( THE WOODLANDS Texas--(BUSINESS WIRE)--...)Opexa Presents Tovaxin Research at Federation of Clinical,Immunology Societies Annual Meeting,Health

THE WOODLANDS, Texas--(BUSINESS WIRE)--Jun 11, 2007 - Opexa Therapeutics, Inc. (NASDAQ:OPXA), a company involved in the development and commercialization of cell therapies, made a poster presentation at the 2007 Annual Meeting of the Federation of Clinical Immunology Societies (FOCIS) in San Diego June 7-11 at the Sheraton San Diego Hotel & Marina. The poster, entitled "Identifying New Immunodominant Myelin Peptides in Relapsing Remitting Multiple Sclerosis Patients" was presented on Sunday, June 10.

The presentation covered laboratory and clinical data from the Company's proprietary T-cell vaccination technology for the treatment of multiple sclerosis. Key highlights of research detailed in the poster presentation include:

-- Data accumulated from over 173 assays (using a T-cell Epitope Analysis Assay (EAA)) have allowed Opexa to identify several myelin protein peptides from myelin basic protein (MBP), myelin proteolipid protein (PLP) and myelin oligodendrocyte glycoprotein (MOG) as being immunodominant, including some peptides never before reported, and others as being non-reactive,

-- The EAA can be utilized to screen additional or combinations of peptides that have biological significance and;

-- These results have permitted Opexa to optimize the number of myelin peptides across the lengths of MBP, PLP and MOG in the screening assay for Tovaxin(TM) vaccine production to qualify subjects for Opexa's current 150-patient Phase IIb safety and efficacy clinical trial (TERMS).

"These findings mark an important development for Tovaxin, which is a patient-specific autologous T-cell vaccine, because it helps us qualify subjects for our current clinical trial and improves production of the vaccine. The EAA is an important assay for further refinement of the T-cell vaccination technology, which is truly personalized, to make the therapy as efficacious as possible for each patient," said
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