From Earlier: AstraZeneca and Targacept Announce Remaining TC-5214 Phase 3 Efficacy Studies Do Not Meet Primary Endpoint, Regulatory Filing Will Not Be Pursued

AstraZeneca AZN and Targacept, Inc. TRGT today announced top-line results from the remaining Phase 3 studies investigating efficacy, tolerability and safety of TC-5214 as an adjunct therapy to an antidepressant in patients with major depressive disorder (MDD) who did not respond adequately to initial antidepressant treatment. RENAISSANCE 4 and RENAISSANCE 5, both efficacy and tolerability studies, did not meet the primary endpoint of change on the Montgomery-Asberg Depression Rating Scale (MADRS) total score after eight weeks of adjunct treatment with TC-5214 as compared to placebo. In both RENAISSANCE 4 and RENAISSANCE 5, as well as in the previously completed RENAISSANCE 2 and RENAISSANCE 3 studies, every dose group (TC-5214 and placebo) showed at least a 40 percent improvement in MADRS total score after eight weeks of adjunct treatment. TC-5214 was overall well tolerated in RENAISSANCE 4 and RENAISSANCE 5 with an adverse event profile generally consistent with prior clinical trials. In RENAISSANCE 7, a long-term study designed primarily to evaluate the safety of TC-5214, together with an antidepressant treatment, for one year, TC-5214 was overall well tolerated, with an adverse event profile generally consistent with prior clinical trials.