Testing What Happens When an Immunotherapy Drug (Pembrolizumab) is Given by Itself Compared to the Usual Treatment of Chemotherapy With Radiation After Surgery for Recurrent Head and Neck Squamous Cell Carcinoma
National Cancer Institute (NCI)
National Cancer Institute (NCI)
Massachusetts General Hospital
University of Cincinnati
Case Comprehensive Cancer Center
NRG Oncology
University College, London
University Hospital Heidelberg
Guangzhou Concord Cancer Center
Emory University
Emory University
Emory University
St. Jude Children's Research Hospital
St. Jude Children's Research Hospital