# Psychosocial interventions to reduce stigma among family caregivers of patients with severe mental illness and substance use disorder: a systematic review - URL: https://alisanburak.com/en/wcp-2026-posterler/ev1277 - Language: en - Last updated: not specified - Page title: Psychosocial interventions to reduce stigma among family caregivers of patients with severe mental illness and substance use disorder: a systematic review | WCP 2026 Summary > Psychosocial interventions had a positive effect on caregiver stigma in 12 of the 16 included studies, but the evidence is limited, and no studies specifically… This page was translated automatically from Turkish. [Read the original](https://alisanburak.com/wcp-2026-posterler/ev1277) This page is an AI-assisted Turkish summary of the study presented at the 26th World Congress of Psychiatry. The study belongs to the presenting authors; please refer to the original source when citing it. EV1277 E-PosterStigma and RecoverySystematic review # Psychosocial interventions to reduce stigma among family caregivers of patients with severe mental illness and substance use disorder: a systematic review PSYCHOSOCIAL INTERVENTIONS TO REDUCE STIGMA AMONG FAMILY CAREGIVERS OF PATIENTS WITH SEVERE MENTAL DISORDERS AND SUBSTANCE USE DISORDERS: A SYSTEMATIC REVIEW Presenter: Sidra Ali Country: Italy Institution: University of Campania Luigi Vanvitelli Psychosocial interventions had a positive effect on caregiver stigma in 12 of the 16 included studies, but the evidence is limited, and no studies specifically focused on caregivers of people with substance use disorder. The aim of the review is to systematically examine psychosocial interventions to reduce stigma among family caregivers of people with severe mental illness and substance use disorder (SUD). The rationale is that caregivers experience stigma by association, blame, shame, and social exclusion, which increase caregiver burden, psychological distress, and barriers to seeking help. The study is a PRISMA-guided systematic review conducted across seven databases—PUBMED, SCOPUS, Embase, APA PsycNet, Cochrane, EBSCO, and ProQuest—from inception to October 2025. Eligible studies were original intervention studies with full texts available in English that used validated measures of caregiver stigma. Of the 6437 records identified, 1316 duplicates were removed; 4929 of the remaining 5121 records were excluded, and 64 of the 80 reports assessed for eligibility were excluded, leaving 16 studies included in the review. Of these studies, 15/16 involved caregivers such as parents, spouses, children, and grandparents, while 1/16 involved siblings; 8/16 used randomized designs and 8/16 used nonrandomized designs. Intervention types comprised psychoeducation or family-focused supportive education (9/16), acceptance and commitment therapy–based interventions (2/16), peer-led support (2/16), a contact-based anti-stigma intervention (1/16), contact-enhanced psychoeducation (1/16), mental health first aid (1/16), and community-based rehabilitation with a stigma module (1/16). The disorders addressed were schizophrenia or psychosis (9/16), bipolar disorder (1/16), and mixed psychiatric disorders (6/16); no studies focused exclusively on caregivers of people with SUD (0/16). Stigma-related outcomes were assessed in 16/16 studies. The outcomes showing the greatest improvement were self-stigma, stigma by association, internalized stigma, and stigmatizing attitudes, while findings for perceived stigma, service-related stigma, and concealment or withdrawal were less consistent. In terms of overall effectiveness, 12/16 studies reported a positive effect, 1/16 reported a limited effect, and 3/16 found no significant effect on stigma. Significant effects were found for psychoeducation and family-focused support; acceptance and commitment therapy–based and contact-enhanced models were promising; peer-led education and mental health first aid yielded mixed findings; and stigma modules within community-based rehabilitation showed no significant effects. The studies were conducted in Iran (4), Australia (2), Türkiye (2), the United States (2), and China, Ethiopia, India, Japan, the United Kingdom, and Vietnam (one study each). The authors conclude that psychosocial interventions may reduce caregiver stigma, but the evidence remains limited, particularly for caregivers of people with SUD, and future studies should test mechanisms such as mental health literacy and psychological flexibility. [View the original poster](https://cslide.ctimeetingtech.com/wcp26/attendee/eposter/file/143) How to cite this study APA 7: Ali, S., et al. (2026, September 23-26). Psychosocial interventions to reduce stigma among family caregivers of patients with severe mental disorders and substance use disorders: a systematic review [E-poster]. 26th WPA World Congress of Psychiatry (WCP 2026), Stockholm, Sweden. https://cslide.ctimeetingtech.com/wcp26/attendee/eposter/file/143 Vancouver: Ali S, et al. Psychosocial interventions to reduce stigma among family caregivers of patients with severe mental disorders and substance use disorders: a systematic review [e-poster]. 26th WPA World Congress of Psychiatry (WCP 2026); 2026 Sep 23-26; Stockholm, Sweden. 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