A Comprehensive Review of Epidermal Growth Factor Receptor Mutation Abundance in Non-Small Cell Lung Cancer Treated with Tyrosine Kinase Inhibitors.

IF 2 4区 医学 Q3 ONCOLOGY
Linmiao Zeng, Yiqun Dai, Yuting Liu, Bin Song, Hui Lin, Jianhong Xiao
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引用次数: 0

Abstract

Background: Lung cancer is a major contributor to cancer-related death worldwide. Non-small cell lung cancer (NSCLC) accounts for approximately 85% of all lung cancers. Epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) are currently viewed as the established first-line therapy for patients with advanced NSCLC with EGFR mutations.

Summary: The potential predictive value of the quantitative abundance of epidermal growth factor receptor (EGFR) mutations in the treatment of NSCLC is widely recognized and regarded as a significant indicator. The definition of mutation abundance in the EGFR gene in most current studies is mainly calculated based on the ratio of mutation to wild-type gene copy number or based on the ratio of allele number; for example, variant allele frequency is the ratio of the number of mutant alleles to the total number of alleles at a particular locus. Results of the included primary studies are as follows. (1) Significant association between EGFR mutation abundance and progression-free survival (PFS): median PFS was significantly longer in the high abundance group (11.0 months, 95% CI: 9.7-12.3 months) than in the low abundance group (5.3 months, 95% CI: 3.6-7.0 months) in the study by Liu et al. High mutation abundance (HR: 0.77, 95% CI: 0.66-0.82, p = 0.037) was an independent prognostic determinant of PFS in the study by Wang et al. Among patients receiving EGFR-TKI as first-line therapy, the median PFS was significantly longer in the high mutation abundance group than in the low mutation abundance group (12.7 months vs. 8.7 months, p = 0.002). EGFR mutation abundance ≥30% was an independent risk factor for PFS (HR: 1.64, 95% CI: 1.17-2.31). (2) Significant association between EGFR mutation abundance and overall survival (OS): the median OS in the high abundance group in the study by Liu et al. was 20.9 months (95% CI: 18.3-23.5 months), while that in the low abundance group was 13.0 months (95% CI: 10.0 months) (95% CI: 10.3-15.7 months); longer OS was independently associated with high mutation abundance (HR: 0.62, 95% CI: 0.50-0.79, p = 0.027).

Key messages: The objective of this article was to conduct a comprehensive examination and analysis of the association between the abundance of EGFR mutations in NSCLC and the effectiveness of treatment with TKIs while also considering the development of drug resistance.

全面回顾接受酪氨酸激酶抑制剂治疗的非小细胞肺癌的表皮生长因子受体突变情况。
背景:肺癌是导致全球癌症相关死亡的主要原因。非小细胞肺癌(NSCLC)约占所有肺癌的 85%。表皮生长因子受体酪氨酸激酶抑制剂(EGFR-TKIs)目前被视为治疗表皮生长因子受体突变的晚期 NSCLC 患者的公认一线疗法。摘要:表皮生长因子受体(EGFR)突变的定量丰度在 NSCLC 治疗中的潜在预测价值已得到广泛认可,并被视为一项重要指标。目前大多数研究对表皮生长因子受体基因突变丰度的定义主要是根据突变与野生型基因拷贝数的比值或等位基因数的比值来计算的;例如,变异等位基因频率(VAF)是指特定位点上突变等位基因数与等位基因总数的比值。纳入的主要研究结果:1.表皮生长因子受体(EGFR)突变丰度与 PFS 显著相关:在 Liu 等人的研究中,高丰度组(11.0 个月,95% CI:9.7-12.3 个月)的中位 PFS 明显长于低丰度组(5.3 个月,95% CI:3.6-7.0 个月)。在 Wang 等人的研究中,接受 EGFR-TKI 一线治疗的患者中,突变丰度高组的中位 PFS 明显长于突变丰度低组(12.7 个月 vs. 8.7 个月,P=0.002)。EGFR突变丰度≥30%是PFS的独立危险因素(HR:1.64,95% CI:1.17-2.31)。 2.EGFR突变丰度与OS显著相关:在 Liu 等人的研究中,高丰度组的中位 OS 为 20.9 个月(95% CI:18.3-23.5 个月),而低丰度组为 13.0 个月(95% CI:10.0 个月)。(在刘晓东的研究中,高突变丰度组的OS时间为20.9个月(95% CI:18.3-23.5个月),而低丰度组为13.0个月(95% CI:10.0个月),较长的OS时间与高突变丰度独立相关(HR:0.62,95% CI:0.50-0.79,P=0.027)。关键信息:本文旨在全面研究和分析NSCLC中表皮生长因子受体突变丰度与TKIs治疗效果之间的关系,同时考虑耐药性的产生。
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来源期刊
CiteScore
3.20
自引率
0.00%
发文量
84
期刊介绍: With the first issue in 2014, the journal ''Onkologie'' has changed its title to ''Oncology Research and Treatment''. By this change, publisher and editor set the scene for the further development of this interdisciplinary journal. The English title makes it clear that the articles are published in English – a logical step for the journal, which is listed in all relevant international databases. For excellent manuscripts, a ''Fast Track'' was introduced: The review is carried out within 2 weeks; after acceptance the papers are published online within 14 days and immediately released as ''Editor’s Choice'' to provide the authors with maximum visibility of their results. Interesting case reports are published in the section ''Novel Insights from Clinical Practice'' which clearly highlights the scientific advances which the report presents.
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