Blood test tracks lung cancer resistance in Real-World study

This study looked at whether a simple blood test (liquid biopsy) can detect a specific resistance mutation called T790M in patients with advanced non-small cell lung cancer whose tumors stopped responding to initial targeted therapy. Researchers followed 70 patients in Tunisia, collecting blood samples and medical records to see how often the mutation appeared and if repeat testing improved detection. The goal was to understand how useful liquid biopsy is for monitoring resistance in everyday clinical practice.