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Details for Patent: 8,071,120

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Details for Patent: 8,071,120

Title:Methods for treating neovascularization and intravitreal implants
Abstract: Methods for reducing or preventing transplant rejection in the eye of an individual are described, comprising: a) performing an ocular transplant procedure; and b) implanting in the eye a bioerodible drug delivery system comprising an immunosuppressive agent and a bioerodible polymer.
Inventor(s): Wong; Vernon G. (Menlo Park, CA)
Assignee: Allergan, Inc. (Irvine, CA)
Filing Date:Mar 30, 2006
Application Number:11/393,101
Claims:1. An intravitreal, bioerodible drug delivery system consisting essentially of about 50% by weight dexamethasone effective in preventing or reducing neovascularization in an eye prone to neovascularization, about 15% by weight hydroxypropyl methylcellulose, and about 35% by weight polylactic acid polyglycolic acid (PLGA) copolymer thereby forming an implant for placement into the vitreous of an eye prone to neovascularization.

2. An intravitreal, bioerodible drug delivery system consisting essentially of about 50% by weight dexamethasone effective in preventing or reducing neovascularization in an eye prone to neovascularization, about 15% by weight hydroxypropyl methylcellulose, and about 35% by weight polylactic acid polyglycolic acid (PLGA) copolymer.

3. An intravitreal, bioerodible drug delivery system consisting essentially of about 50% by weight particles of dexamethasone, about 15% by weight hydroxypropyl methylcellulose, and about 35% by weight polylactic acid polyglycolic acid (PLGA) copolymer, wherein the system is effective in releasing the dexamethasone into the eye over a period of at least about 3 weeks, and wherein the intravitreal, bioerodible drug delivery system is a single pellet or a single extruded filament.
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