CCR4 and adult T-cell leukemia/lymphoma: In 28 Japanese patients with CCR4+ R/R ATLL treated with mogamulizumab at 1.0 mg/kg intravenously once weekly for 8 weeks demonstrated ORR of 50% with 30% CR, and median PFS and OS of 5.2 and 13.7 months, respectively [26].