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Actinium’s phase 3 trial dosimetry results support low dose iomab-B for targeted lymphodepletion prior to adoptive cell therapy

Actinium Pharmaceuticals is advancing the development of low dose Iodine-131 apamistamab, a CD45 targeting antibody radiation-conjugate (ARC), as an alternative to today’s standard practice of chemotherapy-based lymphodepletion regimens like fludarabine/cyclophosphamide (Flu/Cy), which have been implicated in CAR-T toxicities including cytokine release syndrome (CRS) and neurotoxicity.

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Actinium reaches milestone, enrols half of patients to test Iomab-B for Leukemia

Actinium Pharmaceuticals underlines half of patients treated in the pivotal Phase 3 SIERRA testing Iomab-B in Elderly Relapse Refractory Acute Myeloid Leukemia is the only randomized Phase 3 trial that offers BMT or bone marrow transplant as an option for older patients with active, relapsed or refractory AML or acute myeloid leukemia.

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Quicker pathway to a pivotal trial for larger patient population than planned for Actinium’s CD33

@ActiniumPharma moves to next stage of development for its CD33 ARC (Antibody Radiation Conjugate) Ac-225-Lintuzumab program are pivotal trial pathway for its Actimab-MDS program for Myelodysplastic Syndromes (MDS), and also in two combination trials with Venetoclax for AML.
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