Overview Study Evaluating Bifeprunox in Bipolar Depression Status: Completed Trial end date: 2007-10-01 Target enrollment: Participant gender: Summary The purpose of the study is to investigate whether eight weeks of treatment with flexible doses of Bifeprunox is superior to treatment with placebo in depressed patients with bipolar disorder. Phase: Phase 3 Details Lead Sponsor: Wyeth is now a wholly owned subsidiary of PfizerCollaborator: Solvay Pharmaceuticals