A practical clinical trial comparing haloperidol, risperidone, and olanzapine for the acute treatment of first-episode nonaffective psychosis

The Journal of Clinical Psychiatry
Benedicto Crespo-FacorroJosé Luis Vázquez-Barquero

Abstract

Randomized controlled drug trials have demonstrated that antipsychotic medication is effective to rapidly improve psychotic symptomatology in first-episode psychosis. However, these results may not be generalizable to routine clinical practice. We evaluated the effectiveness, tolerability, and safety of olanza-pine, risperidone, and haloperidol in individuals with first-episode nonaffective psychosis who are representative of clinical practice and who are treated in routine clinical settings. 172 patients participated in a practical clinical trial and were randomly assigned to haloperidol (N = 56), risperidone (N = 61), and olanzapine (N = 55). The mean modal daily doses were 5.4 mg/day for halo-peridol, 4 mg/day for risperidone, and 15.3 mg/day for olanzapine; 98.3% of subjects were drug naive at baseline. Data from clinical measures of treatment response and tolerability and safety data from the 6-week acute phase of a large epidemiologic and longitudinal (February 2001 to February 2005) intervention program of first-episode psychosis (schizophrenia spectrum disorders, DSM-IV criteria) are reported. All 3 treatments showed similar effectiveness in reducing the severity of general, negative, and positive symptomatology after 6...Continue Reading

Citations

Dec 17, 2008·Neurotoxicity Research·José Manuel Rodríguez-SánchezJosé Luis Vázquez-Barquero
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