The mini-protein radiopharmaceutical AKY-1189, designed to deliver the alpha-emitting isotope Actinium-225 (225Ac) to tumors expressing the Nectin-4 transmembrane protein, has been found to achieve favorable dosing to tumors, while minimizing exposure to non-target tissues, including the kidney.

Data on the biodistribution and tumor uptake of the drug were reported at the 2024 EORTC-NCI-AACR 2024 Molecular Targets and Cancer Therapeutics Symposium held in Barcelona. Researcher Machaba Mike Sathekge, PhD, Professor and Head of the Department of Nuclear Medicine at the University of Pretoria and Steve Biko Academic Hospital in South Africa. He is also CEO of Nuclear Medicine Research Infrastructure and Chairman of the South African Medical Research Council.