Aripiprazole plus divalproex for recently manic or mixed patients with bipolar I disorder: a 6-month, randomized, placebo-controlled, double-blind maintenance trial.
Author(s): Woo YS, Bahk WM, Chung MY, Kim DH, Yoon BH, Lee JH, Ahn YM, Chung SK, Kim JG, Lee KH, Paik KC
Affiliation(s): Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
Publication date & source: 2011-12-02, Hum Psychopharmacol., [Epub ahead of print]
OBJECTIVES: The goal of this study was to investigate the safety and efficacy in preventing relapse of a mood episode in recently manic or mixed episode patients with bipolar I disorder stabilized with aripiprazole and divalproex combination. METHODS: This randomized, 24-week, double-blind, placebo-controlled multicenter study enrolled patients from 23 centers in Korea. Patients with bipolar I disorder who had manic or mixed episode entered a 6-week open-label stabilization phase. After meeting stabilization criteria, 83 patients were randomly assigned to placebo + divalproex or aripiprazole + divalproex treatment group for the 24-week, double-blind maintenance phase. RESULTS: During the 6-month double-blind treatment, the time to relapse of any mood episode in the aripiprazole group was longer than the placebo group, but the difference did not reach statistical significance (p = 0.098). After controlling for mean divalproex level, the time to depressive episode relapse in the aripiprazole group was longer than those in the placebo group (p = 0.029). Weight gain (>/=7% increase) occurred in 22.5% aripiprazole group and 18.6% placebo group (p = 0.787). CONCLUSIONS: In this study, relapse of mood episode occurred fewer and later for aripiprazole with divalproex treatment than divalproex monotherapy, but the differences were not statistically significant. Copyright (c) 2011 John Wiley & Sons, Ltd. Copyright (c) 2011 John Wiley & Sons, Ltd.