AZD9291 Versus Placebo in Patients With Stage IB-IIIA Non-small Cell Lung Carcinoma, Following Complete Tumour Resection With or Without Adjuvant Chemotherapy.

This is a phase 3 double-blind, randomized, placebo-controlled, study to assess the efficacy and safety of AZD9291 versus placebo in patients with stage IB-IIIA non-small cell lung cancer (NSCLC) with centrally confirmed, most common sensitising EGFR mutations (Ex19Del and L858R) either alone or in combination with other EGFR mutations as confirmed by a central test, who have had complete tumour resection, with or without postoperative adjuvant chemotherapy. Adjuvant chemotherapy should have consisted of a platinum based doublet given for a maximum of 4 cycles.