An effective psychological intervention in reducing internalized stigma and improving recovery outcomes in people with severe mental illness

•The program is based on two key stigma-related cognitions and self-stigma predictors•The program innovatively improved self-stigma and recovery in Severe Mental Illness•Program outcomes support assumptions from theoretical models about self-stigma Internalized stigma reduces chances of clinical and subjective recovery in people with schizophrenia and other severe mental illness. To date, there is not enough evidence about an effective intervention to reduce internalized stigma that promotes clinical and subjective recovery in people with high internalized stigma and severe mental illness. The aim of this study was to evaluate the efficacy of a new psychological intervention named “Coping Internalized Stigma Program” (PAREI). An eight-session structured group-based integrative intervention was designed including psychoeducation, cognitive behavioural therapy, and mutual support. Fifty-four individuals with severe mental illness and a high level of internalized stigma were selected and randomly assigned to the PAREI intervention (n = 29) or to the control group (n = 25). The results of mixed ANOVAs revealed improvements in the PAREI group after treatment in the emotional dimension of internalized stigma, perceived legitimacy of discrimination, recovery expectations, and social functioning as compared to the control group. The results indicate that the PAREI represents a promising intervention tool to reduce internalized stigma, and to improve clinical and subjective recovery markers in people with severe mental illness and high internalized stigma.