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)
Mayo Clinic
National Cancer Institute (NCI)
National Cancer Institute (NCI)
NRG Oncology
Eastern Cooperative Oncology Group
Eastern Cooperative Oncology Group
University of Michigan Rogel Cancer Center
Eastern Cooperative Oncology Group