Opexa Therapeutics (OPXA) Announces Additional Favorable Data with Tovaxin
Opexa Therapeutics, Inc. (NASDAQ: OPXA) announced results from further analysis of the double-blind, placebo-controlled, 52-week Phase IIb TERMS clinical study of 150 patients with Relapsing Remitting MS (RRMS). This analysis evaluated patients with an annualized relapse rate of one or greater at study entry (ARR>=1). More than 83% of the Tovaxin-treated group (n=85) remained relapse free at one year and the annualized relapse rate after treatment decreased to 0.20, a 42% reduction compared to placebo.
The results of this expanded analysis confirm those found in the previously-reported per-protocol analysis of patients in the TERMS study with ARR>1. This post-hoc analysis which represents 86% of the total patient population in the TERMS study was conducted to evaluate Tovaxin treatment among study patients with the same baseline disease activity that is being targeted for inclusion in the forthcoming Phase IIb study. Along with a marked reduction in relapses, 73% of the Tovaxin-treated patients with ARR>=1 showed stabilization or improvement in MS disability, including 16.5% with a sustained improvement in the Expanded Disability Status Scale (EDSS) of at least one full point. On MRI, the Tovaxin-treated group also demonstrated a reduction in brain atrophy and fewer inflammatory brain lesions that progressed to "black holes," as compared to the placebo-treated group. Treatment with Tovaxin was well tolerated, with no serious adverse events reported in any Tovaxin-treated patient.
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