Prognostic factors of autologous hematopoietic stem cell transplantation in intermediate-risk acute myeloid leukemia patients with minimal residual disease negativity
10.3760/cma.j.cn112138-20210820-00570
- VernacularTitle:自体造血干细胞移植治疗微小残留病阴性患者中危急性髓系白血病的影响因素分析
- Author:
Jiaying LIAN
1
;
Peipei YE
;
Junjie CAO
;
Dong CHEN
;
Tiantian WANG
;
Ting SI
;
Jiaojiao YUAN
;
Ying LU
Author Information
1. 宁波大学附属人民医院血液科，宁波315040
- Keywords:
Hematopoietic stem cell transplantation;
Leukemia, myeloid, acute;
Minimal residual disease;
TET2
- From:
Chinese Journal of Internal Medicine
2022;61(6):673-677
- CountryChina
- Language:Chinese
-
Abstract:
To explore prognostic factors in intermediate-risk acute myeloid leukemia (AML) patients with minimal residual disease (MRD) negativity (MRD<0.1%,MRD-)receiving autologous hematopoietic stem cell transplantation (auto-HSCT).A total of 59 intermediate-risk AML patients with MRD-were treated with auto-HSCT from January 2015 to September 2021 at Affiliated People′s Hospital of Ningbo University. The clinical data and laboratory results were collected retrospectively. Efficacy, clinical outcome and prognostic factors were analyzed. Univariate analysis was conducted by using log-rank test, the multivariate analysis by Cox proportional risk model.Among 59 patients, there were 27 males and 32 females with median age of 55 (31-69) years old.The median follow-up was 761(317-1 861)days. The 2-year overall survival (OS) rate and event-free survival (EFS) rate were 76.1%±11.4% and 73.4%±11.6% respectively.The univariate analysis showed that age older than 50 years, TET2 gene mutation (TET2 +), achieving MRD negativity over 30 days (MRD 30+) were unfavorable factors of OS ( χ2=6.20, 33.20, 7.18; P=0.013,<0.001, 0.007). TET 2+, WT1 gene mutation (WT1 +), CD34 +cells<2×10 6/kg, MRD 30+were negative factors of EFS ( χ2=17.29, 4.47, 3.94, 9.393; P<0.001, 0.035, 0.047, 0.002).Multivariate analysis showed that MRD 30+, TET2 + were independent prognostic factors of OS and EFS (OS: HR=9.251, 25.839, P=0.036, 0.001;EFS: HR=5.851, 9.199, P=0.043, 0.002). Intermediate-risk AML patients with MRD 30+or TET2 + have very poor prognosis after auto-HSCT. Alternative regimens should be investigated.
