Journal of the Korean Cancer Association 1997;29(5): 874-885.
A Preliminary Report of Busulfan, Melphalan and Thiotepa or TBI-containing Bi-alkylator Chemotherapy as a Preparative Regimen for Allogeneic Bone Marrow Transplantation in Refractory or Relapsed Acute Leukemias
Catholic BMT Center, College of Medicine, The Catholic University of Korea, Seoul, Korea.
ABSTRACT
PURPOSE: We assessed the three-alkylator combination of busulfan, melphalan and thiotepa or TBI, melphalan and thiotepa conditioning for allogeneic stem cell transplantation in 7 adult patients with refractory or relapsed acute leukemias.
MATERIALS AND METHODS: Six patients were transplanted for acute myeloid leukemia, one for acute lymphoblastic leukemia and included 5 of relapsed refractory, 2 of relapsed after first-BMT. All but 1 cases received G-CSF stimulated CD34+ allogeneic peripheral blood progenitor cells (PBPCs) in addition to stimulated allogeneic marrow.
RESULTS: All patients except one engrafted (median time to ANC >0.5 10 (9)/L=11days, to platelets >30 X 10 (9)/L=14 days) successfully and complete remission was obtained in 6 patients. Grade I-II acute GVHD and controllable regimen-related toxicity especially oral mucositis (grade II-III) developed in all cases, but 2 patients including one second- allogeneic BMT patient expired early by transplant-related toxicity of hepatic or multiorgan failure along the course of sepsis.
CONCLUSION: Although the observation period on these cases are limited, the data presented show that the combination of busulfan, melphalan and thiotepa is tolerable as a preparative regimen for allogeneic marrow transplantation in high-risk leukemic patients. We think that these encouraging results need to be confirmed in prospective studies in the future.
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