Randomized, Double-Blind, Placebo-Controlled Study of Paliperidone Extended-Release and Quetiapine in Inpatients With Recently Exacerbated Schizophrenia
2009
Objective: The authors compared paliperidone extended-release and quetiapine in patients with recently exacerbated schizophrenia requiring hospitalization. Method: In a 6-week double-blind study, inpatients with a recent exacerbation of schizophrenia were randomly assigned to treatment with paliperidone extended-release, quetiapine, or placebo. A 2-week monotherapy phase was followed by a 4-week additive-therapy phase. Target doses were at the upper end of recommended ranges: paliperidone extended-release, 9 or 12 mg/day, and quetiapine, 600 or 800 mg/day. The primary endpoint was the difference in mean total change score on the Positive and Negative Syndrome Scale (PANSS) between paliperidone extended-release and quetiapine at the 2-week monotherapy phase endpoint. Results: Six-week completion rates were 77.5% (124/160) with paliperidone extended-release, 66.7% (106/159) quetiapine, and 63.8% (51/80) placebo. Improvement in mean PANSS total change score was greater with paliperidone extended-release than...
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