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ABSTRACT: Purpose
We evaluated the clinical utility of excision repair cross-complementation group 1 (ERCC1) expression as a predictive biomarker for platinum-based chemotherapy in advanced non-small cell lung cancer (NSCLC).Materials and methods
Eligible patients were randomly assigned to the GP (gemcitabine 1,250 mg/m2 on days 1 and 8, and cisplatin 75 mg/m2 on day 1 every 3 weeks) or IP (irinotecan 65 mg/m2 and cisplatin 30 mg/m2 on days 1 and 8 every 3 weeks) arm. The primary goal of this study was to compare the response rate (RR) of the GP and IP arms according to the ERCC1 expression level.Results
A total of 279 patients were randomly assigned to the GP (n=139) and IP (n=140) arms, among which 63% were ERCC1-positive and 268 patients were assessable for the RR. The GP and IP arms did not differ significantly with respect to the RR (29.8% vs. 27.0%, respectively; p=0.082), median progression-free survival (PFS; 4.5 months vs. 3.9 months, respectively; p=0.117), and overall survival (OS; 16.5 months vs. 16.7 months, respectively; p=0.313). When comparing the efficacy between the ERCC1-positive and ERCC1-negative groups, there was no significant difference in the RR (GP, 28.2% vs. 32.6%, respectively, p=0.509; IP, 30.2% vs. 21.6%, respectively, p=0.536), median PFS (GP, 4.6 months vs. 5.0 months, respectively, p=0.506; IP, 3.9 months vs. 3.7 months, respectively, p=0.748), or median OS (GP, 18.6 months vs. 11.9 months, respectively, p=0.070; IP, 17.5 months vs. 14.0 months, respectively, p=0.821).Conclusion
Immunohistochemical analysis of the ERCC1 expression level did not differentiate the efficacy of platinum-based chemotherapy in advanced NSCLC.
SUBMITTER: Han JY
PROVIDER: S-EPMC5512356 | biostudies-literature | 2017 Jul
REPOSITORIES: biostudies-literature
Han Ji-Youn JY Lee Geon Kook GK Lim Kun Young KY Lee Young Ju YJ Nam Byung Ho BH Lee Jin Soo JS
Cancer research and treatment 20161011 3
<h4>Purpose</h4>We evaluated the clinical utility of excision repair cross-complementation group 1 (ERCC1) expression as a predictive biomarker for platinum-based chemotherapy in advanced non-small cell lung cancer (NSCLC).<h4>Materials and methods</h4>Eligible patients were randomly assigned to the GP (gemcitabine 1,250 mg/m<sup>2</sup> on days 1 and 8, and cisplatin 75 mg/m<sup>2</sup> on day 1 every 3 weeks) or IP (irinotecan 65 mg/m<sup>2</sup> and cisplatin 30 mg/m<sup>2</sup> on days 1 and ...[more]