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  • Title: Partially mismatched related donor bone marrow transplantation as salvage for patients with AML who failed autologous stem cell transplant.
    Author: Godder KT, Mehta J, Chiang KY, Adams S, van Rhee F, Singhal S, Higgins-Smith K, O'Neal W, DeRienzo S, Henslee-Downey JP.
    Journal: Bone Marrow Transplant; 2001 Dec; 28(11):1031-6. PubMed ID: 11781612.
    Abstract:
    Treatment options for patients who relapse are limited and the outcome is dismal. Between August 1993 and January 1999, 17 patients, median age 26 (4-44) years, underwent T cell depleted bone marrow transplant from partially mismatched related donors (PMRD), as a salvage for AML relapsing after an autograft. The median time from auto-transplant to relapse was 7 months (1.5-24) and the interval between transplants was 10 months (3-30). All patients had active leukemia at time of transplant. Donors were siblings (n = 8), parents (n = 2), daughters (n = 4) and others (n = 3), and 82% were > or = 2 major HLA antigen mismatched with the recipient. The conditioning therapy included total body irradiation in 14 patients and was busulfan-based in three. Graft-versus-host disease (GVHD) prophylaxis consisted of partial T cell depletion along with post-transplant immunosuppression. Median day to engraftment was 16 days (12-20). Acute GVHD was seen in six patients, and chronic GVHD in four of 13 surviving beyond 100 days. Ten patients died of non-relapse causes, at 1-588 (median 77) days. Two patients relapsed at 3 and 4 months. Five patients (29%) are surviving leukemia-free 42-84 months post transplant (median 68 months). A short interval between transplants was predictive of early relapse but not mortality. Age <18 and <2 organ toxicities were marginally predictive of better survival. We conclude that BMT from PMRD is a reasonable option for patients with refractory AML post autograft.
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