Fludarabine and 400 CGY Total Body Irradiation for Recipients of HLA-Matched or Mis-Matched Family or Unrelated Donor Hematopoietic Stem Cell Transplants Who Have Rejected Their First Allogeneic Stem Cell Transplant
Recruitment status was Recruiting
|First Received Date ICMJE||May 10, 2007|
|Last Updated Date||May 10, 2007|
|Start Date ICMJE||March 2007|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures ICMJE
||Stable allogeneic hematopoietic engraftment with fludarabine (150mg/m2) and TBI (400cGy), with post-transplantation immunosuppression utilizing tacrolimus and MMF.|
|Original Primary Outcome Measures ICMJE||Same as current|
|Change History||No Changes Posted|
|Current Secondary Outcome Measures ICMJE
||Incidence of acute and chronic GVHD after second allogeneic HCT utilizing Tac/MMF with peripheral blood stem cells from matched or mis-matched allogeneic donors, disease responses and survival after second allogeneic SCT.|
|Original Secondary Outcome Measures ICMJE||Same as current|
|Current Other Outcome Measures ICMJE||Not Provided|
|Original Other Outcome Measures ICMJE||Not Provided|
|Brief Title ICMJE||Fludarabine and 400 CGY Total Body Irradiation for Recipients of HLA-Matched or Mis-Matched Family or Unrelated Donor Hematopoietic Stem Cell Transplants Who Have Rejected Their First Allogeneic Stem Cell Transplant|
|Official Title ICMJE||Fludarabine and 400 CGY Total Body Irradiation for Recipients of HLA-Matched or Mis-Matched Family or Unrelated Donor Hematopoietic Stem Cell Transplants Who Have Rejected Their First Allogeneic Stem Cell Transplant|
Major Objectives A. To determine whether stable allogeneic hematopoietic engraftment can be safely established in patients who have rejected (<5% T Cell Chimerism) a previous allogeneic hematopoietic stem cell graft by using an allogeneic SCT from an HLA-Identical or non-identical family donor or unrelated donors, with fludarabine (150mg/m2) and TBI (400cGy), with post-transplantation immunosuppression utilizing tacrolimus and MMF.
B. To evaluate the incidence of transplant related mortality.
Minor Objectives A. To evaluate the incidence of acute and chronic GVHD after second allogeneic HCT utilizing Tac/MMF with peripheral blood stem cells from matched or mis-matched allogeneic donors.
B. To evaluate disease responses and survival after second allogeneic SCT. C. To evaluate the need for DLI after second transplant for either disease control or persistent mixed chimerism.
This protocol will evaluate the use of Fludarabine (150mg/m2) with TBI (400cGy) as pre-transplant conditioning for a second allogeneic stem cell transplant after initial graft rejection. Preliminary data suggest that the combination of Flu/TBI at the proposed doses is safer and more effective than prior second transplantation regimens published to date. As we perform more non-myeloablative transplantations we expect that this issue to arise more frequently. The preliminary data available indicate that the proposed regimen is the safest and most effective to instill donor hematopoiesis after the initial graft has been rejected.
We also wish to evaluate the safety and effectiveness of Tacrolimus and MMF as GVHD prophylaxis in patients receiving a second transplant. Tac/MMF is our current GVHD prophylaxis regimen. It has proven to be well tolerated and provide good protection against GVHD, even in heavily pretreated patients. We propose to use this standard first transplant GVHD prophylaxis to prevent GVHD after second transplantation. DLI may be given in the presence of disease progression or for mixed chimerism as clinically indicated.
|Study Type ICMJE||Interventional|
|Study Phase||Phase 2|
|Study Design ICMJE||Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Condition ICMJE||Graft Failure|
|Study Arm (s)||Not Provided|
|Publications *||Not Provided|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Recruitment Status ICMJE||Recruiting|
|Estimated Enrollment ICMJE||20|
|Completion Date||Not Provided|
|Primary Completion Date||Not Provided|
|Eligibility Criteria ICMJE||
Any patient who has rejected a previous allogeneic transplant (related or unrelated) rejection based on chimerism data from peripheral blood specimens showing loss of donor T Cells.
|Ages||18 Years to 74 Years|
|Accepts Healthy Volunteers||No|
|Location Countries ICMJE||United States|
|NCT Number ICMJE||NCT00472329|
|Other Study ID Numbers ICMJE||RMBMT-166-A|
|Has Data Monitoring Committee||No|
|Responsible Party||Not Provided|
|Study Sponsor ICMJE||Colorado Blood Cancer Institute|
|Collaborators ICMJE||Not Provided|
|Information Provided By||Colorado Blood Cancer Institute|
|Verification Date||May 2007|
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP