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Blood Cancer J:小儿急性髓性白血病的两药与三药诱导化疗比较:一项随机对照试验

2022-09-08 将军的九分裤 MedSci原创

急性髓系白血病(AML)与老年人相比,在儿童中比较罕见。在过去的几十年里,在高收入国家(HICs)的儿童AML的生存率有了显著的改善。这种改善是通过更好的风险分层、改进的支持性护理和异基因造血干细胞移

急性髓系白血病(AML)与老年人相比,在儿童中比较罕见。在过去的几十年里,在高收入国家(HICs)的儿童AML的生存率有了显著的改善。这种改善是通过更好的风险分层、改进的支持性护理和异基因造血干细胞移植(HSCT)实现的。但目前在小儿急性髓性白血病 (AML) 中,尚未评估三药诱导化疗相对于二药诱导化疗的益处。因此,一研究团队进行了一项随机对照试验,以确定三药诱导方案的益处。

将新诊断为 AML 的 1-18 岁患者随机接受两个周期的柔红霉素和 ara-C (DA) 诱导化疗或两个周期的 ara-C、柔红霉素和依托泊苷 (ADE)。诱导后,两组患者均接受了两个周期的高剂量ara-C巩固治疗。该研究的主要目的是比较两组之间的无事件生存期 (EFS)。次要目标包括比较复合完全缓解 (cCR) 率、总生存期 (OS) 和毒性。

该研究随机分配了 149 名患者,其中 77 名在 DA 组,72 名在 ADE 组。中位年龄为 8.7 岁,92 名(62%)患者为男性。中位随访时间为 50.9 个月。第二次诱导后 DA 和 ADE 组的 cCR 率分别为 82% 和 79% (p = 0.68)。DA 组有 13 例(17%)诱导死亡,ADE 组有 12 例(17%)(p = 0.97)。

图:Kaplan-Meier生存曲线。比较柔红霉素和ARAC(DA)组与ARAC、柔红霉素和依托泊苷(ADE)组的无事件生存期(EFS)(p=0.66),B比较DA组和ADE组的总生存期(OS)(p=0.74)。

表:两组研究人员之间3-5级毒性的比较

DA 和 ADE 组的 5 年 EFS 分别为 34.4% 和 34.5% (p = 0.66)。DA 和 ADE 组的 5 年 OS 分别为 41.4% 和 42.09% (p = 0.74)。方案之间的毒性没有显着差异。

总的来说,在该研究中,ADE和DA方案之间的EFS、OS、CR或毒性没有统计学差异。未来还需要进行随机对照试验来寻找儿童AML患者诱导化疗药物的最佳数量和周期。

 

原始出处:

Radhakrishnan V, Bakhshi S, Kayal S, Thampy C, Batra A, Shenoy PK, Kumar H, Rajaraman S, Chaudhary S, Bisht R, Dubashi B, Ganesan TS. Two-drug versus three-drug induction chemotherapy in pediatric acute myeloid leukemia: a randomized controlled trial. Blood Cancer J. 2022 Sep 6;12(9):131. doi: 10.1038/s41408-022-00726-1. PMID: 36068213.

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