The purpose of this study is to compare radiation over a shorter timeframe plus chemotherapy to the usual radiation and chemotherapy in patients with muscle invasive bladder cancer (MIBC). Researchers aim to determine whether the study approach prevents the patient’s bladder cancer from getting worse and helps avoid bladder removal surgery. Participants will be randomly assigned to receive the usual chemotherapy and either hypofractionation radiation therapy (more treatments given over a longer period of time) or a shorter duration radiation therapy (fewer treatments of a higher dose of radiation called stereotactic body radiation therapy-SBRT). SBRT delivers a high dose of radiation more precisely to the tumor to spare normal tissue.
NRG-GU015: The Phase III Adaptive Radiation and Chemotherapy for Muscle Invasive Bladder Cancer Trial