treproutinii compositions on CAMP levels" The CAlVlP profiles of the following treprostinil compositions were tested in this study (see also 'l‘ahle 13): 9 "i555. {g—lR (I e the compound of meula (A) ‘Niloluin R2 =W a 1555a:W)Cu;IR (tie, he compound of Formula (A) wherein R2 = a )C17IR (229., he compound of Formula (A) wherein R2 = a "£631: CWTR (i.€., the compound of Formula (A) wherein R2 = a "£623: CWTR (tie, the compound of a (A) wherein R2 = a "£637: meTR (tie, the compound of Formula (A) wherein R2: = Formulation Treprestinil Tieprostinil Squalane DOW (moi Chol-PEG2k No. lalkyl ‘ ester alkyl ester (1130196) : ’ (ex—run *C‘x indicates alkyl chain length at position R2 of the compound of Formula (A). {llilillllll {ll—lO—lil cells co~trarisfeeted with the EPZ receptor and GloSensor’l‘M plasmid were nged with the treprostinil alkyl ester compositions listed above. eAMP levels were then measured. every 5 minutes over a time course of 8 hours. {llllfitll} A dose response curve at 0.5hr, lhr, 2hr, 3hr, 4hr, 5hr, 6hr, 7hr, and 8hr incubation time for composition T637 (Cm—TR} is ed in Figure 26. The potency of 17679 increases over the initial incubation time and then s at a sustained level. for at least 8 hours, indicating a delaywrelease profile. The half maximal effective concentration (131350) of T637 was determined using the results item the CAR/ll? assays, and is also shown in Figure 26. {lltlllllZ} Kinetic profile comparisons for free treprostinil, T555, T556, T568, Tti3l, T623, and, T637 at lllul‘vl (top panel) and :3an (bottom panel} are shown in Figure '27 Each of the treprostinil alkyl ester compounds were less potent compared to free treprostinil.
However, unlike free treprostinil, CAMP activation increased and then remained, at a sustained level for at least 8 hours in response to each of the stinil alkyl ester compounds, indieating that each of these nds is functional and exhibits a delayed release profile. The ranking order of activity for these compounds was ’l‘SSS/Tsto > T568 > T63l > T623 > T637.
Exam le ll? — Enz 'matie conversion kinetics of branched tre rostinll corn entitle {fillilllil} A set of studies was conducted to determine the sion kinetics to treprostinil of linear stinil compounds versus various branched treprostinil compounds. il.4mM of linear Cle or branched treprostinil compounds tliyl~l—propanlelTR, 3,3- dimethyhl-butanyl~TR, 2—ethyl~l-butanyl~TR, S—nonanyl—TR, or 3—pentanylnTR (see below for structures) were incubated with ()2 ll esterase at 37 "t: for l hour, and the conversion (‘34; of total) was calculated at 0.25, 0.5, 0.75, or il hour ineuhation time. s Cg‘TR (216., the compound oi‘Forinula (A) wherein R3 =W) e 2—dimethyl—l~propaoyl—7l‘R (5.6., the compound of Formula {A} wherein R2 e 3fi3ndimethyi—l—hutanyi—TR (128.3 the nd of Formula (A) wherein R3 = > HERMES} Table 14 provides the treprostinii aikyi ester formulations used in this study.
The first three compositione (T568, T631 and T623) are heiieved to form iipid neooparticies, Whiie the last three compositions (T636, T635 and T636) are believed to form ies.
Table 14. Ailey] ester formulations used in Examp‘ie i}. '1(1)romm} t" DMPE— Formulation Treprosiioii ne DOPC (moi Choi-PEGZk ‘ silky] ester No. silky] ester (E1101 3/0) 0/6) (mol 9/8)) (moi,. . \ 0/6) {W309} T1368 and ’1‘630: (Ta-"TR (5.6., the compound of ia (A) wherein R3 WEBER} T63i and T635: CirTR one" the compound of Formula (A) wherein R3 = lllllfllll T623 and T636: ngn’l‘R (118., the compound of Formula (A) wherein R3 = {$03123 ized treprostinil (FREE) solution and treprostinil allryl ester formulations were administered (at l5 nniol/kg, or 6 ing/lrg TRE equivalent) to anaesthetisedmventilated rats (6—hour s) or to conscious rats by nose—only inhalation {24—hour studies). Blood and lung samples were collected at specified time points. ’l‘RE and treprostinil allryl ester concentrations in. blood plasma and lung tissue were measured by l-ll?l_.C/'l\4lS/l\/ls analysis, Anasthitmd\emildtwdRats {(313313} Male Sprague Dawley rats were anaesthetised and prepared with endotracheal tube for ventilation The right l vein was cannulated to facilitate blood collections.
Terminal lung samples x 'ere taken for analysis only 6 hours alter dosing Aeroneb® ne'bulizer and a controller (Aerogen, Galway, Ireland} were used to produce aerosol of a mass median aerodynamic diameter (MMAD) between ’25 um and 4 um and at a rate of (it mL/niin to provide an estimated pulmonary dose of {i rig/kg A SARw839/’AP Small Animal ator (CWE lne.,, Ardrnorei, PA) set up at ventilator tidal volume (VT) of 8 nil/leg, rate. of 90 breaths/min, was used to deliver nebulized test es of volume 250 ills. Systemic blood re (rnSAP), heart rate (HR)e and arterial oxygen saturation (SaOZ). Physiologic parameters were measured during normoxia (fraction of inspired oxygen [Frfigl 0.21, 82102 f: 96%} and for 2 to 3 hours during hypoxia (Fifi; = 6.10, 82103 ’4 50%).
Conscious Nose—Onl ' inhalationI {993%} Male Cprague Dawley rats were placed in restraining tubes and exposed to nebuliserl drugs Via the Jaeger—N‘l’ll NosemOnly Directedllow lnhalation Exposure System (CH Teclmologlesi od, NJ) (Figure El), Test es (6 rnL at specific concentration) were nehulised using the Aerone‘h nebuliser to deliver a predetennined estimated pulmonary dose" Blood and lung tissue samples were taken at selected times after nebulization of the drugs over a 24—hour period.
} Ventilated rats treated with zed lRE solution had the highest blood plasma concentration (Cmax) (3.5 ng/niL), which occurred immediately after dosing e 32, left). Measurable levels of TRE were not seen beyond 4 hours in tlie lilood plasma and by 6 hours in the lungs. In contrast, ventilated rats treated with nelmlized TPDQLNP had lower blood plasma ’l‘RlEL (Imax values, ranging from 0.2 rig/"ml; to 0.6 rig/ml; {table 15, Figure 329 left}. At 6 hours, treprostinil alkyl ester remained in the lung at levels that ranged from ltll) ng/g to 4th rig/g tissue ol’TRE equivalent (Figure 33}. Treprostinil detected in the lung was speculated to be generated due to treprostinil alleyl ester hydrolysis during sample preparation. When dosing with mieellar TF1). blood plasma levels of TRE were higher than with TPD lipid nanoparticle formulations, ting that nanoparticles play an additional role in slow—reh:ase effect (Figure 32, ison of left and right graphs}. In the 24—hour studies in rats dosed with 'l’PlLlipid nanoparticle formulations (nose—only inhalation), TREE.
Cniax was higher than in ventilated animals and showed close to first—order ntial decline. Blood plasma concentrations oi’TRE in rats that received dosing with C 1.»; and Cw treprostinil alkyl ester lipid nanopartiele formulations were maintained at greater than {ll rig/ml; for up to 24 hours," (levels corresponding to activity in acute hypoxia studies) (Figure 34, top). Lung levels of total lRE + 'l‘l’D were approximately 103 higher than plasma lRE and also exhibited ntial e in rats administered treprostinil alliyl ester lipid rticle formulations (Figure 34, ), ’l‘able it) further shows the pharmaeokineties of stinil in rats after dosing with the nly rn with the nehulized treprostinil alltyl ester lipid nanoparticle formulations at the estimated pulmonary dose of 6 gig/kg! Figure 35 further shows that release kinetics of treprostinil from inhaled C; (will formulations over 24 hours is independent of dose (nose only dosing). Time in figure 35 corresponds to the time after beginning of nehulization of a 6 mL suspension (nehulization period was 30 min, to so min). Figure 38 shows that animals treated with T5468 and T623 had a, al benefit (surviving beyond 200 minutes) compared with animals treated with free treprostinil or PBS). Specifically; Figure 38 shows the pulmonary arterial pressure in animals treated with various lipid nanoparticle lbrmulations, PBS and treprostinil. rmore, treatment with T568 and T623 showed little impact on systemic ynamies (Figure 39). Finally; treprostinil alkyl ester nanoparticle thrmulations were shown to convert sloly to treprostinil, providing consistent blood plasma levels with reduced peak values (Figure 4G).
Table 15 Plasma pharmacolrineties of treprostinil in ventilated rats after closing with nehulized treprostinil solution or formulated treprostinil alliyl ester suspension at an estimated pulmonary dose of 6 rig/kg Solution Lipid Nanoparticles Mieelles (T6305 T635 and T636) (T568, T63l and T623) T568 T631 11323 r630 tress ’1‘636 (CK-TR) (Cu-TR) (CWTR) (Cm—TR) (emits) item—rs} (Clara; Table 15. P1331113,pharmaeokineticg of tt‘ept‘oetinii in ventilated rats atter desing with nebulizetl treptostinii sniution or ibrmulated treprostinil alkyl ester suspension at an estimated ary dese 0H3 gig/kg AUC Mt; 9.72 €9.11 (1125* h/mL) Cine); (ng/inL) Trnax (h) ...................................................................................................................................................................................................................................
'I'a'bie 16. Pltarmaeekinetics et’tt‘epmstinii in rats after dosing with the. nese~0nly stystem with the nebulized treprostinil alkyl ester ibrmulations (T568, T531 and T623) at the estimated ary close 0156 ne’kg Cempmmd immediately post dose (IPD) (gig/kg) Lung apparent elliniination rate (lid) Plasma maximum concentration, (Cmax) IP13 4.03; (rig/mi) Plasma apparent elirninatien rate (if ) 0.30 (HA: itlt‘filfil inhaled TPDS are present in the lungs for an extended en and are aseeeiated with a slow. ned release efTRE into the bleed. This duratien ef activity is increased with 'I'PD formulated in lipid nanopartieies.
Formulatien in Begs EZQGSETZE 'I‘welve beagle dogs; of either sex were randomly assigned, to different inhaled doses 0f treprostinii in .E?’BS at the compound at Formula (A) wherein R3, = W)(€151er fermuiated in a lipid nanopartiele fermulatien (T623) that is ded in PBS (see "table 14), with beth given by nehttlizer. iatiens were nebulized with an Aeroneb nebulizer {MMADz 2.5—4 grin) delivered inte a 500 ml expansien chamber. Formulatiens were nehttlized fer 2 min at ventilator settings of 9t) nil/’hreath, l5 breaths/min (delivered volume = 2.7 L} and collected on a filter. Drug amount {pg} on the filter was measured by HPLC to calculate the concentration of drug delivered through the ventilator circuit (pg/L). {@318} Dosirnetry was performed in propotel—anesthetized dogs in which nehulized drugs were introduced into a mixing ol'iarnber interposed on the inspiratory limb of a canine respirator. Technical trials were performed before each, experiment to measure the concentration of drug (gig/L) delivered for each . The inhaled drug dose g) was calculated using the formula: inhaled Ding Dose (pg/leg} = Ding Cone. (rig/L) \’ Minute Ventilation (LI/min.) >< Time (min) / Body Weight (kg). After ry of the drugs, the dogs were disconnected from. the respirator and blood s were collected over a ’72 h period to measure the treprostinil plasma concentrations by HFLC/MS/MS. Clinical signs were monitored over this 72 hr. period. llltld‘lll‘i Use of the anesthetized, intohated and ventilated approach provided reproducibility between dogs to achieve the targeted inhaled dose for both treprostinil (5 i l and lo :l: 2 rig/kg) and (315:1le (7:1: I, 22 :t; l, 46 :l: l and 95 :l: l brig/kg)" At inhaled, doses ofS and lo rig/kg, treprostinil plasma Cinax values for dogs dosed with treprostinil (2"? and 5.9 ng/rnh tively) were. between lS-ZO fold higher compared to treprostinil levels achieved upon dosing with similar inhaled doses {7 and 22 gig/kg) of (Tm—TR in the T623 formulation {3.2 and 9.3 in respectively) (Figure 36), Furthermore, the plasma levels of treprostinil were sustained over a 48 hour period with inhalation of T623 but disappeared within a few hours following inhalation of treprostinil e 36). Coughing and rapid shallow breathing were absent during deliversr of treprostinil to anesthetized, ventilated, dogs but were present during the ry period. Dogs receiving T623 showed no signs of respiratory tion with inhaled. doses as high as 46 gig/kg.
(Iomparison of (316 Alkyl Ester Lipid Nanopartiele prostinil Formulation to (In and C14 Alkyl Ester Lipid Nanopartlele Treprostlnil Formulations {09329} Twelve 1oeagle dogs were exposed to inhaled treprostinil and three stinil allryl ester lipid nanopartiele formulations: €568 {dodeeyl~treprostinil, (Smith), 'l‘63l (tetradeeyl—treprostinih CHER) and T623 {hexadeeyhtreprostinil, C1531?) The components of each ation are provided in Table 14, above. {titlflll} Dosinietry was performed in propofohanesthetized, artificially ated dogs in which nehulized drugs were introduced into a mixing chamber interposed on the inspiratnry timh of the atnr. 'l‘eehnical trials were performed before each experiment measuring the eeneentratien of drug (rig/L) per breath, minute vei'itiiatien and time required tn achieve a targeted pulmonary dose. After recovery item the anesthesia, blood samples were collected over ‘72 h and plasma le rels of TRE measured by HPLC/T‘vile’h/lft‘s, Clinical signs , rapid shallow breathing, emesis and pale gums) were also tnenitnred. {@322} At a ed pulmonary dose of l8 itgfi'kg, elasnia levels of treprnstinil were highest for free treprostinii. (Crnax 5.9 : {3,6 rig/ml) immediately after dosing hut eerresponding Cniax values for C32—111, {Challis and C15u’l'R were 5m, 13- and 20~fold lower.
Plasma treprostinil was below the level of quantification by 4 h after inhaled free treprestinit, but was sustained 170148472 h after inhaled treprnstinil alkyl ester forinniatinns.
{M323} ependent increases in (Smart and AUC were seen with, inhaled Cmil‘R (6—90 g) with a preloriged presence oi‘treprestinil in the plasma fer up tn 72 h at higher deses. Adverse clinical signs were seen with free treprnstinil and Cuii‘R at a targeted dnse ef l8 itg/lrg, but not with C14~TR and i in the dese—respense study with Gus—TR, adverse clinical signs were seen in only l ring at a targeted nttln‘annary dose 0f 90 gag/kg {@324} Based upon this PK study in dogs, inhaled (LN—TR in a iiariepaiticle atinn prevides ned ce of treprestinil in the plasma and lewer side effect petential than inhaled free treprrzstinil at eernnarahle doses. ii.AikrtEster ’i‘remstinil Ferninlatien {titl325} '3‘748, a lipid nanepartiele {7.16 ethyl ester treprnstinil thrinidatien having the following components, was Characterized.
C16—TR Squalane DSPE-l’EG’Zk (inol %) {me} 0/6) {met ’34)) {903226} ment of the 'I‘olerabitity and Pharmacolrineties (PK) 0f 'l'reprostinil in Rats administerd T748 lipid rianopartiete ternmlatien {99327} To assess whether repeated dosing with inhaled (Sm—TR is well tnterated and alters FK, rats were expesed t0 C m—"l‘R for l 4—eonseeutive days. } 5 groups (n = 4 per group) of Sprague Dawley rats were exposed tn inhaled phnsphate hut‘fered saline (PBS) or 4 doses of (Ira—TR (0.6, 1.8, 6 and 18 rig/kg) given by nebulization in a nosemonly inhalation chamber. Cohorts of rats were studied after l, 7 and l4 daily inhaled doses of Gig—TR and blood samples were collected at l, 3, t3} and 24 hri, and lungs liar ’ested at 24 hr. alter the last dose of the drug. Concentrations of treprostinil and {316~TR. in the plasma and lungs were measured by l-lPLC/h/lS/h/lS. Body weights were recorded daily and organ weights (lungs, heart, liver} were measured 24 hr. alter the last drug dose. {09329} There were no tolerability issues or significant changes (relative to PBS) in body weights and organ weights after inhalation of {jig-TR for secutive days.
Increasing inhaled doses of C15~TR (0.6—l8 rig/leg) sed the plasma Crnax and AUC but this was not consistently affected upon repeated dosing. There was some variability in Alli: between days 1 and 14 within the different dosing groups with 2 of the r-‘l doses (1.8 and lit rig/kg) showing no difference, and the other 2 doses (0.6 and ti ug/kg) showing a 3- to 4—fold increase in AUC by day 14. The presence of CWTR was not ed in the plasma at any dose. However, relatively high concentrations of {Tm—TR (approximately l,0(l()—fold higher than plasma treprostinil) were found in the lungs. lnhaled Clsu'l‘R produced a doseudependent se in the concentration of {iiéwTR in the lungs, but this was not changed by repeated dosing for l4~consecutive days.
{MEN inhaled Car‘s—TR (0.648 rig/kg) was well tolerated with no evidence of hotly weight and organ weight change after dosing for l4 consecutive days.
Effect of C16 Alkyl Ester Lipid Nanoparticle Treprostinil Formulation on the Cough Reflex in Guinea Pigs {M831} in this study, the tussive s of d treprostinil and a lipid iianopaiticle formulation of the alltyl ester hexadecyl-treprostinil (CWTR), were studied in guinea pigs. 332l Three groups of male Dunkin E-lartley guinea pigs were placed in a whole body plethysmograph and exposed to aerosolized phosphate ed saline (PBS), TRE (l— 300 ug/rnl} and CWTR lipid nanomrticle lormulation 1748 {3G gig/ml}, respectively. T623 has the following components: {MESS} Aerosols were generated with an Ultra—Nob ?ro zer izer output €3.36 mtg/min.) that was mixed with inspired air delivered at a rate of 2 L/rnin. The PBS or drugs were delivered for l0 min" and the number of coughs recorded during and for 20 min. after the delivery. Coughs were detected by visual observations" plethysrnograph recordings and cough sounds.
{W334} Exposure to aerosolized PBS did not induce cough. TREE exposure did not consistently evoke cough in the animals tested until the exposure concentration was equal to or greater than 3t) ug/mL. The cough response was characterized by bouts of high trequency cough with d cough sounds compared to the l cough sound induced by citric acid or capsaicin. TREE at a zed concentration of 3t) gig/"mil produced consistent cough in 7 of 7 guinea pigs with l-4 cough bouts and a total number of coughs averaging 36 :: 9 coughs. in contrast, inhaled (Sm—TR lipid nanoparticle formulation at a nehuli'zed concentration of 30 ttg/ mi did not induce cough, no events, in 6 0th guinea pigs; {69335} The results in this study demonstrate that inhaled TRE induces cough in guinea pigs, the profile of which is Somewhat similar to that previously described (type ll coughs) with inhaled glandins in guinea. pigs (Maher and ia 2010). Gn the other hand, inhaled CWTR lipid nanoparticle formulation, did not induce cough and, suggests that this formulation may eliminate some of the local ad rerse side effects such as cough seen with inhaled TRE y in humans.
Exam le 14 — Ac 'lation ot’Trc rostlnll Berlvatlves {tlilfliltil ’l‘reprostinil or treprostinil ester derivatives {c.g., derivatized with alkyl or alkenyl groups at the carhoxylic acid moiety as ed in Example l) are acylated as follows. lillll337l The compound of Example 1 (0.05 mol) or treprostinil is dissolved in ill) mL of dichlorornethane at 0 0C. Din'iethylaminopyridine is added, {20 innit/a)n and then a solution of an acyl chloride RtiCOXTl (2.1 equivalents) at 0 "(I (wherein R is R5 or R6 as descrihed herein) is added to the compound of Example 1 or stinil‘ The solution is allowed to stir and warm to 23 0C over l hour, The on is monitored by thin layer chromatography, and when no futther change is observed, the reaction is quenched with NaHCOg {sat} and the quenched mixture is extracted with dichloromethane (3 s it} mi). The comhined organic extracts are dried over anhydrous sodium sulfate, and the solvent is removed under vacuum. to afford the crude product. Purification is ted by column chromatography on silica gel with 2% ol in dichloromethane.
} A general scheme for synthesis of the acyiated treprostinil~derivatives is shown below (R2 is described herein, for example as it or a linear or branched alkyl group): O O H DMAP H H H H5 6H 5 5 o >60 Y 9} Other acylalien techniques known in the art, including selective aeyfiatien 01'" each of the secondary alcohols, can be employed. in additien, R: can be selected such that the R2 group can be selectively remeved fimm the compound of Example 11 after aeylatien 0f the seeendary hydmxyl funetionallfies. Such pmteeting greup strategies are well knevm te these skilled in the art, and are described in, eg Peter GM, Wales and Theedma W.
, Greenefis l’rotective Groups fin Organic. Synthesis, 4th Edition, Wiley (2006:), which is ineerpereted herein by nce in its entirety far all es. l n exemplely scheme of such a process is shewn below: R2\O)% gees-4e: Synthesis (3f (gamma: o: o‘ {99341} To a solution of (lR,2R,3aS,9aS)~{{2,3,321,4,9,9a—hexal‘;ydre~2-hydmxy~l— [(3S)~3mhyili'oxyectyl}ll’l—benz{flinderi—S-yl]ox,y{aeetie acid (ti'epi'estinil) {78.l mg, 209 wholes) dissolved in l,¢‘l~Dioxane (2.0 mL) was added triethylamine (i'il‘EA) (98 pl, 700 OlCS, 3.5 equivalents), acetic anhydride (l66 ill... 1,768 nn'ieles, 8.8 lents), and a catalytic amount of dimethylarninepyridine (BM/KP}. The reactien mixture was allewed to shake at 40 CC for 72 hours. Solvent was removed under reduced pressure to yield a thick. colorless Oil. The crude material was dissolved in hexanes and washed with a selntion 0f saturated NaHCO;; (3 X 5 mL). The c layers were combined and solvent was renieved using a gentle strean'l of wanned N2 gas and gentle heat te yield a thick, ess eil. The crude material was dissolved in 29% "PrOll/Hexanes, passed thl‘engh a 0.45 nm e filter, and submitted to preparatory l-lPl_.-C pnrilicatien. Selvent was d lifem the d material. using a gentle stream of warmed N2 gas and gentle heat t0 yield a thick celerless oil. The pure material was suspended in ethyl lactate fer stnrage and was submitted to analytical HPLC for cencentralien determination. {99342} -OAC: 73% overall yield. The compound was alse terized by N‘wlR speetreseepy: {99343l 1H NMR (500 Ml-la, CDClg} 5 0.89 (t. .l 7.0 HZ, 6H), l.l7~l.32 (m, 33H), l.43—l.46 (in, 2H), 1.49—1.66 (in, 8H), l.89nl.93 (m, ’lH), l.99 (s, 3H), 2.06 (s, 3H), 2.30— 2.35 (in, 2h), 2.47 {d old, J 14.5 Hz, J 6.0 Hz, ll’l), 2.55 (d 0f (1, l l5.(3 Hz. J 6.0 Hz, 1H), 2.76 (d, of d, .l = 14.5 HZ, J = 6.0 Hz, lH), 2.90 (d of d, .l = l5.0 Hz, J = 6.0 Hz, lH), 4.l9 (t, .l 7.0 Hz, 2H), 4.62 (s, 2H), 4.73—4.74 (m, ll-l}, 4.87 (p, 3 6.9 Hz, lll), 6.63 (d, l so in, in), as: (d, .1 so in, in), 7.68 (t, 3 at) Hz, 3H) ppm; "C: NMR. (£25 MHZ, CDCl-g) 5 M2, 14.3, 2l.5 (2), 22.7, 22.9. 25.l, 26.9 (2), 28.3, 28.8, 29.4, 29.6, 29.7, 29.8, 29.9, 3L9, 32.1. 33.6, 33.7, 34.3, 37.8, 40.7. 49.0, 65.6, 66.2, 74.6, 79.0, lfi9.8, l2l.8, l26.4, l27.6,T407,155.1,l69.6,l7l.fl,l7l.lppm.
Exam le 15 wS "rathesis of tre restinil amide derivatives {09344} Treprestinil is available eemn’iereially, and can be synthesized, for example, by the metheds disclosed in US. Patent Nos {5,765,l t7 and 8,497,393. Synthesis of prostaglandln derivatives is described in US. Patent. Ne. 8l4. The disclosures OfU.S. l’atent Nes. 6,765,117; 8,497,393 and 4,668,814 are each incorporated by reference in their entireties for all purposes. {1111345} To a solutien of ('1R,2R,3aS,9aS)~[[2,3,3-21,4,9,9a—hexa11ydre~2~hydroxy~1— [(33311111110115001:ij 111—he117.{fjihden—S-yl}oxyjaeetie ae1d (i e.treprosti11i1) ('78 1 mg, 201} 1111101es) dissolved 111 1 ,4mDioxa11e (20 111L) was added triethylamihe (TEA) (98 11L 700 1111101es, 3.5 equivalents), a1ky1ar1'1i11e R} N112 (240 gametes, 1.2 equivalents), 211111 a 11011111011 (11’ P321301) (364 mg, 7110 1111101es, 3.5 emtivalehts) disseived, 111 2.09 1111, MeCN (acetonitrfie). {1111346} The reaction mixture was heated to 40 CC and ed to shake at approximately 100 11.1111 overnight. SO1V€HE was 1'e111oved under reduced pressure to yield the crude pmduet as a thick ve110w oil The product was extracted {1-1 extraction) from the C111 by repeated washings with 20°/0 "PrOH/Hexanes (3 x 3 . Soiveht was removed from the c extract using a gentle stream of warmed N3 gas and gehde heat to yield a thick, slightly ye1lovv oil. The crude material was dissolved 111 20% "PrOH/Hexanes? passed through a 0.45 1.1111 syringe filter, and submitted to atory {-11:31}: purification. Solvent was removed from the purified materiai using a geh‘de stream of warmed N2: gas and ge11t1e heat to y1'e1d a thick, e01or1ess 011, The pure material was suspended 111 ethyi lactate for sterage and was submitted to analytical HPLC for 1:011ee11tratie11 determination. {1111347} The g treprostinil amide derivatives of 111111. B were made by the synthesis scheme provided above. (Table 17) Percentage y1‘e1d is 11130 pmvided 111 heses.
R1\NJ\/o 01" I HOH!- 170111111111 (13) Frerastmil 1111111113 dertvahves Yietd Command ahhreviatieh Tabig 3.7. Tm mstinii amide derivafi‘vw R1 gmug) Yield C01npmmd abbreviatien N91: Ala—EE—TR—A determined Not (:S'Ejy'AEESEL-T'R-A determined Not iLeunEVEJI'RmA determined {WMSE {lg—"E‘R—A and (Egg—'i‘R—A were tarized by NMR spectmsmpy.
NMR Characterization of (Ti’i—‘ii‘R—A H\I\/R(\00 MHZ, CDtlzN09fltq )Hz, 6H), 1.17 (q,.l=l ZGHZ, 1H), 130— l.'70 (m, is H), 1814.83 (m, 1H), .93 (m, 1H), 2.20 (p, 3 4.8 mi lH), 2.22223 (hi, hi), .54 (m, 2H), 275—28261}, 2H), 3.16 (sextet, 3' = 4.6 Hz, 1H), 3.35 (q. .l = 7.0 Hz, 2H), 3.63 (s, 1H), 378-380(8-1, 1H), 4.48 (s, 2H) 6.55. (5, 1e), 8.7s (a, .t 7.5 Hz, lit), (:85 (4,3 7.5 Hz, 1H), 7.11 a, J 7.5 Hz, iii) ppm "C NMR (15 845-42., {3013"}(5 l42,14.3, 228 22.9, 25.6, 26.4, 267(2), 28.8, 29.2, 31.6, 32.1., 33.6, 33.8, 35d, 37.7, 39.2, 4-1.4, 41.6, 46.5, 52.4, 68.4, 72.3, "(3.4, 122.2, 126.8, 127.3, 143.2, 54.5, N387 ppm; l'iiRlViS (5381, 22:1 MeC‘N, MeOH, H20): m": = 47435717 ({M4H}*).
NMR Characterization of C i2—TR—A i-{RMS (1581, 212:1 MeCN, MeOI-i, H20): m/z 55845999 (gm-iii?) {96.34% Selected treprostihil derivatives were evaiuated for the use in a metered dese ii'ihaler (MDE). Four ester derivatives, dodeeyl—treprostiiiil (Cm—TR), tetradeoyl—tteprestihil (C,43111}, hexadecyi—treprostihi1 (Clmn'I‘R), and the branched Chain riohaiiyl—treprestiiiii (56:79— TR), and two amide derivatives, CJ5—TR—A and C12~TR~A (see Tahle l7) were tested for seluhiiity1h hydrothioroalkane propellants HEA l 34a and HEA22/ with added ethanol {MBSEEE 5 mg of each treprostinii compound was added in a glass . ic ai'riouht of ethanol was added by weight. An MD] valve was etimped to each bottle, and HFA pi‘epeiiarit added through the valve to the total volume of 5 mL. Compounds were allowed to dissolve for 24 hours at room ature. The formulatiehs were ed visually for solubility. The goal was to te the minimum ethanol tration required to solubilize each compound in propellant. {@351} Soluble sairiples presented as clear and colorless solutions. Less than soluble samples had a thin iiquidwapor ring of varieus density visible on the bottle surface at the liquidwapor interface. Non—soluble samples had white precipitate or crystals formed.
Ethanol was added as a solubility aid. As it can he seen from the solubility tables below (Table 18 and Table 19), compounds that were not soluble at 3% added ethanol became soluble at 10 or 13% added ethanol.
Table is lity chart Oi "film‘mmi prfldrugsmlHFA 1348 with added ethanol. i332?" WK 44m 6- 'E‘ahie 18. Selubiiity chart effl'epmstinii prodmgs in E-iFA-l 343 with added ethanei.
EH)H 1 {E (3/5 EEQH EtOH Etmi EtOH S — soluble; R — thin iiquidwapor ring is Visible; P — precipitate is e; 11/5: — net evaluated.
Tame 18. Solubility chart of trepmstinii derivatives in HFA~227 with added ethane}.
HFA-ZZ?’ EH}H i i}% EH}H EEGH EtflH Eti)H S — soluble; R — thin fiquidwapor ring is Visible; P — precipitate is e; 11/e — nut evaluated.
Amide Linked Tre restinil Nana article Formuiatien in Ventiiated Rats {99352} Maie Sprague Dav/Rey rats (N23) were anestl'ietized and prepared with endetraeheal tube fer 'ventiiation. "B"he right femorai vein was ated to: facilitate 'bieed tions. Rats were administered the lipid nanoparticle formulation T763, which has the following ents: (Cjz—TR—A, 45 mol %, squalane 45 mol 9/1), DSPE—PEG’ZQGS l0 mol 0/6). {@353} Aeroneb® nehulizer and a controller (Aerogen, Dangan, Galway, lreland) were used to produce aerosol ofa mass n'tedian aerodynamic diameter (MM/RD) between 2.5. nm and 4 nm and at a rate of ()gl ntL/min. {09:35:41 A EAR—830,1’AP Small Animal Ventilator (CWE 1116.9, Ardmore, PA) set up at ventilator tidal volume (VT) of 8 min/kg, rate of 99 'hreatltsr’inin was used to deliver nehttlized test articles of volume 300 hit. The targeted close was 6 tag/kg of 'l‘reprostinil equivalent. {99355} The plasma level of treprostinil were significantly lower than when nanopartiele formulation 17568 (Cu—TR. 40 me! %, squalane 4() mol %, ehohl’EGZk 10 mol %, DOPC 10 inol %), containing CWTR alleyl ester was used with the same dose. This suggests that the sion rate of the amide eroding is much slower than the rate for the ester prodrug of treprostinil. {@356} While the described invention has been described with nce to the specific embodiments thereof it should he understood by those skilled in the art that various changes may he made and equivalents may be substituted without departing from the true spirit and scope of the invention. in on, many ations may he made to adopt a particular situation, material, ition of matter, process, process step or steps, to the ive spirit. and scope of the described invention, All such modifications are intended to be within the scope of the claims appended hereto. {@3357} Patents, patent applications, patent application ations, journal articles and protocols referenced herein are incorporated by reference in their entireties, for all purposes.
I/

Claims (46)

WE CLAIM :
1. A compound of Formula (II): Formula (II) wherein R1 is O; R2 is ecyl, pentadecyl, hexadecyl, ecyl or octadecyl; and n is 1.
2. The compound of claim 1, wherein R2 is tetradecyl.
3. The compound of claim 2, wherein R2 is linear tetradecyl.
4. The compound of claim 1, wherein R2 is pentadecyl.
5. The compound of claim 4, wherein R2 is linear pentadecyl.
6. The compound of claim 1, wherein R2 is hexadecyl.
7. The compound of claim 6, wherein R2 is linear hexadecyl.
8. The compound of claim 1, wherein R2 is heptadecyl.
9. The compound of claim 8, wherein R2 is linear heptadecyl.
10. The compound of claim 1, wherein R2 is octadecyl.
11. The compound of claim 10, n R2 is linear octadecyl.
12. A composition comprising a compound of any one of claims 1-11.
13. The ition of claim 12, further comprising a PEGylated lipid.
14. The composition of claim 13, wherein the PEGylated lipid comprises PEG400, PEG500, 0, PEG2000, PEG3000, PEG4000 or PEG5000.
15. The composition of claim 13 or claim 14, wherein the PEGylated lipid comprises PEG2000.
16. The composition of any one of claims 13-15, wherein the lipid portion of the PEGylated lipid is cholesterol.
17. The composition of any one of claims 13-15, wherein the lipid portion of the ted lipid is a phospholipid.
18. The composition of any one of claims 13-15, wherein the lipid portion of the PEGylated lipid is distearoyl phosphatidylethanolamine (DSPE), dimyristoyl phosphoethanolamine , or distearoyl glycerol (DSG).
19. The composition of claim 18, wherein the lipid portion of the PEGylated lipid is distearoyl phosphatidylethanolamine (DSPE).
20. The composition of any one of claims 13-15, wherein the PEGylated lipid is cholesterol- PEG2000, DSPE-PEG1000 or DSG-PEG2000.
21. The composition of claim 18 or claim 19, wherein the PEGylated lipid is DSPEPEG2000.
22. The ition of any one of claims 13-21, further comprising a hydrophobic additive.
23. The ition of claim 22, wherein the hydrophobic additive is a terpene.
24. The composition of claim 23, wherein the terpene is squalane.
25. The composition of any one of claims 12-24, wherein the composition is in the form of a dry powder.
26. Use of a compound of any one of claims 1-11, or a composition of any one of claims 12- 25, for the manufacture of a medicament effective in the treatment of pulmonary hypertension (PH) in a patient in need thereof.
27. The use of claim 26, wherein the medicament is formulated for ary stration to the patient.
28. The use of claim 27, wherein pulmonary administration comprises administration via a metered dose inhaler, a dry powder inhaler, or a nebulizer.
29. The use of claim 27 or 28, wherein the pulmonary administration comprises stration via a nebulizer.
30. The use of claim 27 or 28, wherein the pulmonary administration comprises administration via a dry powder r.
31. The use of claim 27, wherein the composition of claim 25 is used for the cture of the medicament, the medicament is formulated for the ary administration to the patient, and the pulmonary administration comprises administration via a dry powder inhaler.
32. The use of claim 26, wherein the medicament is formulated for oral, nasal, intravenous or subcutaneous administration.
33. The use of any one of claims 26-32, wherein the patient is a World Health Organization (WHO) Group I PH patient, WHO Group II PH patient, WHO Group III PH patient, WHO Group IV PH patient, or WHO Group V PH patient.
34. The use of claim 33, wherein the patient is a WHO Group I PH patient.
35. The use of claim 33, wherein the patient is a WHO Group III PH patient.
36. The use of any one of claims 26-32, wherein the pulmonary hypertension is pulmonary arterial ension (PAH).
37. The use of claim 36, wherein the patient is a class I PAH patient, a class II PAH patient, a class III PAH patient, or a class IV PAH patient, as categorized by the New York Heart Association (NYHA).
38. The use of any one of claims 26-32, wherein the pulmonary hypertension is chronic thromboembolic pulmonary hypertension.
39. The use of any one of claims 26-32, wherein the pulmonary hypertension is portopulmonary hypertension (PPH).
40. The use of any one of claims 26-32, wherein the ary hypertension is idiopathic pulmonary arterial hypertension.
41. The use of any one of claims 26-32, wherein the ary hypertension is familial pulmonary arterial hypertension.
42. The use of any one of claims 26-32 and 35, wherein the pulmonary hypertension is ated with interstitial lung disease.
43. The use of any one of claims 26-42, wherein the medicament is formulated to be administered once daily.
44. The use of any one of claims 26-42, n the medicament is formulated to be administered twice daily.
45. The use of any one of claims 26-42, wherein the medicament is formulated to be administered three or more times daily.
46. Use of a compound of any one of claims 1-11, or a composition of any one of claims 12- 25, for the manufacture of a medicament effective in the treatment of pulmonary fibrosis in a patient in need thereof. Insmed Incorporated By the Attorneys for the Applicant SPRUSON & FERGUSON Per: ,,,,,,,, mom 00“ mm om mm om (am; 5%,) gym
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US201361895680P 2013-10-25 2013-10-25
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US201461950967P 2014-03-11 2014-03-11
US61/950,967 2014-03-11
US201462028758P 2014-07-24 2014-07-24
US62/028,758 2014-07-24
US201462042123P 2014-08-26 2014-08-26
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