What future for circulating tumor DNA? Current data and prospects in colorectal, non-small cell lung and pancreatic cancers

Bulletin du cancer
Daniel PietraszJean-Baptiste Bachet

Abstract

Ten years after the discovery of the predictive value of KRAS status for anti-EGFR antibodies, other genes involved in oncogenesis and therapeutic responses were identified and are now systematically sought. Molecular diagnosis often requires invasive procedures, sometimes iatrogenic, and is limited by feasibility problems, quantity and quality of samples. Identifying these mutations from blood biomarkers would reduce costs and diagnostic delay. The circulating tumor DNA (ctDNA) is one of the most promising blood biomarkers. In this review, we report and discuss the latest results obtained with ctDNA in colorectal cancer, non-small cell lung cancer, and adenocarcinoma of the pancreas. If the methods highlighting appear very heterogeneous, the correlation between mutations found in tumor and those identified in the blood exceeds 95 % specificity in numerous studies. The detection sensitivity is in turn strongly related to tumor stage patients. The presence of ctDNA appears as a prognostic factor for progression-free survival and overall survival. Finally, recent studies have shown that the changing rate ctDNA during systemic treatments had a predictive value for therapeutic efficacy. These results allow to consider the use of ct...Continue Reading

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Citations

Mar 5, 2017·Thérapie·Jacqueline Lehmann-CheAlexandre Evrard
Dec 4, 2016·Bulletin du cancer·Anne-Marie RuppertMarie Wislez
Mar 31, 2018·Oncotarget·Camila Tavares Uchôa GuimarãesDanielle Queiroz Calcagno

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