I-131-Apamistamab - Actinium Pharmaceuticals
Alternative Names: 131-I-labeled anti-CD45 antibody; 131-I-labeled BC8 antibody; 131I-BC8 (anti-CD45) antibody - Actinium Pharmaceuticals; Anti-CD45 monoclonal antibody-BC8-I-131; Anti-CD45 monoclonal antibody-I-131; BC 8; BC8-I-131 construct; I-131-BC8; I131-Apamistamab; Iodine I 131 Apamistamab; Iodine-131-apamistamab; Iomab-ACT; Iomab-BLatest Information Update: 10 Sep 2025
At a glance
- Originator Fred Hutchinson Cancer Research Center
- Developer Actinium Pharmaceuticals; Fred Hutchinson Cancer Research Center; Memorial Sloan-Kettering Cancer Center
- Class Antineoplastics; Immunoconjugates; Iodine radioisotopes; Monoclonal antibodies; Radiopharmaceuticals
- Mechanism of Action Ionising radiation emitters
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Orphan Drug Status
Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.
- New Molecular Entity Yes
Highest Development Phases
- Phase III Acute myeloid leukaemia
- Phase II Myelodysplastic syndromes; Precursor cell lymphoblastic leukaemia-lymphoma
- Phase I/II Diffuse large B cell lymphoma
- No development reported Hodgkin's disease; Non-Hodgkin's lymphoma; Precursor B-cell lymphoblastic leukaemia-lymphoma
Most Recent Events
- 10 Sep 2025 Actinium Pharmaceuticals plans a phase II/III trial for Acute myeloid leukaemia (Second-line therapy or greater, Combination therapy) (IV), in January 2026 (NCT07157514)
- 25 Apr 2025 Phase-I/II clinical trials in Diffuse large B cell lymphoma (Second-line therapy or greater, Late-stage disease) in USA (IV) (NCT06768905)
- 19 Mar 2025 Actinium Pharmaceuticals and the University of Texas Southwestern plans a CAR-T clinical trial for Hematological malignancies in the second half of 2025