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EBMT risk score can predict the outcome of leukaemia after unmanipulated haploidentical blood and marrow transplantation

Bone Marrow Transplantation volume 49, pages 927–933 (2014)Cite this article

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Abstract

Systematic, standardised pretransplant risk assessment is an important tool for predicting patient outcomes following allogeneic haematopoietic SCT (HSCT). To assess the European Group for Blood and Marrow Transplantation (EBMT) risk score capacities for predicting patient outcomes following unmanipulated haploidentical blood and marrow transplantation (HBMT), we analysed 502 leukaemia patients who received transplants at our centre between 2008 and 2010. The cohort OS and leukaemia-free survival (LFS) were 72.1% and 68.1%, whereas the cumulative non-relapse mortality (NRM) and relapse incidences were 16.5% and 16.1%. According to univariate analysis, the values for OS, LFS and NRM were worse for an EBMT risk score of 6 (40.0, 40.0, 50.0%) than a score of 1 (83.1, 78.3, 8.4%). Hazard ratios steadily increased for each additional score point. Likewise, a higher EBMT risk score was associated with an increased relapse incidence. Importantly, the EBMT risk score prognostic value regarding OS, LFS, NRM and relapse was maintained in the multivariate analysis. Moreover, we also made a haploidentical EBMT (haplo-EBMT) risk score, which used number of HLA disparity instead of donor type, and the haplo-EBMT risk scores can also be used to predict patient outcomes following unmanipulated HBMT.

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Acknowledgements

This work was supported in part by the Key Program of National Natural Science Foundation of China (Grant No. 81230013), Scientific Research Foundation for Capital Medicine Development (2011-4022-08), Chang Jiang Scholars Program, Beijing Municipal Science and Technology Commission (No. Z121107002612035), Beijing Municipal Science and Technology Commission (No. Z111107067311070) and Beijing Municipal Science and Technology Commission (No. Z121107002812033). We thank Rachel G and Cara B, medical editors at the American Journal Experts, for providing editing assistance to the authors during the preparation of this manuscript.

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Authors and Affiliations

  1. Peking University People's Hospital, Peking University Institute of Hematology, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China

    H-t Wang, Y-j Chang, L-p Xu, D-h Liu, Y Wang, K-y Liu & X-j Huang

  2. Peking-Tsinghua Centre for Life Sciences, Beijing, China

    X-j Huang

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  1. H-t Wang
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Correspondence to X-j Huang.

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Wang, Ht., Chang, Yj., Xu, Lp. et al. EBMT risk score can predict the outcome of leukaemia after unmanipulated haploidentical blood and marrow transplantation. Bone Marrow Transplant 49, 927–933 (2014). https://doi.org/10.1038/bmt.2014.80

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