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  • Title: A double-blind, randomized, placebo-controlled study of quetiapine as adjunctive treatment for adolescent mania.
    Author: Delbello MP, Schwiers ML, Rosenberg HL, Strakowski SM.
    Journal: J Am Acad Child Adolesc Psychiatry; 2002 Oct; 41(10):1216-23. PubMed ID: 12364843.
    Abstract:
    OBJECTIVES: This randomized, double-blind, placebo-controlled study examined the efficacy and tolerability of quetiapine in combination with divalproex (DVP) for acute mania in adolescents with bipolar disorder. It was hypothesized that DVP in combination with quetiapine would be more effective than DVP alone for treating mania associated with adolescent bipolar disorder. Furthermore, it was hypothesized that quetiapine would be well tolerated. METHOD: Thirty manic or mixed bipolar I adolescents (12-18 years) received an initial DVP dose of 20 mg/kg and were randomly assigned to 6 weeks of combination therapy with quetiapine, which was titrated to 450 mg/day (n = 15) or placebo (n = 15). Primary efficacy measures were change from baseline to endpoint in Young Mania Rating Scale (YMRS) score and YMRS response rate. Safety and tolerability were assessed weekly. RESULTS: The DVP + quetiapine group demonstrated a statistically significantly greater reduction in YMRS scores from baseline to endpoint than the DVP + placebo group (F(1,27) = 5.04, p =.03). Moreover, YMRS response rate was significantly greater in the DVP + quetiapine group than in the DVP + placebo group (87% versus 53%; Fisher exact test, p =.05). No significant group differences from baseline to endpoint in safety measures were noted. Sedation, rated as mild or moderate, was significantly more common in the DVP + quetiapine group than in the DVP + placebo group. CONCLUSIONS: The findings of this study indicate that quetiapine in combination with DVP is more effective for the treatment of adolescent bipolar mania than DVP alone. In addition, the results suggest that quetiapine is well tolerated when used in combination with DVP for the treatment of mania.
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