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  • Title: Responder Threshold for Patient-Oriented Eczema Measure (POEM) and Children's Dermatology Life Quality Index (CDLQI) in Adolescents with Atopic Dermatitis.
    Author: Simpson EL, de Bruin-Weller M, Eckert L, Whalley D, Guillemin I, Reaney M, Chen Z, Nelson L, Qin S, Bansal A, Gadkari A.
    Journal: Dermatol Ther (Heidelb); 2019 Dec; 9(4):799-805. PubMed ID: 31641952.
    Abstract:
    INTRODUCTION: The Patient-Oriented Eczema Measure (POEM) assesses patient-reported frequency of atopic dermatitis (AD) symptoms, while the Children's Dermatology Life Quality Index (CDLQI) measures the impact of skin disease on health-related quality of life (HRQoL) in children. There is currently no threshold for clinically meaningful within-person change in POEM or CDLQI scores in adolescents. Here we empirically derive within-person thresholds of meaningful within-person change in POEM and CDLQI scores in adolescents with moderate-to-severe AD. METHODS: Data were used from a phase 3, randomized, double-blind, placebo-controlled trial of dupilumab in adolescents (aged ≥ 12 to < 18 years) with moderate-to-severe AD. Anchor-based methods were employed using the mean change in POEM and CDLQI scores from baseline to week 16 linked with a 1-point improvement in Patient Global Assessment of Disease (PGAD), a score of "a little better" on the Patient Global Assessment of Treatment effect (PGAT), a 50-74% improvement from baseline in the Eczema Area and Severity Index (EASI-50-74), and a 1-point improvement in Investigator's Global Assessment (IGA) score. RESULTS: A mean change of - 7.8 and - 5.6 in the POEM score was associated with PGAD and PGAT anchors, respectively. EASI-50-74 was associated with a mean change in POEM score of - 8.2, while the IGA anchor was associated with a mean change of - 7.9 in POEM score. The mean changes in CDLQI score associated with PGAD and PGAT anchors were - 6.4 and - 6.6, respectively, while CDLQI mean scores changed by - 8.3 and - 8.0 for the EASI and IGA anchors, respectively. CONCLUSION: In adolescents (aged ≥ 12 to < 18 years) with moderate-to-severe AD, a within-person change of 6-8 points in POEM and CDLQI scores, independently, can be considered a reasonable responder threshold for clinically meaningful change in each of the two scales, respectively. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03054428. FUNDING: Sanofi and Regeneron Pharmaceuticals, Inc.
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