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)
M.D. Anderson Cancer Center
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Sun Yat-sen University
George Washington University
Groupe Oncologie Radiotherapie Tete et Cou
University of Michigan Rogel Cancer Center
University of Arizona
University of Leipzig