Actinium Pharmaceuticals, Inc. and Immedica Announce Commercialization Agreement for Iomab-B (131I apamistamab) in Europe, the Middle East and North Africa

Actinium Pharmaceuticals, Inc., a leader in the development of targeted radiotherapies for patients with unmet needs, and Immedica Pharma AB ("Immedica") announced entering a license and supply agreement for Iomab-B, an Antibody Radiation Conjugate comprised of apamistamab, a CD45 targeting antibody, and the radioisotope iodine-131 that is being developed for targeted conditioning to facilitate bone marrow transplant (BMT) and other cell and gene therapies.

A pivotal Phase 3 trial, Study of Iomab-B versus Conventional Care in Elderly, Relapsed or Refractory Acute Myeloid Leukemia (SIERRA), of Iomab-B completed patient enrollment in the third quarter of 2021 with topline data expected in the third quarter of 2022. BMT is the only potentially curative treatment option for patients with active, relapsed or refractory acute myeloid leukemia (AML).

Under the terms of the agreement, Actinium will receive an upfront payment of $35 million and will be eligible to receive an additional $417 million in regulatory and commercial milestones as well as royalties in the mid-twenty percent range on net sales. Immedica receives commercialization rights in Europe and MENA countries. Actinium retains all rights related to Iomab-B in the United States and the rest of the world, and will be responsible for certain clinical and regulatory activities and the manufacturing of Iomab-B.