Testing the Use of Investigational Drugs Atezolizumab and/or Bevacizumab With or Without Standard Chemotherapy in the Second-Line Treatment of Advanced-Stage Head and Neck Cancers
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
M.D. Anderson Cancer Center
National Cancer Institute (NCI)
National Cancer Institute (NCI)
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
M.D. Anderson Cancer Center
Wake Forest University Health Sciences
University of Washington
M.D. Anderson Cancer Center
National Cancer Institute (NCI)