Opexa Therapeutics, Inc. (NASDAQ: OPXA), a biotechnology company developing Tcelna ®, a patient-specific T-cell immunotherapy for the treatment of multiple sclerosis (MS), today announced that Neil K. Warma, Opexa’s President and Chief Executive Officer, will deliver a corporate presentation at the Aegis Capital Corp. 2013 Healthcare Conference. The conference will be held September 25-28 th at The Encore at Wynn Las Vegas. Opexa’s presentation will occur at 8:30 a.m. (PDT) on Friday, September 27, 2013, and will include an overview of the Company’s ongoing clinical development program for Tcelna, the Company’s lead therapy for MS. About Opexa Opexa’s mission is to lead the field of Precision Immunotherapy™ by aligning the interests of patients, employees and shareholders. The Company’s leading therapy candidate, Tcelna ®, is a personalized T-cell immunotherapy currently in a Phase IIb clinical development program (the Abili-T trial) for the treatment of Secondary Progressive Multiple Sclerosis. Tcelna is derived from T-cells isolated from the patient’s peripheral blood, expanded ex vivo, and reintroduced into the patients via subcutaneous injections. This process triggers a potent immune response against specific subsets of autoreactive T-cells known to attack myelin. About Multiple Sclerosis (MS) Multiple Sclerosis is a chronic, inflammatory condition of the central nervous system and is the most common, non-traumatic, disabling neurological disease in young adults. It is estimated that approximately two million people have MS worldwide. While symptoms can vary, the most common symptoms of MS include blurred vision, numbness or tingling in the limbs and problems with strength and coordination. The relapsing forms of MS are the most common. The Secondary Progressive form of MS represents about a third of the MS patient population. For more information visit the Opexa Therapeutics website at www.opexatherapeutics.com. About Tcelna Tcelna is a potential personalized therapy that is under development to be specifically tailored to each patient's disease profile. Tcelna is manufactured using ImmPath™, Opexa's proprietary method for the production of a patient-specific T-cell immunotherapy, which encompasses the collection of blood from the MS patient, isolation of peripheral blood mononuclear cells, generation of an autologous pool of myelin-reactive T-cells (MRTCs) raised against selected peptides from myelin basic protein (MBP), myelin oligodendrocyte glycoprotein (MOG) and proteolipid protein (PLP), and the return of these expanded, irradiated T-cells back to the patient. These attenuated T-cells are reintroduced into the patient via subcutaneous injection to trigger a therapeutic immune system response.