The Efficacy and Safety of Blonanserin Compared with Haloperidol in Acute-Phase Schizophrenia A Randomized, Double-Blind, Placebo-Controlled, Multicentre Study
The Efficacy and Safety of Blonanserin Compared with Haloperidol in Acute-Phase Schizophrenia A Randomized, Double-Blind, Placebo-Controlled, Multicentre Study
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DOI:
10.2165/00023210-200923070-00006
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发表时间:
2009-01-01
期刊:
影响因子:
6
通讯作者:
Terazawa, Yoshikatsu
中科院分区:
文献类型:
--
作者:
Garcia, Esther;Robert, Marta;Terazawa, Yoshikatsu
Background: Blonanserin is a novel atypical antipsychotic agent with potent dopamine D-2 and serotonin 5-HT2 antagonist properties. It may potentially have a lower incidence of adverse events than other antipsychotic agents.Objective: To determine the efficacy and safety of three doses of blonanserin compared with placebo and haloperidol in patients with acute-phase schizophrenia.Methods: This was a 6-week, randomized, double-blind, placebo- and haloperidol-control led, international, multicentre study. Patients with an acute exacerbation of their schizophrenia, with a Positive and Negative Syndrome Scale (PANSS) score >= 70 and a Clinical Global Impression Severity of Illness (CGI-S) score >= 4 ('moderately ill') [with no decrease >= 20% or >= 1 point, respectively, during the wash-out period] were randomized into one of five treatment groups (blonanserin 2.5, 5 or 10 mg, haloperidol 10 mg or placebo once daily). Patients were assessed weekly for clinical efficacy, adverse events, extrapyramidal symptoms (EPS) and drug compliance, and were assessed biweekly for other safety variables.Results: All 307 randomized patients received at least one dose of study medication and 228 (74.3%) completed the study. The mean reduction in PANSS total score at week 6 was significantly greater with all active treatments compared with placebo (-12.58; p