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Current and emerging biologic and small molecule therapies for atopic dermatitis

Randall Li,S. Hadi,E. Guttman‐Yassky

Published 2019 in Expert Opinion on Biological Therapy

ABSTRACT

ABSTRACT Introduction: Atopic dermatitis (AD) is the most common inflammatory skin disease, yet until recently there were no safe systemic therapies approved for the long-term management of AD in adult patients. A deeper understanding of disease pathogenesis and identification of molecular and cellular changes has resulted in a rapidly evolving pipeline of therapeutics that holds promise for safer long-term control. Areas covered: In this review, we highlight the growing arsenal of biologic and small molecule antagonists that target pathways implicated in AD pathogenesis. Evidence that AD is driven by multiple immune axes extending beyond the Th2 polarization has resulted in therapies targeting additional pathways, including the Th22, Th17/IL-23, and JAK-STAT pathways. Pruritus, a hallmark of AD, has been linked to multiple mechanisms and various therapeutics have emerged in response to alternative hypotheses. Expert opinion: Despite the assumption that AD has a common disease mechanism, recent studies indicate that the disorder is characterized by several phenotypes and therapy may need to be tailored to the unique immune traits of specific phenotypes. Targeted therapy should complement and expand our molecular map of AD across the various phenotypic iterations and help push AD pharmacotherapy into a new era of personalized medicine.

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