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USRE39264E1 - Pharmaceutical combination - Google Patents

Pharmaceutical combination Download PDF

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USRE39264E1
USRE39264E1 US10/771,259 US77125904A USRE39264E US RE39264 E1 USRE39264 E1 US RE39264E1 US 77125904 A US77125904 A US 77125904A US RE39264 E USRE39264 E US RE39264E
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hydrocortisone
foscarnet
glucocorticoid
pharmaceutical composition
ester
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Johan Harmenberg
Ann Harriet Margareta Kristofferson
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Medivir AB
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Medivir AB
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
    • A61K31/519—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
    • A61K31/52—Purines, e.g. adenine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/0012—Galenical forms characterised by the site of application
    • A61K9/0014—Skin, i.e. galenical aspects of topical compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/57—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/58—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/66—Phosphorus compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/66—Phosphorus compounds
    • A61K31/675—Phosphorus compounds having nitrogen as a ring hetero atom, e.g. pyridoxal phosphate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/70—Carbohydrates; Sugars; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00—Drugs for disorders of the senses
    • A61P27/02—Ophthalmic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12—Antivirals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12—Antivirals
    • A61P31/20—Antivirals for DNA viruses
    • A61P31/22—Antivirals for DNA viruses for herpes viruses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00

Definitions

  • the present invention relates to a pharmaceutical composition for topical administration suitable for the prophylaxis and treatment of herpesvirus infections.
  • the pharmaceutical composition comprises a combination of an antiviral agent and an antiinflammatory agent and can preferably be used for the treatment of recurrent herpesvirus infections.
  • Herpesvirus infections in humans can be caused by different human herpesviruses, the most common being herpes simplex virus and varicella-zoster virus. There are also many animal herpesviruses.
  • herpes simplex virus or varicella-zoster virus Following a primary infection with herpes simplex virus or varicella-zoster virus, the virus establishes latency in the sensory nerve cells for the rest of the patient's life and can subsequently be reactivated repeatedly. Following a reactivation in the nerve cell, the virus is transported through the nerves to the skin and subsequently a lesion develops.
  • herpesvirus infection One characteristic of herpesvirus infection is the inflammation which follows immediately upon an outbreak of virus replication. The inflammation contributes to all symptoms associated with herpesvirus recurrence including redness, swelling, itching and pain as well as lesions.
  • Herpes simplex viruses can be divided into two serotypes, HSV type 1 (HSV-1) and type 2 (HSV-2), the clinical manifestations of which range from benign self-limiting orofacial and genital infections to potentially life threatening conditions such as encephalitis and generalized neonatal infections.
  • Oral-facial HSV infections are primarily caused by HSV-1. Following a primary infection in childhood the virus becomes latent. After reactivation a recurrent oral-facial HSV infection develops, which is more commonly known as a cold sore. About half of the patients experience prodromal symptoms such as pain, burning or itching at the site of the subsequent lesions. The condition is generally rapidly self-limiting and a typical episode will heal in around 10 days from the first symptoms. Viral replication in the lip is initiated early and maximum virus load is attained 24 hours after the onset of the reactivation. The virus concentration is then dramatically reduced and typically virus cannot be isolated 70-80 hours after the onset.
  • Genital HSV infections are most often caused by HSV-2 and following the primary infection the virus will latently infect sensory or autonomic ganglions. Reactivation will produce the local recurrent lesions on or near the genitals that are characteristic of the herpes infection.
  • VZV varicella-zoster virus
  • HSV and VZV may, in addition to mucous or cutaneous manifestations, also cause keratitis in the eyes. This condition is also recurrent and may cause blindness.
  • Foscarnet that is the hexahydrate of the trisodium salt of phosphonoformic acid or sodium phosphonoformate hexahydrate
  • acyclovir are well-known antiviral compounds, which as topical formulations have been extensively tested against recurrent herpes simplex virus infections in clinical trials with only a moderate degree of success.
  • Acyclovir has, in addition, been tested as an oral formulation against recurrent HSV infections with significant but limited clinical effect if used after the appearance of symptoms. As a result of such a treatment the healing time will be shortened by no more than approximately one day.
  • the inhibitory effect of foscarnet, as well as that of acyclovir, against herpes viruses in vitro is, however, high.
  • Standard-dose acyclovir shows little effect against VZV infections in the clinic.
  • High-dose acyclovir shows significant but limited effect on zoster lesions if treatment is initiated within 72 hours from the appearance of the first symptoms.
  • antiviral substances which have been used topically and which exhibit an inhibitory effect against HSV in vitro, are for example adenine arabinoside (ara-A, vidarabine), arabinosyladenine-monophosphate (ara-AMP), lobucavir (bishydroxymethylcyclobutylguanine, BHCG), brivudine (bromovinyldeoxyuridine, BVDU), desciclovir, famciclovir, cidofovir (HPMPC, GS504), idoxuridine, netivudine (zonavir, BW882C87), penciclovir, PAA (phosphonoacetate), PFA (phosphonoformate), sorivudine (brovavir, BV-araU), trifluridin (trifluorothymidine, TFT), tromantadine, valacyclovir, virend, 1-docosanol (lidakol), 348U87, 2242 (2-
  • Clinical primary infections with human herpes simplex viruses differ in a number of important aspects from subsequently reactivated infections.
  • the viral shedding period is longer in the primary infection (about 10 days in labial and 3 weeks in genital infection) compared with reactivated infection (3-4 days for both labial and genital infections).
  • the lesion will heal in a few days while in the case of reactivated infections, the inflammation continues after viral replication has ceased and the clinical symptoms will remain for another week.
  • AU 636 255 refers to topical treatment of for instance herpes simplex infections by means of a composition comprising an antiviral pentosan polysulphate and an antiinflammatory or antioxidant drug.
  • the antiinflanmmatory drugs are different salicylates or bufexamal, that is NSAIDs.
  • U.S. Pat. No. 3,317,384 discloses a combination of a glucocorticoid and an antiviral nucleoside, ara-C or ara-A or analogues thereof, for topical pharmaceutical applications, mainly for ocular administration.
  • the systemic toxicity of the antiviral compounds is too high to allow for an application to the skin or mucous membrane.
  • recurrent herpesvirus infections can be treated by topical administration of a combination of a topically acceptable antiviral substance and an antiinflammatory glucocorticoid.
  • the invention relates to a pharmaceutical composition for topical administration comprising a combination of a topically acceptable antiviral substance and an antiinflammatory glucocorticoid in a pharmaceutically acceptable carrier.
  • Antiviral substances suitable for the purposes of the present invention are topically acceptable antiviral compounds which in addition to being specific inhibitors of herpesvirus multiplication, also are active after topical administration and in addition pharmaceutically acceptable for topical administration. This means that the toxicity of the antivirals must be sufficiently low to allow for a continuous contact with the human body and in particular with the skin and mucous membranes.
  • Antiviral substances can be selected from the group comprising compounds acting on viral DNA polymerase, such as nucleoside analogues after phosphorylation to their triphosphate forms; phospho no formic and phospho no acetic acids and their analogues; and other antiviral compounds having a different mechanism of action.
  • antiviral substances which can be used in the combination of the invention can be mentioned acyclovir (ACV), ACV-phosphonate, brivudine (bromovinyldeoxyuridine, BVDU), carbocyclic BVDU, buciclovir, CDG (carbocyclic 2′-deoxyguanosine), cidofovir (HPMPC, GS504), cyclic HPMPC, desciclovir, edoxudine, famciclovir, ganciclovir (GCY), GCY-phosphonate, genivir (DIP-253), H2G (9-[4-hydroxy-2-(hydroxymethyl)butyl]guanine), HPMPA, lobucavir (bishydroxymethylcyclobutylguanine, BHCG), netivudine (zonavir, BW882C87), penciclovir, PMEA (9-(2-phosphonylmethoxy-ethyl)adenine), PMEA
  • Preferred antiviral substances are those with specific antiviral activity such as herpes specific nucleoside analogues which are preferentially phosphorylated in virus-infected cells and have very low or non-existent incorporation into cellular DNA as well as other compounds with specific antiviral activity.
  • Acyclovir for instance, has a selectivity ratio for the inhibitory activity against HSV-1 in vitro of about 2000.
  • brivudine cidofovir
  • desciclovir desciclovir
  • famciclovir ganciclovir
  • HOE 961 lobucavir
  • netivudine penciclovir
  • PMEA sorivudine
  • valacyclovir 2242
  • BPFA BPFA
  • PFA PAA
  • foscarnet Especially preferred are foscarnet and acyclovir.
  • PFA refers in addition to foscarnet, that is the hexahydrate of the trisodium salt of phosphonoformaic acid, also to other pharmaceutically acceptable salts, esters or other derivatives of phosphonoformic acid in hydrated or non hydrated form.
  • the stated antiviral substances also refer to salts, esters and other derivatives thereof, whenever applicable.
  • topically active antiviral substances such as the nucleoside analogues idoxuridine and trifluorothymidine, adenine arabinoside (ara-A, vidarabine) and arabinosyladenine-monophosphate (ara-AMP), which can be used for the treatment of herpetic conditions in the eye are not contemplated within the scope of this invention as having too high a toxicity for application to the skin and mucous membrane. This toxicity is due to the lack of antiviral specificity, that is said compounds are phosphorylated in uninfected as well as infected cells and incorporated into cellular DNA.
  • the antiinflammatory glucocorticoid suitable for the purposes of the present invention can be a naturally occurring or a synthetic topical glucocorticoid that is glucocorticosteroid.
  • the glucocorticoids can be selected from any of the Group I-III glucocorticoids, according to a classification system for topical glucocorticoids used in the Nordic countries, corresponding to less potent, low or moderately potent glucocorticoids.
  • glucocorticosteroids examples include alclometasone, amicinonide, beclomethasone, betamethasone, budesonide, ciclesonide, clobetasone, clocortolone, cloprednol, cortison, desonide, desoximethasone, dexamethasone, diflorosane, diflucortolone, difluprednate, fludrocortisone, fludroxycortid, flumethasone, flunisolide, fluocinolone acetonide, fluocinonide, fluocortin, fluocortolone, fluprednidene, fluticasone, halcinonide, halobetasol, halometasone, hydrocortisone, methylprednisolone, mometasone, paramethasone, prednisolone, prednicarbate, prednisone, pre
  • Preferred glucocorticoids are hydrocortisone, alclometasone, desonide, fluprednidene, flumethasone, hydrocortisone butyrate, clobetasone, triamcinolone acetonide, betamethasone, budesonide, desoximethasone, diflorosane, fluocinolone, fluocortolone, fluticasone, methylprednisolone aceponate, mometasone and rofleponide.
  • a preferred embodiment of the invention is a pharmaceutical composition comprising foscarnet and hydrocortisone; in another embodiment the pharmaceutical compositon comprises foscarnet and budesonide.
  • Still another preferred embodiment of the invention is a pharmaceutical composition comprising acyclovir and hydrocortisone; in another embodiment the pharmaceutical composition comprises acyclovir and fluticasone.
  • the carrier system should be stable and pharmaceutically and cosmetically acceptable. It should also enable incorporation of sufficient amounts of the active ingredients to give the proper penetration characteristics. In addition to conventional ingredients in creams, lotions, gels or ointments, compositions based on phospholipids, including sphingolipids can be advantageous.
  • a pharmaceutical composition of the invention can be used for the prophylaxis and/or treatment of herpesvirus infections in mammals including man.
  • the composition is used for the treatment of recurrent herpesvirus infections.
  • the curative treatment of recurrent infection should take place during the virus replication, preferably from the first appearance of prodromal symptoms and for a period of 3-4 days at least. It might be of advantage to apply the formulation during the whole episode, every second hour or ad lib. Lesions should be treated the same way.
  • the frequency of application will be of the order of 1-10 applications per day, preferably every 8 hour, until healing is completed.
  • Prophylactic treatment could be an alternative in patients with regularly recurrent disease. In this case the formulation should be applied to the area where a recurrence is expected before the appearance of the first symptoms.
  • compositions of the invention can be used to treat all types of herpesvirus, as well as other viruses, which are inhibited by the antiviral substance and which replicate in the skin or the mucous membrane.
  • viruses can be mentioned HSV-1, HSV-2 and VZV.
  • compositions for topical administration are preferably creams, lotions, gels, ointments or drops.
  • the pharmaceutical compositions can be incorporated into plasters or patches to be applied to the skin of a patient to be treated for herpes infections or into pens or sticks for application to the skin or mucous membranes.
  • Topical administration refers in this context to dermal or mucosal administration to the skin or mucous membrane.
  • glucocorticoids Due to the herpesvirus-stimulating effects of glucocorticoids, care must be taken to define the optimal dose of the respective components. Too high a dose of the glucocorticoid might stimulate virus multiplication to an extent that can not be inhibited by the antiviral substance. With too low a dose the desired reduction of the symptoms of inflammation might not be achieved.
  • the mutual relationship between the two active substances will be different for different combinations of substances.
  • the relative amount of the antiviral substance in a pharmaceutical composition according to the present invention can be within the range of 0.1-10% (w/w), preferably 1-5% (w/w).
  • the antiinflammatory glucocorticoid concentration can be within the range of 0.005-3% (w/w) depending on the potency of the respective compound.
  • a pharmaceutical composition containing a combination of foscarnet and hydrocortisone could preferably comprise 0.3-3% foscarnet and 0.25-1% hydrocortisone.
  • a corresponding composition containing acyclovir and hydrocortisone preferably comprises 1-5% acyclovir and 0.25-1% hydrocortisone.
  • the invention also refers to the use of a combination of a topically acceptable antiviral substance and an antiinflammatory glucocorticoid for the manufacture of a medicament for topical treatment of recurrent herpesvirus infections in mammals including man.
  • the present invention refers to a method of prophylactic and/or curative treatment of herpesvirus infections of the skin or mucous membranes in mammals including man comprising topical administration, in combination or in sequence, of a therapeutically effective dose of a topically acceptable antiviral substance and of an antiinflammatory glucocorticoid.
  • compositions of the present invention can also be used as a cosmetic composition to improve the appearance of a human suffering from an oral-facial HSV infection by application of an effective amount of said compositions to the lesions or rash.
  • topical administration of the pharmaceutical compositions of the present invention have resulted in a significantly better pharmacological effect in the treatment of recurrent herpes infections than the administration of conventional topical compositions comprising an antiviral compound as the only active substance. This has been determined in biological tests by means of a new animal model described below.
  • Foscarnet cream was prepared as described by Alenius, S. et al., “Therapeutic effects of foscarnet sodium and acyclovir on cutaneous infections due to herpes simplex virus type 1 in guinea pigs”, J. Inf. Dis. 1982; 145:569-73).
  • Foscarnet Cream with a content of 3% foscarnet and the composition as stated below, is referred to as Foscarnet Cream:
  • Amount (mg) Trisodium phosphonoformate hexahydrate 30 Polyoxyethylene fatty acid ester 44 Cetyl alcohol 20 Stearic acid 20 Paraffin liquid 20 Propylene glycol 20 Glycerol 15 Methyl p-hydroxybenzoate 0.7 Propyl p-hydroxybenzoate 0.3 Water ad 1000
  • the cream base without foscarnet is used as the placebo cream.
  • To the placebo cream can be added foscarnet in an amount of 3-30 mg as well as micronized hydrocortisone in an amount of 2.5-10 mg for the preparation of a cream of 0.3-3% foscarnet and 0.25-1% hydrocortisone.
  • This cream is commercially available as Hydrokortison kräm 1% ACO, Kabi Pharmacia AB, Sweden.
  • This cream is commercially available as Zovirax® Creme 5% from Wellcome GmbH, Germany.
  • a primary herpes infection is characterized by a rapid and comparatively long-lasting phase of viral replication and a slower and less pronounced immune response causing only a low degree of inflammation.
  • shedding of virus continues for around 20 days, while in a recurrent infection virus shedding ceases after only 3 or 4 days (Whitley, R. J. and Gnann, J. W. in The Human Herpesviruses, Ed. Roizman et al., 1993).
  • the common recurrent HSV and VZV infections are characterized by a strong and rapid immune response and inflammation causing clinical symptoms such as pain, redness and swelling.
  • the immune response also rapidly limits the local virus replication, and typically 3-4 days after the first symptoms virus can no longer be isolated from lesions.
  • Said model includes the induction of immune response in the animal before the administration of the composition to be tested.
  • virus is inoculated in the neck of a mouse.
  • the virus will then be transported through the nerves to the skin of the corresponding ear. This transport will take approximately 3-4 days.
  • day 2 the animals are given immune cells with reactivity against the infecting virus.
  • the virus arrives at the ear, the animal instantly mobilises an effective immune response against the virus, thus mimicking the clinical situation of a recurrent herpes infection.
  • Human HSV-1 (2 ⁇ 10 5 plaque forming units, pfu, strain C42 or SC16) is inoculated into the neck of groups of 10-18 female in-bred Balb/C mice (16-18 g) as described by Kristofferson et al. (“Limited efficacy of inhibitors of herpes simplex virus DNA synthesis in murine models of recrudescent disease”, J. Gen. Virol. 1988; 69:1157-66). The development of zosteriform spread infection is then recorded by daily inspection of the occurrence of lesions on the pinna and swelling of the ear.
  • the lesions are scored on a scale from 0 to 4 as follows:
  • Swelling of the ear was assessed by measuring the thickness of the ears using an engineers micrometer, as described by Kristofferson et al.
  • the titre of infectious virus in the ear was measured as described by Kristofferson et al, except that BHK (baby hamster kidney) cells were used in addition.
  • lymph node cells On day 2 after infection the animals are given adoptive transfer of immunity, ATI, against HSV-1 by intravenous injection of 2 ⁇ 10 7 lymph node cells into the tail. Said lymph node cells had been prepared by injecting HSV-1 (10 5 pfu, strain C42 or strain SC16) into the pinna of both ears of anaesthetisized female Balb/C mice (16-18 g). Seven days post infection the animals are sacrificed by cervical dislocation, the draining lymph nodes are removed, and a suspension of lymph node cells in phosphate buffered saline is prepared by means of a micro mesh.
  • ATI decreases the virus titers in the ear of the infected animals, as well as the duration of virus shedding.
  • ear swelling and lesion score of the ears is increased by ATI. Swelling is believed to correspond to inflammation and it is apparent that ATI worsens inflammation and lesion score even though virus is much more rapidly cleared.
  • composition to be tested as to activity against recurrent herpes is distributed equally in an amount of approximately 25 mg of cream on each side of the ear, every 8 h.
  • Budesonide and lidocaine were selected for testing as examples of antiinflammatory compounds.
  • the foscarnet cream Foscarnet Cream was prepared as described in Example 1. The cream base without drug was used as placebo.
  • the cream base described above was also mixed with budesonide cream (0.025%, Preferid®, Gist-Brocades, The Netherlands) to obtain suitable concentrations for treatment.
  • budesonide cream 0.025%, Preferid®, Gist-Brocades, The Netherlands
  • the formulation resulting from a mixing of the creams is described in Example 2.
  • a lidocaine cream (2%, Xylocain®, Astra AB, Sweden) was also mixed with the foscarnet cream and the resulting formulation of foscarnet (1.5%) and lidocaine (1%) is described in Comparative Example 3.
  • Foscarnet the two antiinflammatory substances, as well as the two combination creams were tested in the animal model described, with ten animals in each group.
  • the respective cream was applied day 4-7 after infection three times daily.
  • the lesion score and ear thickness were recorded daily on days 4-12, 15 and 21 after infection and the mean cumulative values ⁇ standard deviation calculated for said period.
  • Budesonide cream alone decreased the cumulative ear thickness to 58% of placebo-treated animals, while lidocaine cream had no effect.
  • the combination of foscarnet and budesonide reduced ear thickness to 45%, compared to placebo.
  • the combination of foscarnet and lidocaine had no effect on ear thickness or lesion score.
  • Treatment with a topical formulation of budesonide increased the virus titers in the ears on day 7 and day 9 after infection between 100- and 1000-fold as compared with placebo treatment (FIG. 1 ). More specifically, the virus titers in the ears were dramatically reduced when the combination was used compared with placebo or budesonide cream (FIG. 1 ). No virus could be detected in the animals treated with the combination of foscarnet and budensonide on day 7 after infection.
  • This experiment was performed to extend the results obtained in Experiment 1 using the same animal model with ten animals in each group. Mixing of foscarnet and an antiinflammatory substance into one composition might not result in a formulation having optimal penetration properties for the two active compounds.
  • the animals were treated with two different formulations 2 hours apart. First the foscarnet cream was applied and 2 hours later the antiinflammatory formulation. This was repeated three times daily during the treatment period (day 4-7 after infection).
  • foscarnet 3%, Foscarnet Cream
  • budesonide 0.025%, Preferid®, Gist-Brocades, The Netherlands
  • hydrocortisone 1%, Hydrokortison kräm 1% ACO, Kabi Pharmacia AB, Sweden
  • lidocaine 5%, Xylocaine®, Astra AB
  • ketoprofen 2.5%, Oruvail®, Rhone-Poulenc Rorer NS, Denmark
  • Foscarnet cream alone resulted in a small reduction in both lesion score and ear thickness in comparison to placebo which was not statistically significant.
  • Foscarnet cream in combination with budesonide cream or with hydrocortisone cream was clearly superior to both foscarnet cream alone and placebo cream.
  • Foscarnet cream in combination with budesonide cream reduced lesion score to 46% and ear thickness to 59% compared to placebo treated animals.
  • Foscarnet cream in combination with hydrocortisone cream reduced lesion score to 44% and ear thickness to 53% compared to placebo treated animals.
  • Foscarnet cream in combination with lidocaine cream worsened the lesion score and ear thickness to 189 and 146% of placebo-treated animals, respectively.
  • Foscarnet cream in combination with ketoprofen cream had no effect on either lesion score or ear thickness.
  • Two other NSAIDs that is indomethacin (1%, Amuno® Gel, MSD Sharp & Dohme GmbH, Germany) and diclofenac (1.16%, Voltaren® Emulgel, Ciba-Geigy, GmbH, Germany) were also tested but the results could not be interpreted due to toxic side-effects. These side-effects were probably caused by systemic absorption of the NSAIDs in too high amounts.
  • budesonide cream strongly increased the virus load in the animal model above compared with placebo (FIG. 1 ). This effect of budesonide is not beneficial for the treatment of herpes lesions.
  • the virus titres in the ears of treated animals on day 7 after infection are shown in Table 3.
  • Foscarnet cream alone reduced the virus titre on day 7 about tenfold compared to placebo-treated animals.
  • Foscarnet cream in combination with hydrocortisone, ketoprofen, or lidocaine cream resulted in virus titres even lower than those in foscarnet-treated animals.
  • Foscarnet cream in combination with budesonide resulted in virus titres on day 7 slightly higher than those of animals treated with foscarnet alone, but still nearly ten-fold lower than placebo-treated animals.
  • results show that a combination of foscarnet with a glucocorticoid is clearly superior to combinations of foscarnet with a local anaesthetic or with ketoprofen as a non-steroid anti-inflammatory drug (NSAID) with regard to inflammation (as measured by ear thickness) and lesion score.
  • NSAID non-steroid anti-inflammatory drug
  • results also show that a foscarnet combination including hydrocortisone—a less potent glucocorticoid—was superior to foscarnet combinations including budesonide—a more potent glucocorticoid—in terms of all the measured parameters, that is cumulative lesion score, cumulative ear thickness and mean virus titres.
  • FIG. 3 shows the mean ear thickness on days 4-21 p.i. after treatment with placebo, 3% foscarnet or 1.5% foscarnet plus 0.5% hydrocortisone on days 4-7 p.i.
  • the figure shows that foscarnet in combination with hydrocortisone was clearly superior in reducing the ear thickness compared to foscarnet alone or placebo.

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US20070036831A1 (en) * 2005-08-09 2007-02-15 Nanobio Corporation Nanoemulsion compositions having anti-inflammatory activity
US20070054834A1 (en) * 2005-04-11 2007-03-08 Nanobio Corporation Quaternary ammonium halides for treatment of infectious conditions
US20070073688A1 (en) * 2005-09-29 2007-03-29 Fry Jared S Methods, systems, and computer program products for automatically associating data with a resource as metadata based on a characteristic of the resource
US20090270429A1 (en) * 2008-03-17 2009-10-29 Medivir Ab Antiviral formulation
US7655252B2 (en) 1999-04-28 2010-02-02 The Regents Of The University Of Michigan Antimicrobial nanoemulsion compositions and methods
US20110065655A1 (en) * 2009-09-17 2011-03-17 Karry Whitten Therapeutic composition to treat lesions caused by herpes simplex virus
WO2014159731A1 (fr) * 2013-03-13 2014-10-02 Nal Pharmaceuticals, Ltd Composition antivirale topique contenant un anesthésique local et son procédé de fabrication
US9801842B2 (en) 2007-05-02 2017-10-31 The Regents Of The University Of Michigan Nanoemulsion therapeutic compositions and methods of using the same
US11246872B2 (en) 2019-06-14 2022-02-15 Propella Therapeutics, Inc. Topical acyclovir formulations and uses thereof
WO2024044051A1 (fr) * 2022-08-22 2024-02-29 Ford Jacques Composition de chlorhexidine et son procédé d'utilisation

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US7223387B2 (en) 1998-11-18 2007-05-29 Medivir Ab Antiviral formulations comprising propylene glycol and an isopropyl alkanoic acid ester
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US20040023935A1 (en) * 2002-08-02 2004-02-05 Dey, L.P. Inhalation compositions, methods of use thereof, and process for preparation of same
US20040109826A1 (en) * 2002-12-06 2004-06-10 Dey, L.P. Stabilized albuterol compositions and method of preparation thereof
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WO2005051931A2 (fr) * 2003-11-26 2005-06-09 Ranbaxy Laboratories Limited Inhibiteurs de la phosphodiestérase
US7618950B2 (en) * 2004-07-07 2009-11-17 Arigen Pharmaceuticals, Inc. Method for treatment and prevention of herpes zoster by topical application
WO2006105216A1 (fr) * 2005-03-30 2006-10-05 Novartis Ag Famciclovir pour le traitement de l'herpes labial recurrent pendant une periode d'un jour
WO2007031838A1 (fr) 2005-09-16 2007-03-22 Ranbaxy Laboratories Limited Pyrazolo[3,4-b]pyridines substituees en tant qu'inhibiteurs de la phosphodiesterase
EP1948164A1 (fr) 2005-10-19 2008-07-30 Ranbaxy Laboratories, Ltd. Compositions pharmaceutiques d'antagonistes du recepteur muscarinique
RU2008119322A (ru) * 2005-10-19 2009-11-27 Рэнбакси Лабораториз Лимитед (In) Композиции ингибиторов фосфодиэстеразы iv типа
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US7767216B2 (en) 1999-04-28 2010-08-03 The Regents Of The University Of Michigan Antimicrobial compositions and methods of use
US8771731B2 (en) 1999-04-28 2014-07-08 The Regents Of The University Of Michigan Antimicrobial nanoemulsion compositions and methods
US20040043041A1 (en) * 1999-04-28 2004-03-04 The Regents Of The University Of Michigan Antimicrobial compositions and methods of use
US7655252B2 (en) 1999-04-28 2010-02-02 The Regents Of The University Of Michigan Antimicrobial nanoemulsion compositions and methods
US20050208083A1 (en) * 2003-06-04 2005-09-22 Nanobio Corporation Compositions for inactivating pathogenic microorganisms, methods of making the compositons, and methods of use thereof
US9131680B2 (en) 2003-06-04 2015-09-15 Nanobio Corporation Compositions for inactivating pathogenic microorganisms, methods of making the compositions, and methods of use thereof
US8703164B2 (en) 2003-06-04 2014-04-22 Nanobio Corporation Compositions for inactivating pathogenic microorganisms, methods of making the compositions, and methods of use thereof
US20070054834A1 (en) * 2005-04-11 2007-03-08 Nanobio Corporation Quaternary ammonium halides for treatment of infectious conditions
US20110200657A1 (en) * 2005-08-09 2011-08-18 Nanobio Corporation Methods of using nanoemulsion compositions having anti-inflammatory activity
US20070036831A1 (en) * 2005-08-09 2007-02-15 Nanobio Corporation Nanoemulsion compositions having anti-inflammatory activity
US20070073688A1 (en) * 2005-09-29 2007-03-29 Fry Jared S Methods, systems, and computer program products for automatically associating data with a resource as metadata based on a characteristic of the resource
US9801842B2 (en) 2007-05-02 2017-10-31 The Regents Of The University Of Michigan Nanoemulsion therapeutic compositions and methods of using the same
US20090270429A1 (en) * 2008-03-17 2009-10-29 Medivir Ab Antiviral formulation
US20110065655A1 (en) * 2009-09-17 2011-03-17 Karry Whitten Therapeutic composition to treat lesions caused by herpes simplex virus
WO2014159731A1 (fr) * 2013-03-13 2014-10-02 Nal Pharmaceuticals, Ltd Composition antivirale topique contenant un anesthésique local et son procédé de fabrication
TWI629062B (zh) 2013-03-13 2018-07-11 香港商安能泰製藥有限公司 含有局部麻醉劑之局部用抗病毒組合物及其製備方法
US11246872B2 (en) 2019-06-14 2022-02-15 Propella Therapeutics, Inc. Topical acyclovir formulations and uses thereof
WO2024044051A1 (fr) * 2022-08-22 2024-02-29 Ford Jacques Composition de chlorhexidine et son procédé d'utilisation
US11951082B2 (en) 2022-08-22 2024-04-09 Ford Therapeutics, Llc Composition of chlorhexidine

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WO1996024355A1 (fr) 1996-08-15
CN1179718A (zh) 1998-04-22
SI0809498T1 (en) 2004-12-31
NZ301407A (en) 1999-01-28
DE69632034D1 (de) 2004-05-06
DE69632034T2 (de) 2004-10-14
MA23800A1 (fr) 1996-10-01
PT809498E (pt) 2004-06-30
ATE262907T1 (de) 2004-04-15
JPH11506417A (ja) 1999-06-08
MY119365A (en) 2005-05-31
JP4260220B2 (ja) 2009-04-30
ZA96527B (en) 1996-08-06
US6337324B1 (en) 2002-01-08
IL116913A0 (en) 1996-05-14
CN1131034C (zh) 2003-12-17
DZ1966A1 (fr) 2002-10-15
FR10C0038I1 (fr) 2010-10-15
EP0809498B1 (fr) 2004-03-31
AU716809B2 (en) 2000-03-09
AU4682196A (en) 1996-08-27
HRP960034A2 (en) 1997-10-31
DE122010000032I1 (de) 2010-10-21
NO314220B1 (no) 2003-02-17
SA96160590B1 (ar) 2005-10-05
TW438585B (en) 2001-06-07
CA2211389A1 (fr) 1996-08-15
EP1419803A2 (fr) 2004-05-19
EP1419803B1 (fr) 2009-01-21
TNSN96024A1 (fr) 2005-03-15
DE69637828D1 (de) 2009-03-12
EP1419803A3 (fr) 2004-06-09
KR100431042B1 (ko) 2004-06-16
FI973243L (fi) 1997-08-06
JP2007284452A (ja) 2007-11-01
FI119415B (fi) 2008-11-14
CA2211389C (fr) 2007-11-20
FI973243A0 (fi) 1997-08-06
KR19980701959A (ko) 1998-06-25
ES2214528T3 (es) 2004-09-16
YU7296A (sh) 1998-08-14
FR10C0038I2 (fr) 2011-04-29
NO973612D0 (no) 1997-08-05
EP0809498A1 (fr) 1997-12-03
HK1004368A1 (en) 1998-11-27
AR002030A1 (es) 1998-01-07
YU49477B (sh) 2006-05-25
ATE421358T1 (de) 2009-02-15
HRP960034B1 (en) 2002-02-28
NO973612L (no) 1997-09-26
DK0809498T3 (da) 2004-05-10

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