EGFR-TKIs have changed the landscape of metastatic NSCLC treatment with a significant improvement in survival of EGFRm patients compared to wild-type EGFR. Even with the newer third generation EGFR TKIs like, Osimertinib, which has proven efficacy against the resistance mutation of EGFRm T790M, progression eventually occurs. There are limited treatment options for patients with metastatic EGFRm NSCLC with other acquired resistance.
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