SymbolATNM
NameACTINIUM PHARMACEUTICALS, INC.
SectorHEALTH CARE
RegionNorth America
IndustryBiotechnology: Pharmaceutical Preparations
Address100 PARK AVENUE,23RD FLOOR, NEW YORK, New York, 10017, United States
Telephone(917) 415-1750
Fax
Email
Websitehttps://www.actiniumpharma.com
IncorporationUNDEFINED
Incorporated On
Employees
Fiscal Year
Public Since
ExchangesNASDAQ
Auditor
Audit StatusNOT PROVIDED
Reporting Status
CIK0001388320
Description

Actinium develops Antibody Radiation Conjugates (ARCs) and other targeted radiotherapies intended to meaningfully improve outcomes for people who have failed existing oncology therapies. Iomab-B is an induction and conditioning agent prior to bone marrow transplant in patients with relapsed and refractory acute myeloid leukemia (r/r AML), which Actinium plans to advance with a potential strategic partner in the U.S. following completion of FDA interactions. The company continues to advance its development for product candidate Actimab-A, a therapeutic agent that has demonstrated potential activity in r/r AML patients. In addition, Actinium is engaged with the National Cancer Institute (NCI) under the Cooperative Research and Development Agreement (CRADA) for development of Actimab-A in AML and other myeloid malignancies.

Additional info from NASDAQ:
Actinium develops Antibody Radiation Conjugates (ARCs) and other targeted radiotherapies intended to meaningfully improve outcomes for people who have failed existing oncology therapies. Iomab-B is an induction and conditioning agent prior to bone marrow transplant in patients with relapsed and refractory acute myeloid leukemia (r/r AML), which Actinium plans to advance with a potential strategic partner in the U.S. following completion of FDA interactions. The company continues to advance its development for product candidate Actimab-A, a therapeutic agent that has demonstrated potential activity in r/r AML patients. In addition, Actinium is engaged with the National Cancer Institute (NCI) under the Cooperative Research and Development Agreement (CRADA) for development of Actimab-A in AML and other myeloid malignancies.

2026-06-03 12:00

Actinium Presents New ATNM-400 Data in KRAS and EGFR Mutant Models at SNMMI 2026 Supporting a Mutation-Agnostic Opportunity In Non-Small Cell Lung Cancer

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2026-06-03 11:25

Actinium Pharmaceuticals Oral Presentation at SNMMI 2026 Highlights ATNM-400 Overcoming Resistance to All Three Approved Androgen Receptor Inhibitors and Offers Flexible, Well-Tolerated Dosing in Prostate Cancer Models

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2026-06-01 12:00

Actinium Appoints Accomplished Oncology Expert Steffen Heeger MD, MSc as Chief Medical Officer to Drive Rejuvenated Pipeline Development

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2026-06-01 11:00

Actinium Pharmaceuticals Presents New Radiochemistry Data at SNMMI 2026 Demonstrating That CAR Optimization Improves Tumor Targeting and Pharmacokinetics of Actinium-225 Radioconjugates

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2026-05-29 21:31

Actinium Pharmaceuticals Receives Two Patent Allowances Spanning Its Actimab-A and Iomab-ACT Programs

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2026-05-29 21:30

Actinium Pharmaceuticals to Present ATNM-400 Program Update at SNMMI 2026 Conference on May 31-June 2 and Provides NYSE American Listing Standards Notice

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2026-05-29 21:10

(70% Positive) ACTINIUM PHARMACEUTICALS, INC. (ATNM) Announces Clinical Development Update

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2026-04-22 11:00

Actinium Highlights Transcriptional Reprogramming as a Key Mechanism Underpinning Mutation-Agnostic Activity of Actimab-A in AML at the 2026 American Association of Cancer Research Annual Meeting

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2026-04-22 11:00

Actinium Pharmaceuticals, Inc. Announces Compelling Pan-Tumor Data for ATNM-400 Demonstrating Broad Efficacy Across Prostate, Lung, and Breast Cancer Models at the 2026 American Association of Cancer Research Annual Meeting

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2026-04-06 11:30

Actinium Pharmaceuticals Announces New Pan-Tumor Preclinical Data for ATNM-400 in Solid Tumors and Differentiated Mechanism for Actimab-A in AML to be Presented at 2026 AACR Annual Meeting

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Trial ID Title Phase Indication Status Start Date Completion Date Source
NCT07157514 Radioimmunotherapy Conditioning With 131I- Apamistamab for Allogeneic Transplan… Phase2 Acute Leukemia Not_Yet_Recruiting 2026-01-01 2034-02-01 ClinicalTrials.gov
NCT07015684 131I-apamistamab-based Conditioning for Hematopoietic Stem Cell Transplant (HSC… Phase1 Sickling Disorder Due to Hemoglobin S Recruiting 2025-04-28 2032-03-12 ClinicalTrials.gov
NCT06768905 IOMAB-CAR-T Followed by CAR-T Cell Therapy in R/R DLBCL Phase1 Non Hodgkin Lymphoma Recruiting 2025-04-25 2030-05-01 ClinicalTrials.gov
NCT03932318 Venetoclax, Azacitidine, and Lintuzumab-Ac225 in AML Patients Phase1 Acute Myeloid Leukemia Withdrawn 2023-03-01 2024-09-01 ClinicalTrials.gov
NCT03867682 Venetoclax and Lintuzumab-Ac225 in AML Patients Phase1 Acute Myeloid Leukemia Unknown 2020-01-15 2024-06-01 ClinicalTrials.gov
NCT02998047 A Phase I Study of Lintuzumab-Ac225 in Patients With Refractory Multiple Myeloma Phase1 Refractory Multiple Myeloma Terminated 2016-12-01 2020-05-01 ClinicalTrials.gov
NCT02665065 Study of Iomab-B vs. Conventional Care in Older Subjects With Active, Relapsed … Phase3 Acute Myeloid Leukemia Active_Not_Recruiting 2016-06-01 2026-12-01 ClinicalTrials.gov
NCT02575963 Lintuzumab-Ac225 in Older Acute Myeloid Leukemia (AML) Patients Phase1 AML Completed 2012-10-01 2020-05-01 ClinicalTrials.gov
NCT00672165 Targeted Atomic Nano-Generators (Actinium-225-Labeled Humanized Anti-CD33 Monoc… Phase1 Leukemia Completed 2005-07-01 2015-02-01 ClinicalTrials.gov
Total clinical trials: 9
Product Name Type Development Stage Therapeutic Area Study Status Trial ID
Planar gamma imaging Other Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Exchange Transfusion Other Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Total Body Irradiation Other Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Campath Other Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Sirolimus Other Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
131I-apamistmab Other Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
CAR-T cell Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Iomab-B Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
CAR-T cell Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Iomab-B Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
CAR-T cell Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Iomab-B Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
CAR-T cell Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Iomab-B Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
CAR-T cell Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Iomab-B Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Lintuzumab AC 225 Other Phase PHASE1 Refractory Multiple Myeloma TERMINATED NCT02998047
Azacitidine Other Phase PHASE1 Acute Myeloid Leukemia WITHDRAWN NCT03932318
Venetoclax Other Phase PHASE1 Acute Myeloid Leukemia WITHDRAWN NCT03932318
Lintuzumab-Ac225 Other Phase PHASE1 Acute Myeloid Leukemia WITHDRAWN NCT03932318
HCT Other Phase PHASE3 Acute Myeloid Leukemia ACTIVE_NOT_RECRUITING NCT02665065
Conventional Care Other Phase PHASE3 Acute Myeloid Leukemia ACTIVE_NOT_RECRUITING NCT02665065
Iomab-B Other Phase PHASE3 Acute Myeloid Leukemia ACTIVE_NOT_RECRUITING NCT02665065
Spironolactone Other Phase PHASE1 AML COMPLETED NCT02575963
Furosemide (Phase 1 only) Other Phase PHASE1 AML COMPLETED NCT02575963
Lintuzumab-Ac225 Other Phase PHASE1 AML COMPLETED NCT02575963
Cytarabine (Phase 1 only) Other Phase PHASE1 AML COMPLETED NCT02575963
Spironolactone Other Phase PHASE1 Acute Myeloid Leukemia UNKNOWN NCT03867682
Venetoclax Other Phase PHASE1 Acute Myeloid Leukemia UNKNOWN NCT03867682
Lintuzumab-Ac225 Other Phase PHASE1 Acute Myeloid Leukemia UNKNOWN NCT03867682
Planar gamma imaging Other Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Exchange Transfusion Other Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Total Body Irradiation Other Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Campath Other Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Sirolimus Other Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
131I-apamistmab Other Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Allogeneic Hematopoietic Stem Cell Transplant (HSCT) Other Phase PHASE2 Acute Leukemia NOT_YET_RECRUITING NCT07157514
Total Body Irradiation (TBI) Other Phase PHASE2 Acute Leukemia NOT_YET_RECRUITING NCT07157514
Cyclophosphamide Other Phase PHASE2 Acute Leukemia NOT_YET_RECRUITING NCT07157514
Fludarabine Other Phase PHASE2 Acute Leukemia NOT_YET_RECRUITING NCT07157514
131I-apamistamab Other Phase PHASE2 Acute Leukemia NOT_YET_RECRUITING NCT07157514
CAR-T cell Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Iomab-B Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
CAR-T cell Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Iomab-B Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
CAR-T cell Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Iomab-B Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
CAR-T cell Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Iomab-B Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
CAR-T cell Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Iomab-B Other Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Allogeneic Hematopoietic Stem Cell Transplant (HSCT) BIOLOGICAL Phase PHASE2 Acute Leukemia NOT_YET_RECRUITING NCT07157514
Total Body Irradiation (TBI) RADIATION Phase PHASE2 Acute Leukemia NOT_YET_RECRUITING NCT07157514
Cyclophosphamide DRUG Phase PHASE2 Acute Leukemia NOT_YET_RECRUITING NCT07157514
Fludarabine DRUG Phase PHASE2 Acute Leukemia NOT_YET_RECRUITING NCT07157514
131I-apamistamab DRUG Phase PHASE2 Acute Leukemia NOT_YET_RECRUITING NCT07157514
Planar gamma imaging RADIATION Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Exchange Transfusion PROCEDURE Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Total Body Irradiation DRUG Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Campath DRUG Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
Sirolimus DRUG Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
131I-apamistmab DRUG Phase PHASE1 Sickling Disorder Due to Hemoglobin S RECRUITING NCT07015684
CAR-T cell DRUG Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Azacitidine DRUG Phase PHASE1 Acute Myeloid Leukemia WITHDRAWN NCT03932318
Venetoclax DRUG Phase PHASE1 Acute Myeloid Leukemia WITHDRAWN NCT03932318
Lintuzumab AC 225 DRUG Phase PHASE1 Refractory Multiple Myeloma TERMINATED NCT02998047
HCT PROCEDURE Phase PHASE3 Acute Myeloid Leukemia ACTIVE_NOT_RECRUITING NCT02665065
Conventional Care DRUG Phase PHASE3 Acute Myeloid Leukemia ACTIVE_NOT_RECRUITING NCT02665065
Iomab-B DRUG Phase PHASE1 Non Hodgkin Lymphoma RECRUITING NCT06768905
Spironolactone DRUG Phase PHASE1 Acute Myeloid Leukemia UNKNOWN NCT03867682
Furosemide (Phase 1 only) DRUG Phase PHASE1 AML COMPLETED NCT02575963
Lintuzumab-Ac225 BIOLOGICAL Phase PHASE1 Acute Myeloid Leukemia WITHDRAWN NCT03932318
Cytarabine (Phase 1 only) DRUG Phase PHASE1 AML COMPLETED NCT02575963
ACTINIUM-225-LABELED HUMANIZED ANTI-CD33 MONOCLONAL ANTIBODY HuM195 BIOLOGICAL Phase PHASE1 Leukemia COMPLETED NCT00672165
Total products: 74