Opinion statement
Isolation and analysis of circulating tumor DNA (ctDNA) have emerged as an effective and promising tool for genomic profiling in non-small cell lung cancer. Analysis of ctDNA can be particularly useful in situations where tissue biopsy is not safely obtainable due to poor physical condition or inaccessible tumor biopsy location. In addition to identifying oncogenic driver mutations which can be treated with targetable therapy in the treatment naïve advanced non-small cell lung cancer (NSCLC) setting, ctDNA is being utilized in novel ways including monitoring during an advanced NSCLC patient’s treatment course (real-time monitoring), determining mechanisms of resistance and, lastly, as a tool to identify minimal residual disease in early-stage NSCLC. Recent research demonstrates that ctDNA testing can provide a useful adjunct to tissue genotyping in NSCLC. Utilization of ctDNA into routine clinical practice for NSCLC should be strongly considered.
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The authors thank Joseph Pinto, PhD, for his cooperation in the creation of the figure.
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Katherine A. Scilla declares that she has no conflict of interest.
Christian Rolfo has received speaker’s honoraria from Guardant Health, MSD, and Novartis; has received non-financial support from OncoDNA (exosomes research collaboration) and Mylan (scientific advisor); and is currently Vice President of the International Society of Liquid Biopsy (ISLB).
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Scilla, K.A., Rolfo, C. The Role of Circulating Tumor DNA in Lung Cancer: Mutational Analysis, Diagnosis, and Surveillance Now and into the Future. Curr. Treat. Options in Oncol. 20, 61 (2019). https://doi.org/10.1007/s11864-019-0653-2
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DOI: https://doi.org/10.1007/s11864-019-0653-2