This is a multicenter, randomized and open Ⅱb phase study assessing the efficacy and safety of Alflutinib at doses of 80 mg orally /once daily and 160 mg orally /once daily in patients with locally advanced or metastatic Non-small Cell Lung Cancer (NSCLC) harboring acquired T790M mutation after EGFR-TKI treatment or primary T790M mutation.
This study is conducted to evaluate the efficacy and safety of Alflutinib in locally advanced or metastatic non-small cell lung cancer patients harbouring T790M mutation