DOR BioPharma Announces Potential $30 Million North American Partnership Agreement with Sigma-Tau Pharmaceuticals for orBec(R) in the Treatment of Graft-versus-Ho...(ransplantation centers in the US and Fra...),Health

Date:2/12/2009

ransplantation centers in the US and France. Although orBec(R) did not achieve statistical significance in the primary endpoint of its pivotal trial, namely median time-to-treatment failure through Day 50 (p-value 0.1177), orBec(R) did achieve statistical significance in other key secondary endpoints such as the proportion of patients free of GVHD at Day 50 (p-value 0.05) and Day 80 (p-value 0.005) and the median time to treatment failure through Day 80 (p-value 0.0226), as well as a 66% reduction in mortality among patients randomized to orBec(R) at 200 days post-transplant with only 5 patient (8%) deaths in the orBec(R) group compared to 16 patient (24%) deaths in the placebo group (p-value 0.0139). At one year post randomization in the pivotal Phase 3 trial, 18 patients (29%) in the orBec(R) group and 28 patients (42%) in the placebo group died within one year of randomization (46% reduction in mortality, hazard ratio 0.54, 95% CI: 0.30, 0.99, p=0.04, stratified log-rank test).

In the Phase 2 study, the primary endpoint was the clinically relevant determination of whether GI GVHD patients at Day 30 (the end of treatment) had a durable GVHD treatment response as measured by whether or not they were able to consume at least 70% of their estimated caloric requirement. The GVHD treatment response at Day 30 was 22 of 31 (71%) vs. 12 of 29 (41%) in the orBec(R) and placebo groups, respectively (p-value 0.02). Additionally, the GVHD treatment response at Day 40 (10 days post cessation of therapy) was 16 of 31 (52%) vs. 5 of 29 (17%) in the orBec(R) and placebo groups, respectively (p-value 0.007).

orBec(R) represents a first-of-its-kind oral, locally acting therapy tailored to treat the gastrointestinal manifestation of GVHD, the organ system where GVHD is most frequently encountered and highly problematic. orBec(R) is intended to reduce the need for systemic immunosuppressive drugs to treat GI GVHD. Beclomethasone
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SOURCE DOR BioPharma, Inc. Copyright©2009 PR Newswire. All rights reserved

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