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  • Title: Allogeneic stem cell transplantation for relapsed or refractory lymphoma after conditioning with BEAM/fludarabine/TBI.
    Author: O'Meara A, Halter J, Heim D, Gerull S, Bucher C, Passweg J, Buser A, Stern M.
    Journal: Biol Blood Marrow Transplant; 2013 Jan; 19(1):82-6. PubMed ID: 22897965.
    Abstract:
    Allogeneic stem cell transplant (SCT) after high-dose conditioning with BEAM/fludarabine/total body irradiation (TBI) in patients with relapsed or refractory lymphoma has shown promising results in a pilot study. In this trial, we treated 50 consecutive patients with refractory or relapsed lymphoma or chronic lymphocytic leukemia (CLL). The patients included were considered to have poor-prognosis disease (eg, one-third was chemo-refractory at transplantation and more than one-half had failed previous autologous or allogeneic SCT). All patients engrafted and achieved full donor chimerism. Grade II-IV acute graft-versus-host disease (aGVHD) occurred in 64% of patients (95% confidence interval [CI], 52% to 79%), and chronic GVHD (cGVHD) in 51% (95% CI, 36% to 66%). At 3 years, overall survival was 61% (95% CI, 46% to 75%). Progression-free survival was 55% (95% CI, 40% to 70%), with 30% (95% CI, 19% to 47%) transplantation-related mortality and a relapse incidence of 15% (95% CI, 7% to 32%). Disease classification and stage as well as remission status at transplantation and type of previous treatment (including previous SCT) had no significant impact on transplantation outcome. In conclusion, allogeneic SCT after BEAM/fludarabine/TBI provides excellent tumor control with complete and durable remissions in patients with poor-prognosis lymphoma and CLL. High rates of GVHD and GVHD-related mortality associated with this regimen are a major concern and warrant modification of the regimen in the future.
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