||||||||||timbetasin ophthalmic (RGN-259) / ReGenTree Trial completion: Safety and Efficacy of Thymosin Beta 4 Ophthalmic Solution in Patients With Dry Eye (clinicaltrials.gov) - Jan 3, 2012 P2, N=72, Completed, Sponsor: RegeneRx Biopharmaceuticals, Inc. Completed --> Terminated; Lack of patient availability and expiration of study drug Active, not recruiting --> Completed