This study is patients that have been diagnosed with high-risk renal cell carcinoma. This study will compare disease free survival (DFS) in patients treated with adjuvant pembrolizumab and tivozanib versus those receiving pembrolizumab alone. Participants can expect to remain in the study for 10years. There will be a total of 14 patient enrolled locally.

This study is for patients that have been diagnosed with Merkle Cell Carcinoma. The investigational drug in this study is pembrolizumab. The purpose of this study is to compare the usual approach of post-surgery observation with or without radiation to using pembrolizumab with or without radiation after surgery. Participants can expect to be on this study for a total of 5 years.