A Study Evaluating BFB759 in Moderate to Severe Atopic Dermatitis

Inclusion Criteria: * Are adults (18-75) with a diagnosis of atopic dermatitis for at least one year. * Have moderate to severe disease not adequately controlled by topical treatments. * Are willing to follow study instructions, attend regular visits, and avoid certain other medications during the study. Exclusion Criteria: * Have certain infections or other immune conditions. * Recently used medications that could interfere with the study. * Are pregnant or breastfeeding.