Umbilical Cord Blood Transplantation From Unrelated Donors
Summary
This study is being done to determine how long it takes for the engraftment (recovery of blood cell counts) of umbilical cord stem cells and also how often engraftment of umbilical cord stem cells transplanted from an unrelated donor fails. Another purpose will be to document the rate of disease-free survival and the rate of relapse (a return of your disease or syndrome) as well as the incidence and severity of graft versus host disease (GvHD) following cord blood stem cell transplantation. GvHD is a complication of stem cell transplants in which white blood cells from the transplanted tissue (graft) attack the transplant recipient's body (host).
Detailed description
PRIMARY OBJECTIVES: I. Determine the kinetics of engraftment of umbilical cord blood (UCB) following transplantation into unrelated individuals. II. Determine the incidence of non-engraftment and secondary graft failure when unrelated donor UCB cells are administered to patients receiving myeloablative, reduced intensity cytoreductive, or non-ablative conditioning regimens together with immunosuppressive therapy. III. Determine the incidence and severity of graft-vs-host disease (GVHD) for patients receiving unrelated donor UCB grafts. IV. Document the overall survival, disease-free-survival, and rates of relapse for UCB transplant recipients. OUTLINE: This is an observational study. Patients undergo a conditioning regimen per standard of care at the discretion of the treating provider, followed by a planned UCB transplantation on study. Patients also have their medical records reviewed for engraftment data on study.
Arms & interventions
- RadiationTotal Body Irradiation 1200 cGy
Total Body Irradiation 1200 cGy in 8 fractions
- RadiationTotal Body Irradiation 200 cGy
Total Body Irradiation 200 cGy in one fraction
- DrugCyclophosphamide
50 mg/kg or 60 mg/kg
- DrugMesna
50 mg/kg or 60 mg/kg plus 10% loading dose
- ProcedureCord Blood Infusion
Intravenous infusion of cord blood stem cells
- DrugBusulfan
0.8 mg/kg x 16 doses
- DrugFludarabine
30 mg/m2/day x 5 or 40 mg/m2/day x 5
- DrugMelphalan
140 mg/m2
Outcome measures
Primary
Engraftment of ANC and Platelets
The date of engraftment of ANC is the first of 3 consecutive days of ANC of 500 or higher based on daily CBC and Differential Counts. The date of engraftment of platelets is the first of three consecutive days of platelet counts of 20,000 or higher in the absence of platelet transfusions for a t least 7 days prior.
Time frame: 42 days following the infusion of stem cells for ANC [If engraftment of ANC does not occur within 42 days, a subsequent transplant will be performed if a donor is available.]
Secondary
Rate of non-engraftment and of secondary graft failure
Time frame: At 30 days, 100 days, 6 months and yearly from the date of transplant until the date of documented graft failure or the subject's death up to 120 months.
Incidence of acute graft-versus-host disease
Time frame: At 30 days and 100 days after transplant from the date of transplant until the date of documented acute GvHD.
Incidence of chronic graft-versus-host disease
Time frame: At 100 days, 6 months and yearly after transplant from the date of transplant until the date of documented graft failure or the subject's death up to 120 months.
Disease-free survival
Time frame: At 30 days, 100 days, 6 months and yearly after transplant from the date of transplant until the date of documented graft failure or the subject's death up to 120 months.
Eligibility criteria
Study locations (1)
Wilmot Cancer Institute
Rochester, New York, 14642