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  • Title: Dupilumab Provides Acceptable Safety and Sustained Efficacy for up to 4 Years in an Open-Label Study of Adults with Moderate-to-Severe Atopic Dermatitis.
    Author: Beck LA, Deleuran M, Bissonnette R, de Bruin-Weller M, Galus R, Nakahara T, Seo SJ, Khokhar FA, Vakil J, Xiao J, Marco AR, Levit NA, O'Malley JT, Shabbir A.
    Journal: Am J Clin Dermatol; 2022 May; 23(3):393-408. PubMed ID: 35503163.
    Abstract:
    BACKGROUND: Moderate-to-severe atopic dermatitis (AD) often requires long-term management with systemic therapies. OBJECTIVE: Our objective was to report the safety and efficacy of dupilumab treatment up to 4 years in adults with moderate-to-severe AD and efficacy in a subgroup of patients who transitioned from dupilumab once-weekly (qw) to administration every other week (q2w). METHODS: This interim analysis of the open-label extension study (NCT01949311) evaluated dupilumab 300 mg qw or q2w in adults previously enrolled in dupilumab trials for moderate-to-severe AD. Patients switched from qw to q2w following protocol amendment. The primary outcome was safety; efficacy was also assessed. RESULTS: Of 2677 patients enrolled and treated, 352 (13.1%) completed week 204 (end of efficacy assessments) and 202 (7.5%) completed safety follow-up through week 244. Self-reported compliance was 98.1%. Dupilumab's safety profile was consistent with previous reports. Common treatment-emergent adverse events (≥5%) included nasopharyngitis, AD, upper respiratory tract infection, oral herpes, conjunctivitis, injection-site reaction, and headache. At week 204, mean ± standard deviation (SD) Eczema Area and Severity Index was 2.46 ± 3.98, and mean percent change from parent study baseline (PSBL) was -91.07%; mean ± SD Pruritus Numerical Rating Scale score was 2.10 ± 1.83, and mean percent change from PSBL was -68.74%. Efficacy was maintained in patients (n = 226) who transitioned from qw to q2w dosing. Limitations of this study included its open-label design, the lack of control arm, and smaller subsets of patients at later timepoints and receiving the approved q2w regimen. CONCLUSION: These results support dupilumab as continuous long-term treatment for adults with moderate-to-severe AD; efficacy was sustained following transition from qw to q2w dosing. TRIAL REGISTRATION CLINICALTRIALS.GOV: NCT01949311. Atopic dermatitis is a chronic skin disease associated with inflamed skin and intense itching. People with moderate-to-severe atopic dermatitis often need long-term treatment, but many available treatments do not have demonstrated long-term safety data. In multiple clinical trials, dupilumab treatment resulted in significant improvements in signs and symptoms of atopic dermatitis. This study examined the safety and efficacy of up to 4 years of dupilumab treatment in adults with moderate-to-severe atopic dermatitis, and whether dupilumab continued to be effective in patients who switched from receiving treatment each week to treatment every other week. To address these questions, we collected data from adults who received 300 milligrams of dupilumab every week or every other week. In this study, safety findings were consistent with the known dupilumab safety profile. Patients' signs and symptoms were evaluated before and during treatment with evaluation tools including the Eczema Area and Severity Index (EASI), which indicates the extent and severity of disease, and the Pruritus Numerical Rating Scale (NRS), which indicates the intensity of itching. Reductions of 91% in EASI scores and 69% in Pruritus NRS scores showed that the improvement in signs and symptoms persisted for 204 weeks (almost 4 years) of treatment, and these effects were sustained following the switch from weekly treatment to the approved every other week treatment with dupilumab. The safety and efficacy data presented here support the use of dupilumab as a continuous, long-term treatment for up to 4 years for adults with moderate-to-severe atopic dermatitis. Video abstract: What is the long-term safety and efficacy profile of dupilumab in adults with moderate-to-severeatopic dermatitis for up to 4 years? (MP4 102515 KB).
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