Abstract
We examined the role of hematopoietic stem cell transplantation (HSCT) for patients aged< or =18 years with refractory or recurrent Burkitt (n=41), lymphoblastic (n=53), diffuse large B cell (DLBCL; n=52), and anaplastic large cell lymphoma (n=36), receiving autologous (n=90) or allogeneic (n=92; 43 matched sibling and 49 unrelated donor) HSCT in 1990-2005. Risk factors affecting event-free survival (EFS) were evaluated using stratified Cox regression. Characteristics of allogeneic and autologous HSCT recipients were similar. Allogeneic donor HSCT was more likely to use irradiation-containing conditioning regimens, bone marrow (BM) stem cells, be performed in more recent years, and for lymphoblastic lymphoma. EFS rates were lower for patients not in complete remission at HSCT, regardless of donor type. After adjusting for disease status, 5-year EFS were similar after allogeneic and autologous HSCT for DLBCL (50% vs 52%), Burkitt (31% vs 27%), and anaplastic large cell lymphoma (46% vs 35%). However, EFS was higher for lymphoblastic lymphoma, after allogeneic HSCT (40% vs 4%; P < .01). Predictors of EFS for progressive or recurrent disease after HSCT included disease status at HSCT and use of allogeneic donor for lymphoblastic lymphoma. These data were unable to demonstrate a difference in outcome by donor type for the other histological subtypes.
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