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Original Research

Adjunctive Oral Ziprasidone in Patients With Acute Mania Treated With Lithium or Divalproex, Part 1: Results of a Randomized, Double-Blind, Placebo-Controlled Trial

Gary S. Sachs, MD; Douglas G. Vanderburg, MD, MPH; Onur N. Karayal, MD, MPH; Sheela Kolluri, PhD; Mary Bachinsky, MSc; and Idil Cavus, MD, PhD

Published: November 15, 2012

Article Abstract

Objective: To assess the efficacy and safety of adjunctive ziprasidone in subjects with acute mania treated with lithium or divalproex, with an inadequate response to the mood stabilizer.

Method: The study enrolled subjects aged 18-65 years who had a primary DSM-IV diagnosis of bipolar I disorder, with the most recent episode manic or mixed, with or without rapid cycling, and a Young Mania Rating Scale (YMRS) score ≥ 18. Subjects were randomized under double-blind conditions to receive ziprasidone, 20 to 40 mg (n = 226) or 60 to 80 mg (n = 232), or placebo (n = 222) twice a day for 3 weeks in addition to their mood stabilizer. The primary efficacy variable was change in YMRS scores from baseline to 3 weeks. Secondary efficacy measures included the Montgomery-Asberg Depression Rating Scale, Positive and Negative Syndrome Scale, Clinical Global Impressions-Severity of Illness and -Improvement scales, and Global Assessment of Functioning. Computer-administered YMRS was included for quality control and to evaluate study performance. The study was conducted between April 2006 and December 2008.

Results: Least-squares mean ± standard error changes in YMRS scores from baseline to week 3 were -10.2 ± 0.80 in the mood stabilizer + ziprasidone 60- to 80-mg group, -11.0 ± 0.80 in the mood stabilizer + ziprasidone 20- to 40-mg group, and -9.5 ± 0.80 in the mood stabilizer + placebo group. Mean treatment differences between adjunctive ziprasidone groups and placebo were not statistically significant on primary or secondary efficacy measures. Ziprasidone was well tolerated.

Conclusions: Adjunctive ziprasidone treatment failed to separate from mood stabilizer (lithium or divalproex) treatment on primary and secondary end points.

Trial Registration: ClinicalTrials.gov identifier: NCT00312494

J Clin Psychiatry 2012;73(11):1412-1419

Submitted: September 12, 2011; accepted July 9, 2012 (doi:10.4088/JCP.11m07388).

Corresponding author: Gary S. Sachs, MD, Bipolar Clinic and Research Program, Massachusetts General Hospital, 50 Staniford St, 5th Floor, Boston MA 02114 (SachsG@aol.com).

Volume: 73

Quick Links: Bipolar Disorder

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