Rapid Antimanic Effect of Risperidone Monotherapy: A 3-Week Multicenter, Double-Blind, Placebo-Controlled Trial
2004
OBJECTIVE: This study evaluated the efficacy and safety of risperidone monotherapy in the treatment of acute bipolar mania. METHOD: Patients with DSM-IV bipolar I disorder experiencing an acute manic episode (baseline Young Mania Rating Scale score ≥20) were randomly assigned to 3 weeks of treatment with risperidone (flexible dose: 1–6 mg/day) or placebo. The primary efficacy measure was the mean baseline-to-endpoint change in total score on the Young Mania Rating Scale. Secondary efficacy measures included the Clinical Global Impression (CGI) severity rating and scores on the Montgomery-Asberg Depression Rating Scale, Positive and Negative Syndrome Scale, and Global Assessment Scale (GAS). Safety assessments consisted of monitoring adverse events, vital signs, electrocardiogram and laboratory results, and scores on the Extrapyramidal Symptom Rating Scale. RESULTS: Subjects (N=259) received treatment with either risperidone (N=134) or placebo (N=125). The mean modal dose of risperidone was 4.1 mg/day. Imp...
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