Abstract
Systemic corticosteroid therapy is a well-established first-line treatment for grades II–IV acute graft-versus-host disease (aGVHD). Recently, several developments have occurred, including the introduction of transplantation from human leukocyte antigen (HLA) haploidentical donors using post-transplant cyclophosphamide (PTCY-Haplo), and improvements in prognosis after cord blood transplantation (CBT) in Japan. This study aimed to analyze the association between donor sources and outcomes in patients with aGVHD. Our study included 2732 patients who developed grades II–IV aGVHD, and were treated with systemic corticosteroids. We compared HLA-matched related donors (MRD), HLA-matched unrelated donors (MUD), PTCY-Haplo, and CBT. We set endpoint as response rate, 1-year cumulative incidence of non-relapse mortality (NRM), and overall survival (OS). The adjusted odds ratios for a complete response (CR) were 0.99 (95% confidence interval [CI]: 0.74–1.31, P = 0.925) for MUD, 2.08 (95% CI: 1.35–3.25, P = 0.001) for PTCY-Haplo, and 1.08 (95% CI: 0.83–1.41, P = 0.550) for CBT compared with MRD. A significant increase in response rates for PTCY were only found in a single-organ involvement. No significant association was observed between the donor source and NRM or OS. In conclusion, PTCY-Haplo is associated with a high response rate in patients with a single-organ aGVHD; however, MUD and CBT were not associated with treatment response.
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Data availability
The data for this study are not publicly available because of ethical restrictions that exceed the scope of the recipient’s or donor’s consent for research use in the registry.
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Acknowledgements
The authors thank all the physicians and data managers at the centers that contributed to the collection of data on transplantation for the Japanese Data Center for Hematopoietic Cell Transplantation and TRUMP2.
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YS designed the study, developed the models, performed statistical analysis, and wrote the first draft of the manuscript. TK, JS, TT, AS, TH, HN, and JK critically reviewed the data analysis and manuscript. YA managed the unified registry database. HN and JK advised on the methods, revised the manuscript, and were responsible for the co-project of JSTCT Donor/Source and JSTCT GVHD Working Groups, respectively. All the other authors contributed to data collection. All the authors approved the final version of the manuscript.
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This study was approved by the Data Management Committee of the Japanese Data Center for Hematopoietic Cell Transplantation and the Ethics Committee of the Kobe City Hospital Organization, Kobe City Medical Center General Hospital. All methods were performed in accordance with the relevant guidelines and regulations. Patient consent was obtained prior to registration in the Transplant Registry Unified Management Program 2.
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Shimomura, Y., Kitamura, T., Sugita, J. et al. Impact of donor type on the outcomes of acute graft versus host disease to systemic corticosteroid therapy. Bone Marrow Transplant 59, 1763–1772 (2024). https://doi.org/10.1038/s41409-024-02424-x
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DOI: https://doi.org/10.1038/s41409-024-02424-x
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