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The role of matched sibling donor allogeneic stem cell transplantation in pediatric high-risk acute myeloid leukemia: results from the AML-BFM 98 study

Lookup NU author(s): Professor Hermann Josef Vormoor


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Background The role of allogeneic stem cell transplantation in post-remission management of children with high-risk acute myeloid leukemia remains controversial. In the multi-center AML-BFM 98 study we prospectively evaluated the impact of allogeneic stem cell transplantation in children with high-risk acute myeloid leukemia in first complete remission. Design and Methods HLA-typed patients with high-risk acute myeloid leukemia, who achieved first complete remission (n = 247), were included in this analysis. All patients received double induction and consolidation. Based on the availability of a matched-sibling donor, patients were allocated by genetic chance to allogeneic stem cell transplantation (n = 61) or chemotherapy-only (i.e. intensification and maintenance therapy; n = 186). The main analysis was done on an intention-to-treat basis according to this allocation. Results Intention-to-treat analysis did not show a significantly different 5-year disease-free survival (49 +/- 6% versus 45 +/- 4%, P-log rank = 0.44) or overall survival (68 +/- 6% versus 57 +/- 4%, P-log rank = 0.17) between the matched-sibling donor and no-matched-sibling donor groups, whereas late adverse effects occurred more frequently after allogeneic stem cell transplantation (72.5% versus 31.8%, P-Fischer<0.01). These results were confirmed by as-treated analysis corrected for the time until transplantation (5-year overall survival: 72 +/- 8% versus 60 +/- 4%, PMantel-Byar 0.21). Subgroup analysis demonstrated improved survival rates for patients with 11q23 aberrations allocated to allogeneic stem cell transplantation (5-year overall survival: 94 +/- 6% versus 52 +/- 7%, Plog-rank = 0.01; n = 18 versus 49) in contrast to patients without 11q23 aberrations (5-year overall survival: 58 +/- 8% versus 55 +/- 5%, Plog-rank = 0.66). Conclusions Our analyses defined a genetic subgroup of children with high-risk acute myeloid leukemia who benefited from allogeneic stem cell transplantation in the prospective multi-center AML-BFM 98 study. For the remainder of the pediatric high-risk acute myeloid leukemia patients the prognosis was not improved by allogeneic stem cell transplantation, which was, however, associated with a higher rate of late sequelae. ( Identifier: #NCT00111345)

Publication metadata

Author(s): Klusmann JH, Reinhardt D, Zimmermann M, Kremens B, Vormoor J, Dworzak M, Creutzig U, Klingebiel T

Publication type: Article

Publication status: Published

Journal: Haematologica

Year: 2012

Volume: 97

Issue: 1

Pages: 21-29

Print publication date: 01/01/2012

ISSN (print): 0390-6078

ISSN (electronic): 1592-8721

Publisher: Fondazione Ferrata Storti


DOI: 10.3324/haematol.2011.051714


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Funder referenceFunder name
DKH 70-2315-RI4German Cancer Aid