Abstract
The estimated prevalence of atopic dermatitis (AD) among adolescents (12-17years of age) is about 14.8%. AD compromises sleep quality and may be associated with poor scholastic performance, mood disruptions, low self-esteem, and difficulty in building social relationships. Upadacitinib was recently approved by the European Medicines Agency for the treatment of moderate-to-severe AD in patients aged ≥12years who are candidates for systemic treatment. The aim of this real-world study was to determine the effectiveness in disease control and safety of upadacitinib in adolescents aged 12-17yearswithmoderate-to-severe AD. This is a retrospective study in adolescents with moderate-to-severe AD treated with upadacitinib 15mg between July 2022 and February 2024 at six Italian dermatological referral centres. The primary endpoint was to analyse the evolution of the response in terms of absolute Eczema Area and Severity Index (EASI) value, as well as the percentage of patients achieving 75% and 90% improvement in EASI (EASI75 and EASI90) from baseline to weeks (W) 4, 16, 24, and 52. Secondary endpoints included the assessment of treatment efficacy in terms of Numerical Rating Scale (NRS) for pruritus (P-NRS) and sleep (S-NRS), Children's Dermatology Life Quality Index (c-DLQI), and safety. Thirty-six patients [males: 18 (50%)] were evaluated. A statistically significant improvement of EASI was observed at each timepoint, as stated by a mean percentage reduction from baseline of 72.2% at W4, 82.7% at W16, of 86.4% at W24 (n=34) and of 92.7% at W52 (n=18) (p<0.0001). At W4, 21/36 (58.3%) achieved EASI75 and 12/36 (33.3%) EASI90. At W16, 29/36 (80.5%) achieved EASI75 and 19/36 (52.8%) EASI90. At W24, 32/34 (94.1%) reached EASI75 and 24/34 (70.6%) EASI90. Finally, at W52 all the assessed patients (n=18) maintained EASI75 and 14/18 (77.7%) reached EASI90. Likewise, a statistically significant reduction of c-DLQI, P-NRS and S-NRS was observed at each timepoint. Our real-world experience seems to confirm the efficacy and safety of upadacitinib for the long-term treatment of moderate-to-severe AD in adolescents.
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