Biologics targeting IL-23 in moderate-to-severe psoriasis: lessons learned from real-world use

INTRODUCTION: Psoriasis is a chronic, systemic inflammatory disease with significant physical and psychosocial burden. Advances in understanding the pathogenesis of psoriasis, particularly the role of interleukin (IL)23/Th17 axis, have led to the development of selective drugs targeting these cytokines. Among these, IL23 inhibitors (guselkumab, risankizumab, and tildrakizumab), represent the most recent class of biologic drugs approved for the management of moderate-to-severe plaque psoriasis. Since their approval, real-life data on the use of anti-IL23 have confirmed their high efficacy, durability, and favorable safety profile. AREAS COVERED: This narrative review summarizes real-world data on the effectiveness, also in difficult-to-treat areas, safety, and drug survival of IL23 inhibitors in psoriasis. EXPERT OPINION: Real-world evidence consistently confirms the strong efficacy, favorable safety profile, and long-term treatment durability of IL23 inhibitors across various patient subgroups, including those with comorbidities, prior biologic failures, and the involvement of difficult-to-treat areas. IL23 inhibitors have become key components of the therapeutic arsenal in psoriasis, and their performance in real-world settings continues to support their widespread adoption in clinical practice.