Journal
PHARMACOPSYCHIATRY
Volume 45, Issue 6, Pages 236-240Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0032-1301884
Keywords
acute exacerbation; antipsychotic agents; schizophrenia; switch; ziprasidone
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Funding
- Pfizer Italia s.r.l.
- Pfizer
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Introduction: The long-term maintenance of a stable condition is an important aim of schizophrenia therapy, which frequently requires the switch between 2 antipsychotic agents. This 8-week multicenter study, conducted in Italy, evaluates the switch from a previous antipsychotic to ziprasidone. Methods: Adult acute schizophrenic patients requiring a change in antipsychotic for lack of efficacy or tolerability issues took ziprasidone 20-80 mg/bid. Dosages could be adjusted during the study. The primary efficacy outcomes were the differences in positive and negative syndrome scale (PANSS) and clinical global impression severity (CGI-S) scores from baseline to study end. Other efficacy variables were clinical global impression improvement, global assessment of functioning, patient preference scale and drug attitude inventory. Results: 189 patients were evaluated; the mean (+/- SD) ziprasidone dose was 95.9 +/- 34.5 mg/day. PANSS and CGI-S scores significantly decreased throughout the study. All secondary outcomes significantly improved at the end of the study vs. baseline values. Ziprasidone was well tolerated; 13 patients reported a QTc prolongation (mild in 12 patients). Discussion: Notwithstanding the limitations of any non-comparative study, these results suggest that ziprasidone may be an effective and well-tolerated option in acute schizophrenia patients who discontinued a previous antipsychotic agent.
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