Favorable outcomes with alemtuzumab-conditioned unrelated donor stem cell transplantation in adults with high-risk Philadelphia chromosome-negative acute lymphoblastic leukemia in first complete remission.
Authors
Patel, BellaKirkland, Keiren E
Szydlo, Richard
Pearce, Rachel M
Clark, Richard E
Craddock, Charles
Liakopoulou, Effie F
Fielding, Adele K
Mackinnon, Stephen
Olavarria, Eduardo
Potter, Mike N
Russell, Nigel
Shaw, Bronwen E
Cook, Gordon
Goldstone, Anthony H
Marks, David I
Affiliation
Department of Haematology, Royal Free and University College London Medical School, and BSBMT Data Registry, Guy's Hospital, London, UK.Issue Date
2009-10
Metadata
Show full item recordAbstract
BACKGROUND: Approximately 40% of adults with Philadelphia chromosome-negative acute lymphoblastic leukemia achieve long-term survival following unrelated donor hematopoietic stem cell transplantation in first complete remission but severe graft-versus-host disease remains a problem affecting survival. Although T-cell depletion abrogates graft-versus-host disease, the impact on disease-free survival in acute lymphoblastic leukemia is not known. DESIGN AND METHODS: We analyzed the outcome of 48 adults (median age 26 years) with high-risk, Philadelphia-chromosome-negative acute lymphoblastic leukemia undergoing T-cell depleted unrelated donor-hematopoietic stem cell transplantation (67% 10 of 10 loci matched) in first complete remission reported to the British Society of Blood and Marrow Transplantation Registry from 1993 to 2005. RESULTS: T-cell depletion was carried out by in vivo alemtuzumab administration. Additional, ex vivo T-cell depletion was performed in 21% of patients. Overall survival, disease-free survival and non-relapse mortality rates at 5 years were 61% (95% CI 46-75), 59% (95% CI 45-74) and 13% (95% CI 3-25), respectively. The incidences of grades II-IV and III-IV acute graft-versus-host disease were 27% (95% CI 16-44) and 10% (95% CI 4-25), respectively. The actuarial estimate of extensive chronic graft-versus-host disease at 5 years was 22% (95%CI 13-38). High-risk cytogenetics at diagnosis was associated with a lower 5-year overall survival (47% (95% CI 27-71) vs. 68% (95% CI 44-84), p=0.045). CONCLUSIONS: T-cell depleted hematopoietic stem cell transplantation from unrelated donors can result in good overall survival and low non-relapse mortality for adults with high-risk acute lymphoblastic leukemia in first complete remission and merits prospective evaluation.Citation
Favorable outcomes with alemtuzumab-conditioned unrelated donor stem cell transplantation in adults with high-risk Philadelphia chromosome-negative acute lymphoblastic leukemia in first complete remission. 2009, 94 (10):1399-406 HaematologicaJournal
HaematologicaDOI
10.3324/haematol.2009.008649PubMed ID
19648167Type
ArticleLanguage
enISSN
1592-8721ae974a485f413a2113503eed53cd6c53
10.3324/haematol.2009.008649