
Iomab-ACT: a phase I/II study of 131-I apamistamab targeted lymphodepletion followed by CD19-targeted CAR T-cell therapy for patients with relapsed or refractory B-ALL or DLBCLAward last edited on: 3/10/2025
Sponsored Program
STTRAwarding Agency
NIH : NCITotal Award Amount
$2,109,005Award Phase
2Solicitation Topic Code
102Principal Investigator
Dale LudwigCompany Information
Actinium Pharmaceuticals Inc
100 Park Avenue 23rd Floor
New York, NY 10017
New York, NY 10017
(646) 677-3870 |
investorrelations@actiniumpharma.com |
www.actiniumpharma.com |
Research Institution
Sloan-Kettering Institute
Phase I
Contract Number: 1R42CA254685-01Start Date: 9/9/2020 Completed: 8/31/2021
Phase I year
2020Phase I Amount
$378,389Public Health Relevance Statement:
NARRATIVE Certain resistant forms of leukemia and lymphoma may be treated with a combination of chemotherapy and tumor-targeted immunotherapy made by modifying a patients own immune cells (CD19-targeted CAR T-cell therapy), but serious side effects including a spectrum of neurological toxicities known as ICANS and a serious inflammatory reaction known as CRS occur in a significant percentage of patients. White blood cells called monocytes secrete the signal molecules (cytokines) that initiate the inflammatory cascade leading to ICANS and CRS; therefore, giving a treatment to eliminate monocytes before CAR T-cell therapy (instead of chemotherapy) may decrease the risk of serious side effects. Actinium herein proposes a clinical trial, to be conducted at Memorial Sloan Kettering Cancer Center, evaluating the use of a radioisotope-linked antibody targeting monocytes and other immune cells (CD45-targeted antibody drug conjugate, iodine 131 [131-I] apamistamab), in place of chemotherapy, to help make CAR T-cell treatment safer and more effective for patients with resistant blood cancers.
Project Terms:
Actinium; Acute Myelocytic Leukemia; Address; Adopted; Adoptive Cell Transfers; Adult; aged; Antibodies; Antibody-drug conjugates; Autologous; B-Cell Acute Lymphoblastic Leukemia; Behavior Therapy; Biodistribution; Blood; Bone Marrow; cancer cell; CD19 Antigens; CD19 gene; CD28 gene; Cells; Cerebral Edema; Cerebrospinal Fluid; chemotherapy; chimeric antigen receptor; Clinical; Clinical Research; Clinical Trials; cohort; Combination Drug Therapy; conditioning; Correlative Study; Cyclophosphamide; cytokine; cytokine release syndrome; design; Development; Dose; dosimetry; Dysphasia; Effector Cell; Encephalopathies; Enrollment; experience; fludarabine; Generations; Hematology; Hematopoietic; hematopoietic cell transplantation; Hematopoietic Neoplasms; Hematopoietic stem cells; high risk; I131 isotope; Immune; immunoregulation; Immunotherapy; improved; In complete remission; Incidence; Inflammatory; Infusion procedures; Interleukin-1; Interleukin-6; Investigation; Kinetics; Label; large cell Diffuse non-Hodgkin's lymphoma; Lead; leukemia/lymphoma; Leukocytes; Link; Lymphocyte; Lymphocyte Count; Lymphoma cell; Maximum Tolerated Dose; Memorial Sloan-Kettering Cancer Center; monocyte; multimodality; Myeloid-derived suppressor cells; Myelosuppression; Neurologic; Neurotoxicity Syndromes; Non-Hematologic Malignancy; novel strategies; outcome forecast; patient population; patient subsets; Patients; Peripheral; peripheral blood; Phase; Pre-Clinical Model; preclinical study; preservation; Prior Chemotherapy; PTPRC gene; Radioisotopes; Radiolabeled; Radiopharmaceuticals; Reaction; Recovery; Refractory; Regimen; Regulatory T-Lymphocyte; Relapse; Reporting; Resistance; response; Risk; Safety; safety and feasibility; Seizures; side effect; Signaling Molecule; Source; Structure; T cell therapy; T-Lymphocyte; targeted treatment; Testing; Therapeutic; Toxic effect; Transplantation Conditioning; tumor
Phase II
Contract Number: 4R42CA254685-02Start Date: 9/9/2020 Completed: 7/31/2025
Phase II year
2023Phase II Amount
$1,730,616Public Health Relevance Statement:
NARRATIVE Certain resistant forms of leukemia and lymphoma may be treated with a combination of chemotherapy and tumor-targeted immunotherapy made by modifying a patient's own immune cells (CD19-targeted CAR T-cell therapy), but serious side effects including a spectrum of neurological toxicities known as ICANS and a serious inflammatory reaction known as CRS occur in a significant percentage of patients. White blood cells called monocytes secrete the signal molecules (cytokines) that initiate the inflammatory cascade leading to ICANS and CRS; therefore, giving a treatment to eliminate monocytes before CAR T-cell therapy (instead of chemotherapy) may decrease the risk of serious side effects. Actinium herein proposes a clinical trial, to be conducted at Memorial Sloan Kettering Cancer Center, evaluating the use of a radioisotope-linked antibody targeting monocytes and other immune cells (CD45-targeted antibody drug conjugate, iodine 131 [131-I] apamistamab), in place of chemotherapy, to help make CAR T-cell treatment safer and more effective for patients with resistant blood cancers.
Project Terms: