Clinical performance evaluation of the Idylla™ EGFR Mutation Test on formalin-fixed paraffin-embedded tissue of non-small cell lung cancer

Background: Detection of epidermal growth factor receptor (EGFR) mutations in exons 18–21 is recommended in all patients with advanced Non-small-cell lung carcinoma due to the demonstrated efficiency of the standard therapy with tyrosine kinase inhibitors in EGFR-mutated patients. Therefore, choosin...

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Bibliographic Details
Authors: Delgado-García, Mercedes, Weynand, Birgit, Gómez-Izquierdo, Lourdes, Hernández, María José, Blanco, Ángela María, Varela, Mar, Matias-Guiu, Xavier, Nadal, Ernest, Márquez-Lobo, Bélgica, Alarcão, Ana, de Álava, Enrique, Biscuola, Michele
Format: article
Status:Published version
Publication Date:2020
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/70715
Online Access:https://doi.org/10.1186/s12885-020-6697-7
http://hdl.handle.net/10459.1/70715
Access Level:Open access
Keyword:Non-small-cell lung carcinoma
EGFR
Mutations
Description
Summary:Background: Detection of epidermal growth factor receptor (EGFR) mutations in exons 18–21 is recommended in all patients with advanced Non-small-cell lung carcinoma due to the demonstrated efficiency of the standard therapy with tyrosine kinase inhibitors in EGFR-mutated patients. Therefore, choosing a suitable technique to test EGFR mutational status is crucial to warrant a valid result in a short turnaround time using the lowest possible amount of tissue material. The Idylla™ EGFR Mutation Test is a simple, fast and reliable method designed for the detection of EGFR mutations from formalin-fixed paraffin-embedded samples. The aim of this study was the Clinical Performace Evaluation of the Idylla™ EGFR Mutation Test on the Idylla™ System. Methods: EGFR mutational status was determined on 132 archived formalin-fixed paraffin-embedded tissue sections with Idylla™ technology. Results were compared with the results previously obtained by routine method in the reference lab (Therascreen® EGFR RGQ PCR v2, Qiagen in Molecular Pathology lab, Hospital Universitario Virgen del Rocío de Sevilla). Results: The overall agreement between results obtained with the Idylla™ EGFR Mutation Test and the Comparator test method was 95.38% (with 1-sided 95% lower limit of 91.7%) showing Positive Diagnostic Agreement of 93.22% and Negative Diagnostic Agreement of 97.18%, with a Limit Of Detection ≤5%. Conclusions: The Idylla™ EGFR Mutation Test passed its clinical validity performance characteristics for accuracy