修改移植后的环胺平台以提高HLA匹配的异构HCT的安全性:降低剂量加上辅助策略
Filipe R Pinto1, María Queralt Salas2, María Suárez-Lledó2
1Hematopoietic Transplantation Unit, Hematology Department, Institute of Cancer and Blood Diseases (ICAMS), Hospital Clínic de Barcelona, Barcelona, Spain.
Transplantation and cellular therapy
|October 20, 2025
概括
在全原干细胞移植后降低剂量的移植后环胺 (PTCY40) 显示出更快的恢复和更低的非复发性死亡率. 这种修改的GVHD预防方法是安全有效的,改善了患者的治疗结果.
科学领域:
- 血液学 血液学 血液学
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
背景情况:
- 移植后循环胺 (PTCY) 是有效的GVHD预防在HLA匹配的全基血型造血细胞移植 (allo-HCT).
- 标准PTCY (50 mg/kg/天) 与早期的毒性有关,这促使对修改后的疗法进行调查.
研究的目的:
- 评估使用减少剂量PTCY (PTCY40) 修改的GVHD预防的安全性和有效性.
- 为了比较PTCY40与标准PTCY50在合金HCT接受者的结果.
主要方法:
- 一个使用PTCY40,tacrolimus,G-CSF和letermovir的修改平台于2021年11月实施.
- 接受PTCY40治疗的56名患者的结果与接受PTCY50.5治疗的59名历史对照进行了比较.
主要成果:
- PTCY40显示中性粒细胞和血小板的恢复速度更快,CD4+ T细胞复制的改善,到+30日血流感染的减少.
- 没有复发的死亡率与PTCY40显著降低 (0%对8.6%,P = .032).
- 急性GVHD发病率相似,而中度/重度慢性GVHD在数值上更高,但不显著.
结论:
- 修改后的GVHD预防与降低剂量的PTCY40与改善的早期康复和减少非复发性死亡率有关.
- 这种方法支持了在alo-HCT中修改的GVHD预防策略的安全性和有效性.
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