We initiated an umbrella trial (CTONG1702), in the 8th arm to access the efficacy and safety of AZD3759, an EGFR-TKI with high capability to penetrate the blood-brain barrier, in untreated EGFR-mutant NSCLC with brain or leptomeningeal metastases. Patients received AZD3759 200 mg or 300 mg BID....This is the first report to present phase II study outcome of AZD3759 with promising efficacy and tolerable safety in the selected population with CNS metastases.