Reid, Jordan; Cole, Charles; Malik, Nabeela; Bell, Vaughan; Bloomfield, Michael; (2024) The effectiveness and tolerability of trauma-focused psychotherapies for psychotic symptoms: A systematic review of trauma-focused psychotherapies. International Journal of Methods in Psychiatric Research , 33 (1) , Article e2005. 10.1002/mpr.2005.

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Abstract

INTRODUCTION: Psychological trauma is an established risk factor for psychosis. Trauma-focused psychotherapies (TFPT) have been suggested as a potential treatment for reducing psychotic symptoms in those who have experienced trauma. We therefore sought to investigate the effectiveness, tolerability, and acceptability of TFPT for psychotic symptoms. METHODS: We conducted a systematic review of studies of any form of TFPT that measured psychotic symptoms across a broad range of diagnoses. RESULTS: From 2584 papers initially identified, 17 studies (857 participants) met eligibility criteria. TFPT were found to be well tolerated, with very few adverse events. Acceptability was also high, with a mean dropout rate of 20%. CONCLUSIONS: Whilst the evidence of effectiveness for TFPT in reducing psychotic symptoms is weak, we found tentative evidence in favour of exposure-based interventions. Methodologically rigorous trials investigating the efficacy of TFPT for the treatment of psychotic symptoms are needed to assess this promising intervention.

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