ROCKVILLE, Md. & SALT LAKE CITY--(BUSINESS WIRE)--Rexahn Pharmaceuticals, Inc. (NYSE Amex:RNN), a clinical stage pharmaceutical company commercializing potential best in class oncology and CNS therapeutics, and TheraTarget, Inc., a developer of innovative polymer therapeutics for the treatment of cancer, today announced the formation of a joint research collaboration agreement. Under the terms of the agreement, TheraTarget will synthesize and supply Rexahn with polymer-drug conjugate products, which are part of Rexahn’s polymer-based nanomedicine portfolio.