• Biol. Blood Marrow Transplant. · Jan 2013

    Clinical Trial

    Unmanipulated haploidentical bone marrow transplantation and posttransplantation cyclophosphamide for hematologic malignancies after myeloablative conditioning.

    • Anna Maria Raiola, Alida Dominietto, Anna Ghiso, Carmen Di Grazia, Teresa Lamparelli, Francesca Gualandi, Stefania Bregante, Maria Teresa Van Lint, Simona Geroldi, Silvia Luchetti, Filippo Ballerini, Maurizio Miglino, Riccardo Varaldo, and Andrea Bacigalupo.
    • Divisione Ematologia e Trapianto di Midollo, IRCCS San Martino, Genova, Italy.
    • Biol. Blood Marrow Transplant. 2013 Jan 1; 19 (1): 117-22.

    AbstractFifty patients with high-risk hematologic malignancies, underwent an unmanipulated haploidentical bone marrow transplantation (BMT), followed by posttransplantation high-dose cyclophosphamide (PT-CY): the myeloablative (MA) conditioning consisted of thiotepa, busulfan, fludarabine (n = 35), or total body irradiation (TBI), fludarabine (n = 15). The median age was 42 years (range, 18-66 years); 23 patients were in remission, 27 had active disease, and 10 patients were receiving a second allograft. Graft-versus-host disease (GVHD) prophylaxis consisted in PT-CY on day +3 and +5, cyclosporine (from day 0), and mycophenolate (from day +1). Three patients died before engraftment, and 2 patients had autologous recovery: 45 patients (90%) had full-donor chimerism on day +30. The median day for neutrophil engraftment was day +18 (range, 13-30 days). The cumulative incidence of grade II-III acute GVHD (aGVHD) was 12%, and of moderate chronic GVHD (cGVHD) 10%. With a median follow-up for surviving patients of 333 days (range, 149-623 days), the cumulative incidence of transplantation-related mortality (TRM) was 18%, and the rate of relapse was 26%. The actuarial 22-month disease-free survival (DFS) rate was 68% for patients in remission and 37% for patients with active disease (P < .001). Causes of death were pneumonia (n = 3), hemorrhage (n = 3), sepsis (n = 3), and relapse (n = 7). In conclusion, an MA conditioning regimen followed by haploidentical BMT with PT-CY results in a low risk of aGVHD and cGVHD and encouraging rates of TRM and DFS.Copyright © 2013 American Society for Blood and Marrow Transplantation. Published by Elsevier Inc. All rights reserved.

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