MEDI4736
DrugMEDI4736 (durvalumab) by intravenous infusion every two weeks. Treatment from Day 1 for a maximum of 12 months or study drug withdrawal if this occurs earlier. Patients who achieve CR, PR or SD through the end of the initial 12-month treatment period can restart treatment with MEDI4736 (durvalumab) when they eventually do progress. This retreatment period can continue for as long as the investigator considers to patient to be receiving clinical benefit.