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Epidermal Growth Factor Receptor Mutation Status and Treatment Outcome for R0-Resected Patients with Stage 3 Non-small Cell Lung Cancer

  • Thoracic Oncology
  • Published:
Annals of Surgical Oncology Aims and scope Submit manuscript

Abstract

Background

This study aimed to investigate the association of epidermal growth factor receptor (EGFR) mutation status with treatment outcome for patients with stage 3 non-small cell lung cancer (NSCLC) who had undergone a complete (R0) resection.

Methods

The study identified 3445 NSCLC patients tested for EGFR mutations between September 2001 and December 2011 at the Sun Yat-Sen University Cancer Center. Of these patients, 224 were stage 3 patients who had undergone R0 resections.

Results

These 224 R0-resected, pathologic stage 3A and 3B patients included 150 patients with wild-type EGFR and 74 patients with EGFR mutations. During a median follow-up period of 42 months (range, 4–133 months), pathologic stage was shown to be the only prognostic factor. The 3-year overall survival (OS) rates did not differ significantly from the OS rates for the wild-type and mutant EGFR groups (62.0 vs 67.2 %; p = 0.789). Multivariate analyses indicated that the patients in the mutant EGFR group with EGFR exon 19 mutations had a better OS rate (73.0 vs 61.1 %; p = 0.026).

Conclusions

Cancer stage remained the significant prognostic factor in R0-resected stage 3 NSCLC patients. The presence of an EGFR mutation is more likely to be a predictive marker for the response to treatment with tyrosine kinase inhibitors. In the EGFR mutant group, the patients with an exon 19 mutation had better 3-year OS rates. These findings might be considered in future study designs.

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Disclosure

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Correspondence to Hui Liu MD.

Additional information

Song Ran Liu, Bo Qiu and Hong Yang have contributed equally to this article.

Lan Feng Lin is the co-corresponding author of this article.

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Liu, S.R., Qiu, B., Yang, H. et al. Epidermal Growth Factor Receptor Mutation Status and Treatment Outcome for R0-Resected Patients with Stage 3 Non-small Cell Lung Cancer. Ann Surg Oncol 23, 2115–2122 (2016). https://doi.org/10.1245/s10434-015-5076-0

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  • DOI: https://doi.org/10.1245/s10434-015-5076-0

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