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In this study donor bone marrow transplantation is divided into a two step process to try to significantly reduce the side effects of the procedure yet still provide patients with multiple myeloma the benefits of this procedure
Full description
PRIMARY OBJECTIVES:
I. To evaluate engraftment of human leukocyte antigen (HLA) identical peripheral blood stem cell (PBSC) allografts given after conditioning with total-body irradiation (TBI) (200 cGy) and post-grafting immunosuppression with cyclosporine (CSP)/mycophenolate mofetil (MMF) in myeloma patients initially cytoreduced with high-dose melphalan.
II. To evaluate non-relapse mortality at day 100 post allografting. III. To evaluate the efficacy of this allografting strategy in terms of long-term progression free survival (PFS).
OUTLINE:
CONDITIONING REGIMEN: Patients receive high-dose melphalan intravenously (IV) over 15-20 minutes on day -2.
TRANSPLANTATION: Patients undergo autologous bone marrow or PBSC transplantation (PBSCT) on day 0.
NON-MYELOABLATIVE CONDITIONING REGIMEN: Beginning 40-120 days after autologous transplant, patients undergo TBI on day 0.
TRANSPLANTATION: Patients undergo donor PBSCT on day 0.
IMMUNOSUPPRESSION: Patients receive cyclosporine IV twice daily (BID) on days -1 and 0 and orally (PO) BID on days 1-80 with taper based on evaluation of disease response and graft-versus-host disease (GVHD). Patients also receive mycophenolate mofetil PO BID on days 0-27.
POST-TRANSPLANTATION DONOR LYMPHOCYTE INFUSION (DLI): Beginning 4 weeks after immunosuppression, patients achieving persistent or progressive disease may undergo DLI over 30 minutes every 4 weeks for up to 3 treatments.
After completion of study treatment, patients are followed up for 3 years.
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40 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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