Non-Small Cell Lung Cancer: Liquid Biopsy Pinpoints Treatment Options

MedicalResearch.com Interview with:

Vassiliki Papadimitrakopoulou, MDProfessor of MedicineDepartment of Thoracic/Head and Neck Medical OncologyMD Anderson Cancer Center in Houston

Dr. Papadimitrakopoulou

Vassiliki Papadimitrakopoulou, MD
Professor of Medicine
Department of Thoracic/Head and Neck Medical Oncology
MD Anderson Cancer Center in Houston

MedicalResearch.com: What is the background for this study? What are the main findings?

Response: 30% of patients with newly diagnosed advanced NSCLC can be treated successfully with targeted therapies, often yielding higher response rates than chemotherapy or immune checkpoint inhibitors. Selecting first-line therapy for patients with NSCLC requires assessment of an expanding list of guideline-recommended genomic biomarkers (EGFR, ALK, ROS1, BRAF, RET, MET amplification and exon 14 skipping, and ERBB2, with NTRK newly added)

Standard-of-care (SOC) testing relies on tissue, which is limited by biopsy-related risks, specimen insufficiency, and lab processing duration, which hamper timely optimal treatment selection

–          NILE is a large, prospective, multicenter, head-to-head study of SOC tissue-based genomic testing to plasma-based comprehensive cfDNA genomic testing (Guardant360®). For the four biomarkers with FDA approved therapies, up to 34% of patients were tested by SOC tissue testing versus 95% with cfDNA testing. NILE met its primary endpoint – cfDNA performed similar to tissue in the detection of guideline-recommended biomarkers and cfDNA results were delivered significantly faster than SOC tissue testing (median 9 days vs. 15 days).Using cfDNA testing first, 87% of patients with a guideline-recommended biomarker would have been detected, compared to 67% if SOC tissue testing was first.

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