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Impacts of EGFR mutation and EGFR-TKIs on incidence of brain metastases in advanced non-squamous NSCLC

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机构: [1]Sun Yat Sen Univ, Sun Yat Sen Mem Hosp, Breast Tumor Ctr, Guangzhou, Guangdong, Peoples R China; [2]Sun Yat Sen Univ, Canc Ctr, Collaborat Innovat Ctr Canc Med, Dept Thorac Surg,State Key Lab Oncol South China, Guangzhou, Guangdong, Peoples R China; [3]Sun Yat Sen Univ, Canc Ctr, Dept Thorac Surg, 651 Dongfeng Rd East, Guangzhou 510060, Guangdong, Peoples R China
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关键词: Brain metastases EGFR Lung cancer TKI

摘要:
Objective: Brain metastases remain lethal in lung cancer patients. The impacts of epidermal growth factor receptor (EGFR) mutations and EGFR tyrosine kinase inhibitors (TKIs) on the incidence of brain metastases in patients with advanced non-squamous non-small cell lung cancer (NSCLC) are still uncertain. Patients and methods: A total of 1672 patients with advanced non-squamous NSCLC with a definitive report on EGFR mutation status between January 2005 and June 2013 were retrospectively analyzed. The impacts of EGFR mutation status and EGFR TKIs use on the incidence of brain metastases and survival were investigated. Results: Of the 1672 patients, 465 (27.8%) had an EGFR mutation, and 1207 (72.2%) did not. Four hundred and eighteen (25.0%) patients had baseline brain metastases. The cumulative incidence of brain metastases for patients in EGER + group was signifidantly higher than patients in EGFR-group (HR, 1.27; 95% CI 1.06-1.52; P = 0.008). The cumulative incidence of brain metastases was also higher for patients who received an EGFR-TKI as their first-line treatment than those who received other first-line treatment (HR, 1.36; 95% CI 1.14-1.64; P = 0.001). Patients harboring EGFR mutations had prolonged overall survival (OS) than patients with wild type EGFR (HR, 0.47; 95% CI 0.41-0.54; P < 0.001; median, 25.2 vs. 12.9 months). Conclusions: Both the EGFR mutation-positive status and the use of a TKI are associated with higher incidence of brain metastases for patients with advanced non-squamous NSCLC.

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出版当年[2017]版:
大类 | 4 区 医学
小类 | 4 区 临床神经病学 4 区 外科
最新[2023]版:
大类 | 4 区 医学
小类 | 4 区 临床神经病学 4 区 外科
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第一作者机构: [1]Sun Yat Sen Univ, Sun Yat Sen Mem Hosp, Breast Tumor Ctr, Guangzhou, Guangdong, Peoples R China;
通讯作者:
通讯机构: [2]Sun Yat Sen Univ, Canc Ctr, Collaborat Innovat Ctr Canc Med, Dept Thorac Surg,State Key Lab Oncol South China, Guangzhou, Guangdong, Peoples R China; [3]Sun Yat Sen Univ, Canc Ctr, Dept Thorac Surg, 651 Dongfeng Rd East, Guangzhou 510060, Guangdong, Peoples R China
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