The WILLOW Study With M5049 in SLE and CLE (SCLE and/or DLE) (WILLOW)

Open to people ages 18-75

• Active CLE (SCLE and/or DLE) with a CLE disease area and activity index (CLASI-A) >= 8
• Active SLE with presence of: CLASI-A >= 8 and BILAG 2004 1B, C, D (that is [i.e.], No BILAG 2004 A and No BILAG 2004 >= 2B) or BILAG 2004 >= 1A or 2B and 1 or 2 of the following: Hybrid Safety of Estrogens in Systemic Lupus Erythematosus National Assessment (SELENA)-SLEDAI >= 6 at Screening Visit and confirmed clinical hybrid SELENA-SLEDAI >= 4 (excluding laboratory parameters) at Day 1 Visit and/or CLASI-A >= 8
• Receiving a stable dose of at least one of the following standards of care therapies for lupus: Immunomodulator/immunosuppressant, oral corticosteroids, and/or topical corticosteroids
• Other protocol defined inclusion criteria could apply

• Autoimmune or rheumatic disease other than SLE or CLE
• Dermatological diseases other than cutaneous manifestations of SLE or CLE
• Uncontrolled medical conditions including significant cardiovascular events, active lupus nephritis, and active neurological disorder
• Ongoing or active clinically significant viral, bacterial, or fungal infection
• History of uncontrolled seizures or other neurological disorder
• History of or positive for human immunodeficiency virus, hepatitis C virus, or hepatitis B virus
• History of malignancy
• Other protocol defined exclusion criteria could apply