Related Experiment Video
Updated: Sep 27, 2025

Author Spotlight: Advancements in Molecular Biomarker Testing for Non-Squamous Non-Small Cell Lung Cancer
Published on: September 8, 2023
EGFR exon 20 insertion mutations in advanced non-small-cell lung cancer: current status and perspectives
Jiabao Hou1, Hongle Li2, Shuxiang Ma1
1Department of Internal Medicine, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, 127 Dongming Road, Zhengzhou, 450008, China.
Abstract:
Platinum-based chemotherapy was previously the first-choice treatment for lung cancer. The discovery of epidermal growth factor receptor (EGFR) gene mutations and the development of EGFR tyrosine kinase inhibitors (TKIs) marked the beginning of the targeted therapy era for non-small-cell lung cancer (NSCLC). Thirty percent of NSCLC patients carry EGFR gene mutations. For these advanced NSCLC patients, EGFR-TKIs are currently preferred for their superior activity and survival benefits over platinum-based chemotherapy. However, therapeutic efficacy is quite different in patients with EGFR exon 20 insertion (ex20ins) mutations versus common mutations. Patients with ex20ins mutations are insensitive to EGFR-TKIs and have poor prognosis. Some drugs targeting EGFR ex20ins mutations have been approved. Here, we systematically reviewed the recent clinical research of and treatments used for EGFR ex20ins mutations, summarized the latest data on emerging therapies, and discussed future prospects and treatments.
Insights
Epidermal growth factor receptor (EGFR) exon 20 insertion mutations in non-small-cell lung cancer are resistant to standard therapies. This review covers emerging treatments and future directions for this challenging patient group.
Area of Science:
- Oncology
- Genetics
- Pharmacology
Background:
- Platinum-based chemotherapy was the standard for lung cancer.
- Epidermal growth factor receptor (EGFR) mutations ushered in targeted therapies for non-small-cell lung cancer (NSCLC).
- EGFR tyrosine kinase inhibitors (TKIs) are preferred for advanced NSCLC with common EGFR mutations due to superior efficacy.
Purpose of the Study:
- To systematically review clinical research on EGFR exon 20 insertion (ex20ins) mutations in NSCLC.
- To summarize the latest data on emerging therapies for EGFR ex20ins mutations.
- To discuss future prospects and treatments for NSCLC patients with EGFR ex20ins mutations.
Main Methods:
- Systematic review of recent clinical research.
- Summary of current treatment data.
- Discussion of emerging therapies and future directions.
Main Results:
- EGFR ex20ins mutations confer resistance to standard EGFR-TKIs.
- Patients with EGFR ex20ins mutations have a poor prognosis.
- New drugs targeting EGFR ex20ins mutations have been approved, offering new hope.
Conclusions:
- EGFR ex20ins mutations represent a distinct subset of NSCLC with unique therapeutic challenges.
- Emerging therapies show promise for improving outcomes in this patient population.
- Continued research is crucial for optimizing treatment strategies for EGFR ex20ins NSCLC.
More Related Videos
11:15Next Generation Sequencing for the Detection of Actionable Mutations in Solid and Liquid Tumors
Published on: September 20, 2016
09:38Establishment and Characterization of Three Afatinib-resistant Lung Adenocarcinoma PC-9 Cell Lines Developed with Increasing Doses of Afatinib
Published on: June 26, 2019
Related Concept Videos
Mitogens and the Cell Cycle
Targeted Cancer Therapies
There are several types of targeted therapies against...
Abnormal Proliferation
Non-LTR Retrotransposons