Abstract
This study aimed to address the prognostic impact of center experience based on the data of 7821 adults with acute myeloid leukemia who underwent allogeneic hematopoietic cell transplantation (HCT) from 2010 to 2019 in Japan, where medical care was provided within a uniform healthcare system. Center experience was defined based on the number of allogeneic HCTs performed for any indication during the study period, by which centers were divided into low-, intermediate-, and high-volume centers. After adjusting for known confounding factors, the risk of overall mortality was lowest for the high-volume centers and highest for the low-volume centers, with the difference between the center categories attributed primarily to the risk of relapse. Patients transplanted at high-volume centers had higher risks of acute and chronic graft-versus-host diseases but without an increased risk of non-relapse mortality (NRM). These findings reveal the presence of a center effect in allogeneic HCT conducted during the past decade in Japan, highlighting the difference in relapse based on center experience. The weaker effect on NRM compared with that on relapse suggests that the transplantation care quality is becoming equalized across the country.
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Data availability
The data of this study are not publicly available due to ethical restrictions that it exceeds the scope of the recipient/donor’s consent for research use in the registry. Data may be available from the corresponding author upon reasonable request and with permission of the JSTCT/JDCHCT.
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Acknowledgements
This work was supported in part by a grant from the Aichi Cancer Research Foundation, grant number: 2023-1-7 (MY), and a grant from the Practical Research Project for Allergic Diseases and Immunology (Research Technology of Medical Transplantation) from the Japan Agency for Medical Research and Development (AMED) (grant no. 19ek0510023h0003) (YA).
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MY designed the study, analyzed data, interpreted the results, and drafted the paper; SY, YK, K Kawamura, and TK interpreted results and edited the paper; TF, TI, YH, HG, K Kato, FI, AS, M Onizuka, KM, YI, AY, M Ohbiki, KT, YA, and JK contributed to data management, interpreted the results, and edited the paper; and all authors approved the final version of the paper.
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Yanada, M., Yano, S., Kuwatsuka, Y. et al. The effect of center experience on allogeneic hematopoietic cell transplantation outcomes in acute myeloid leukemia. Bone Marrow Transplant 59, 541–549 (2024). https://doi.org/10.1038/s41409-024-02222-5
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DOI: https://doi.org/10.1038/s41409-024-02222-5