Key Words: Chronic myeloid leukemia, allogeneic BMT, Peripheral Blood Stem Cell Transplantation, Bone Marrow Stem

years with a median age of 29, underwent hematopoietic stem cell transplantation. Eighty-eight patients were in the first chronic phase of disease. Twenty-three patients received bone marrow transplantation (BMT) and 66 patients received peripheral blood stem cell transplantations (PBSCT). Transplantation was performed at a median interval of 19 months post-diagnosis. All with five exceptions received busulfan + cyclophosphamide (Bu Cy) conditioning regimens. To maintain graft vs. host disease (GVHD) prophylaxis, all with three exceptions received cyclosporine + metothrexate. Administration of granulocyte colony stimulating factor (G-CSF), per protocol, was included in post-transplantation regimens from the year 1999 on 48 patients. All patients received marrow transplantations from sibling donors. Fifty seven of transplanted patients are alive. Disease free survivals (DFS) from 6.2 to 9.5 and from 2.2 to 6.2 years for BMT group were 38.2 % and 47.8%, respectively