This clinical trial is focused on studying treatments for Stage IV Urothelial Cancer, a type of cancer that affects the urinary system, including the bladder, ureters, and urethra. The study involves patients whose cancer cannot be removed by surgery and who have not yet received chemotherapy. The trial will test the effectiveness of a medication called MEDI4736, also known as durvalumab, both on its own and in combination with another medication called tremelimumab. These treatments will be compared to the standard chemotherapy treatments currently used for this type of cancer.
The purpose of the study is to determine how well these new treatments work in extending the life of patients with this advanced cancer. Participants in the study will receive either the new treatment or the standard chemotherapy. Some participants may receive a combination of MEDI4736 and tremelimumab, while others will receive MEDI4736 alone. The study will also include a group of patients who will receive a placebo, which is a substance with no active medication, to compare the effects of the treatments.
Throughout the study, participants will receive regular check-ups and monitoring to assess their health and the progress of their cancer. The study aims to provide valuable information on whether these new treatments can offer better outcomes for patients with Stage IV Urothelial Cancer compared to the current standard of care. The trial is expected to continue until the end of 2025, with recruitment starting in September 2024.



Greece
Spain