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  • Title: Big BU/CY is associated with a favorable long-term outcome in patients allotransplanted for chronic myelogenous leukemia in chronic phase.
    Author: Bonini A, Bandini G, Rosti G, Rondelli D, Testoni N, Remiddi C, Motta MR, Rizzi S, Mangianti S, Campanini E, Zuffa E, Tura S.
    Journal: Bone Marrow Transplant; 1998 Jun; 21(11):1085-9. PubMed ID: 9645569.
    Abstract:
    Twenty-six adult patients, median age 36 years (range 21-53) with chronic myeloid leukemia in first chronic phase were allotransplanted between October 1989 and May 1995. The preparative regimen consisted of busulphan 16 mg/kg and cyclophosphamide 200 mg/kg (big BU/CY). Cyclosporin A and methotrexate were used for GVHD prophylaxis. Twenty-two donors were HLA-identical siblings and four donors were mismatched for one antigen of class I. The global incidence of acute GVHD was 50%, that of severe aGVHD (grades 3-4) was 11%; the global incidence of chronic GVHD was 30%. No patients developed veno-occlusive disease of the liver or interstitial pneumonia. Five patients died, one of relapse, four of transplant-related causes, mostly related to aGVHD; thus, the transplant-related mortality was 16%. Twenty-one patients are alive, in remission, with a median follow-up of 55 months (range 24-90); actuarial probability of survival is 78% (CI 64-96). Our study shows that this conditioning regimen is relatively easy to administer and seems to be as effective as, if not superior to, regimens containing TBI, in patients with chronic myeloid leukemia in chronic phase and the transplant-related mortality is not excessive even in older patients.
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