Summary
This is a multicenter, randomized, double-blind, controlled Phase 2/3 trial of
zanzalintinib in combination with pembrolizumab versus zanzalintinib-matched placebo in
combination with pembrolizumab in subjects with PD-L1 positive recurrent or metastatic
head and neck squamous cell carcinoma (R/M HNSCC) incurable by local therapies who have
not received prior systemic therapy for recurrent or metastatic disease.