Cited by 468Lung Cancer Treatments and MutationsCancer Genomics and DiagnosticsLung Cancer Diagnosis and Treatment

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Detection and Dynamic Changes of EGFR Mutations from Circulating Tumor DNA as a Predictor of Survival Outcomes in NSCLC Patients Treated with First-line Intercalated Erlotinib and Chemotherapy

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Published version of a preprint

Abstract

Purpose: Blood-based circulating-free (cf) tumor DNA may be an alternative to tissue-based EGFR mutation testing in NSCLC. This exploratory analysis compares matched tumor and blood samples from the FASTACT-2 study. Experimental Design: Patients were randomized to receive six cycles of gemcitabine/platinum plus sequential erlotinib or placebo. EGFR mutation testing was performed using the cobas tissue test and the cobas blood test (in development). Blood samples at baseline, cycle 3, and progression were assessed for blood test detection rate, sensitivity, and specificity; concordance with matched tumor analysis (n = 238), and correlation with progression-free survival (PFS) and overall survival (OS). Results: Concordance between tissue and blood tests was 88%, with blood test sensitivity of 75% and a specificity of 96%. Median PFS was 13.1 versus 6.0 months for erlotinib and placebo, respectively, for those with baseline EGFR mut+ cfDNA [HR, 0.22; 95% confidence intervals (CI), 0.14–0.33, P < 0.0001] and 6.2 versus 6.1 months, respectively, for the EGFR mut− cfDNA subgroup (HR, 0.83; 95% CI, 0.65–1.04, P = 0.1076). For patients with EGFR mut+ cfDNA at baseline, median PFS was 7.2 versus 12.0 months for cycle 3 EGFR mut+ cfDNA versus cycle 3 EGFR mut− patients, respectively (HR, 0.32; 95% CI, 0.21–0.48, P < 0.0001); median OS by cycle 3 status was 18.2 and 31.9 months, respectively (HR, 0.51; 95% CI, 0.31–0.84, P = 0.0066). Conclusions: Blood-based EGFR mutation analysis is relatively sensitive and highly specific. Dynamic changes in cfDNA EGFR mutation status relative to baseline may predict clinical outcomes. Clin Cancer Res; 21(14); 3196–203. ©2015 AACR.

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Crossref · 10.1158/1078-0432.ccr-14-2594

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Research works printed but not linked: 19

  1. Zhou, 2011, Erlotinib versus chemotherapy as first-line treatment for patients with advanced EGFR mutation-positive non-small-cell lung cancer (OPTIMAL, CTONG-0802): a multicentre, open-label, randomised, phase 3 study, Lancet Oncol, 12, 735, 10.1016/S1470-2045(11)70184-X · DOI · Paper page
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Metadata

Authors
Mok, T., Wu, Y.-L., Lee, J. S., Yu, C.-J., Sriuranpong, V., Sandoval-Tan, J., Ladrera, G., Thongprasert, S., Srimuninnimit, V., Liao, M., Zhu, Y., Zhou, C., Fuerte, F., Margono, B., Wen, W., Tsai, J., Truman, M., Klughammer, B., Shames, D. S., & Wu, L.
Affiliations
  • Chinese University of Hong Kong (HK)
  • Guangdong General Hospital (CN)
  • National Cancer Center (KR)
  • National Taiwan University Hospital (TW)
  • Chulalongkorn University (TH)
  • Philippine General Hospital (PH)
  • Lung Center of the Philippines (PH)
  • Chiang Mai University (TH)
  • Siriraj Hospital (TH)
  • Shanghai Chest Hospital (CN)
  • Beijing Chest Hospital (CN)
  • Tongji University (CN)
  • 13Rizal Medical Center, Pasig City, Philippines.
  • Rumah Sakit Dokter Soetomo (ID)
  • 15Roche Molecular Systems, Inc., Pleasanton, California.
  • 16Roche Products Ltd, Dee Why, Australia.
  • F. Hoffmann-La Roche AG (CH)
  • Genentech (US)
Venue
Clinical Cancer Research
Published
2015-07-14
Volume
21
Issue
14
Pages
3196-3203
ISSN
  • 1078-0432 (ISSN-L)
  • 1557-3265
OpenAlex
W2070059866
Cited by
468
References
8
Citations by year
2026: 4 · 2025: 10 · 2024: 28 · 2023: 23 · 2022: 42 · 2021: 49 · 2020: 46 · 2019: 64 · 2018: 66 · 2017: 72 · 2016: 49 · 2015: 15
FWCI
53.26
Type
journal article
Language
en
Open access
Locations
  • Clinical Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • Greater South Information System
Funders
F. Hoffmann-La Roche
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Diagnosis and Treatment
Keywords
EGFR mutation, circulating tumor DNA, non-small cell lung cancer, erlotinib, first-line therapy, liquid biopsy, progression-free survival, overall survival, treatment response prediction
MeSH terms
Erlotinib Hydrochloride, Gemcitabine, Aged, Antineoplastic Combined Chemotherapy Protocols, Carcinoma, Non-Small-Cell Lung, Deoxycytidine, DNA Mutational Analysis, DNA, Neoplasm, Double-Blind Method, Female, Humans, Intercalating Agents, Lung Neoplasms, Male, Middle Aged, Mutation, Treatment Outcome, Platinum Compounds, Disease-Free Survival, Genes, erbB-1, Kaplan-Meier Estimate

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