The FDA recently approved new doses of durvalumab (Imfinzi®, AstraZeneca) for the treatment of patients with previously treated advanced urothelial carcinoma and unresectable stage III non-small cell lung cancer. "Durvalumab, a selective, high-affinity, engineered human IgG1 mAb that blocks PD-L1 binding to PD-1 and CD80, is approved in the US, Japan, and several other countries for the treatment of patients with unresectable, stage III NSCLC whose disease has not progressed following conc...