Approved by the F-CRIN in 2022, coordinated by Pr Sébastien BARBAROT (Dermatology Clinic, Nantes University Hospital), FRADEN (FRench Atopic DErmatitis Network) is a research network on atopic dermatitis, a complex, chronic and recurrent skin disease, for which therapeutic options are still limited in adults and children despite a real impact on patients' quality of life. The FRADEN network is a new step, on a national scale, in the mutualisation of expertise in France initiated by the Groupe d'Étude sur l'Eczéma Atopique (GREAT), which has already conducted several academic trials in France. FRADEN aims to conduct translational projects, proof-of-concept trials and improve European collaborations. The network currently has 26 French centres and conducts research to better identify patient profiles, identify their biomarkers and their response and tolerance profile to treatments in order to better personalise patient care.