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Risperidone versus clozapine in treatment-resistant schizophrenia: a randomized pilot study.
K Wahlbeck1, M Cheine, K Tuisku
1Department of Psychiatry, University of Helsinki, Finland. Kristian.Wahlbeck@Helsinki.Fi
Progress in Neuro-Psychopharmacology & Biological Psychiatry
|October 21, 2000
Summary
Risperidone may be as effective as clozapine for treating refractory schizophrenia in real-world settings. This study supports further pragmatic trials to confirm these findings for schizophrenia treatment.
Area of Science:
- Psychiatry
- Clinical Pharmacology
Background:
- Clozapine is the standard treatment for refractory schizophrenia.
- Risperidone, an atypical antipsychotic, is a potential alternative.
Purpose of the Study:
- To compare the effectiveness of risperidone versus clozapine in everyday practice.
- To assess the feasibility of a pragmatic trial for schizophrenia treatment.
Main Methods:
- Randomized open-label trial with blinded outcome assessment.
- 19 patients with refractory schizophrenia received either clozapine or risperidone for 10 weeks.
Main Results:
- No significant differences in clinical improvement (20% PANSS score reduction) between risperidone and clozapine groups.
- Similar outcomes in positive/negative symptoms, disease severity, and functioning.
- Dropout rates were higher in the clozapine group.
Conclusions:
- Risperidone may be an effective alternative to clozapine for refractory schizophrenia.
- Pragmatic trials are feasible and necessary to further investigate treatment differences.
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