Efficacy and Safety of Alflutinib in Locally Advanced or Metastatic Non-Small Cell Lung Cancer Patients With T790M

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.