The FDA has granted clearance to an investigational new drug (IND) application for 225Ac-J591 (CONV01-α), a prostate-specific membrane antigen-targeted monoclonal antibody under investigation for the treatment of patients with advanced prostate cancer, announced Convergent Therapeutics, the developer of the therapy, in a news release.
225Ac-J591 demonstrated safety and preliminary efficacy across all dose levels in predominantly 177Lu-naïve patients with metastatic castration-resistant prostate cancer (mCRPC).
Specifically, among the patients who were evaluable for a prostate-specific antigen (PSA) change (n = 22), 21 patients (95%) in the study experienced a PSA decline. Of these, 14 (67%) patients experienced a decline of at least 50%, and 6 (27%) experienced a decline of at least 90%.