Does PD-L1 Combined Positive Score Have Prognostic Value in Hypopharyngeal Squamous Cell Carcinoma? A Retrospective Cohort Study

Objectives

The aim of this study was to determine whether pretreatment PD-L1 CPS is prognostically associated with survival in patients with HPSCC treated nonsurgically and without immunotherapy, and to assess overall survival (OS) in actively treated patients without distant metastases according to CPS < 1 versus CPS ≥ 1.