ALAMEDA, Calif.--(BUSINESS WIRE)--InSite Vision Incorporated (AMEX:ISV) -- an ophthalmic therapeutics, diagnostics and drug delivery company, is pleased to announce that a Phase 1 (safety) clinical study for AzaSite Plus (ISV-502), a combination antibiotic/corticosteroid, has been initiated. AzaSite Plus, the next product in the AzaSite product franchise, combines azithromycin and dexamethasone in DuraSite which is InSite Vision’s drug delivery system for topical ophthalmic indications.