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J Clin Psychiatry. 2004 May;65(5):707-14.

Risperidone in combination with mood stabilizers: a 10-week continuation phase study in bipolar I disorder.

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  • 1University of Texas Health Science Center, San Antonio, TX 78229, USA. bowdenc@uthscsa.edu

Abstract

BACKGROUND:

Combination therapy (risperidone and a mood stabilizer) for patients with a history of bipolar disorder (DSM-IV) and hospitalized for treatment of a manic episode was assessed in a 13-week study.

METHOD:

Subjects received flexible doses of a mood stabilizer (lithium or divalproex) plus placebo, risperidone, or haloperidol in a 3-week double-blind study. They could then enter a 10-week open-label study during which they received risperidone combined with a mood stabilizer.

RESULTS:

Of the 156 patients enrolled in the 3-week study, 85 entered the 10-week open-label extension, of whom 48 completed 10 weeks of treatment. The mean +/- SE doses of risperidone were 3.8 +/- 0.3 mg/day during the 3-week study and 3.1 +/- 0.2 mg/day during the 10-week study. At double-blind endpoint, mean reductions in Young Mania Rating Scale (YMRS) scores were significantly greater in patients receiving risperidone plus mood stabilizer than in those receiving placebo plus mood stabilizer (-14.3 vs. -8.2, p <.001). Further significant (p <.001) reductions were seen during the 10 weeks of treatment with risperidone plus mood stabilizer. Symptom remission (YMRS score <or= 12) was seen in 38 patients (79%) at the end of the 10-week study. Scores on the Brief Psychiatric Rating Scale, Hamilton Rating Scale for Depression, and Clinical Global Impressions scale improved significantly (p <.05) during both the 3-week and 10-week studies. Treatment was well tolerated, and modest weight gain was observed during the 13-week study period.

CONCLUSION:

The combination of risperidone and a mood stabilizer was efficacious and well tolerated in the continuation treatment of patients initially hospitalized for the management of an acute manic episode.

PMID:
15163260
[PubMed - indexed for MEDLINE]
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