Lung cancer has become one of the most dangerous cancers to human health and the mortality rate is the highest among all the causes of cancer death. Non-small cell lung cancer (NSCLC) accounts for about 80%-85% of lung cancer. Chemotherapy is the main treatment for advanced NSCLC, but the 5-year survival rate is low. Epidermal growth factor receptor (EGFR) mutations are the most common driver mutations in lung cancer, but EGFR exon 20 insertions (EGFR ex20ins) mutation belongs to one of the rare mutations, accounting for about 4%-10% of overall EGFR mutations, thus around 1.8% of advanced NSCLC patients. In recent years, targeted therapies represented by EGFR tyrosine kinase inhibitors (TKIs) have become an important treatment option for patients with advanced NSCLC, however, NSCLC patients with EGFR ex20ins mutation are not sensitive to most of EGFR-TKIs treatments. Currently, some of the targeted drugs for EGFR ex20ins mutation have achieved significant efficacy, while some of them are still under clinical investigation. In this article, we will describe various treatment methods for EGFR ex20ins mutation and their efficacy. .
【中文题目：EGFR外显子20插入突变型NSCLC治疗的 研究进展】 【中文摘要：肺癌已成为对人类健康威胁最大的肿瘤之一，死亡率位居肿瘤死因之首，非小细胞肺癌（non-small cell lung cancer, NSCLC）占肺癌的80%-85%，晚期NSCLC的治疗以化疗为主，但5年的生存率较低。表皮生长因子受体（epidermal growth factor receptor, EGFR）基因突变是肺癌中最常见的驱动基因变异，而EGFR外显子20插入（EGFR exon 20 insertions, EGFR ex20ins）突变型属于其中一种罕见突变，在所有EGFR突变中占4%-10%，在NSCLC中约占1.8%。近年来，以EGFR酪氨酸激酶抑制剂（EGFR-tyrosine kinase inhibitors, EGFR-TKIs）为代表的靶向治疗已经成为晚期NSCLC患者一个重要的治疗选择，然而EGFR ex20ins突变型的NSCLC患者对大部分EGFR-TKIs治疗并不敏感。目前，部分针对EGFR ex20ins突变的靶向药物取得了明显疗效，部分药物仍在临床研究中。本文将针对EGFR ex20ins突变的各种治疗方法及其疗效进行阐述。 】 【中文关键词：肺肿瘤；EGFR外显子20插入突变；EGFR突变；靶向治疗】.
Keywords: EGFR exon 20ins mutation; EGFR mutation; Lung neoplasms; Targeted therapy.