MARLBOROUGH, Mass.--(BUSINESS WIRE)--Sepracor Inc. (Nasdaq: SEPR) today announced that it has completed the analysis and validation of the preliminary results of a Phase II, 514-patient study evaluating the efficacy and safety of SEP-225289 for the treatment of Major Depressive Disorder, including patients with melancholic and atypical features. Sepracor determined that SEP-225289 did not meet the primary efficacy endpoint, which was a reduction in symptoms of depression following eight weeks of treatment, as assessed using the clinician-rated, 17-item HAM-D scale (Hamilton Depression Rating Scale, a standard scale used to assess depression in clinical trials and consisting of a list of symptoms commonly associated with depression). The positive control in the study (venlafaxine extended-release) did achieve separation from placebo that was statistically significant on the primary endpoint.
