THE WOODLANDS, Texas--(BUSINESS WIRE)--Opexa Therapeutics, Inc. (NASDAQ: OPXA), a biotechnology company developing Tovaxin®, a novel T-cell therapy for multiple sclerosis (MS), announced today that the Company has executed an agreement with Pharmaceutical Research Associates, Inc. (PRA) to provide contract research organization (CRO) services to support Opexa’s upcoming Phase IIb clinical trial for Tovaxin in patients with Secondary Progressive multiple sclerosis (SPMS).
