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Radiolabeled Monoclonal Antibody, Cyclophosphamide, and Total Body Irradiation Followed By Donor Stem Cell Transplantation in Treating Patients With Advanced Acute Myeloid Leukemia

2014-08-27 03:58:28 | BioPortfolio

Summary

RATIONALE: Radiolabeled monoclonal antibodies can locate cancer cells and either kill them or deliver radioactive cancer-killing substances to them without harming normal cells. Drugs used in chemotherapy work in different ways to stop cancer cells from dividing so they stop growing or die. Radiation therapy uses high-energy x-rays to damage cancer cells. Donor stem cell transplantation may be able to replace immune cells that were destroyed by radiolabeled monoclonal antibody therapy, chemotherapy and radiation therapy.

PURPOSE: Phase II trial to study the effectiveness of combining radiolabeled monoclonal antibody with cyclophosphamide and total-body irradiation followed by donor stem cell transplantation in treating patients who have advanced acute myeloid leukemia.

Description

OBJECTIVES:

- Determine the efficacy, in terms of overall survival and disease-free survival, and toxicity of cyclophosphamide and total body irradiation in patients with acute myeloid leukemia beyond first remission receiving HLA-matched related or unrelated hematopoietic stem cell transplantation.

- Determine the maximum tolerated dose (MTD) of iodine I 131 monoclonal antibody BC8 (I131 MOAB BC8) in these patients.

- Estimate the MTD of radiation delivered by I 131 MOAB BC8 to marrow of these patients and assess the effects on growth of marrow stroma in vitro.

OUTLINE: This is radiation dose-escalation study. Patients are stratified according to available donor (related vs unrelated).

Patients receive a biodistribution dose of iodine I 131 monoclonal antibody BC8 (I131 MOAB BC8) IV, then a therapeutic dose of I131 MOAB BC8 IV 6-14 days later (day -12). Patients undergo total body irradiation twice daily on days -6 to -4. Patients receive cyclophosphamide IV on days -3 and -2. Bone marrow cells (or peripheral blood stem cells) are infused on day 0.

Patients with CNS leukemic involvement receive intrathecal methotrexate twice before the transplantation then every other week for 8 weeks beginning on day 32. These patients also receive cranial irradiation beginning on day 32.

Cohorts of 4 patients each receive escalating doses of iodine I 131 attached to a standard dose of monoclonal antibody BC8 until the maximum tolerated dose (MTD) is determined. The MTD is defined as the radiation dose preceding that at which 2 of up to 6 patients experience graft failure.

Patients are followed at 6, 9, and 12 months, every 6 months for 1 year, and then annually thereafter.

PROJECTED ACCRUAL: A total of 40 patients (20 per stratum) will be accrued for this study within 4 years.

Study Design

Primary Purpose: Treatment

Conditions

Leukemia

Intervention

cyclophosphamide, methotrexate, allogeneic bone marrow transplantation, peripheral blood stem cell transplantation, iodine I 131 monoclonal antibody BC8, radiation therapy

Location

Fred Hutchinson Cancer Research Center
Seattle
Washington
United States
98109-1024

Status

Completed

Source

Fred Hutchinson Cancer Research Center

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:58:28-0400

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Medical and Biotech [MESH] Definitions

Transplantation of stem cells collected from the peripheral blood. It is a less invasive alternative to direct marrow harvesting of hematopoietic stem cells. Enrichment of stem cells in peripheral blood can be achieved by inducing mobilization of stem cells from the BONE MARROW.

Techniques for the removal of subpopulations of cells (usually residual tumor cells) from the bone marrow ex vivo before it is infused. The purging is achieved by a variety of agents including pharmacologic agents, biophysical agents (laser photoirradiation or radioisotopes) and immunologic agents. Bone marrow purging is used in both autologous and allogeneic BONE MARROW TRANSPLANTATION.

Transfer of HEMATOPOIETIC STEM CELLS from BONE MARROW or BLOOD between individuals within the same species (TRANSPLANTATION, HOMOLOGOUS) or transfer within the same individual (TRANSPLANTATION, AUTOLOGOUS). Hematopoietic stem cell transplantation has been used as an alternative to BONE MARROW TRANSPLANTATION in the treatment of a variety of neoplasms.

Agents that destroy bone marrow activity. They are used to prepare patients for BONE MARROW TRANSPLANTATION or STEM CELL TRANSPLANTATION.

The transference of BONE MARROW from one human or animal to another for a variety of purposes including HEMATOPOIETIC STEM CELL TRANSPLANTATION or MESENCHYMAL STEM CELL TRANSPLANTATION.

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