Part 1 : To evaluate the safety and tolerability of a single intravenous (IV) or subcutaneous (SC) dose of KK4277 in healthy Japanese or non-Asian adult males. Part 2 : To evaluate the safety and tolerability of repeated IV or SC administration of KK4277 in patients with Systemic lupus erythematosus (SLE) or Cutaneous lupus erythematosus (CLE).
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Number of participants with adverse events (AEs)
Timeframe: Part 1 : from Day 1 through at most Day 113, Part 2: from Day 1 through at most Day 169