Takeda Receives U.S. FDA Approval of MIMRYLO™ (rusfertide), Marking a Potential Shift in the Treatment Paradigm for Polycythemia Vera

August 28, 2026

  • MIMRYLO, a First-in-Class Medicine with a Unique Mechanism of Action, is Approved for the Treatment of Erythrocytosis in Adults with Polycythemia Vera (PV)
  • MIMRYLO Has Been Shown to Maintain Hematocrit Control, the Primary Treatment Goal in PV, as Well as Reduce Phlebotomy Burden and Improve Fatigue
  • Approval Supported by Phase 3 VERIFY Results Showing 76.9% of Patients Achieved Clinical Response During Weeks 20-32

OSAKA, Japan and CAMBRIDGE, Massachusetts, August 28, 2026 – Takeda (TSE:4502/NYSE:TAK) announced U.S. Food and Drug Administration (FDA) approval of the New Drug Application (NDA)* for MIMRYLO™ (rusfertide) for the treatment of erythrocytosis in adults with polycythemia vera (PV), a blood cancer.

MIMRYLO is a first-in-class hepcidin mimetic designed to regulate iron distribution in the body and red blood cell overproduction to control hematocrit levels, which is the ratio of red blood cells to the total amount of blood in the body. Maintaining controlled hematocrit levels below 45% is the primary treatment goal in PV.1

“For patients living with PV, uncontrolled hematocrit can have serious consequences, including an elevated risk of life-threatening thrombotic events,” said Andrew T. Kuykendall, M.D., VERIFY lead investigator and Associate Member in the Department of Hematology at Moffitt Cancer Center. “Current treatments, such as phlebotomy, leave a significant gap for too many patients and can pose challenges to daily life and routines. The approval of MIMRYLO offers clinicians and patients a novel, first-in-class therapy that targets erythrocytosis, which drives excess red blood cell production in PV. The strength and consistency of the VERIFY data give me real confidence in MIMRYLO’s potential to advance how we treat PV in everyday practice and to maintain hematocrit control.”

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