1. A multi-center, real-life experience on liquid biopsy practice for EGFR testing in non-small cell lung cancer (NSCLC) patients
- Author
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Vincenzo Picece, Valentina Polo, Petros Giovanis, Alessandro Del Conte, Alessandro Follador, Giovanna De Maglio, C. Corvaja, Stefano Indraccolo, Elisa Scquizzato, Giorgia Nardo, F. Cortiula, Salvator Girlando, Antonello Veccia, Alessandra D'Urso, Marta Miorin, Giulio Settanni, and Giulia Pasello
- Subjects
0301 basic medicine ,Oncology ,medicine.medical_specialty ,Clinical Biochemistry ,non-small cell lung cancer (NSCLC) ,T790M ,Article ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Liquid biopsy ,Lung cancer ,lcsh:R5-920 ,liquid biopsy ,business.industry ,Disease progression ,Blood collection ,medicine.disease ,Clinical Practice ,030104 developmental biology ,Egfr mutation ,030220 oncology & carcinogenesis ,EGFR testing practice ,business ,lcsh:Medicine (General) - Abstract
Background: circulating tumor DNA (ctDNA) is a source of tumor genetic material for EGFR testing in NSCLC. Real-word data about liquid biopsy (LB) clinical practice are lacking. The aim of the study was to describe the LB practice for EGFR detection in North Eastern Italy. Methods: we conducted a multi-regional survey on ctDNA testing practices in lung cancer patients. Results: Median time from blood collection to plasma separation was 50 min (20&ndash, 120 min), median time from plasma extraction to ctDNA analysis was 24 h (30 min&ndash, 5 days) and median turnaround time was 24 h (6 h&ndash, 5 days). Four hundred and seventy five patients and 654 samples were tested. One hundred and ninety-two patients were tested at diagnosis, with 16% EGFR mutation rate. Among the 283 patients tested at disease progression, 35% were T790M+. Main differences in LB results between 2017 and 2018 were the number of LBs performed for each patient at disease progression (2.88 vs. 1.2, respectively) and the percentage of T790M+ patients (61% vs. 26%).
- Published
- 2020