Methotrexat to Hand Eczema in the BIOSKIN Cohort

The Copenhagen Translational Skin Immunology Biobank and Research Programme (BIOSKIN) is a prospective translational biobank and research study designed to recruit 3,000 patients with atopic dermatitis, allergic contact dermatitis or psoriasis over at least five years. The open longitudinal study design allows participants to enter and leave the cohort at time points that reflect their natural disease and treatment course. At each study visit, investigators collect biological samples, conduct structured interviews, and obtain patient-reported outcomes on disease-specific and general health-related factors. In this study of patients initiating treatment with methotrexat because of hand eczema, patients are assessed with clinical assessments including dermatologist-verified diagnose, evaluation of disease severity, and detailed phenotyping. Examinations are performed before and after initiation of methotrexat as a tablet or as subcutaneous injections, and at least annually. Longitudinal modelling will enable detailed characterisation of the patiens and disease trajectories and treatment responses. The aim is to improve understanding of the effect and sideeffects of methotrexat in a cohort of hand eczema patients with moderate to severe disease.