The Role of the Liquid Biopsy in Decision-Making for Patients with Non-Small Cell Lung Cancer

Journal of Clinical Medicine
D AkhoundovaA Curioni-Fontecedro

Abstract

Liquid biopsy is a rapidly emerging tool of precision oncology enabling minimally invasive molecular diagnostics and longitudinal monitoring of treatment response. For the clinical management of advanced stage lung cancer patients, detection and quantification of circulating tumor DNA (ctDNA) is now widely adopted into clinical practice. Still, interpretation of results and validation of ctDNA-based treatment decisions remain challenging. We report here our experience implementing liquid biopsies into the clinical management of lung cancer. We discuss advantages and limitations of distinct ctDNA assay techniques and highlight our approach to the analysis of recurrent molecular alterations found in lung cancer. Moreover, we report three exemplary clinical cases illustrating the complexity of interpreting liquid biopsy results in clinical practice. These cases underscore the potential and current limitations of liquid biopsy, focusing on the difficulty of interpreting discordant findings. In our view, despite all current limitations, the analysis of ctDNA in lung cancer patients is an essential and highly versatile complementary diagnostic tool for the clinical management of lung cancer patients in the era of precision oncology.

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Methods Mentioned

BETA
Biopsy
biopsies
PCR
Assay
DNA Assay

Software Mentioned

GUARDANT360
ENSURE
FLAURA
Therascreen
cobas EGFR Mutation Test
Parsortix
CastPCR

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