A Study to Assess the Efficacy and Safety of Afimkibart (RO7790121) in Participants With Moderate to Severe Atopic Dermatitis

Prior treatment

• IV, IM, IL, and oral corticosteroids (inhaled, ophthalmic drops, and nasal corticosteroids are allowed) within 4 weeks of the baseline visit and during the study
• Topical treatment for AD including, but not limited to topical corticosteroids, topical calcineurin Inhibitors, topical PDE-4 inhibitors, , prescription moisturizers or moisturizers containing additives such as ceramide, hyaluronic acid, urea or filaggrin within 7 days prior to the baseline visit and during the study
• Any active infection or other active skin diseases that required treatment with parenteral anti-infectives within 4 weeks or oral anti-infective treatment within 2 weeks prior to baseline
• Systemic therapies that are also used in the treatment of AD, including, but not limited to methotrexate, cyclosporine, azathioprine, mycophenolate mofetil within 4 weeks of the baseline visit and during the study

Other illness

• Evidence of other skin conditions that would interfere with the assessment of AD, including, but not limited to, for example cutaneous T-cell lymphoma, allergic contact dermatitis

Other

• Acquired or congenital immunodeficiency

• AD diagnosis confirmed by a dermatologist according to the Hanifin/Rajka criteria at least 1 year prior to screening
• Moderate to severe AD
• At least once daily use of an additive-free, bland emollient for at least 7 days prior to the baseline visit and during the study