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Targeting Classical EGFR Mutations in Lung Cancer: Twenty Years of Progress and Beyond
Yuji Uehara1, Hiroto Hatano1, Jia-Tao Zhang2
1Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo 1040045, Japan.
Abstract:
The discovery of activating epidermal growth factor receptor (EGFR) mutations transformed the management of non-small cell lung cancer and has driven two decades of therapeutic advances in precision oncology across metastatic, resectable, and unresectable locally advanced disease, including central nervous system (CNS) control. Consequently, treatment outcomes for patients with tumors harboring classical EGFR mutations have markedly improved. Despite these advances, many questions remain unanswered, and the expanding number of treatment options has created new challenges in treatment selection and sequencing. This narrative review summarizes contemporary data on the management of classical EGFR-mutant NSCLC, encompassing novel therapeutic approaches across disease stages, biomarker-informed resistance strategies, multimodality treatment integrating radiotherapy, CNS-directed management, and challenging scenarios such as small-cell transformation. We also discuss emerging fourth-generation inhibitors, nucleic-acid delivery platforms, and data-enabled personalized treatment. We highlight evolving standards of care, unresolved knowledge gaps, and research priorities for the next decade.
Insights
Activating epidermal growth factor receptor (EGFR) mutations have revolutionized non-small cell lung cancer treatment, improving outcomes. This review covers current management, novel therapies, and future research for EGFR-mutant NSCLC.
Area of Science:
- Oncology
- Genetics
- Pharmacology
Background:
- Activating epidermal growth factor receptor (EGFR) mutations significantly impact non-small cell lung cancer (NSCLC) management.
- Two decades of precision oncology advances have improved outcomes for EGFR-mutant NSCLC patients across various disease stages.
- Despite progress, treatment selection and sequencing remain challenging due to numerous therapeutic options.
Purpose of the Study:
- To provide a comprehensive review of contemporary data on managing classical EGFR-mutant NSCLC.
- To summarize novel therapeutic approaches, resistance strategies, and CNS-directed management.
- To discuss emerging treatments and future research priorities in EGFR-mutant NSCLC.
Main Methods:
- Narrative review of current literature and clinical data.
- Synthesis of information on therapeutic advances, resistance mechanisms, and treatment integration.
- Discussion of emerging technologies and personalized treatment strategies.
Main Results:
- Significant improvements in treatment outcomes for EGFR-mutant NSCLC.
- Identification of challenges in treatment selection and sequencing.
- Overview of novel therapeutic approaches and emerging resistance strategies.
Conclusions:
- EGFR mutations have transformed NSCLC management, leading to substantial therapeutic advances.
- Ongoing research is crucial for addressing knowledge gaps and optimizing treatment selection and sequencing.
- Future directions include exploring fourth-generation inhibitors, nucleic-acid delivery, and data-driven personalized medicine.
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