Cited by 324Lung Cancer Treatments and MutationsHER2/EGFR in Cancer ResearchLung Cancer Diagnosis and Treatment

Rare EGFR exon 18 and exon 20 mutations in non-small-cell lung cancer on 10 117 patients: a multicentre observational study by the French ERMETIC-IFCT network

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Beau-Faller, M., Prim, N., Ruppert, A.-M., Nanni-Metéllus, I., Lacave, R., Lacroix, L., Escande, F., Lizard, S. +19 more·2014·Annals of Oncology

Abstract

Background There is scarce data available about epidermal growth factor receptor (EGFR) mutations other than common exon 19 deletions and exon 21 (L858R) mutations.Patients and methods EGFR exon 18 and/or exon 20 mutations were collected from 10 117 non-small-cell lung cancer (NSCLC) samples analysed at 15 French National Cancer Institute (INCa)-platforms of the ERMETIC-IFCT network.Results Between 2008 and 2011, 1047 (10%) samples were EGFR-mutated, 102 (10%) with rare mutations: 41 (4%) in exon 18, 49 (5%) in exon 20, and 12 (1%) with other EGFR mutations. Exon 20 mutations were related to never-smoker status, when compared with exon 18 mutations (P < 0.001). Median overall survival (OS) of metastatic disease was 21 months [95% confidence interval (CI) 12-24], worse in smokers than in non-smoker patients with exon 20 mutations (12 versus 21 months; hazard ratio [HR] for death 0.27, 95% CI 0.08-0.87, P = 0.03). Under EGFR-tyrosine kinase inhibitors (TKIs), median OS was 14 months (95% CI 6-21); disease control rate was better for complex mutations (6 of 7, 86%) than for single mutations (16 of 40, 40%) (P = 0.03).Conclusions Rare EGFR-mutated NSCLCs are heterogeneous, with resistance of distal exon 20 insertions and better sensitivity of exon 18 or complex mutations to EGFR-TKIs, probably requiring individual assessment.

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Authors
Beau-Faller, M., Prim, N., Ruppert, A.-M., Nanni-Metéllus, I., Lacave, R., Lacroix, L., Escande, F., Lizard, S., Pretet, J.-L., Rouquette, I., de Crémoux, P., Solassol, J., de Fraipont, F., Bièche, I., Cayre, A., Favre-Guillevin, E., Tomasini, P., Wislez, M., Besse, B., Legrain, M., Voegeli, A.-C., Baudrin, L., Morin, F., Zalcman, G., Quoix, E., Blons, H., & Cadranel, J.
Affiliations
  • Hôpitaux Universitaires de Strasbourg (FR)
  • Assistance Publique – Hôpitaux de Paris (FR)
  • Hôpital Tenon (FR)
  • Institut Gustave Roussy (FR)
  • Centre Hospitalier Universitaire de Lille (FR)
  • Centre Georges François Leclerc (FR)
  • Centre Hospitalier Universitaire de Toulouse (FR)
  • Centre Hospitalier Universitaire de Montpellier (FR)
  • Hôpital René Huguenin (FR)
  • Centre Hospitalier Universitaire de Clermont-Ferrand (FR)
  • Hôpital Européen Georges-Pompidou (FR)
  • Assistance Publique Hôpitaux de Marseille (FR)
  • Intergroupe Francophone de Cancérologie Thoracique (FR)
Venue
Annals of Oncology
Publisher
Elsevier BV
Published
2014-01
Volume
25
Issue
1
Pages
126-131
ISSN
0923-7534 (ISSN-L)
OpenAlex
W2113521542
Cited by
324
References
38
Citations by year
2026: 10 · 2025: 22 · 2024: 14 · 2023: 22 · 2022: 39 · 2021: 29 · 2020: 43 · 2019: 29 · 2018: 26 · 2017: 29 · 2016: 20 · 2015: 29 · 2014: 10 · 2013: 1 · 2012: 1
FWCI
16.29
Type
journal article
Language
en
Open access
Locations
  • Annals of Oncology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • French
  • National Cancer Institute
  • Ligue Nationale Contre le Cancer
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Health Sciences › Medicine › Oncology › HER2/EGFR in Cancer Research
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Diagnosis and Treatment
Keywords
EGFR mutation, exon 18 mutations, exon 20 insertion, non-small cell lung cancer, uncommon EGFR mutations, EGFR tyrosine kinase inhibitors, smoking status, never smokers, overall survival, disease control rate
MeSH terms
Adenocarcinoma, Adult, Aged, Aged, 80 and over, Antineoplastic Agents, Carcinoma, Non-Small-Cell Lung, Exons, Female, Gene Frequency, Humans, Lung Neoplasms, Male, Middle Aged, Proportional Hazards Models, Disease-Free Survival, Drug Resistance, Neoplasm, Protein Kinase Inhibitors, Young Adult, Genetic Association Studies, ErbB Receptors

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