Aktis Oncology Reports First-in-Human Clinical Imaging…

BOSTON, Feb. 24, 2026 -- Aktis Oncology, Inc. (NASDAQ:AKTS), a clinical-stage oncology company focused on expanding the breakthrough potential of targeted radiopharmaceuticals to large patient populations, including those not addressed by existing platform technologies, today announced that the U.S. Food and Drug Administration (FDA) has granted Fast Track designation to AKY-1189 for the treatment of adult patients with locally advanced or metastatic urothelial cancer (mUC) who have progressed on or after prior systemic therapies. Generated using Aktis’ miniprotein radioconjugate platform, AKY-1189 is designed to deliver actinium-225 (²²⁵Ac), a highly potent alpha-emitting radioisotope, to Nectin-4 expressing tumors. Approximately 80 – 90% of urothelial cancer patients show positive expression of Nectin-4.