349 Early safety and efficacy of a phase 1/2 open-label, multi-center trial of SNS-301 added to pembrolizumab in patients with advanced squamous cell carcinoma of the head and neck (SCCHN)

Abstract

BackgroundEfficacy of anti-PD-1 therapy is attributed to the presence of infiltrating antigen-specific CD8+ T-cells. Despite the success of anti-PD-1 therapy, many patients with SCCHN present with immune desert or immune...