The use of cognitive-behavior therapy (CBT) in addition to antipsychotic regimen to treat persistent psychotic symptoms of schizophrenia is growing. The aim of this study was to compare the efficacy of CBT to a befriending (BF) control group in patients with schizophrenia who are refractory to clozapine. Twenty-one patients completed the 21-week trial. In comparison with the control group, the CBT group showed a significant improvement in the General Psychopathology and total score of the Positive and Negative Syndrome Scale, as well as an improvement of Quality of Life scale. The improvement in psychopathology persisted at 6-month follow-up assessment.
Background: Study-level meta-analyses have demonstrated the efficacy of cognitivebehavioural therapy for psychosis (CBTp). Limitations of conventional meta-analysis may be addressed using individual-participant-data (IPD). We aimed to determine a) whether results from IPD were consistent with study-level meta-analyses and b) whether demographic and clinical characteristics moderate treatment outcome.
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