Donor Stem Cell Transplant in Treating Patients With Myeloid Cancer or Other Disease

Leukemia Clinical Trial

Official title: A Multicenter, Prospective Trial to Evaluate the Role of NK Cell KIR Epitope Mismatch on Mortality and Disease Relapse in T-Cell Depleted Hematopoietic Stem Cell Transplantation From HLA-C Mismatched, Unrelated Donors for Myeloid Malignancies

Status Terminated

Clinical Trial Summary

RATIONALE: Giving total-body irradiation and chemotherapy, such as fludarabine and thiotepa, before a donor stem cell transplant helps stop the growth of cancer or abnormal cells. It also helps stop the patient's immune system from rejecting the donor's stem cells. When healthy stem cells from a donor are infused into the patient, they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Giving antithymocyte globulin and removing the T cells from the donor cells before transplant may stop this from happening.

PURPOSE: This phase II trial is studying how well a donor stem cell transplant works in treating patients with myeloid cancer or other disease.

Clinical Trial Description

OBJECTIVES:

Primary

• Determine the incidence of disease-free survival at 1 year in patients with acute or chronic myeloid leukemias undergoing T-cell-depleted hematopoietic stem cell transplantation from HLA-C mismatched, unrelated donors.

Secondary

• Determine the incidence of disease relapse at 1 year in patients treated with this regimen.

• Determine the incidence and severity of acute graft-vs-host disease (GVHD) at 100 days and chronic GVHD at 1 year in these patients.

• Determine the incidence of graft failure at day 100.

• Determine the transplant-related mortality of these patients at 1 year.

• Determine the overall survival of these patients at 1 year.

OUTLINE: This is a prospective, multicenter study. Patients are stratified according to killer-cell immunoglobulin-like receptors (KIR) epitope mismatch (yes [experimental] vs no [control]).

• Myeloablative preparative regimen: Patients undergo total body irradiation twice daily on days -10 and -9 and receive thiotepa intravenously (IV) over 4 hours on days -8 and -7, fludarabine phosphate IV over 30-60 minutes on days -7 to -3, and antithymocyte globulin IV over 4-6 hours on days -5 to -2.

• Allogeneic peripheral blood stem cell (PBSC) transplantation: Patients undergo filgrastim (G-CSF)-mobilized, T-cell-depleted, CD34+-selected allogeneic PBSC transplantation on day 0.

After completion of study treatment, patients are followed periodically for at least 1 year. ;

Related Conditions & MeSH terms

• Leukemia
• Myelodysplastic Syndromes
• Preleukemia
• Syndrome

• NCT number: NCT00392782
• Study type: Interventional
• Source: Masonic Cancer Center, University of Minnesota
• Status: Terminated
• Phase: Phase 2
• Start date: July 2005
• Completion date: May 2011