Abstract
To investigate the possible risk factors for death at post-treatment in children with acute lymphoblastic leukemia (ALL). A multivariate competing risk analysis was performed to retrospectively analyze the data of children with ALL who died after treatment with CCCG-ALL-2015 in China and to determine the possible risk factors for death at post-treatment in children with ALL. Age at the first diagnosis of ≥10 years; final risk level of high-risk; D19 minimal residual disease (MRD) (≥0.01%) and D46 MRD (≥0.01%); genetic abnormalities, such as KMT2A-rearrangement, c-Myc rearrangement, and PDGFRB rearrangement; and the presence of CNS3 (all P values, <0.05) were identified as independent risk factors, whereas the risk level at the first diagnosis of low-risk (LR) and ETV6::RUNX1 positivity was considered as independent protective factors of death in children with ALL. Among the 471 cases of death, 45 cases were treated with CCCG-ALL-2015 only, and 163 (34.61%) were treatment-related, with 62.42% due to severe infections. 55.83% of treatment-related mortality (TRM) occurred in the early phase of treatment (induction phase). TRM has a significant impact on the overall survival of pediatric patients with ALL. Moreover, the CCCG-ALL-2015 regimen has a better safety profile for treating children with ALL, with rates close to those in developed countries (registration number: ChiCTR-IPR-14005706; date of registration: June 4, 2014).
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Acknowledgements
We thank the members of the Department of Hematology/Oncology at CCCG for their assistance in data collection.
Funding
This research was supported by the viva China children’s cancer foundation; discipline co-construction project of pediatrics and physiology, grant number 2020lcxk017; the discipline co-construction project of pediatrics and immunology, grant number 2021lcxk030; the Bei**g Bethune Medical Science Research Foundation, grant number sce128en; the clinical research and cultivation program of the second affiliated hospital of Anhui Medical University, grant number 2020lcysocs304. We thank Bullet Edits Limited for Bullet Edits the linguistic editing and proofreading of the manuscript.
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All authors contributed to the study conception and design. The structure of this manuscript was conceived and designed by KL, JS, NW, and HJ. The original draft of the manuscript was written by KL. Writing review and editing were performed by KL, NW, and SS. All authors have read and agreed to the final manuscript.
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Liu, K., Shao, J., Cai, J. et al. Causes of death and treatment-related mortality in newly diagnosed childhood acute lymphoblastic leukemia treatment with Chinese Children’s Cancer Group study ALL-2015. Ann Hematol 102, 3431–3444 (2023). https://doi.org/10.1007/s00277-023-05389-x
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DOI: https://doi.org/10.1007/s00277-023-05389-x