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Journal Article
Research Support, Non-U.S. Gov't
Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitors in Advanced Squamous Cell Lung Cancer.
Clinical Lung Cancer 2016 July
BACKGROUND: The efficacy of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) in squamous cell carcinoma (SCC) of the lung remains controversial, and the role of EGFR testing in patients with SCC of the lung remains debatable.
PATIENTS AND METHODS: We retrospectively identified patients with stage IIIB or IV SCC of the lung who had undergone EGFR testing at Shanghai Chest Hospital from January 2009 to December 2013.
RESULTS: A total of 29 EGFR mutation-positive patients (22 patients had received TKI therapy and 7 had not) and 151 EGFR wild-type patients (27 patients had received TKI therapy and 124 had not) were available for an analysis of efficacy. The EGFR mutation-positive patients had significantly improved overall survival (OS) with EGFR TKI therapy compared with those who had not received EGFR TKIs (18.04 months [95% confidence interval (CI), 13.47-22.61 months] vs 13.18 months [95% CI, 5.22-21.13]; P = .015). Patients with wild-type EGFR did not have an improvement in OS with TKI therapy compared with those who had not received TKIs (14.03 months [95% CI, 11.11-16.9 months] vs. 13.63 months [95% CI, 11.91-15.36]; P = .927). The progression-free survival (PFS) for EGFR mutation-positive and EGFR wild-type patients was 3.94 months (95% CI, 2.73-5.15 months) and 1.94 months (95% CI, 0.89-2.99 months), respectively (P = .004).
CONCLUSION: EGFR TKIs could be an option for the treatment of SCC, and EGFR mutation detection can help to select a subgroup of patients who would have the best response to TKIs.
PATIENTS AND METHODS: We retrospectively identified patients with stage IIIB or IV SCC of the lung who had undergone EGFR testing at Shanghai Chest Hospital from January 2009 to December 2013.
RESULTS: A total of 29 EGFR mutation-positive patients (22 patients had received TKI therapy and 7 had not) and 151 EGFR wild-type patients (27 patients had received TKI therapy and 124 had not) were available for an analysis of efficacy. The EGFR mutation-positive patients had significantly improved overall survival (OS) with EGFR TKI therapy compared with those who had not received EGFR TKIs (18.04 months [95% confidence interval (CI), 13.47-22.61 months] vs 13.18 months [95% CI, 5.22-21.13]; P = .015). Patients with wild-type EGFR did not have an improvement in OS with TKI therapy compared with those who had not received TKIs (14.03 months [95% CI, 11.11-16.9 months] vs. 13.63 months [95% CI, 11.91-15.36]; P = .927). The progression-free survival (PFS) for EGFR mutation-positive and EGFR wild-type patients was 3.94 months (95% CI, 2.73-5.15 months) and 1.94 months (95% CI, 0.89-2.99 months), respectively (P = .004).
CONCLUSION: EGFR TKIs could be an option for the treatment of SCC, and EGFR mutation detection can help to select a subgroup of patients who would have the best response to TKIs.
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