The Impact of Psoriasis Treatment on Depression and Suicide Risk: A Systematic Review

Psoriasis is a long-lasting inflammatory condition of the skin associated with various comorbidities, including depression and suicidal ideation. Management strategies for psoriasis include symptom alleviation, quality-of-life enhancement, and prevention of disease progression. Psoriasis treatments include topical therapies, phototherapy, oral systemic medications, and biologics.

In this review, we evaluate the impact of psoriasis treatments on depression and suicidal ideation in affected patients.

We systematically searched multiple databases, including PubMed, Scopus, and Web of Science, until September 30, 2024, to identify relevant articles. Studies that examined the effects of psoriasis therapies on depression and suicidal thoughts were included. Data on treatment modalities, psychological health outcomes, and psoriasis severity was obtained. Quality evaluation instruments, such as JBI, consolidated standards of reporting trials (CONSORTs), Center for Evidence-Based Management (CEMBa), and appraisal tool for cross-sectional studies (AXIS), were used to appraise study quality.

Ten studies met inclusion criteria, predominantly focusing on biologic therapies. Biologics like guselkumab, brodalumab, and bimekizumab have shown notable reductions in depression symptoms, probably through the alleviation of psoriasis severity and the enhancement of quality-of-life. Suicidal ideation occurred in some cases, especially with brodalumab; however, a definitive causal relationship was not established.

Treatments for psoriasis, especially biologics, have shown some advantages in reducing depression symptoms as well as relieving skin symptoms. However, cautious monitoring is required due to the possible hazards of suicidal thoughts with certain therapeutic options such as biologics. Addressing the complex issues of psoriasis requires comprehensive therapy that includes dermatologists and mental health specialists.