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Browse 1,356 clinical trials for schizophrenia. Find studies that match your criteria and connect with research centers.
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Showing 1281-1300 of 1,356 trials
NCT00848432
This study set out to determine the duration of maintenance treatment with therapeutic risperidone dose in schizophrenia. In a multi-center, open label, randomized, controlled study design, patients with schizophrenia who were clinically stabilized following an acute episode were randomly assigned to a 'maintenance group' (optimal therapeutic doses continued for at least 1 year), a 4-week group (optimal therapeutic doses continued for 4 weeks followed by a 50% dose reduction that was maintained for at least 11 months) or a 26-week group (optimal therapeutic doses continued for 26 weeks followed by a 50% dose reduction for at least another 6 months).
NCT00546403
The purpose of this study is to test the effect of modafinil on the negative symptoms, such as blunted affect and social withdrawal, of schizophrenic patients and to determine modafinil's effect on excessive daytime sleepiness. A secondary purpose of the study is to examine the effect of modafinil on cognitive functioning of schizophrenic patients.
NCT00743847
The primary objective of this protocol is to assess the efficacy of two dose strengths of varenicline (0.5 mg BID and 1mg BID) as adjunctive treatment for cognitive impairment in symptomatically stable outpatient schizophrenic subjects who are receiving treatment with atypical antipsychotic medications. A secondary objective is to evaluate the safety and tolerability of two doses of varenicline in symptomatically stable schizophrenic subjects who are receiving treatment with atypical antipsychotic medications.