THE WOODLANDS, Texas--(BUSINESS WIRE)--Opexa Therapeutics, Inc. (NASDAQ:OPXA), a company developing a novel T-cell therapy for multiple sclerosis (MS), today announced that Jaye Thompson, Ph.D. has been hired to lead the Company’s efforts to further the clinical development of Tovaxin®, Opexa’s flagship therapy for MS. Additionally, Dawn McGuire, M.D., Opexa’s expert clinical advisor and member of the Company’s Clinical Advisory Board has agreed to further increase her advisory role in the Company and to represent Opexa as its acting Chief Medical Officer.