Treo/Flu/TBI With Donor Stem Cell Transplant for Patients With Myelodysplastic Syndrome or Acute Myeloid Leukemia

Summary

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Description

PRIMARY OBJECTIVES: I. To determine the better of two treosulfan-based conditioning regimens in patients with myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML), by comparing 6-month progression-free survival. SECONDARY OBJECTIVES: I. Determine the effects of two conditioning regimens o...

PRIMARY OBJECTIVES: I. To determine the better of two treosulfan-based conditioning regimens in patients with myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML), by comparing 6-month progression-free survival. SECONDARY OBJECTIVES: I. Determine the effects of two conditioning regimens on changes in gene expression profiles, and evaluate the association of gene expression profiles and disease relapse. II. Determine the incidence of progression-free survival at 1 year and 2 years after hematopoietic cell transplantation (HCT). III. Evaluate overall survival (OS) at 6 months, at 1 year and at 2 years after HCT. IV. Determine the incidence of grades II-IV acute graft-versus-host disease (GVHD). V. Determine the incidence of chronic GVHD. VI. Determine donor chimerism around days +28 and +84. CONDITIONING REGIMEN: Arm A: Patients receive treosulfan intravenously (IV) over 2 hours on days -6 to -4 and fludarabine phosphate IV over 30 minutes on days -6 to -2. Arm B: Patients receive treosulfan and fludarabine phosphate as in Arm A and undergo low-dose total-body irradiation (TBI) on day 0. TRANSPLANT: Patients in both arms undergo allogeneic peripheral blood stem cell (PBSC) transplant or bone marrow transplant on day 0. GVHD PROPHYLAXIS: Patients with a related donor receive tacrolimus orally (PO) every 8 or 12 hours on days -3 to 56 with taper to day 180. Beginning 4-6 hours after PBSC infusion, patients also receive mycophenolate mofetil PO every 12 hours to day 28. Patients with an unrelated donor receive tacrolimus PO every 8 or 12 hours on days -3 to 100 with taper to day 180. Beginning 4-6 hours after PBSC infusion, patients also receive mycophenolate mofetil PO every 8 hours to day 40 with taper to day 96. NOTE: Patients with related donors eligible for FHCRC protocol 2545 may receive cyclosporine IV, instead of tacrolimus, beginning on day -3 to day 50 with a taper to day 180. After completion of study treatment, patients are followed up periodically.

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