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Ziprasidone versus olanzapine, risperidone or quetiapine in patients with chronic schizophrenia: a 12-week open-label, multicentre clinical trial.

Author(s): Lublin H, Haug HJ, Koponen H, Sigmundsson T, Kolb SA

Affiliation(s): Psychiatric University Center Glostrup, University of Copenhagen, Glostrup, Denmark. henlub01@glo.regionh.dk

Publication date & source: 2009, World J Biol Psychiatry., 10(4 Pt 3):710-8.

Publication type: Comparative Study; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't

The efficacy, safety and tolerability of ziprasidone versus the comparators olanzapine, risperidone or quetiapine were investigated in adult patients with chronic schizophrenia, schizoaffective and schizophreniform disorders, with lack of efficacy or intolerance to their previous antipsychotic treatment based on clinical judgement of the investigator. A total of 293 patients were randomized to 12 weeks treatment with either ziprasidone 80-160 mg/day (n=147) or with one of the comparator drugs (n=146). In the latter group the investigator could choose between olanzapine 10-20 mg/day (n=24), risperidone 4-8 mg/day (n=22) or quetiapine 300-750 mg/day (n=97). The study comprised four visits including a baseline examination prior to randomization and further examinations at the end of weeks 1, 4 and 12. Ziprasidone was non-inferior (defined as a difference of 7 units or less on the PANSS scale to the disadvantage of ziprasidone) to the composite group (olanzapine, risperidone or quetiapine) on the total PANSS score as well as on all subscores (P<0.0001); there were no significant between-group differences in the CGI-S and I and UKU scores. Ziprasidone-treated patients lost an average of 2.1 kg in the 12 weeks of the study, the mean weight for risperidone and quetiapine remained unchanged, and patients receiving olanzapine gained 3.1 kg on average.

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