Classifications

• • 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
  • A61K31/16—Amides, e.g. hydroxamic acids
  • A61K31/164—Amides, e.g. hydroxamic acids of a carboxylic acid with an aminoalcohol, e.g. ceramides
• • 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
  • A61K31/34—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
• • 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
  • A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
  • A61K31/19—Carboxylic acids, e.g. valproic acid
  • A61K31/191—Carboxylic acids, e.g. valproic acid having two or more hydroxy groups, e.g. gluconic acid
• • 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
  • A61K31/34—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
  • A61K31/343—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide condensed with a carbocyclic ring, e.g. coumaran, bufuralol, befunolol, clobenfurol, amiodarone
• • 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
  • A61K31/557—Eicosanoids, e.g. leukotrienes or prostaglandins
  • A61K31/5575—Eicosanoids, e.g. leukotrienes or prostaglandins having a cyclopentane, e.g. prostaglandin E2, prostaglandin F2-alpha
• • 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
  • A61K9/0048—Eye, e.g. artificial tears
• • 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
  • A61P27/00—Drugs for disorders of the senses
  • A61P27/02—Ophthalmic agents
  • A61P27/06—Antiglaucoma agents or miotics
• • 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 compositions comprising a Nitric oxide releasing isomannide derivative and a prostaglandin F 2a analog. More specifically, the invention discloses compositions for lowering intraocular pressure associated with glaucoma or with other ocular diseases.
• Glaucoma including hypertensive and normotensive glaucoma, is a disease of the eye characterized by a progressive loss of visual field due to irreversible damage to the optic nerve to the point where, if inadequately treated, glaucoma can lead to blindness or significant loss of vision.
• Prior art treatment of glaucoma consists in lowering the intraocular pressure by administering drugs which either reduce the production of aqueous humor within the eye or increase the fluid drainage, such as beta adrenergic blockers, a-agonists, cholinergic agents, carbonic anhydrase inhibitors, and prostaglandin analogs.
• drugs which either reduce the production of aqueous humor within the eye or increase the fluid drainage, such as beta adrenergic blockers, a-agonists, cholinergic agents, carbonic anhydrase inhibitors, and prostaglandin analogs.
• prostaglandin analogs facilitate aqueous humor from the uveoscleral outflow, thereby lowering intraocular pressure, and thus are commonly used in the treatment of glaucoma.
• prostaglandin analogs such as, for example, bimatoprost, latanoprost, travoprost, tafluprost and unoprostone isopropyl, can produce ocular side effects, such as ocular irritation, conjunctival hyperaemia, ulceris, uveitis, macular oedema, and increased pigmentation of the iris at therapeutically effective doses (Martindale, Thirty -third edition, p. 1445).
• drugs having an intraocular pressure lowering action are used in combination to enhance the intraocular pressure lowering action.
• EP 0 286 903 discloses the use of combinations of prostaglandin and a beta-adrenergic blocking agent
• US2013/0116254 discloses combination of the intraocular-lowering agents bimatoprost, brimonidine, and timolol.
• WO 2013/060673, WO2014/ 170264 and WO2014/063923 disclose the use of quinone based nitric oxide donors alone and in combinations with prostaglandin analogs for treating glaucoma and intraocular pressure.
• the quinone based nitric oxide donors are disclosed for ophthalmic use.
• the patent applications do not provide evidence concerning the effects brought about by combining the quinone based nitric oxide donors with prostaglandin analogs.
• EP 2 238 143B discloses nitric oxide releasing isohexide derivatives.
• the compounds have been disclosed for their use for treating cardiovascular diseases, hypertension, inflammation, pain, respiratory diseases, vascular diseases nephropathies and other pathological conditions including glaucoma and ocular hypertension.
• the patent does not provide evidence concerning the effects of the combination of a nitric oxide releasing isohexide derivatives and a prostaglandin analog.
• US 7,816,399 discloses the use of a mixture of latanoprost and a nitric oxide (NO) donor for treating or preventing ocular hypertension or glaucoma.
• NO nitric oxide
• the patent discloses that combinations of latanoprost with nipradilol or sodium nitroprusside increase the ocular tension reducing effect when compared to the compounds used individually.
• nitric oxide releasing isomannide derivatives and prostaglandin F 2 a analogs in combination exerts a greater reduction of intraocular pressure and a longer intraocular pressure decrease with respect to the same dose of either one of the two compounds given separately.
• the synergic effect on the reduction of the intraocular pressure following co-administration of the nitric oxide releasing isomannide derivative and the prostaglandin F 2 a analog will allow reducing the dosage of the prostaglandin F 2a analog thus decreasing or eliminating the side effects normally associated with the topical application of prostaglandin analogs.
• these combinations are useful as therapeutic agents for treating glaucoma and ocular hypertension by lowering intraocular pressure.
• the present invention provides effective ophthalmic compositions for treating and/or preventing glaucoma and ocular hypertension having reduced side effects and, thereby, enhanced patient compliance.
• the present invention relates to compositions comprising
• X is -CO- or -COO-
• Ci-Cio alkyl chain substituted with one or two -ONO 2;
• a prostaglandin F 2a analog selected from the group consisting of latanoprost, bimatoprost, travoprost, tafluprost or unoprostone isopropyl, preferably the prostaglandin F 2a analog is travoprost or bimatoprost.
• compositions comprising: (i) a nitric oxide releasing isomannide derivative of formula (I) that is selected from the group:
• a prostaglandin F 2a analog selected from the group consisting of: latanoprost, bimatoprost, travoprost, tafluprost and unoprostone isopropyl.
• compositions comprising: (i) a nitric oxide releasing isomannide derivative of formula (I) that is selected from the group:
• a prostaglandin F 2a analog that selected from the group consisting of latanoprost, bimatoprost, travoprost, tafluprost and unoprostone isopropyl.
• compositions comprising: (i) a nitric oxide releasing isomannide derivative of formula (I) that is
• the weight ratio of the nitric oxide releasing isomannide derivative of formula (I) to the prostaglandin F 2a analog is generally 1 : 1 to 10000: 1 and preferably is 5:1 to 1000:1.
• compositions comprising a nitric oxide releasing isomannide derivative of formula (I) and a prostaglandin F 2a analog as above defined, for the treatment of glaucoma, ocular hypertension and for reducing intraocular pressure associated with ocular diseases.
• Another embodiment of the present invention provides ophthalmic phamaceutical formulation comprising at least a nitric oxide releasing isomannide derivative of formula (I) as defined above, a prostaglandin F 2a analog and at least an ophthalmic excipient.
• the ophthalmic excipients may include for example, buffers, tonicity agents, chelating agents, viscosity enhancers, solubilizing agents, surfactants, antioxidants, preservatives or ophthalmic vehicles.
• ophthalmic pharmaceutical formulation of the present invention can be in the form of solutions, suspensions, emulsions, dispersions, topical eye drops, or gel tears.
• ophthalmic pharmaceutical formulation of the present invention will include the compounds of formula (I) in an amount between about 0.001 and about 10% percent by weight (w/v %) and the prostaglandin F 2a analog in an amount between about 0.0001 and about 0.2 w/v %.
• nitric oxide releasing isomannide derivatives of formula 1 It is preferred to use nitric oxide releasing isomannide derivatives of formula
• (I) in an amount between about 0.005 and about 2.0 w/v %, and it is especially preferred to use an amount between about 0.01 and about 0.5 w/v %. It is preferred to use the prostaglandin F 2a analog in an amount between about 0.0001 and about 0.1 w/v %, depending on the potency of the prostaglandin.
• (I) and a prostaglandin F 2a analog according to the present invention may be prepared in one dosage form comprising effective amounts of the respective compounds at a suitable mixing ratio or as a kit used by administering each preparation comprising an effective amount of each compound simultaneously or separately at an interval.
• nitric oxide releasing isomannide derivatives of formula (I) are described in EP 2 238 143B; this patent discloses structures, preparations and physical properties of these compounds.
• prostaglandin F 2a analogs used in the compositions of the invention have been known as agents for treatment of glaucoma and they are:
• latanoprost is 5-heptenoic acid, 7-[(lR,2R,3R,5S)-3,5-dihydroxy-2-[(3R)-3- hydroxy-5-phenylpentyl]cyclopentyl]-, 1-methylethyl ester, (52)-;
• bimatoprost is 5-heptenamide, 7-[(lR,2R,3R,5S)-3,5-dihydroxy-2-[(lis,3S)- 3-hydroxy-5-phenyl-l-penten-l-yl]cyclopentyl]-N-ethyl-, (5Z)-;
• travoprost is 5-heptenoic acid, 7-[(lR,2R,3R,5S)-3,5-dihydroxy-2-[(l£',3R)-
• tafluprost is 5-heptenoic acid, 7-[(lR,2R,3R,5S)-2-[(l£)-3,3-difluoro-4- phenoxy-l-buten-l-yl]-3,5-dihydroxycyclopentyl]-, 1-methylethyl ester, (5Z)-; unoprostone isopropyl is 5-heptenoic acid, 7-[(lR,2R,3R,5S)-3,5-dihydroxy- 2-(3-oxodecyl)cyclopentyl]-, 1-methylethyl ester, (5Z)-.
• Latanoprost, bimatoprost, travoprost, tafluprost or unoprostone isopropyl are commercially available.
• IOP Intraocular pressure
• IOP Intraocular pressure
• IOP was measured using a pneumatonometer 30 CLASSICTM before topical application (basal) and at different time points (30, 60, 120, 180, 240 and 300 min) thereafter.
• Travoprost (0.004%) or vehicle (5% cremophor-EL; 0.3% DMSO; 0.2 mg/ml BAC in PBS pH 6.0) were topically administered 5 minutes prior to compound (12) (0.1%) or vehicle (same as above) as eye drops into the conjunctiva pocket. Eyes were randomly assigned to different treatment groups.
• One drop of 0.4% oxybuprocaine hydrochloride Novesine, Sandoz was instilled in each eye immediately before each set of ocular pressure measurements.
• Results are reported in the table in which the ocular hypotensive activity of the combination, of compound (12) and of travoprost are expressed as IOP change (at 30, 60, 120 and 300 minutes following topical administration) versus vehicle and versus IOP at basal (mean ⁇ standard error).
• IOP Intraocular pressure
• IOP Intraocular pressure
• NZW rabbits weighting 1.8-2.0Kg were used in the experiments. NZW rabbits were injected with 0.1 ml of hypertonic saline (5%) into the vitreous humor of both eyes. IOP was measured using a Tono-Pen AVIA Vet® at different time points (30, 60, 120 and 240 min) following hypertonic saline injection as well as before topical drug application (basal).
• BAC in PBS pH 6.0 were topically administered 15 min before hypertonic saline injection.
• Compound (12) (0.3%) or vehicle (5% cremophor-EL; 0.3% DMSO; 0.2 mg/ml BAC in PBS pH 6.0) were topically administered immediately after hypertonic saline injection. Eyes were randomly assigned to different treatment groups.

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• 2015
  • 2015-11-17 US US15/527,129 patent/US10610509B2/en not_active Expired - Fee Related
  • 2015-11-17 ES ES15801709T patent/ES2764654T3/es active Active
  • 2015-11-17 WO PCT/EP2015/076865 patent/WO2016079142A1/en not_active Ceased
  • 2015-11-17 EP EP15801709.5A patent/EP3220905B1/en not_active Not-in-force
  • 2015-11-17 JP JP2017526551A patent/JP6820847B2/ja not_active Expired - Fee Related
  • 2015-11-17 CN CN201580062042.0A patent/CN106999452B/zh not_active Expired - Fee Related
  • 2015-11-17 CA CA2968010A patent/CA2968010A1/en active Pending

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