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
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Eastern Cooperative Oncology Group
Eastern Cooperative Oncology Group
UNC Lineberger Comprehensive Cancer Center
Mayo Clinic
NRG Oncology