Evaluating programmed death-ligand 1 (PD-L1) in head and neck squamous cell carcinoma: concordance between the 22C3 PharmDx assay and the SP263 assay on whole sections from a multicentre study.
Bruna CerbelliIlaria GirolamiAlbino EccherLeopoldo CostarelliSilvia TaccognaRenzo ScialpiMaria BenevoloTeresa LucantePiero Luigi AlòFrancesca StellaMaria Gemma PignataroGuido FaddaGiuseppe PerroneGiulia D'AmatiMaurizio MartiniPublished in: Histopathology (2021)
Two different assays (the 22C3 PharmDx assay and SP263 assay) for PD-L1 in HNSCC showed high agreement. These data suggest that these two assays are interchangeable in the selection of patients with HNSCC for immunotherapy.