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  • Title: One-year, randomized, open trial comparing olanzapine, quetiapine, risperidone and ziprasidone effectiveness in antipsychotic-naive patients with a first-episode psychosis.
    Author: San L, Arranz B, Perez V, Safont G, Corripio I, Ramirez N, Dueñas R, Alvarez E.
    Journal: Psychiatry Res; 2012 Dec 30; 200(2-3):693-701. PubMed ID: 22954905.
    Abstract:
    The aim of this study was to compare the 12-month effectiveness of several second-generation antipsychotic drugs, with that of haloperidol in never-treated patients with first-episode psychosis. In total, 114 patients without life time exposure to any psychotropic medication were randomized to haloperidol, olanzapine, risperidone, quetiapine or ziprasidone. Primary outcome was time to all-cause discontinuation. Secondary outcomes included discontinuation rates and symptom change as measured by the Positive and Negative Syndrome Scale (PANSS). The overall discontinuation rate 64%. At 12 months, the proportion of patients discontinuing treatment was 40.0% for olanzapine, 56.5% for quetiapine, 64.0% for risperidone, 80.0% for ziprasidone and 85.7% for haloperidol. Mean time to antipsychotic discontinuation was higher in patients randomized to second-generation antipsychotics than in those taking haloperidol. Significantly lower discontinuation was noted in patients on olanzapine than on haloperidol, or ziprasidone. Our results suggest that olanzapine might lead to longer treatment continuation in treatment naïve FEP patients than haloperidol and, possibly ziprasidone. Global psychopathology was significantly less reduced by haloperidol than with each individual SGA in this earliest phase of treatment.
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