PD-L1 IHC 22C3 pharmDx is a qualitative immunohistochemical (IHC) assay using the monoclonal anti–PD-L1 clone 22C3 to detect PD-L1 protein in formalin-fixed, paraffin-embedded (FFPE) tumor tissues and is designed for use on the Dako Autostainer Link 48 (Agilent) [8]. This evidence concerns the gene CD274 and neoplasm.