EGFRdelEx19 and KRAS Exon 2 Mutation Detection in EBUS-TBNA

University Hospital Essen

Status

Completed

Conditions

Lung Adenocarcinoma Metastatic

Treatments

Genetic: LC-RT-PCR and NGS

Study type

Observational

Funder types

Other

Identifiers

NCT02975752

EGFRdelEx 19 KRAS Exon 2

Details and patient eligibility

About

First-line treatment with afatinib prolongs overall survival in patients with metastatic non-small-cell lung cancer (NSCLC) harboring EGFR exon 19 deletion mutations. Conversely, somatic KRAS mutations are negative predictors for benefit from EGFR-targeting agents. In this study we want to compare a new highly sensitive method for the detection of EGFRdelEx19 and KRAS Exon 2 with targeted-resequencing multiplex-PCR (NGS).

Full description

First-line treatment with afatinib prolongs overall survival in patients with metastatic non-small-cell lung cancer (NSCLC) harboring EGFR exon 19 deletion mutations. Conversely, somatic KRAS mutations are negative predictors for benefit from EGFR-targeting agents. Rapid availability of these biomarker results is mandatory to prevent delayed or inferior treatments.

Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is well-established for lung cancer diagnosis and staging. Next generation sequencing (NGS) via targeted resequencing allows simultaneous interrogation for multiple mutations, but has its limitations based on the amount of tumor tissue required and assay times. RT-PCR using Light-Cycler technology (LC-RTPCR) is a rapid and sensitive assay to detect somatic mutations in various tissues from NSCLC patients. The study's aim was to analyze if LC-RTPCR is feasible for rapid EGFRdelEx19 and KRAS Exon 2 mutation detection in EBUS-TBNA samples and to compare results with results obtained via standard NGS mutation analyses.

Enrollment

48 patients

Sex

All

Ages

18 to 90 years old

Volunteers

No Healthy Volunteers

Inclusion criteria