Abstract
The most common driver gene mutation in patients with non-small-cell lung cancer (NSCLC) is an epidermal growth factor receptor (EGFR) mutation. With the introduction of EGFR-tyrosine kinase inhibitors, the treatment prospects and prognosis of NSCLC patients with EGFR-sensitive mutations have significantly improved. Nonetheless, therapies targeting NSCLC are still associated with a risk of primary or secondary nonclassical drug resistance mutations. In recent years, the research and methodology have led to the continuous discovery of new drugs and drug resistance targets. These explorations have also resulted in continuously discovering new drugs. Consequently, rapid advancements have been made to overcome NSCLC drug resistance. This study aimed to review the current dilemma of targeted therapy for EGFR mutation-positive NSCLC and the coping strategies for these difficulties.
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