Dupilumab is a new treatment option for patients with moderate-to-severe atopic dermatitis. It blocks IL-4/IL13-signaling and thereby inhibits receptor signaling downstream the JAK-STAT-pathway. Three of the main disease mechanisms of atopic dermatitis are affected by blocking this pathway; the decrease of skin barrier function, the class switch to IgE and the TH2-differentiation. Areas Covered: Dupilumab showed promising results in clinical trials of phase I-III. Clinical outcome parameters such as SCORAD, EASI, IGA and BSA improved with dupilumab. A positive effect on patient-reported outcomes like DLQI or pruritus-rating-scales was also demonstrated. The safety profile of dupilumab is superior to conventional immunosuppressive drugs, such as cyclosporine or methotrexate. Injection-site reactions and conjunctivitis were the most relevant side-effects. Skin infections were less frequently observed compared to placebo. Data on the use of dupilumab during pregnancy or in children are not published to date. Expert Commentary: Dupilumab was approved by the FDA in April 2017 for the treatment of adult patients with moderate-to-severe atopic dermatitis whose disease is not adequately controlled with topical prescription therapies or when those therapies are not advisable.
Keywords: Dupilumab; IL-13; IL-4; atopic dermatitis treatment; biologics; monoclonal antibody.