“Up to half of patients with bladder cancer who undergo surgery will experience recurrence within a year, underscoring the need for new treatment options in the adjuvant setting,” said Dr. Marjorie Green, senior vice president and head of late-stage oncology, global clinical development, Merck Research Laboratories. “These positive results highlight the potential of KEYTRUDA to prevent recurrence after surgery for patients with localized muscle-invasive or locally advanced urothelial carcinoma.”