This is a 5-year, longitudinal, observational study of adult and pediatric patients (all ages) being treated for Immune-Mediated Inflammatory Skin Conditions. In addition to the study database, a biospecimen repository will be included in order to perform studies on biomarkers of response.

Patients being prescribed medical therapy for IMISC will be eligible for enrollment. Treatment algorithms will follow each site's local standard of care and no specific treatments, assessments, and/or laboratory tests will be dictated by enrollment in the main TARGET-DERM Program. Patients will be screened and enrolled at a regularly scheduled clinic visit. Up to three years of retrospective
medical records from patients who provide consent/assent and meet all inclusion and exclusion criteria will be obtained by the research site. Records will include but will not be limited to: hospitalizations, laboratory reports, clinic notes, telephone contact reports, medication lists, reasons for medication initiation and/or discontinuation, biopsy results, and imaging. Patients may
also be linked to external databases (such as patient support programs). Patients will also be asked to provide biological samples and complete patient reported outcome (PRO) surveys, although participation in these two portions is optional.

During the follow-up period, the research site will prospectively submit the research subjects' medical records approximately every 6 to 12 months, for up to 5 years. Patients/legal representatives ("parent proxy") will be asked to complete PRO surveys at regular intervals during this follow-up period.

This study will assess the features of children, younger than 12 years old, with moderate to severe eczema, also known as atopic dermatitis, when their condition is not adequately controlled with topical therapies (creams or lotions) or when those therapies are not medically advisable.

This is not a treatment study. You and your child will complete questionnaires describing how their condition effects them. Information related to your child's illness will be collected by reviewing their medical chart and by assessments performed by the study team. Participation in this study will involve at least 12 visits that will take place over a period of 10 years.

The information collected in this study may lead to an improved understanding of your child's illness and may provide healthcare providers with important information for treating atopic dermatitis in the future.