Abstract:
Objectives: To assess the efficacy of cord blood-assisted haploid peripheral blood stem cell transplantation (haplo-cord-PBSCT) versus unrelated donor peripheral blood stem cell transplantation (UD-PBSCT) in the treatment of malignant hematological diseases. Methods: A retrospective analysis was performed on one hundred and four patients with malignant hematological diseases who underwent haplo-cord-PBSCT and fifty-two patients who underwent UD-PBSCT at Xiangya Hospital of Central South University between January 2016 and December 2021. Results: ①The median implantation time for neutrophils in the haplo-cord-PBSCT and UD-PBSCT groups was 13 (9-22) days and 13 (10-24) days, respectively (P=0.834), whereas the median implantation time for platelets was 15 (7-103) days and 14 (8-38) days, respectively (P=0.816). The cumulative implantation rate of neutrophils at 30 days after transplantation in the haplo-cord-PBSCT group and the UD-PBSCT group was 100% (P=0.314), and the cumulative platelet implantation rate at 100 days after transplantation was 95.2% (95% CI 88.3% - 98.1% ) and 100% (P=0.927), respectively. 30 days after transplantation, both groups of patients achieved complete donor chimerism, and no umbilical cord blood stem cells were implanted. ②The cumulative incidence rates of grade Ⅱ-Ⅳ acute GVHD within 100 days after transplantation in the haplo-cord-PBSCT group and the UD-PBSCT group were 29.1% (95% CI 20.1% -38.1% ) and 28.8% (95% CI 17.2% -41.6% (P=0.965), respectively. The cumulative incidence rates of grade Ⅲ/Ⅳ acute GVHD were 7.8% (95% CI 3.6% -14.0% ) and 9.6% (95% CI 3.5% -19.5% ) (P=0.725). The cumulative incidence rates of 2-year chronic GVHD in the haplo-cord-PBSCT group and the UD-PBSCT group were 45.3% (95% CI 36.1% -56.1% ) and 35.1% (95% CI 21.6% -44.1% ), respectively (P=0.237). The cumulative incidence rates of severe chronic GVHD at 2 years after transplantation were 13.6% (95% CI 7.6% -21.3% ) and 12.9% (95% CI 5.1% -24.3% ), respectively (P=0.840). ③The 2-year CIR after transplantation in the haplo-cord-PBSCT group and UD-PBSCT group were 12.8% (95% CI 7.0% -20.5% ) and 10.0% (95% CI 3.6% -20.2% ), respectively (P=0.341), and the NRM were 14.7% (95% CI 8.4% -22.6% ) and 16.2% (95% CI 7.4% -28.0% ), respectively (P=0.681). ④The 2-year OS rates in the haplo-cord-PBSCT and UD-PBSCT groups after transplantation were 82.2% (95% CI 74.8% -90.3% ) and 75.5% (95% CI 64.2% -88.7% ), respectively (P=0.276). The 2-year DFS rates were 69.9% (95% CI 61.2% -79.8% ) and 73.8% (95% CI 62.4% -87.3% ), respectively (P=0.551). The 2-year rates of GVHD-free/recurrence-free survival (GRFS) were 55.3% (95% CI 44.8% -64.8% ) and 64.7% (95% CI 52.8% -79.3% ), respectively (P=0.284) . Conclusion: The findings of this study indicate that haplo-cord-PBSCT and UD-PBSCT have comparable efficacy and safety in the treatment of malignant hematological diseases and can be used as an alternative treatment options.
目的: 比较脐带血辅助单倍体外周血干细胞移植(haplo-cord-PBSCT)与无关供者外周血干细胞移植(UD-PBSCT)治疗恶性血液病的疗效。 方法: 对中南大学湘雅医院2016年1月至2021年12月的104例接受haplo-cord-PBSCT和52例接受UD-PBSCT)的恶性血液病患者进行回顾性分析。 结果: ①haplo-cord-PBSCT和UD-PBSCT组中性粒细胞中位植入时间分别为13(9~22)d、13(10~24)d(P=0.834),血小板植入中位时间分别为15(7~103)d、14(8~38)d(P=0.816)。haplo-cord-PBSCT组和UD-PBSCT组移植后30 d中性粒细胞累积植入率均为100.0%(P=0.314),移植后100 d血小板累积植入率分别为95.2%(95%CI 88.3%~98.1%)、100.0%(P=0.927)。移植后30 d两组患者均达到完全供者嵌合状态,未发生脐带血干细胞植入。②haplo-cord-PBSCT组与UD-PBSCT组移植后100 d内Ⅱ~Ⅳ度急性GVHD的累积发生率分别为29.1%(95%CI 20.1%~38.1%)、28.8%(95%CI 17.2%~41.6%(P=0.965),Ⅲ/Ⅳ度急性GVHD的累积发生率分别为7.8%(95%CI 3.6%~14.0%)、9.6%(95%CI 3.5%~19.5%)(P=0.725)。haplo-cord-PBSCT组与UD-PBSCT组2年慢性GVHD的累积发生率分别为45.3%(95%CI 36.1%~56.1%)、35.1%(95%CI 21.6%~44.1%)(P=0.237),移植后2年重度慢性GVHD的累积发生率分别为13.6%(95%CI 7.6%~21.3%)、12.9%(95%CI 5.1%~24.3%)(P=0.840)。③haplo-cord-PBSCT组、UD-PBSCT组移植后2年CIR分别为12.8%(95%CI 7.0%~20.5%)、10.0%(95%CI 3.6%~20.2%)(P=0.341),NRM分别为14.7%(95%CI 8.4%~22.6%)、16.2%(95%CI 7.4%~28.0%)(P=0.681)。④haplo-cord-PBSCT组、UD-PBSCT组移植后2年OS率分别为82.2%(95%CI 74.8%~90.3%)、75.5%(95%CI 64.2%~88.7%)(P=0.276),2年DFS率分别为69.9%(95%CI 61.2%~79.8%)、73.8%(95%CI 62.4%~87.3%)(P=0.551),2年无GVHD无复发生存(GRFS)率分别为55.3%(95%CI 44.8%~64.8%)、64.7%(95%CI 52.8%~79.3%)(P=0.284)。 结论: haplo-cord-PBSCT与UD-PBSCT治疗恶性血液病具有相似的疗效和安全性,可作为恶性血液病的替代治疗方案。.