Actinium Pharmaceuticals, Inc. (NYSE:ATNM) ("Actinium" or the "Company"), a leader in the development of targeted radiotherapies for patients with unmet needs today announced that positive data
Actinium Pharmaceuticals, Inc. (NYSE:ATNM) ("Actinium" or the "Company"), a leader in the development of targeted radiotherapies for patients with unmet needs today announced that positive data from the fully enrolled pivotal Phase 3 SIERRA trial of Iomab-B was presented at the 63rd American Society of Hematology Annual Meeting and Exposition (ASH) that is being held December 11 – 14, 2021 in Atlanta, Georgia and virtually. Iomab-B is an antibody radiation conjugate (ARC) targeting CD45 with the Iodine-131 radioisotope payload that is intended to be a targeted conditioning regimen to enable patients to access a bone marrow transplant (BMT). The pivotal Phase 3 SIERRA trial is the only randomized Phase 3 trial for patients age 55 and above with active, relapsed or refractory acute myeloid leukemia (r/r AML) where BMT, the only potentially curative treatment option for this patient population, is feasible. SIERRA is a randomized trial that will compare outcomes of patients receiving Iomab-B and a BMT to those of patients on the control arm receiving physician's choice of salvage therapy including recently approved targeted agents venetoclax (Bcl-2), midostaurin and giltiritinib (FLT-3), and ivosidenib (IDH) who can potentially receive a BMT if they achieve a remission.