Abstract
To investigate clinical characteristics and outcomes of transplantation in AML patients with FLT3-ITD/DNMT3A double mutation, we retrospectively analyzed 206 Chinese patients with AML after Sanger sequencing. Our analysis showed that AML patients with FLT3-ITD and DNMT3A R882 mutations had a higher white blood cell count and a lower complete remission (CR) rate after first induction chemotherapy. All 206 patients received allogeneic hematopoietic stem cell transplantation (allo-HSCT) in status of CR. These results indicate that AML patients with FLT3-ITD and DNMT3A R882 double mutation show a higher 2-year cumulative incidence of relapse (CIR), lower 2-year overall survival (OS) rate, and lower 2-year leukocyte-free survival (LFS) after allo-HSCT. The univariate and multivariate analyses confirmed that disease status prior to transplantation, FLT3-ITD, FLT3-ITD, and DNMT3A R882 double mutation were independent factors for poor prognosis after allo-HSCT. In summary, the present cohort study demonstrated that FLT3-ITD and DNMT3A R882 double mutation predicts poor prognosis in Chinese AML patients receiving chemotherapy or allo-HSCT treatment.
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Acknowledgements
This work was supported, in part, by research grants from the National Natural Science Foundation of China (81270645, 81470346, 81100390, 81100372), by Applied basic research of Suzhou science and technology progra (SYS201457), by Academic Program Development of Jiangsu Higher Education Institutions (PAPD) and The national key research and development program (2016YFC0902800), by Innovation Capability Development Project of Jiangsu Province (BM2015004).
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Tang, S., Shen, H., Mao, X. et al. FLT3-ITD with DNMT3A R882 double mutation is a poor prognostic factor in Chinese patients with acute myeloid leukemia after chemotherapy or allogeneic hematopoietic stem cell transplantation. Int J Hematol 106, 552–561 (2017). https://doi.org/10.1007/s12185-017-2256-7
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DOI: https://doi.org/10.1007/s12185-017-2256-7