This clinical trial is focused on studying a type of bladder cancer known as muscle-invasive bladder cancer. The study is investigating the effects of a treatment called pembrolizumab, also known by its code name MK-3475, in combination with chemotherapy drugs cisplatin and gemcitabine. Pembrolizumab is a medication that helps the immune system fight cancer cells. The purpose of the study is to compare the effectiveness of pembrolizumab with chemotherapy against a placebo with chemotherapy in patients who are eligible to receive cisplatin.
Participants in the study will be randomly assigned to one of two groups. One group will receive pembrolizumab along with chemotherapy before and after surgery, while the other group will receive a placebo with the same chemotherapy regimen. The study will involve a series of treatments and follow-ups over a period of time to monitor the progress and outcomes of the treatment. The main goal is to see if the combination of pembrolizumab and chemotherapy can improve the time patients remain free from cancer events compared to the placebo group.
Throughout the study, participants will undergo various procedures, including surgery to remove the bladder and nearby lymph nodes, known as radical cystectomy and pelvic lymph node dissection. The study will also track other important outcomes, such as overall survival and the rate of complete response to the treatment. This research aims to provide valuable insights into the potential benefits of using pembrolizumab in treating muscle-invasive bladder cancer.



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