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The main aim of the trial is to study whether a change of medication in non-responders to a two-weeks antipsychotic drug trial is more effective than continued treatment with the same antipsychotic. Hypothesis: Non-responders who are switched at 2 weeks to another antipsychotic are more frequently in symptomatic remission at week 8 than non-responders who stay on the same antipsychotic
The patients will be randomised to a double-blind 2 week run in phase with fixed doses of either oral amisulpride 800 mg/day or olanzapine 20mg/day.
Those participants who have not responded to treatment at two weeks (PANSS improvement <25%) will be randomised to a 6 week double blind flexible dose phase:
1. Experimental intervention: switch to the other antipsychotic (oral olanzapine 5-20mg/d or oral amisulpride 200-800 mg/d)
2. Control intervention: continuation with the same drug as in the first 2 weeks in flexible dose ranges as above for another six weeks Those participants who have responded at week 2 (≥25% PANSS reduction) will continue on the same drug in flexible dose ranges as above Total duration of intervention per patient: 8 weeks
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Olanzapine or amisulpride
Psychiatrische Klinik und Poliklinik fuer Psychiatrie und Psychotherapie der Technischen Universitaet Muenchen am Klinikum recht
Technische Universität München
Published on BioPortfolio: 2014-07-23T21:11:25-0400
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A type of schizophrenia characterized by abnormality of motor behavior which may involve particular forms of stupor, rigidity, excitement or inappropriate posture.
An obsolete concept, historically used for childhood mental disorders thought to be a form of schizophrenia.
A type of schizophrenia characterized by frequent incoherence; marked loosening of associations, or grossly disorganized behavior and flat or grossly inappropriate affect that does not meet the criteria for the catatonic type; associated features include extreme social withdrawal, grimacing, mannerisms, mirror gazing, inappropriate giggling, and other odd behavior. (Dorland, 27th ed)
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