Key clinical point: Analysis of serum biomarker profiles in pediatric patients with atopic dermatitis (AD) indicates the existence of unique endotypes that could predict patients at risk of persistent disease and guide personalized, endotype-driven therapeutic approaches.
Major finding: Distinct biomarker profiles identified Th2/retinol dominant (mean Eczema Area Severity Index [EASI] score: 9.2), skin-homing dominant (mean EASI score: 27.8), Th1/Th2/Th17/IL-1 dominant (mean EASI score: 10.5), and Th1/IL-1/eosinophil inferior (mean EASI score: 12.3) as the 4 distinct pediatric clusters . The clusters were influenced by disease severity and not age, with the skin-homing dominant cluster having more severe AD than other clusters ( P less than .001).
Study details: Findings are from an analysis of biomarker profiles of 240 pediatric patients with AD aged 0-17 years compared with previously found profiles in adult patients with AD.
Disclosures: This study was funded by Regeneron and Sanofi-Genzyme pharmaceuticals, Inc. Dr. M de Graaf, Dr. MS de Bruin-Weller, Dr. DS Bakker, Dr. E Knol, and Dr. JL Thijs declared being speaker, principal investigator, consultant, and/or advisory board member for various sources including Sanofi-Genzyme and Regeneron.
Source: Bakker DS et al. J Allergy Clin Immun. 2021 Jul 6. doi: 10.1016/j.jaci.2021.06.029 .