This is a Phase II, open-label, multi-centre study to determine the safety of a fixed dose of Durvalumab (MEDI4736) (1500 mg) every 4 weeks [q4w] in participants with unresectable Stage III Non-Small Cell Lung Cancer (NSCLC), who have not progressed following platinum-based sequential chemoradiation therapy (sCRT). This study will be conducted in Europe and North America.
