PD-L1 immunohistochemistry in clinical diagnostics: Inter-pathologist variability is as high as assay variability.
Micke P, Johansson A, Westbom-Fremer A, Backman M, Djureinovic D, Patthey A, Isaksson-Mettävainio M, Gulyas M, Brunnstrom H. PD-L1 immunohistochemistry in clinical diagnostics: Inter-pathologist variability is as high as assay variability. Journal Of Clinical Oncology 2017, 35: e20637-e20637. DOI: 10.1200/jco.2017.35.15_suppl.e20637.Peer-Reviewed Original ResearchNon-small cell lung cancerTissue microarrayPositive casesInter-rater variabilityTumor cell membrane stainingTumor cellsPD-L1 assaysPD-L1 expressionPD-L1 immunohistochemistryCell lung cancerPD-L1 scoresPositive tumor cellsTumor cell stainingSP142 cloneCheckpoint inhibitorsCell membrane stainingNSCLC patientsLung cancerTherapy responseClone 28Available drugsInter-pathologist variabilitySix-grade scaleClinical situationsSP263