Cited by 843Lung Cancer Treatments and MutationsCancer Immunotherapy and BiomarkersLung Cancer Diagnosis and Treatment

Checkpoint inhibitors in metastatic EGFR-mutated non–small cell lung cancer-a meta-analysis

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Lee, Chee Khoon, Man, Johnathan, Lord, Sally, Links, Matthew, Gebski, Val, Mok, Tony, Yang, James Chih-Hsin·2017·Journal of Thoracic Oncology

Abstract

Introduction We performed a meta-analysis to assess the role of immune checkpoint inhibitors as second-line therapy in EGFR-mutant advanced NSCLC.Methods Randomized trials comparing immune checkpoint inhibitors against chemotherapy were identified. We retrieved the hazard ratio (HR) and 95% confidence interval (CI) for overall survival (OS) of the intention-to-treat population and EGFR mutation-defined subgroups. We used the fixed-effects inverse variance-weighted method to pool estimates of treatment efficacy. Statistical tests were two sided.Results In the three included studies that compared immune checkpoint inhibitors (nivolumab [n = 292], pembrolizumab [n = 691], and atezolizumab [n =144]) against docetaxel (n = 776), immune checkpoint inhibitors significantly prolonged OS over that with docetaxel overall (n = 1903, HR = 0.68, 95% CI: 0.61-0.77, p < 0.0001) and in the EGFR wild-type subgroup (n = 1362, HR = 0.66, 95% CI: 0.58-0.76, p < 0.0001) but not in the EGFR-mutant subgroup (n = 186, HR = 1.05, 95% CI: 0.70-1.55, p < 0.81; treatment-mutation interaction p = 0.03).Conclusion In EGFR-mutant advanced NSCLC, immune checkpoint inhibitors do not improve OS over that with docetaxel. Mechanisms of acquired resistance to first-line tyrosine kinase inhibitor therapy should be elucidated to guide selection of second-line treatment for these patients.

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Authors
Lee, C. K., Man, J., Lord, S., Links, M., Gebski, V., Mok, T., & Yang, J. C.-H.
Affiliations
  • The University of Sydney (AU)
  • St George Hospital (AU)
  • Chinese University of Hong Kong (HK)
  • National Taiwan University (TW)
Corresponding author
Lee, Chee Khoon
Venue
Journal of Thoracic Oncology
Publisher
Elsevier BV
Published
2017-02
Volume
12
Issue
2
Pages
403-407
ISSN
1556-0864 (ISSN-L)
OpenAlex
W2538232731
Cited by
839
References
15
Citations by year
2026: 47 · 2025: 61 · 2024: 68 · 2023: 84 · 2022: 93 · 2021: 98 · 2020: 100 · 2019: 100 · 2018: 123 · 2017: 62 · 2016: 1 · 2015: 1
FWCI
85.21
Type
journal article
Language
en
Open access
Locations
  • Journal of Thoracic Oncology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Diagnosis and Treatment
Keywords
immune checkpoint inhibitors, EGFR-mutant non-small cell lung cancer, second-line therapy, nivolumab, pembrolizumab, atezolizumab, docetaxel, overall survival, advanced non-small cell lung cancer
MeSH terms
Antineoplastic Agents, Carcinoma, Non-Small-Cell Lung, Humans, Immunotherapy, Lung Neoplasms, Mutation, Prognosis, Randomized Controlled Trials as Topic, Cell Cycle Checkpoints, ErbB Receptors

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