PMID- 29158193 OWN - NLM STAT- MEDLINE DCOM- 20190403 LR - 20200516 IS - 1556-1380 (Electronic) IS - 1556-0864 (Print) IS - 1556-0864 (Linking) VI - 13 IP - 2 DP - 2018 Feb TI - EGFR Gene Copy Number by FISH May Predict Outcome of Necitumumab in Squamous Lung Carcinomas: Analysis from the SQUIRE Study. PG - 228-236 LID - S1556-0864(17)33006-X [pii] LID - 10.1016/j.jtho.2017.11.109 [doi] AB - INTRODUCTION: Necitumumab is a monoclonal antibody targeting EGFR. In the SQUIRE trial, the addition of necitumumab to chemotherapy for squamous cell lung cancer significantly improved overall survival (OS) (hazard ratio [HR] = 0.84); in a post hoc analysis, EGFR copy number gain determined by fluorescence in situ hybridization (FISH) showed a trend toward improved OS (HR = 0.70) and progression-free survival (PFS) (HR = 0.71) with the addition of necitumumab. We present the analysis of granular EGFR FISH data from SQUIRE to examine the potential predictive role of high polysomy and gene amplification, as both were included in the FISH-positive category. METHODS: Available specimens from SQUIRE underwent FISH analysis in a central laboratory, and each sample was evaluated by using the Colorado EGFR scoring criteria. The correlation of granular FISH parameters with clinical outcomes was assessed. RESULTS: Samples were available for 557 of 1093 patients; 208 patients (37.3%) were FISH-positive, including 167 (30.0%) with high polysomy and 41 (7.4%) with gene amplification. In patients with high polysomy, the addition of necitumumab resulted in a statistically significant increase in PFS (6.08 versus 5.13 months [p = 0.044]) and nonstatistically significant increase in OS (12.6 versus 9.5 months [p = 0.133]); among patients with gene amplification, the addition of necitumumab did not significantly improve PFS (7.4 versus 5.6 months; [p = 0.334]) but did improve OS (14.8 versus 7.6 months; [p = 0.033]). CONCLUSIONS: EGFR copy number gain by FISH might have a role as a predictive biomarker for necitumumab in squamous cell lung cancer. In our opinion, these data encourage further studies to prospectively evaluate this potential biomarker. CI - Copyright (c) 2018 International Association for the Study of Lung Cancer. Published by Elsevier Inc. All rights reserved. FAU - Genova, Carlo AU - Genova C AD - Lung Cancer Unit, San Martino Hospital, Genoa, Italy; Department of Internal Medicine, School of Medicine, University of Genoa, Genoa, Italy. FAU - Socinski, Mark A AU - Socinski MA AD - Florida Hospital Cancer Institute, Orlando, Florida. FAU - Hozak, Rebecca R AU - Hozak RR AD - Eli Lilly and Company, Indianapolis, Indiana. FAU - Mi, Gu AU - Mi G AD - Eli Lilly and Company, Indianapolis, Indiana. FAU - Kurek, Raffael AU - Kurek R AD - Lilly Deutschland GMBH, Bad Homburg vor der Hohe, Germany. FAU - Shahidi, Javad AU - Shahidi J AD - Eli Lilly and Company, Bridgewater, New Jersey. FAU - Paz-Ares, Luis AU - Paz-Ares L AD - University Hospital Virgen del Rocio, Seville, Spain. FAU - Thatcher, Nick AU - Thatcher N AD - The Christie Hospital, Manchester, United Kingdom. FAU - Rivard, Christopher J AU - Rivard CJ AD - Division of Medical Oncology, Department of Medicine, Anschutz Medical Campus, University of Colorado, Aurora, Colorado. FAU - Varella-Garcia, Marileila AU - Varella-Garcia M AD - Division of Medical Oncology, Department of Medicine, Anschutz Medical Campus, University of Colorado, Aurora, Colorado. FAU - Hirsch, Fred R AU - Hirsch FR AD - Division of Medical Oncology, Department of Medicine, Anschutz Medical Campus, University of Colorado, Aurora, Colorado. Electronic address: Fred.Hirsch@ucdenver.edu. LA - eng GR - P30 CA046934/CA/NCI NIH HHS/United States PT - Journal Article DEP - 20171120 PL - United States TA - J Thorac Oncol JT - Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer JID - 101274235 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Antineoplastic Agents, Immunological) RN - 2BT4C47RUI (necitumumab) SB - IM MH - Antibodies, Monoclonal/pharmacology/*therapeutic use MH - Antibodies, Monoclonal, Humanized MH - Antineoplastic Agents, Immunological/pharmacology/*therapeutic use MH - Carcinoma, Squamous Cell/*drug therapy/*genetics/pathology MH - Female MH - Gene Dosage/*genetics MH - Humans MH - In Situ Hybridization, Fluorescence/*methods MH - Lung Neoplasms/*drug therapy/*genetics/pathology MH - Male MH - Treatment Outcome PMC - PMC6233716 MID - NIHMS1504198 OTO - NOTNLM OT - EGFR OT - FISH OT - Non-small cell lung cancer OT - biomarker OT - necitumumab EDAT- 2017/11/22 06:00 MHDA- 2019/04/04 06:00 PMCR- 2019/02/01 CRDT- 2017/11/22 06:00 PHST- 2017/08/12 00:00 [received] PHST- 2017/10/09 00:00 [revised] PHST- 2017/11/08 00:00 [accepted] PHST- 2017/11/22 06:00 [pubmed] PHST- 2019/04/04 06:00 [medline] PHST- 2017/11/22 06:00 [entrez] PHST- 2019/02/01 00:00 [pmc-release] AID - S1556-0864(17)33006-X [pii] AID - 10.1016/j.jtho.2017.11.109 [doi] PST - ppublish SO - J Thorac Oncol. 2018 Feb;13(2):228-236. doi: 10.1016/j.jtho.2017.11.109. Epub 2017 Nov 20.