A Randomized Trial of Extracorporeal Photopheresis, Pentostatin, and Total Body Irradiation Versus Pentostatin and Total Body Irradiation in Patients Undergoing Reduced Intensity Allogeneic Stem Cell Transplantation for the Treatment of Malignancies
One of the complications of allogeneic stem cell transplant (ASCT) is graft versus host
disease (GVHD). This is when the donor cells that are infused attack the body organs. This
can cause serious illness and even death. The chance of getting serious life threatening
GVHD with conventional transplant conditioning regimens is 25-50% depending on whether the
donor bone marrow is from a family member or an unrelated person. The reduced intensity
conditioning regimen used in this study involves a drug called pentostatin as well as a
reduced dose of radiation and a treatment called photopheresis. This regimen has been
successfully used in 106 patients. The incidence of serious GVHD in those patients was much
less than expected: 8% for patients getting bone marrow from a family member and 23% for
those getting bone marrow from an unrelated person. The pentostatin and radiation parts of
this reduced intensity conditioning regimen are similar to other types of reduced intensity
regimens, which use drugs similar to pentostatin. The unique part of this regimen compared
to others is the use of extracorporeal photopheresis (ECP).
While ECP has been used in 106 patients as part of a reduced intensity conditioning regimen,
it is unknown whether adding ECP to pentostatin and radiation is what caused the reduced
rate of GVHD that was seen in the previous study that was done. The use of ECP as part of a
conditioning regimen is investigational. ECP is approved by the U.S. Food and Drug
Administration (FDA) for the treatment of cutaneous T-cell lymphoma, but is not approved by
the FDA for use prior to ASCT.
Because it is not known whether the use of ECP in the reduced intensity conditioning regimen
was what caused the low incidence of GVHD, this research study will look at differences in
getting GVHD based on whether you receive ECP. Half the patients in this research study will
receive ECP as part of their reduced intensity-conditioning regimen and the other half will
not. Patients will be randomized (50% chance you will receive ECP and 50% chance you will
not). Both groups will receive pentostatin and reduced dose total body irradiation. The
primary purpose of this research study is to look at the chance of developing serious GVHD
within the first 100 days after transplant within each group.
Interventional
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
Incidence of grade 2-4 acute graft versus host disease following allogeneic stem cell transplantation in patients randomized to photopheresis vs. no photopheresis
Day +100 following allogeneic stem cell transplant
No
Francine Foss, M.D.
Principal Investigator
Yale University
United States: Institutional Review Board
0508000433
NCT00402714
July 2006
January 2010
Name | Location |
---|---|
Yale Comprehensive Cancer Center at Yale University School of Medicine | New Haven, Connecticut 06520-8064 |
Tufts-New England Medical Center | Boston, Massachusetts 02111 |
Methodist Hospital - Texas Transplant Institute | San Antonio, Texas 78229 |