A Study to See if Giving Fianlimab and Cemiplimab Together is Better Than Cemiplimab Alone at Treating Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma

University of California Los Angeles, Los Angeles, California, United States

Orlando Health, Orlando, Florida, United States

Emory University School of Medicine, Atlanta, Georgia, United States

St. Elizabeth Healthcare, Edgewood, Kentucky, United States

Norton Cancer Institute, Louisville, Kentucky, United States

Henry Ford Cancer Institute/Henry Ford Health System, Detroit, Michigan, United States

Oncology Hematology West P.C. dba Nebraska Cancer Specialists, Omaha, Nebraska, United States

Ohio State University, Columbus, Ohio, United States

Asplundh Cancer Pavilion, Willow Grove, Pennsylvania, United States

University of Tennessee Medical Center, Knoxville, Tennessee, United States

Vanderbilt-Ingram Cancer Center, Nashville, Tennessee, United States

Joe Arrington Cancer Research & Treatment Center, Lubbock, Texas, United States

Renovatio Clinical, The Woodlands, Texas, United States

Inova Schar Cancer Institute, Fairfax, Virginia, United States

Wide Bay Hospital and Health Service - Cancer Care Services - Bundaberg, Bundaberg, Queensland, Australia

Peter MacCallum Cancer Centre (PMCC), Melbourne, Victoria, Australia

Centre Jean Perrin, Clermont-Ferrand, Auvergne-Rhône, France

Timone Hospital - AP-HM, Marseille, Bordeaux, France

Hopital Europeen Geroges Pompidou AP-HP, Paris, Île-de-France Region, France

Istituto Europeo di Oncologia, Milan, Italy

Hospital Universitario Virgen del Rocio, Seville, Andalusia, Spain

Hospital Clinic, Barcelona, Catalonia, Spain

Hospital Universitario de Navarra, Pamplona, Navarre, Spain

Centro Oncologico de Galicia, A Coruña, Spain

Hospital Universitario La Paz, Madrid, Spain