Background/Objectives:The 2022 European LeukemiaNet (ELN 2022) is a widely used genotypic risk classification tool for the treatment and prognostication of acute myeloid leukemia (AML) patients. Our study evaluates its effectiveness in categorizing adverse-risk AML patients on standard therapy based on their overall survival (OS).Methods: We conducted a retrospective study involving 256 AML patients.Results: Those in the ELN 2022 adverse-risk group had the shortest OS (p< 0.0001) and were predominantly characterized by myelodysplasia-related (MR) mutations, complex karyotype (CK), monosomal karyotype (MK), andTP53mutation (TP53 Mut). Subclassification and analysis of this adverse-risk group based on theTP53 Mutstatus revealed a significantly shorter OS compared to the adverseTP53wild-type (TP53 WT) counterparts (p= 0.0036). We propose refining the ELN 2022 adverse-risk group into two categories, adverseTP53 Mutand adverseTP53 WTgroups, to represent adverse- and ultra-adverse-risk groups, respectively. We used an external validation dataset to confirm our findings.Conclusions: This refinement allows for a more accurate classification of these adverse-risk patients based on their clinical outcomes.
背景/目的:2022年欧洲白血病网(ELN 2022)是目前广泛应用于急性髓系白血病(AML)患者治疗及预后评估的基因型风险分层工具。本研究旨在评估该工具对接受标准治疗的AML不良预后风险患者进行总生存期(OS)分层的有效性。方法:我们开展了一项回顾性研究,纳入256例AML患者。结果:ELN 2022标准界定的不良预后风险组患者OS最短(p<0.0001),其主要特征表现为骨髓增生异常相关(MR)基因突变、复杂核型(CK)、单体核型(MK)及TP53基因突变(TP53 Mut)。根据TP53突变状态对该不良预后风险组进行亚组分析发现,TP53突变亚组患者OS显著短于TP53野生型(TP53 WT)亚组(p=0.0036)。我们建议将ELN 2022不良预后风险组细分为TP53突变型不良预后组与TP53野生型不良预后组,分别代表不良预后风险组与超不良预后风险组,并采用外部验证数据集证实了这一发现。结论:该细化方案能依据临床结局更精准地对不良预后风险患者进行分层。