Clinical observation of allogeneic hematopoietic stem cell transplantation for treating five cases of classic paroxysmal nocturnal hemoglobinuria
10.3760/cma.cn121090-20240612-00221
- VernacularTitle:异基因造血干细胞移植治疗经典型阵发性睡眠性血红蛋白尿症5例临床观察
- Author:
Xiaoli ZHAO
1
;
Lining ZHANG
;
Xiaoyu ZHANG
;
Mengze HAO
;
Shulian CHEN
;
Jialin WEI
;
Yi HE
;
Mingzhe HAN
;
Erlie JIANG
Author Information
1. 中国医学科学院血液病医院（中国医学科学院血液学研究所），实验血液学国家重点实验室，国家血液系统疾病临床医学研究中心，细胞生态海河实验室，天津 300020
- Publication Type:Journal Article
- From:
Chinese Journal of Hematology
2024;45(12):1125-1128
- CountryChina
- Language:Chinese
-
Abstract:
This study enrolled five patients with classic paroxysmal nocturnal hemoglobinuria (cPNH) who underwent allogeneic hematopoietic stem cell transplantation in our hospital from 2019 to 2023. All five patients were male, with a median age of 26 (range: 26-46) years. The median time from diagnosis to allo-HSCT was 5.5 (range: 3.6-18.0) years. The median PNH granulocyte clone size was 96.3% (ranged 90.0%-99.7%), and the median lactate dehydrogenase (LDH) level was 2 224 IU/L (8896-fold of the upper limit of normal). All patients were detected to have bone marrow hyperplasia by trephine biopsy. The stem cell source came from four haploidentical donors and one HLA-identical sibling donor. Among the five patients, three underwent myeloablative conditioning (MAC) and two underwent reduced-intensity conditioning (RIC) treatment. None of the patients experienced primary implantation failure. The neutrophil implantation time was 15 (range: 13-21) days, and the platelet implantation time was 24 (range: 13-60) days. The three patients developed grade II acute graft-versus-host disease (aGVHD). No patients developed grade Ⅲ/Ⅳ aGVHD. The two patients developed localized chronic GVHD (cGVHD), and no patients developed extensive cGVHD. PNH clones turned negative in all patients after 2 (range: 1-3) months of transplantation. At a median follow-up of 16 (range: 6-34) months, one patient died of relapse and infection, and the remaining four patients survived, of which two patients had discontinued all drugs.
