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Details for Patent: 8,030,297

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Details for Patent: 8,030,297

Title:Controlled release corticosteroid compositions and methods for the treatment of OTIC disorders
Abstract: Disclosed herein are compositions and methods for the treatment of otic disorders with steroid, NSAID, and/or adenosine triphosphatase ("ATPase") modulator agents. In these methods, the steroidal, NSAID, and/or ATPase compositions and formulations are administered locally to an individual afflicted with an otic disorder, through direct application of these compositions and formulations onto or via perfusion into the targeted auris structure(s).
Inventor(s): Lichter; Jay (Rancho Santa Fe, CA), Trammel; Andrew M. (Olathe, KS), Harris; Jeffrey P. (La Jolla, CA), Piu; Fabrice (San Diego, CA), Lebel; Carl (Malibu, CA), Ye; Qiang (San Diego, CA), Dellamary; Luis A. (San Marcos, CA)
Assignee: Otonomy, Inc. (San Diego, CA) The Regents of the University of California (Oakland, CA)
Filing Date:May 14, 2009
Application Number:12/466,310
Claims:1. A method of alleviating or ameliorating the symptoms of otic disorders selected from Meniere's disease, Autoimmune ear disease (AIED), otitis media, acoustic trauma induced sensorineural hearing loss, drug induced sensorineural hearing loss, sensorineural hearing loss due to infection, idiopathic sensorineural hearing loss, vertigo, and tinnitus, in an individual in need thereof comprising intratympanic administration of a pharmaceutical composition on or near the round window membrane of the ear of the individual in need thereof, the composition comprising an auris acceptable thermoreversible aqueous gel comprising a polymer from about 16% to 21% by weight of polyoxypropylene and polyoxyethylene and from 1 mg/mL to 70 mg/mL a multiparticulate anti-inflammatory corticosteroid such that sustained release of the anti-inflammatory corticosteroid across the round window membrane into the cochlea occurs for a period of at least 5 days after a single administration.

2. A method according to claim 1, wherein the anti-inflammatory corticosteroid is dexamethasone, dexamethasone ester, or pharmaceutically acceptable salt thereof.

3. A method according to claim 1, wherein the composition has a pH between about 7.0 and about 8.0.

4. A method according to claim 1, further comprising a delivery system for the delivery of the composition to or near to the round window.

5. A method according to claim 4, wherein the delivery system comprises a needle for delivery of the composition.

6. A method according to claim 4, wherein the needle is part of a syringe and needle apparatus, a hypodermic needle, a micro-otoscope.

7. A method for alleviating or ameliorating the symptoms of Meniere's disease in an individual comprising administration of a pharmaceutical composition formulated to provide sustained release of a therapeutically effective amount of dexamethasone, dexamethasone ester, methylprednisolone, or prednisolone, or pharmaceutically acceptable salt thereof, across the round window membrane into the cochlea for a period of at least 5 days after a single administration, the composition comprising: between 1 mg/mL to 70 mg/mL of multiparticulate dexamethasone, dexamethasone ester, methylprednisolone, prednisolone, or pharmaceutically acceptable salt thereof; between 16% to 21% by weight of a polyoxyethylene-polyoxypropylene triblock copolymer of general formula E106 P70 E106; sterile water, q.s., buffered to provide an perilymph-suitable pH between 7.0 and 7.6; wherein the pharmaceutical composition has an perilymph-suitable osmolarity between 250 and 320 mOsm/kg, and less than 50 colony forming units (cfu) of microbiological agents per gram of formulation.

8. A method according to claim 7, wherein the sustained release is provided for a period of at least 10 days.

9. A method according to claim 7, wherein the composition is an auris-acceptable thermoreversible gel.

10. A method according to claim 7, wherein the composition further comprises a drug delivery device selected from a needle and syringe, a pump, a microinjection device, an in situ forming spongy material or combinations thereof.

11. A method according to claim 7, wherein the composition further comprises an additional therapeutic agent.

12. A method according to claim 11, wherein the additional therapeutic agent is Na/K ATPase modulator, an anti-TNF agent, a chemotherapeutic agent, a collagen, a gamma-globulin, an interferon, an anti-microbial agent, an antibiotic, a local acting anesthetic agent, a platelet activator factor antagonist, a nitric oxide synthase inhibitor, an anti-dizzyness medicine, a vasopressin antagonist, an anti-viral, an anti-glaucoma agent or combinations thereof.

13. A method for alleviating or ameliorating the symptoms of sudden sensineural hearing loss in an individual comprising administration of a pharmaceutical composition formulated to provide sustained release of a therapeutically effective amount of dexamethasone, dexamethasone ester, methylprednisolone, or prednisolone, or pharmaceutically acceptable salt thereof, across the round window membrane into the cochlea for a period of at least 5 days after a single administration, the composition comprising: between 1 mg/mL to 70 mg/mL of multiparticulate dexamethasone, dexamethasone acetate, methylprednisolone, prednisolone, or pharmaceutically acceptable salt thereof; between 16% to 21% by weight of a polyoxyethylene-polyoxypropylene triblock copolymer of general formula E106 P70 E106; sterile water, q.s., buffered to provide an perilymph-suitable pH between 7.0 and 7.6; wherein the pharmaceutical formulation has an perilymph-suitable osmolarity between 250 and 320 mOsm/kg, and less than 50 colony forming units (cfu) of microbiological agents per gram of formulation.

14. A method according to claim 13, wherein the sustained release is provided for a period of at least 10 days.

15. A method according to claim 13, wherein the composition is an auris-acceptable thermoreversible gel.

16. A method according to claim 13, wherein the composition further comprises a drug delivery device selected from a needle and syringe, a pump, a microinjection device, an in situ forming spongy material or combinations thereof.

17. A method according to claim 13, wherein the composition further comprises an additional therapeutic agent.

18. A method according to claim 17, wherein the additional therapeutic agent is Na/K ATPase modulator, an anti-TNF agent, a chemotherapeutic agent, a collagen, a gamma-globulin, an interferon, an anti-microbial agent, an antibiotic, a local acting anesthetic agent, a platelet activator factor antagonist, a nitric oxide synthase inhibitor, an anti-dizzyness medicine, a vasopressin antagonist, an anti-viral, an anti-glaucoma agent or combinations thereof.

19. The method of claim 1, wherein the composition comprises micronized corticosteroid.
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