6. Subject has used any systemic therapy (e.g., systemic corticosteroids [intranasal and inhaled corticosteroids are allowed]), prednisone cyclosporine, immunosuppressants/immunomodulators, Janus Kinase (JAK) inhibitors, methotrexate, cytostatics) within 4 weeks prior to Visit 1 which, in the investigator's opinion, might impair evaluation of the AD being treated or which exposes the subject to an unacceptable risk by study participation