Abstract
In this real-world study, 153 adult T-cell lymphoblastic lymphoma (T-LBL) patients from sixteen centers in Shanghai were enrolled. Out of them, 103 (67.3%) achieved complete remission (CR). The 2-year overall survival (OS) and progression-free survival (PFS) were 56.3% and 47.6%, respectively. In multivariate analysis, CR after induction treatment significantly improved the OS (p = 0.002) and PFS (p = 0.001). Among CR patients, allogeneic peripheral blood stem cell transplantation (allo-PBSCT) significantly lowered the cumulative incidence of relapse (CIR) compared to autologous PBSCT (p = 0.043) and non-SCT (p = 0.001). Among patients undergoing allo-PBSCT in CR, early (within four induction courses) and late CR (after four induction courses) didn’t impact the prognosis with similar 2-year OS (p = 0.590), PFS (p = 0.858), CIR (p = 0.50), and non-relapse mortality (NRM) (p = 0.110). Early and deferred allo-PBSCT for early CR patients also yielded similar 2-year OS (p = 0.640), PFS (p = 0.970), CIR (p = 0.994), and NRM (p = 0.974). As a time-dependent covariate, allo-PBSCT presented a positive effect on PFS (p = 0.018) and had a trend toward better OS (p = 0.064). These data suggested that allo-PBSCT should be considered for T-LBL patients upon achieving CR to enhance survival and reduce relapse risk.
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Data availability
The data that support the findings of this study are available from the corresponding author upon reasonable request.
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Acknowledgements
We acknowledge all authors and patients participating in this study. This work was supported by National Key R&D Program of China (2019YFA0111000 for Song X), a three-year development project from Shanghai Shen Kang Hospital Development Center (SHDC2020CR1012B for Song X), the National Natural Science Foundation of China (81570148 for Song X), and the Clinical Research Innovation Plan of Shanghai General Hospital (CCTR-2022C04 for Niu J).
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Xianmin Song and Rong Tao conceptualized and/or supervised the study. Fangfang Yu and Jiahua Niu analyzed the data and plotted the figures. Jianmin Yang, Jian Hou, Siguo Hao, Aibin Liang, Hong Xiong, Qi Zhu, Ligen Liu, Jun Shi, Juan Du, Bobin Chen, Rong Wei, Wenli Zhao, Lihua Sun, and Yunhua Hou provided patients’ clinical data. Fangfang Yu wrote the manuscript. Xianmin Song revised the manuscript. All authors have read and approved the final version of the manuscript.
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The studies involving humans were approved by Ethics Committee of Shanghai General Hospital. The studies were conducted in accordance with the local legislation and institutional requirements. Written informed consent for participation was not required from the participants or the participants’ legal guardians/next of kin in accordance with national legislation and institutional requirements.
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Yu, F., Niu, J., Yang, J. et al. Optimal timing and impact of allogeneic peripheral blood stem cell transplantation in adult T-cell lymphoblastic lymphoma: insights from a large cohort multi-center real-world study in Shanghai. Bone Marrow Transplant 60, 380–388 (2025). https://doi.org/10.1038/s41409-024-02500-2
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DOI: https://doi.org/10.1038/s41409-024-02500-2