Conditions: Graft-vs-Host Disease
Keywords: GVHD Stem cell transplantation Sirolimus
Allocation: NON_RANDOMIZED | Intervention model: SINGLE_GROUP
Enrollment: 15
Healthy volunteers: no

Brief summary:
This trial will test the hypothesis that the combination of sirolimus, mycophenolate mofetil, and bortezomib will be effective in preventing both acute and chronic GVHD after reduced intensity allogeneic stem cell transplantation.

Detailed description:
The combination of tacrolimus and methotrexate is standard therapy for prevention of GVHD, however, our recent experience has demonstrated that the substitution of sirolimus for methotrexate provides superior GVHD control with reduced transplant-related toxicity. One limitation to the use of calcineurin inhibitors in GVHD prevention is the disruption in Treg function and proliferation. Based on our evolving understanding of the role of Treg in the development of chronic GVHD, we propose a GVHD prophylactic regimen that is effective in prevention of acute GVHD, but by virtue of the maintenance of Treg activity may be able to prevent chronic GVHD. We hypothesize that the substitution of mycophenolate mofetil for tacrolimus as well as the addition of bortezomib may provide similar protection against acute GVHD and prevent chronic GVHD while minimizing renal toxicity after transplantation.

Arms:
arm 1: Sirolimus and Mycophenolate Mofetil as GVHD Prophylaxis Sirolimus (Rapamycin); Mycophenolate Mofetil (MMF) arm 2: Sirolimus, Mycophenolate Mofetil, and Bortezomib as GVHD Prophylaxis Sirolimus (Rapamycin); Mycophenolate Mofetil (MMF) Bortezomib (Velcade) \*added with study reopening in 2012

Interventions: intervention 1: Sirolimus intervention 2: Mycophenolate mofetil intervention 3: Bortezomib
Intervention descriptions: intervention 1: None intervention 2: None intervention 3: None

Protocol document: