This clinical trial is focused on studying the effects of a new treatment for various types of advanced or metastatic solid tumors, which are cancers that have spread to other parts of the body and cannot be removed by surgery. The diseases being studied include clear cell renal cell carcinoma, metastatic castration-resistant prostate cancer, urothelial carcinoma, non-clear cell renal cell carcinoma, colorectal cancer, hepatocellular cancer, non-small cell lung cancer, and head and neck squamous cell carcinoma. The study will test a combination of medications, including zanzalintinib, nivolumab, ipilimumab, and relatlimab. These medications are designed to work together to help the immune system fight cancer.
The purpose of the study is to find the best dose of these medications and to see how safe and effective they are when used together. Participants will receive the medications in different combinations, either as a single treatment or in pairs or triplets. The study will also look at how the body processes these medications and how they affect cancer cells. Some participants may receive a placebo, which is a substance with no active medication, to compare the effects of the actual treatment.
During the study, participants will receive the treatment over a period of time, and their health will be closely monitored by the research team. The study will help determine the safety and potential benefits of these treatments for people with advanced cancers. The information gathered will contribute to understanding how these medications can be used to treat different types of cancer effectively.



Austria
Belgium
France
Germany
Italy
Poland
Spain