Abstract
Introduction: Dupilumab is a fully human anti-IL-4Rα monoclonal antibody approved in the US for patients aged ≥6 years with moderate-to-severe AD inadequately controlled by topical therapies. This analysis evaluated the long-term use of concomitant therapy among adult patients treated with dupilumab from RELIEVE-AD, a prospective, longitudinal patient survey conducted in the US. Methods: Adults with moderate-to-severe AD who were prescribed dupilumab but had not yet initiated treatment were recruited to the RELIEVE-AD study from the dupilumab patient support program. Based on a 4-week recall, surveys assessed concomitant AD therapy use, including oral/ injectable steroids, immunosuppressants, and topical medications (steroids, calcineurin inhibitors, crisaborole), at baseline, throughout 1 year after treatment initiation, and at 30-36 months. Results: Of 698 patients completing the baseline survey, 425 (61.0%) responded at Month 30-36. A significant reduction in concomitant AD medication use from baseline was reported across all medication categories assessed: topical use significantly decreased from 81.2% (baseline) to 57.7% (Month 1) and 44.5% (Month 30-36) (both P < .001). Oral steroid use decreased from 30.1% (baseline) to 6.2% (Month 1) and 4.0% (Month 30-36) (both P < .001). Steroid injection treatment decreased from 8.7% (baseline) to 1.7% (Month 1) and 0.9% (Month 30-36) (both P < .001). The proportion of patients reporting no concomitant treatment use significantly increased from 12.8% (baseline) to 39.6% (Month 1) and 54.4% (Month 30-36) (both P < .001). Conclusions: Dupilumab treatment led to a rapid reduction in concomitant medication use that was sustained through 30–36-month follow-up among adults with moderate-to-severe AD.
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