Last updated on November 2019

Reduced-Intensity Conditioning Before Donor Stem Cell Transplant in Treating Patients With High-Risk Hematologic Malignancies

Brief description of study

This clinical trial studies reduced-intensity conditioning before donor stem cell transplant in treating patients with high-risk hematologic malignancies. Giving low-doses of chemotherapy and total-body irradiation before a donor stem cell transplant helps stop the growth of cancer cells. It may also stop the patient's immune system from rejecting the donor's stem cells. The donated stem cells may replace the patient's immune cells and help destroy any remaining cancer cells (graft-versus-tumor effect). Giving an infusion of the donor's T cells (donor lymphocyte infusion) after the transplant may help increase this effect.

Detailed Study Description


  1. To compare the rate of disease-free survival (DFS) at 1 year post hematopoietic stem cell transplant (HSCT) in patients undergoing HSCT treated on this successor Thomas Jefferson University (TJU) 2 Step reduced intensity conditioning (RIC) haploidentical regimen and compare it with that of the initial 2 Step RIC regimen.


  1. To assess the 100 day regimen-related mortality (RRM) in patients undergoing HSCT on this treatment protocol.
  2. To determine the incidence and severity of graft-versus-host disease (GVHD) in patients undergoing treatment on this regimen.
  3. To evaluate engraftment rates and lymphoid reconstitution in patients treated on this trial.
  4. To assess overall survival at 1 and 3 years past HSCT in patients treated on this trial.

REDUCED INTENSITY CONDITIONING: Patients receive fludarabine phosphate intravenously (IV) over 60 minutes on days -15 to -12, thiotepa IV over 2 hours on days -15 to -13, donor lymphocyte infusion (DLI) on day -6, and cyclophosphamide IV over 2 hours on days -3 and -2. Patients also undergo total-body irradiation (TBI) on day -10.

TRANSPLANT: Patients undergo allogeneic peripheral blood stem cell transplant (PBSCT) on day 0.

GVHD PROPHYLAXIS: Patients receive tacrolimus IV on days -1 to 42 followed by taper and mycophenolate mofetil IV twice daily (BID) on days -1 to 28.

After completion of study treatment, patients are followed up periodically.

Clinical Study Identifier: NCT01760655

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