ES2224200T3 - Composicion inyectable estable de paclitaxel. - Google Patents
Composicion inyectable estable de paclitaxel.Info
- Publication number
- ES2224200T3 ES2224200T3 ES97121710T ES97121710T ES2224200T3 ES 2224200 T3 ES2224200 T3 ES 2224200T3 ES 97121710 T ES97121710 T ES 97121710T ES 97121710 T ES97121710 T ES 97121710T ES 2224200 T3 ES2224200 T3 ES 2224200T3
- Authority
- ES
- Spain
- Prior art keywords
- acid
- solution
- paclitaxel
- solution according
- ethanol
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 229930012538 Paclitaxel Natural products 0.000 title claims abstract description 32
- 229960001592 paclitaxel Drugs 0.000 title claims abstract description 32
- RCINICONZNJXQF-MZXODVADSA-N taxol Chemical compound O([C@@H]1[C@@]2(C[C@@H](C(C)=C(C2(C)C)[C@H](C([C@]2(C)[C@@H](O)C[C@H]3OC[C@]3([C@H]21)OC(C)=O)=O)OC(=O)C)OC(=O)[C@H](O)[C@@H](NC(=O)C=1C=CC=CC=1)C=1C=CC=CC=1)O)C(=O)C1=CC=CC=C1 RCINICONZNJXQF-MZXODVADSA-N 0.000 title claims abstract description 31
- 239000007972 injectable composition Substances 0.000 title 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 40
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000002253 acid Substances 0.000 claims abstract description 16
- 239000008389 polyethoxylated castor oil Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000004359 castor oil Substances 0.000 claims abstract description 3
- 235000019438 castor oil Nutrition 0.000 claims abstract description 3
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 3
- 229960004106 citric acid Drugs 0.000 claims description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 229920002685 Polyoxyl 35CastorOil Polymers 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- QUANRIQJNFHVEU-UHFFFAOYSA-N oxirane;propane-1,2,3-triol Chemical compound C1CO1.OCC(O)CO QUANRIQJNFHVEU-UHFFFAOYSA-N 0.000 claims description 6
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 4
- 239000005711 Benzoic acid Substances 0.000 claims description 2
- YASYEJJMZJALEJ-UHFFFAOYSA-N Citric acid monohydrate Chemical compound O.OC(=O)CC(O)(C(O)=O)CC(O)=O YASYEJJMZJALEJ-UHFFFAOYSA-N 0.000 claims description 2
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 claims description 2
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- YVPYQUNUQOZFHG-UHFFFAOYSA-N amidotrizoic acid Chemical compound CC(=O)NC1=C(I)C(NC(C)=O)=C(I)C(C(O)=O)=C1I YVPYQUNUQOZFHG-UHFFFAOYSA-N 0.000 claims description 2
- 235000010323 ascorbic acid Nutrition 0.000 claims description 2
- 229960005070 ascorbic acid Drugs 0.000 claims description 2
- 239000011668 ascorbic acid Substances 0.000 claims description 2
- 235000003704 aspartic acid Nutrition 0.000 claims description 2
- 235000010233 benzoic acid Nutrition 0.000 claims description 2
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 claims description 2
- 229960002303 citric acid monohydrate Drugs 0.000 claims description 2
- 229960005223 diatrizoic acid Drugs 0.000 claims description 2
- 239000004220 glutamic acid Substances 0.000 claims description 2
- 235000013922 glutamic acid Nutrition 0.000 claims description 2
- 239000004310 lactic acid Substances 0.000 claims description 2
- 235000014655 lactic acid Nutrition 0.000 claims description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 2
- 239000011976 maleic acid Substances 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 239000001384 succinic acid Substances 0.000 claims description 2
- 239000011975 tartaric acid Substances 0.000 claims description 2
- 235000002906 tartaric acid Nutrition 0.000 claims description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims 1
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 claims 1
- 235000004443 Ricinus communis Nutrition 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 13
- 239000000243 solution Substances 0.000 abstract 5
- 239000012876 carrier material Substances 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 125000002456 taxol group Chemical group 0.000 abstract 1
- 238000009472 formulation Methods 0.000 description 9
- 239000012535 impurity Substances 0.000 description 4
- 102000029749 Microtubule Human genes 0.000 description 3
- 108091022875 Microtubule Proteins 0.000 description 3
- 210000004688 microtubule Anatomy 0.000 description 3
- IAKHMKGGTNLKSZ-INIZCTEOSA-N (S)-colchicine Chemical compound C1([C@@H](NC(C)=O)CC2)=CC(=O)C(OC)=CC=C1C1=C2C=C(OC)C(OC)=C1OC IAKHMKGGTNLKSZ-INIZCTEOSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 206010006187 Breast cancer Diseases 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 2
- 241000202349 Taxus brevifolia Species 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000010534 mechanism of action Effects 0.000 description 2
- 201000001441 melanoma Diseases 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 230000000394 mitotic effect Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000010076 replication Effects 0.000 description 2
- RCINICONZNJXQF-XAZOAEDWSA-N taxol® Chemical compound O([C@@H]1[C@@]2(CC(C(C)=C(C2(C)C)[C@H](C([C@]2(C)[C@@H](O)C[C@H]3OC[C@]3(C21)OC(C)=O)=O)OC(=O)C)OC(=O)[C@H](O)[C@@H](NC(=O)C=1C=CC=CC=1)C=1C=CC=CC=1)O)C(=O)C1=CC=CC=C1 RCINICONZNJXQF-XAZOAEDWSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 208000026310 Breast neoplasm Diseases 0.000 description 1
- 206010025323 Lymphomas Diseases 0.000 description 1
- 206010033128 Ovarian cancer Diseases 0.000 description 1
- 206010061535 Ovarian neoplasm Diseases 0.000 description 1
- 241001116500 Taxus Species 0.000 description 1
- 229940122803 Vinca alkaloid Drugs 0.000 description 1
- 230000000118 anti-neoplastic effect Effects 0.000 description 1
- 229940034982 antineoplastic agent Drugs 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000012292 cell migration Effects 0.000 description 1
- DQLATGHUWYMOKM-UHFFFAOYSA-L cisplatin Chemical compound N[Pt](N)(Cl)Cl DQLATGHUWYMOKM-UHFFFAOYSA-L 0.000 description 1
- 229960004316 cisplatin Drugs 0.000 description 1
- 229960001338 colchicine Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001472 cytotoxic effect Effects 0.000 description 1
- YJGVMLPVUAXIQN-UHFFFAOYSA-N epipodophyllotoxin Natural products COC1=C(OC)C(OC)=CC(C2C3=CC=4OCOC=4C=C3C(O)C3C2C(OC3)=O)=C1 YJGVMLPVUAXIQN-UHFFFAOYSA-N 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- YJGVMLPVUAXIQN-XVVDYKMHSA-N podophyllotoxin Chemical compound COC1=C(OC)C(OC)=CC([C@@H]2C3=CC=4OCOC=4C=C3[C@H](O)[C@@H]3[C@@H]2C(OC3)=O)=C1 YJGVMLPVUAXIQN-XVVDYKMHSA-N 0.000 description 1
- 229960001237 podophyllotoxin Drugs 0.000 description 1
- YVCVYCSAAZQOJI-UHFFFAOYSA-N podophyllotoxin Natural products COC1=C(O)C(OC)=CC(C2C3=CC=4OCOC=4C=C3C(O)C3C2C(OC3)=O)=C1 YVCVYCSAAZQOJI-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 239000002435 venom Substances 0.000 description 1
- 210000001048 venom Anatomy 0.000 description 1
- 231100000611 venom Toxicity 0.000 description 1
Classifications
-
- 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
- A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
-
- 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
- A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
-
- 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
- A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
- A61K31/337—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having four-membered rings, e.g. taxol
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
- A61K47/10—Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
- A61K47/12—Carboxylic acids; Salts or anhydrides thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
- A61K47/14—Esters of carboxylic acids, e.g. fatty acid monoglycerides, medium-chain triglycerides, parabens or PEG fatty acid esters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/44—Oils, fats or waxes according to two or more groups of A61K47/02-A61K47/42; Natural or modified natural oils, fats or waxes, e.g. castor oil, polyethoxylated castor oil, montan wax, lignite, shellac, rosin, beeswax or lanolin
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medicinal Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dermatology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicinal Preparation (AREA)
- Epoxy Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
UNA COMPOSICION DE TAXOL Y ACEITE DE CASTOR POLIETOXILADO TIENE UN PH EQUILIBRADO PARA SER MENOR DE 8,1 PARA MEJORAR LA ESTABILIDAD. ESTA COMPOSICION PUEDE INCLUIR UN ACIDO, PREFERENTEMENTE ACIDO CITRICO, PARA AJUSTAR EL VALOR DEL PH. LA INVENCION INCLUYE UN METODO PARA FORMULAR UNA SOLUCION DE TAXOL PARA LA INYECCION MEZCLANDO UN ACIDO CON UN MATERIAL VEHICULO, TAL COMO ACEITE DE CASTOR, PARA FORMAR UNA SOLUCION VEHICULO TRAS LO CUAL EL TAXOL SE MEZCLA CON LA SOLUCION VEHICULO PARA FORMAR LA SOLUCION DE TAXOL A UN PH DE MENOS DE 8,1. EL METODO PUEDE INCLUIR LA ETAPA DE SUSPENDER EL TAXOL EN ALCOHOL ANTES DE MEZCLARLO CON LA SOLUCION VEHICULO.
Description
Composición inyectable estable de paclitaxel.
La presente invención se refiere a una solución
de paclitaxel con una estabilidad mejorada.
El paclitaxel es un compuesto extraído de la
corteza de un tejo occidental, la Taxus brevifolia, y
conocido por su actividad antineoplásica. Está descrito, por
ejemplo, en el Merck Index, undécima edición de 1989, monografía
9049.
En 1977, se seleccionó el paclitaxel para su
desarrollo como agente antineoplásico debido a su mecanismo único
de acción y a su buena actividad citotóxica contra el melanoma D16
implantado IP y la xenografía de tumor mamario X-1
humano.
Se cree que el paclitaxel funciona como un veneno
del huso mitótico y como un potente inhibidor de la replicación
celular in vitro. Otros puntos del huso mitótico (colchicina
y podofilotoxina) inhiben la unión de microtúbulos. El paclitaxel
emplea un mecanismo de acción diferente debido a que parece
desplazar el equilibrio de polimerización/despolimerización hacia
el ensamblaje polimérico y estabilizar los microtúbulos contra la
despolimerización bajo condiciones que causarían una rápida
desagregación de los microtúbulos. La interferencia con el ciclo de
polimerización/despolimerización en células parece interferir tanto
en la replicación como en la migración de células.
Tras un extenso estudio preclínico en modelos
tumorales de ratón, el paclitaxel se incluyó en los ensayos
clínicos en 1983. Durante los últimos años, el paclitaxel ha
demostrado tener una buena velocidad de respuesta en el tratamiento
tanto de pacientes con cáncer de ovarios como de cáncer de mama que
no mejoraban con la terapia con alcaloides de vinca o con
cisplatina. Ha mostrado asimismo resultados prometedores en
pacientes con otros tipos de cáncer incluyendo el pulmonar, el
melanoma, el linfoma, el de cabeza y el de cuello.
Para una información adicional, debe hacerse
referencia al Clinical Brochure for Paclitaxel (Taxol®) (informe
clínico para el paclitaxel) del U.S. National Cancer Institute,
revisado en julio de 1991, y a los artículos presentados en el
Second National Cancer Institute Workshop on Taxol® and Taxus,
celebrado en Alexandria, Virginia USA el 23-24 de
septiembre de 1992.
Una desventaja de la formulación conocida es que
el paclitaxel de la misma se degrada, con el resultado de que la
vida de almacenamiento de la formulación no es satisfactoria y por
lo tanto, existe la necesidad de una solución de estabilidad
mejorada.
Según lo anterior, en un aspecto general de la
invención se proporciona una solución que consiste en paclitaxel,
etanol, aceite de castor polietoxilado y ácido, presentando dicha
solución un pH comprendido entre 5 y 7. El pH de la solución se ha
ajustado en el intervalo entre 5 y 7, mediante la adición de un
ácido. Por consiguiente, en otro aspecto general, la invención
proporciona un procedimiento para preparar una solución de
paclitaxel según la invención, comprendiendo dicho procedimiento la
adición de ácido a una solución que consiste en paclitaxel, etanol y
aceite de castor polietoxilado. Los ácidos en forma de polvos, por
ejemplo el ácido cítrico, son preferibles sobre los que contienen
agua, por ejemplo el ácido sulfúrico. El ácido más preferido para
utilizar según la presente invención es el ácido cítrico, aunque
pueden utilizarse una amplia variedad de ácidos incluyendo los
siguientes:
Acido cítrico - monohidratado
Acido cítrico - anhidro
Acido cítrico - hidratado
Acido acético
Acido fórmico
Acido ascórbico
Acido aspártico
Acido benzenosulfónico
Acido benzoico
Acido clorhídrico
Acido sulfúrico
Acido fosfórico
Acido nítrico
Acido tartárico
Acido diatrizoico
Acido glutámico
Acido láctico
Acido maleico
Acido succínico
Debido a su limitada solubilidad en agua, el
paclitaxel normalmente se prepara y se administra en un vehículo
que contiene Cremophor EL® (un aceite de ricino polietoxilado que
actúa como solubilizante) y etanol. Con dichos componentes se
formula una solución disponible comercialmente suministrada por
Bristol-Myers Squibb (BMS) y tiene un pH de 9,1.
Como se ha indicado anteriormente, la invención
muestra esencialmente la adición de un ácido a una formulación de
paclitaxel para ajustar su pH en el intervalo entre 5 y 7.
En un procedimiento preferido adoptado por el
solicitante, que claramente ha de entenderse como no limitativo, se
llevaron a cabo las siguientes etapas:
Solución
1
Se disolvió ácido cítrico en alcohol absoluto,
utilizando una relación de 8 ml de alcohol absoluto por 1 gramo de
ácido cítrico, y la solución se agitó durante quince (15)
minutos.
Solución
2
El Cremophor EL® se pesó en el matraz de mezclado
principal.
Solución
3
La solución 1 se añadió a la solución 2, y el
recipiente utilizado para la solución 2 se lavó con una cantidad
mínima de alcohol absoluto para asegurar una transferencia completa
del ácido cítrico. La solución 3 se agitó y se hizo burbujear
nitrógeno a su través durante unos 15 minutos. Se pesó el paclitaxel
y se dispersó utilizando alcohol absoluto, utilizando una relación
de 8 ml de alcohol absoluto por 1 g de paclitaxel. El paclitaxel
dispersado se añadió a la solución 3 y el matraz de la suspensión se
lavó con una mínima cantidad de alcohol absoluto. La solución 3 se
ajustó hasta el 75% del volumen requerido utilizando alcohol
absoluto y se agitó el conjunto durante por lo menos 45 minutos
hasta que se disolvió completamente. Una vez completamente disuelto,
se comprobó el volumen y se ajustó con alcohol absoluto y la
solución final se agitó durante 5 minutos.
Se preparó una solución con la siguiente
formulación:
Formulación: (Muestra 1) | |
Cremophor EL® | 0,5 ml |
Acido cítrico (anhidro) | 2,0 mg |
Paclitaxel | 6,0 mg |
Alcohol absoluto hasta | 1,0 ml |
El pH de dicha solución se determinó como de
6,1.
La estabilidad de dicha muestra se comparó con
una mezcla preparada mediante la formulación indicada en el informe
clínico del paclitaxel del NCI (como se muestra a continuación) que
tenía un pH de 9,1. (Muestra 2)
Muestra 2 | por ml |
Paclitaxel | 6 mg |
Cremophor EL® | 0,5 ml |
Alcohol absoluto | hasta 1 ml |
Las soluciones se introdujeron en viales de 5 ml
de vidrio claro de tipo 1 y se sellaron con tapones de goma.
Las soluciones de almacenaron a 40ºC durante 7
(siete) días y los resultados de estabilidad se muestran en la
Tabla 1.
Muestra 1 | Muestra 2 | |
pH | 6,2 | 9,0 |
Potencia | 96,6 | 86,7 |
Principal individual | 0,3% | 5,1% de impureza |
Impurezas totales | 2,0% | 12,2% |
La Muestra 1 mostró claramente un aumento
significativo de la estabilidad sobre la Muestra 2.
Se preparó una solución con la siguiente
formulación:
Formulación: (Muestra 3) | |
Cremophor EL® | 0,5 ml |
Paclitaxel | 6,0 mg |
Etanol absoluto | hasta 1 ml |
pH ajustado a 6,6 con ácido acético 1,0
M.
La solución se introdujo en viales de 5 ml de
vidrio claro de tipo I y se sellaron con tapones de goma.
La solución se almacenó a 40ºC durante 7
días.
Los resultados de estabilidad obtenidos se
compararon con los observados para la Muestra 2.
Muestra 3 | Muestra 2 | |
pH | 6,7 | 9,0 |
Potencia | 97,5 | 86,7 |
Principal individual | 0,3% | 5,1% de impureza |
Impurezas totales | 2,3% | 12,2% |
Nuevamente resulta evidente la estabilidad
significativamente superior de la formulación según la invención
(Muestra 3).
Se entenderá claramente que la invención en sus
aspectos generales no está limitada a los detalles específicos
referidos anteriormente.
Claims (8)
1. Solución que consiste en paclitaxel, etanol,
aceite de castor polietoxilado y ácido, presentando dicha solución
un pH comprendido entre 5 y 7.
2. Solución según la reivindicación 1, en la que
dicho etanol es etanol absoluto.
3. Solución según la reivindicación 1 ó 2, en la
que el aceite de castor polietoxilado es cremophor EL^{TM}.
4. Solución según cualquiera de las
reivindicaciones 1 a 3, en la que dicho ácido se selecciona de
entre el grupo que consiste en ácido cítrico, ácido acético, ácido
fórmico, ácido ascórbico, ácido aspártico, ácido enzenosulfónico,
ácido benzoico, ácido clorhídrico, ácido sulfúrico, ácido fosfórico,
ácido nítrico, ácido tartárico, ácido diatrizoico, ácido glutámico,
ácido láctico, ácido maleico o ácido succínico.
5. Solución según la reivindicación 4, en la que
dicho ácido es ácido cítrico.
6. Solución según la reivindicación 5, en la que
dicho ácido cítrico es ácido cítrico anhidro o hidratado.
7. Solución según la reivindicación 6, en la que
dicho ácido cítrico hidratado es ácido cítrico monohidratado.
8. Procedimiento para la preparación de una
solución de paclitaxel según cualquiera de las reivindicaciones
anteriores, que comprende la adición de un ácido a una solución que
consiste en paclitaxel, etanol y ácido de castor polietoxilado.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPL607492 | 1992-11-27 | ||
AUPL607492 | 1992-11-27 | ||
US99550192A | 1992-12-22 | 1992-12-22 | |
US995501 | 1992-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2224200T3 true ES2224200T3 (es) | 2005-03-01 |
Family
ID=25644377
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES97121710T Expired - Lifetime ES2224200T3 (es) | 1992-11-27 | 1993-11-18 | Composicion inyectable estable de paclitaxel. |
ES94901593T Expired - Lifetime ES2119996T3 (es) | 1992-11-27 | 1993-11-18 | Composicion inyectable que comprende faclitaxel. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES94901593T Expired - Lifetime ES2119996T3 (es) | 1992-11-27 | 1993-11-18 | Composicion inyectable que comprende faclitaxel. |
Country Status (12)
Country | Link |
---|---|
US (7) | US5733888A (es) |
EP (4) | EP0835657B1 (es) |
JP (1) | JP2880292B2 (es) |
AT (2) | ATE274347T1 (es) |
AU (1) | AU5612694A (es) |
CA (2) | CA2149150C (es) |
DE (2) | DE69333605T2 (es) |
DK (2) | DK0835657T3 (es) |
ES (2) | ES2224200T3 (es) |
GR (1) | GR3027724T3 (es) |
PT (1) | PT835657E (es) |
WO (2) | WO1994012030A1 (es) |
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- 1993-11-18 EP EP97121710A patent/EP0835657B1/en not_active Revoked
- 1993-11-18 CA CA002149150A patent/CA2149150C/en not_active Expired - Lifetime
- 1993-11-18 ES ES97121710T patent/ES2224200T3/es not_active Expired - Lifetime
- 1993-11-18 EP EP03025151A patent/EP1384474A1/en active Pending
- 1993-11-18 DK DK97121710T patent/DK0835657T3/da active
- 1993-11-18 CA CA002308082A patent/CA2308082A1/en not_active Abandoned
- 1993-11-18 WO PCT/US1993/011199 patent/WO1994012030A1/en active Application Filing
- 1993-11-18 DE DE69320206T patent/DE69320206T2/de not_active Revoked
- 1993-11-18 EP EP04020044A patent/EP1500393A1/en not_active Withdrawn
- 1993-11-18 AT AT97121710T patent/ATE274347T1/de not_active IP Right Cessation
- 1993-11-18 JP JP6513255A patent/JP2880292B2/ja not_active Expired - Fee Related
- 1993-11-18 WO PCT/US1993/011209 patent/WO1994012031A1/en not_active Application Discontinuation
- 1993-11-18 AU AU56126/94A patent/AU5612694A/en not_active Abandoned
- 1993-11-18 EP EP94901593A patent/EP0674510B1/en not_active Revoked
- 1993-11-18 AT AT94901593T patent/ATE169216T1/de not_active IP Right Cessation
- 1993-11-18 ES ES94901593T patent/ES2119996T3/es not_active Expired - Lifetime
- 1993-11-18 DK DK94901593T patent/DK0674510T3/da active
- 1993-11-18 PT PT97121710T patent/PT835657E/pt unknown
-
1996
- 1996-01-31 US US08/594,478 patent/US5733888A/en not_active Expired - Lifetime
-
1997
- 1997-11-26 US US08/979,836 patent/US5977164A/en not_active Expired - Lifetime
-
1998
- 1998-02-24 US US09/028,906 patent/US5972992A/en not_active Expired - Lifetime
- 1998-08-26 GR GR980401904T patent/GR3027724T3/el unknown
-
1999
- 1999-07-19 US US09/356,158 patent/US6140359A/en not_active Expired - Fee Related
-
2000
- 2000-05-03 US US09/563,969 patent/US6306894B1/en not_active Expired - Fee Related
-
2001
- 2001-10-04 US US09/970,558 patent/US6770670B2/en not_active Expired - Fee Related
-
2004
- 2004-04-29 US US10/835,875 patent/US20040204479A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP0674510B1 (en) | 1998-08-05 |
US5972992A (en) | 1999-10-26 |
ATE274347T1 (de) | 2004-09-15 |
EP0835657B1 (en) | 2004-08-25 |
EP1500393A1 (en) | 2005-01-26 |
US5733888A (en) | 1998-03-31 |
AU5612694A (en) | 1994-06-22 |
US6140359A (en) | 2000-10-31 |
CA2149150C (en) | 2000-08-01 |
ES2119996T3 (es) | 1998-10-16 |
DE69333605T2 (de) | 2005-02-03 |
JP2880292B2 (ja) | 1999-04-05 |
WO1994012031A1 (en) | 1994-06-09 |
DK0835657T3 (da) | 2005-01-10 |
WO1994012030A1 (en) | 1994-06-09 |
DK0674510T3 (da) | 1999-05-10 |
US6770670B2 (en) | 2004-08-03 |
US5977164A (en) | 1999-11-02 |
ATE169216T1 (de) | 1998-08-15 |
JPH08503945A (ja) | 1996-04-30 |
US20040204479A1 (en) | 2004-10-14 |
EP0835657A1 (en) | 1998-04-15 |
DE69333605D1 (de) | 2004-09-30 |
US6306894B1 (en) | 2001-10-23 |
EP1384474A1 (en) | 2004-01-28 |
PT835657E (pt) | 2004-11-30 |
EP0674510A1 (en) | 1995-10-04 |
CA2308082A1 (en) | 1994-06-09 |
GR3027724T3 (en) | 1998-11-30 |
CA2149150A1 (en) | 1994-06-09 |
US20030065022A1 (en) | 2003-04-03 |
DE69320206D1 (de) | 1998-09-10 |
EP0674510A4 (en) | 1995-08-12 |
DE69320206T2 (de) | 1999-02-11 |
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