RecruitingPhase 2Drug trialA Study of Sacituzumab Govitecan in Combination With Cetuximab in People With Head and Neck Squamous Cell Cancer (HNSCC)The purpose of this study to find out whether sacituzumab govitecan in combination with cetuximab is an effective and safe treatment approach for people with recurrent and/or metastatic head and neck squamous cell cancer (HNSCC).