Intensive pretreatment protocol allogeneic hematopoietic stem cell transplantation to overcome poor prognosis in patients with t(6;9)/DEK-NUP214 acute myeloid leukemia
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摘要: 目的 探讨加强预处理方案异基因造血干细胞移植(allo-HSCT)治疗t(6;9)/DEK-NUP214急性髓系白血病(AML)的疗效。方法 对2015年3月—2023年4月应用加强预处理方案allo-HSCT治疗t(6;9)/DEK-NUP214 AML的32例患者资料进行回顾分析,观察疗效。结果 32例患者均获得造血重建,白细胞和血小板植活中位天数分别为+13(10~20) d、+12(6~29) d。预处理相关毒性(RRT)多发生于预处理2周内,Ⅰ/Ⅱ级RRT发生率为59.4%(19/32),最常见的是胃肠道反应(13/32),其次为肝损伤(9/32)。32例患者均未发生Ⅲ/Ⅳ级RRT。移植后中位随访44(3~107)个月,3年总生存(OS)率90.3%、无复发生存(RFS)率86.2%、累计复发率3.1%、移植相关死亡率9.4%。移植时完全缓解患者20例与未缓解患者12例二组比较,其3年OS率和RFS率比较差异无统计学意义(OS率:95.0% vs 82.5%,P=0.28;RFS率:87.7% vs 82.5%,P=0.61)。20例患者发病时携带FLT3-ITD与12例非携带FLT3-ITD患者比较,3年OS率和RFS率比较差异无统计学意义(OS率:95.0% vs 82.5%,P=0.3;RFS率:87.7% vs 82.5%,P=0.63)。结论 加强预处理方案allo-HSCT可克服t(6;9)/DEK-NUP214 AML患者不良预后和具有良好的耐受性,生存不受移植前状态和携带FLT3-ITD影响。
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关键词:
- DEK-NUP214 /
- t(6;9) /
- 急性髓系白血病 /
- 预处理 /
- 异基因造血干细胞移植
Abstract: Objective To explore the efficacy of an intensified conditioning regimen allogeneic hematopoietic stem cell transplantation(allo-HSCT) for t(6;9)/DEK-NUP214 acute myeloid leukemia(AML).Methods Between 2015 and 2023, 32 AML patients with t(6;9)/DEK-NUP214 fusion gene who underwent allo-HSCT were analyzed. All patients underwent an intensified conditioning regimen.Results Hematopoietic reconstitution was achieved in all 32 patients, with median days to leukocyte and platelet viability of 13(10-20) and 12(6-29) days, respectively. Pretreatment-related toxicity(RRT) occurred mostly within 2 weeks of pretreatment, with a grade Ⅰ/Ⅱ RRT incidence of 59.3%(19/32), most commonly gastrointestinal reactions(13/32), followed by hepatic injury(9/32). No patients experienced grade Ⅲ/Ⅳ RRT. With a median follow-up of 44(3-107) months after transplantation, the 3-year overall survival(OS) was 90.3%, relapse-free survival(RFS) was 86.2%, cumulative relapse rate was 3.1%, and transplant-related mortality was 9.4%. There were 20 patients in complete remission at the time of transplantation and 12 patients in no remission, and there was no difference in the comparison of 3-year OS and RFS between the two groups(OS: 95.0% vs 82.5%, P=0.28; RFS: 87.7% vs 82.5%, P=0.61). There was no difference in the 3-year OS and RFS in the 20 patients with FLT3-ITD compared with 12 patients without FLT3-ITD (OS: 95.0% vs 82.5%, P=0.3; RFS: 87.7% vs 82.5%, P=0.63).Conclusion Intensive pretreatment regimen allo-HSCT overcame poor prognosis and was well tolerated in patients with t(6;9)/DEK-NUP214 AML. Survival was not influenced by the state at transplant and FLT3-ITD.-
Key words:
- DEK-NUP214 /
- t(6;9) /
- acute myeloid leukemia /
- intensive pretreatment regimen /
- allo-HSCT
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表 1 患者一般资料
序号 性别 年龄/岁 FLT3-ITD基因突变 移植时CR情况 移植类型 移植方案 +1个月MRD 转归 复发 1 男 24 有 NRb 半合 FA/Bu/Cy/ATLG 阴 存活 否 2 女 36 有 CR1 半合 FA/Bu/Cy/ATLG 阴 存活 否 3 男 15 有 CR1 半合 CLAG/Bu/Cy/ATG 阴 存活 是 4 女 28 无 CR1 半合 FA/Bu/Cy/ATG 阴 死亡 否 5 女 47 无 NRa 半合 FA/Bu/Cy/ATG 阴 死亡 否 6 男 35 有 NRb 全合 CLAG/Bu/Cy/ATG 阴 存活 否 7 女 12 无 CR1 半合 Dec/Ara-C/Bu/Cy/ATLG 阴 存活 否 8 男 7 无 NRb 半合 FA/Bu/Cy/ATG 阴 存活 否 9 女 18 有 CRi 半合 Dec/Ara-C/Bu/Cy/ATLG 阴 存活 否 10 男 16 无 CRi 半合 IA/Bu/Cy/ATG 阴 存活 否 11 男 10 无 CR1 半合 FA/Bu/Cy/ATG 阴 存活 否 12 男 38 有 NRa 半合 CLAG/Bu/Cy/ATG 阴 存活 否 13 男 12 有 NRb 半合 Dec/Ara-C/Bu/Cy/ATG 阴 存活 否 14 女 54 有 NRa 半合 Dec/Ara-C/BU/Cy/ATG 阴 存活 否 15 女 15 有 CR1 半合 IA/Bu/Cy/ATG 阴 存活 否 16 男 9 无 CR1 半合 IA/Bu/Cy/ATLG 阴 存活 否 17 女 24 无 CRi 全合 Dec/Ara-C/Bu/Cy/ATG 阴 存活 否 18 男 12 无 NRa 半合 CLAG/Bu/Cy/ATG 阴 存活 否 19 男 15 无 NRb 半合 Dec/Ara-C/TBI/Cy/ATLG 阴 存活 否 20 女 30 有 CR1 半合 IA/Bu/Cy/ATG 阴 存活 否 21 男 22 无 CR1 半合 IA/Bu/Cy/ATG 阴 存活 否 22 女 46 有 NRa 半合 Dec/Ara-C/TBI/Cy/ATLG 阴 存活 否 23 女 6 有 CRi 半合 IA/Bu/Cy/ATG 阴 存活 否 24 女 24 有 NRb 半合 Dec/Ara-C/BU/Cy/ATLG 阴 死亡 否 25 女 25 有 CR1 半合 Dec/Ara-C/BU/Cy/ATLG 阴 存活 否 26 男 28 有 CR2 半合 FA/Bu/Cy/ATG 阴 存活 否 27 男 12 有 CR1 全合 IA/Bu/Cy/ATG 阴 存活 否 28 男 8 有 CR1 半合 Dec/Ara-C/Bu/Cy/ATLG 阴 存活 否 29 男 39 有 NRb 半合 FA/Bu/Cy/ATG 阴 存活 否 30 女 35 无 CR1 无关 Dec/Ara-C/Bu/Cy/ATG 阴 存活 否 31 女 51 有 CR1 半合 Dec/Ara-C/Bu/Cy/ATG 阴 存活 否 32 女 32 有 CR1 半合 Dec/Ara-C/Bu/Cy/ATG 阴 存活 否 注:NRa难治性白血病;NRb复发状态白血病;FA:氟达拉滨、阿糖胞苷;CLAG:克拉屈滨、阿糖胞苷、重组人粒细胞刺激因子。 表 2 预处理相关毒性情况
例(%) 部位 地西他滨强化组(n=13) 嘌呤核苷酸类似物强化组(n=12) 伊达比星强化组(n=7) 胃肠道 5(38.5) 5(41.7) 3(42.8) 口腔黏膜 2(15.4) 3(25.0) 1(14.2) 心脏 1(7.7) 0 0 肝脏 1(7.7) 5(41.7) 3(42.8) 肾脏 0 0 0 肺脏 0 0 0 神经系统 0 0 0 出血性膀胱炎 1(7.7) 0 0 -
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