• Farooq Naeem, Saeed Farooq, and David Kingdon.
• Department of Psychiatry, Queen's University, Kingston, ON, Canada.
• Cochrane Db Syst Rev. 2015 Oct 21 (10): CD010646.

BackgroundCognitive behavioural therapy for people with schizophrenia is a psychotherapeutic approach that establishes links between thoughts, emotions and behaviours and challenges dysfunctional thoughts. There is some evidence to suggest that cognitive behavioural therapy for people with psychosis (CBTp) might be an effective treatment for people with schizophrenia. There are however, limitations in its provision due to available resource and training issues. One way to tackle this issue might be to offer a brief version of CBTp.ObjectivesTo review the effects of brief CBTp (6 to 10 regular sessions given in less than 4 months and using a manual) for people with schizophrenia compared with standard CBTp (12 to 20 regular sessions given in 4 to 6 months and using a manual).Search MethodsWe searched the Cochrane Schizophrenia Group's Trials Register (August 21, 2013 and August 26, 2015) which is based on regular searches of CINAHL, BIOSIS, AMED, EMBASE, PubMed, MEDLINE, PsycINFO and registries of Clinical Trials. There are no language, date, document type, or publication status limitations for inclusion of records in the register. We inspected all references of the selected articles for further relevant trials. We also contacted experts in the field regarding brief CBTp studies.Selection CriteriaRandomised controlled trials involving adults with schizophrenia or related disorders, comparing brief cognitive behavioural therapy for people with psychosis versus standard CBTp.Data Collection And AnalysisTwo review authors independently screened and assessed studies for inclusion using pre-specified inclusion criteria.Main ResultsWe found only seven studies which used a brief version of CBTp, but no study compared brief CBTp with CBTp of standard duration. No studies could be included.Authors' ConclusionsCurrently there is no literature available to compare brief with standard CBTp for people with schizophrenia. We cannot, therefore, conclude whether brief CBTp is as effective, less effective or even more effective than standard courses of the same therapy. This lack of evidence for brief CBTp has serious implications for research and practice. Well planned, conducted and reported randomised trials are indicated.

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