ROCKVILLE, Md.--(BUSINESS WIRE)--RegeneRx Biopharmaceuticals, Inc. (OTC Bulletin Board: RGRX) (“the Company” or “RegeneRx”) announced today that it has shifted its near-term clinical development focus to RGN-259, its preservative-free topical eye drop, for the treatment of symptomatic dry eye. This reprioritization of the Company’s product pipeline is primarily due to recently announced data supporting the development of RGN-259 for this indication.