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Monday 01 May 2000

[New i.e. atypical neuroleptic agents for negative symptoms of schizophrenia: results and methodological problems of evaluation]

By: Moller HJ.

Nervenarzt 2000 May;71(5):345-53

The results of controlled studies of the efficacy of the new atypical neuroleptics in treating negative symptoms show that these antipsychotics have a more pronounced effect on negative symptoms in acute schizophrenic patients than the classical neuroleptics. Supplementary complex statistical analyses substantiate that the increased efficacy of the atypical neuroleptics in treating negative symptoms can only partially be explained by indirect effects of better extrapyramidal tolerability, better effects on productive psychotic symptoms, etc. Instead, it is due largely to the stronger direct effect of these atypical neuroleptics. Clinical studies to evaluate their efficacy in chronic schizophrenic patients with stable, predominantly negative symptoms are still mostly lacking. First results support the presumption that atypical neuroleptics have a direct effect. Parallel to the evaluation of the new atypical neuroleptics, important progress has been made in the methodology of clinical studies in this area.

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