RecruitingDrug trialDURvalumab in Combination With S-488210/S-488211 vAccine in Non-muscle Invasive Bladder CancErDURANCE is a two part, phase Ib/II, multi-centre study to assess the safety and activity of S-488210/S-488211 in combination with durvalumab, in patients with non-muscle invasive bladder cancer (NMIBC).