Aktis Oncology Announces FDA Clearance of…

BOSTON, March 30, 2026 -- Aktis Oncology, Inc. (NASDAQ:AKTS) (the “Company”), a clinical-stage oncology company focused on expanding the breakthrough potential of targeted radiopharmaceuticals to large populations, including those not addressed by existing platform technologies, today announced the U.S. Food and Drug Administration (FDA) cleared the Investigational New Drug (IND) applications for the Company to proceed to a Phase 1b clinical trial with AKY-2519¹. AKY-2519 is a miniprotein radioconjugate targeting B7-H3, which is expressed in several solid tumor types including prostate and lung cancers, and is the second clinical stage miniprotein radioconjugate discovered using Aktis’ proprietary platform. The Company’s lead miniprotein radioconjugate, AKY-1189, targeting Nectin-4, is currently enrolling patients in a Phase 1b clinical study. Aktis’ miniprotein radioconjugates are designed to selectively deliver actinium-225 (²²⁵Ac), a highly potent alpha-emitting radioisotope, to target-expressing tumors.