A Review of Switching Biologic Agents in the Treatment of Moderate-to-Severe Plaque Psoriasis

Abstract

Psoriasis is an immune-mediated polygenic inherited skin disease. Many biologic agents have been approved for the treatment of moderate-to-severe plaque psoriasis. The most commonly utilized biologics include TNF-α antagonists (etanercept, infliximab, and adalimumab), IL-12/23P40 antagonist (ustekinumab), IL-23P19 antagonist (guselkumab), IL-17A antagonist (secukinumab and ixekizumab), and IL-17RA antagonist (brodalumab). However, some patients may fail to respond well to their first biologic agent. Reasons for failure include primary failure (lack of initial efficacy), secondary failure (loss of efficacy over time) or the development of adverse effects. For patients desiring maximum skin clearance and better quality of life, switching to a second biologic agent might be a worthwhile option. This review discusses recent clinical studies on switching therapies in treating psoriasis, and found that switching biologic agents can significantly improve outcomes for patients. Some clinical guidelines are also discussed. This research provides some advice on establishing individualized treatment regimens based on clinical needs and pharmacologic characteristics.

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