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AstraZeneca, Targacept initiate depressive disorder drug Phase 2b trial

AstraZeneca and Targacept have initiated a Phase 2b clinical trial of TC-5214, a nicotinic channel blocker, as a ‘switch’ monotherapy treatment for patients with major depressive disorder (MDD) who do not respond adequately to initial antidepressant therapy.

The study is in addition to the companies’ joint Phase 3 RENAISSANCE Program for TC-5214 as an adjunctive treatment for MDD.

The RENAISSANCE Program is designed to support a new drug application filing planned for the second half of 2012 and a marketing authorization application filing in Europe planned for 2015.

The primary outcome measure for the study is change from double-blind baseline at the end of the dosing period for TC-5214 on the Montgomery-Asberg Depression Rating Scale (MADRS) as compared to placebo.