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The impact of systemic treatment on brain metastasis in patients with non-small-cell lung cancer: A retrospective nationwide population-based cohort study

Authors
Lee, JS | Hong, JH | Sun, S | Won, HS | Kim, YH | Ahn, MS  | Kang, SY  | Lee, HW  | Ko, YH
Citation
Scientific reports, 9(1). : 18689-18689, 2019
Journal Title
Scientific reports
ISSN
2045-2322
Abstract
To compare the incidence of brain metastases of advanced non-small cell lung cancer (NSCLC) treated with systemic cytotoxic chemotherapy (CC) and targeted therapy (TT), we performed a large-scale, retrospective, nationwide, cohort study. The population data were extracted from the Health Insurance Review and Assessment Service of Korea database from January 1, 2011, to November 30, 2016. Of the 29,174 patients newly diagnosed with stage IIIB or IV NSCLC who received systemic treatment, we investigated the initial and subsequent incidence of brain metastases. Besides, among 22,458 patients without initial brain metastasis, the overall cumulative incidence of subsequent brain metastases was compared according to systemic treatment administered. In total, 1,126 (5.0%) patients subsequently developed brain metastasis. The overall cumulative incidence of brain metastasis was significantly higher in the TT group than in the CC group (1-year cumulative incidence: 8.7% vs. 3.8%; 3-year: 17.2% vs. 5.0%; P < 0.001). Younger age, female sex, and first-line TT were significant risk factors for subsequent brain metastasis. In conclusion, the overall cumulative incidence of brain metastasis was significantly higher in patients received TT as the first-line treatment than in those received CC.
DOI
10.1038/s41598-019-55150-6
PMID
31822734
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Hematology-Oncology
Ajou Authors
강, 석윤  |  안, 미선  |  이, 현우
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