Reflectance Confocal Microscopy Evaluation of Skin Structure of Patients With Atopic Dermatitis Under Nemolizumab

Atopic dermatitis (AD) is a chronic inflammatory skin disease with pruritus and recurrence of eczematous eruptions. Evaluation of response to treatment are only clinical using Eczema Area Severity Index (EASI), SCOring of Atopic Dermatitis Index (SCORAD) scores, with a risk of intra-observer variations. Nemolizumab is a a humanised anti-IL-31 monoclonal antibody that has proven to be effective and well-tolerated for the treatment of patients with moderate-to-severe AD. Reflectance confocal microscopy (RCM) is a noninvasive procedure that allows to evaluate epidermis and papillary dermis at a cellular level. RCM allows skin structural and inflammatory parameters evaluation. The aim of this study is to evaluate by RCM skin modifications of AD patients treated with nemolizumab.