在经过优化调节方案后,在无关的捐赠者骨髓移植以治疗无质性贫血后的长期存活率:一项回顾性多中心队列研究
Mary Eapen1, Joseph H Antin2, Jakub Tolar3
1Division of Haematology and Oncology, Medical College of Wisconsin, Milwaukee, WI, USA.
EClinicalMedicine
|September 18, 2024
概括
这项研究发现,50或100毫克/公斤的循环胺 (Cy) 剂量,与TBI,ATG和fludarabine相结合,对严重无性贫血中无关的捐赠者移植有效. 对50岁以上的患者需要进一步的研究.
科学领域:
- 血液学 血液学 血液学
- 免疫学 免疫学 免疫学
- 移植医学 移植医学
背景情况:
- 获得的严重无形性贫血是一种免疫介导的疾病.
- 对于与无关的捐赠者移植的最佳调节方案尚未完全确定.
- 这项研究调查了与TBI,ATG和fludarabine结合的降级环胺 (Cy) 剂量.
研究的目的:
- 为了评估与严重无形性贫血无关的捐赠者移植的长期结果.
- 为了确定最佳的降级环胺 (Cy) 剂量.
- 评估不同 Cy 剂量与 TBI,ATG 和 fludarabine 结合的安全性和有效性.
主要方法:
- 96名患有严重无形性贫血的患者接受了与HLA匹配或1位不匹配的无关的捐赠者骨髓移植.
- 患者接受了不同剂量的环胺 (Cy) (150,100,50,或0毫克/公斤),以及TBI,ATG和fludarabine.
- 移植后至少活着一年的患者的延长随访,数据收集到2023年11月.
主要成果:
- 发现50毫克/公斤和100毫克/公斤的环胺 (Cy) 剂量对第100天的移植和生存有效.
- 由于毒性,Cy剂量为150 mg/kg和0 mg/kg的累积被提前终止.
- 八年生存概率为50mg/kg Cy的85.0%和100mg/kg Cy的75.6%.
- 年龄≥50岁的患者的死亡率不管 Cy 剂量如何,都较高.
结论:
- 环胺 (Cy) 50毫克/千克或100毫克/千克与TBI,ATG和fludarabine一起是严重无塑性贫血的有效调节方案.
- 对于50岁及以上的患者,需要优化移植方法.
- 进一步的研究应侧重于针对特定患者群体的完善调节方案.
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