摘要: Osimertinib (Tagrisso™, AZD9291) is an oral, third-generation epidermal growth factor receptor tyrosine kinase inhibitor (EGFR TKI) that being developed by AstraZeneca for the treatment of advanced non-small cell lung cancer (NSCLC). has been designed to target EGFR T790M mutation often present in NSCLC patients with acquired TKI resistance, while sparing wild-type EGFR. In November 2015, tablet formulation osimertinib was granted accelerated approval USA metastatic mutation-positive (as detected FDA-approved test) who have progressed on or after therapy. also assessment status this indication EU, and phase III development first- second-line adjuvant several countries. Phase I trials solid tumours are conducted. This article summarizes milestones leading first NSCLC.