Vorinostat and Bevacizumab in Treating Patients With Unresectable or Metastatic Kidney Cancer

This phase I/II trial is studying the side effects and best dose of vorinostat when given together with bevacizumab and to see how well they work in treating patients with unresectable or metastatic kidney cancer. Vorinostat may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Monoclonal antibodies, such as bevacizumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Bevacizumab may also stop the growth of kidney cancer by blocking blood flow to the tumor. Giving vorinostat together with bevacizumab may kill more tumor cells.