Novel blood test detects lung cancer traces long before scans

Despite advances in early-stage lung cancer treatment, a significant number of patients experience disease recurrence after surgery or initial therapy. A study has now demonstrated that a blood test (liquid biopsy) can reliably detect lingering lung cancer traces even in the earliest clinical stages, long before a tumor is large enough to show up on a scan.

Non–small-cell lung cancer (NSCLC) is the most common type of lung cancer and remains the major cause of cancer-related death. Small tumors in patients with early-stage NSCLC (I to II) are usually surgically removed, and survival rates are reasonably high. However, even in stage I, disease recurrence rates range between 5% and 19%, and imaging follow-up remains standard of care.

“As oncology shifts toward personalized risk-adapted care, liquid biopsies are emerging as a critical tool to bridge the gap between treatment completion and clinical recurrence,” explains lead investigator Matija Snuderl, M.D., Department of Pathology, NYU Langone Health and Grossman School of Medicine, and Laura and Isaac Perlmutter Cancer Center, New York, New York.

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