Efficacy of Lebrikizumab on Pruritus: A Narrative Review

Atopic dermatitis (AD) is a chronic, relapsing, and heterogeneous skin disease characterized by eczematous morphology and intense pruritus, significantly impacting the quality of life of affected individuals. A primary cytokine implicated in AD is interleukin-13 (IL-13), which directly drives pruritus skin sensitization, contributing to pruritus. Lebrikizumab, a high-affinity IgG4 monoclonal antibody, targets IL-13 to block inflammatory and neuronal sensitization processes. This review aims to provide a comprehensive summary of lebrikizumab's efficacy in managing pruritus in patients with AD, focusing on data from the ADvocate 1&2, ADjoin, ADmirable, and ADhere studies. Clinical trials have demonstrated rapid and sustained improvements in pruritus outcomes, with significant relief observed within days of treatment initiation and maintained over long periods. Lebrikizumab has shown efficacy across diverse populations, including adolescents, the elderly, and skin of color. By effectively targeting IL-13, lebrikizumab offers a valuable treatment option for moderate-to-severe AD, providing significant and sustained pruritus relief, skin clearance, and quality of life improvements.