FPI-2265

FPI-2265 is a radioligand therapy developed by Fusion Pharmaceuticals. Its target is PSMA (the sponsor names PSMA). The sponsor states: A PSMA-targeting ligand (PSMA-I&T) radiolabeled with the alpha-emitter actinium-225, delivering targeted alpha radiotherapy to PSMA-positive prostate cancer cells. ClinicalTrials.gov describes the intervention as: Small molecule capable of binding to the domain of PSMA radiolabeled with Ac225. It is the investigational product in 3 recruiting or active industry-led phase 2 and phase 3 interventional cancer trials, in prostate cancer. The largest, NCT05219500, plans to enrol 115 participants with primary completion expected 2025-05-30. Status reflects the highest phase registered on ClinicalTrials.gov at the 2026-09-11 check; no efficacy results are recorded here.