The Optimization of Treatment and Management of Schizophrenia in Europe (OPTiMiSE) trial: rationale for its methodology and a review of the effectiveness of switching antipsychotics
Background: Most of the 13 542 trials contained in the Cochrane Schizophrenia Group’s register just tested the general efficacy of pharmacological or psychosocial interventions. Studies on the subsequent treatment steps, which are essential to guide clinicians, are largely missing. This knowledge ga...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
1 May 2015
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| In: |
Schizophrenia bulletin
Year: 2015, Volume: 41, Issue: 3, Pages: 549-558 |
| ISSN: | 1745-1701 |
| DOI: | 10.1093/schbul/sbv019 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1093/schbul/sbv019 Verlag, Volltext: https://academic-oup-com.ezproxy.medma.uni-heidelberg.de/schizophreniabulletin/article/41/3/549/2375119 
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| Author Notes: | Stefan Leucht, Inge Winter-van Rossum, Stephan Heres, Celso Arango, W. Wolfgang Fleischhacker, Birte Glenthøj, Marion Leboyer, F. Markus Leweke, Shôn Lewis, Phillip McGuire, Andreas Meyer-Lindenberg, Dan Rujescu, Shitij Kapur, René S. Kahn, and Iris E. Sommer |
MARC
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| 520 | |a Background: Most of the 13 542 trials contained in the Cochrane Schizophrenia Group’s register just tested the general efficacy of pharmacological or psychosocial interventions. Studies on the subsequent treatment steps, which are essential to guide clinicians, are largely missing. This knowledge gap leaves important questions unanswered. For example, when a first antipsychotic failed, is switching to another drug effective? And when should we use clozapine? The aim of this article is to review the efficacy of switching antipsychotics in case of nonresponse. We also present the European Commission sponsored “Optimization of Treatment and Management of Schizophrenia in Europe” (OPTiMiSE) trial which aims to provide a treatment algorithm for patients with a first episode of schizophrenia. Methods: We searched Pubmed (October 29, 2014) for randomized controlled trials (RCTs) that examined switching the drug in nonresponders to another antipsychotic. We described important methodological choices of the OPTiMiSE trial. Results:We found 10 RCTs on switching antipsychotic drugs. No trial was conclusive and none was concerned with first-episode schizophrenia. In OPTiMiSE, 500 first episode patients are treated with amisulpride for 4 weeks, followed by a 6-week double-blind RCT comparing continuation of amisulpride with switching to olanzapine and ultimately a 12-week clozapine treatment in nonremitters. A subsequent 1-year RCT validates psychosocial interventions to enhance adherence. Discussion: Current literature fails to provide basic guidance for the pharmacological treatment of schizophrenia. The OPTiMiSE trial is expected to provide a basis for clinical guidelines to treat patients with a first episode of schizophrenia. | ||
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