This clinical trial is focused on studying advanced urothelial cancer, which is a type of cancer that affects the bladder and other parts of the urinary system. The study is investigating the effects of a treatment called avelumab, which is a medication given through an intravenous infusion. Avelumab is a type of protein that helps the immune system fight cancer cells. In this study, avelumab is used as a maintenance treatment after patients receive a specific type of chemotherapy known as platinum-based chemotherapy.
The purpose of the study is to compare the outcomes of patients who receive either three or six cycles of platinum-based chemotherapy before starting maintenance treatment with avelumab. The study aims to understand how the number of chemotherapy cycles affects patients’ quality of life and overall health. Participants will be randomly assigned to receive either three or six cycles of chemotherapy, followed by avelumab. Some participants may receive a placebo instead of avelumab to help researchers understand the true effects of the medication.
Throughout the study, participants will be monitored for changes in their health and quality of life. This will include regular assessments to track any side effects and the overall response to the treatment. The study will continue for a period of time to gather enough information to determine the best approach for treating advanced urothelial cancer with avelumab. The findings from this study could help improve treatment strategies for patients with this type of cancer in the future.



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