RecruitingPhase 1Drug trialDose Finding Study of Zanzalintinib With Pembrolizumab and Cetuximab in Head and Neck SCCThis Phase I clinical trial evaluates the safety, tolerability, and optimal dosing of Zanzalintinib in combination with Pembrolizumab and Cetuximab in patients with recurrent and/or metastatic squamous cell carcinoma of the head and neck (R/M HNSCC). The study aims to establish the maximally tolerated dose (MTD) and recommended Phase II dose (RP2D) while also exploring efficacy outcomes, including progression-free survival (PFS) and overall survival (OS).