Intraocular drug delivery systems including microspheres comprising a therapeutic agent and polylactic acid and use thereof in the preparation of medicaments

摘要

Biodegradable implants sized and suitable for implantation in an ocular region or site and methods for treating ocular conditions. The implants provide an extended release of an active agent at a therapeutically effective amount for a period of time between 10 days and one year or longer. The biocompatible, injectable intraocular drug delivery system comprises a plurality of microspheres in aqueous medium and an alpha Z adrenergic agonist such as brimonidine and biodegradable polyactic acid (PLA) polymers.