Prospective multi-institutional evaluation of pathologist assessment of PD-L1 assays for patient selection in triple negative breast cancer
Reisenbichler ES, Han G, Bellizzi A, Bossuyt V, Brock J, Cole K, Fadare O, Hameed O, Hanley K, Harrison BT, Kuba MG, Ly A, Miller D, Podoll M, Roden AC, Singh K, Sanders MA, Wei S, Wen H, Pelekanou V, Yaghoobi V, Ahmed F, Pusztai L, Rimm DL. Prospective multi-institutional evaluation of pathologist assessment of PD-L1 assays for patient selection in triple negative breast cancer. Modern Pathology 2020, 33: 1746-1752. PMID: 32300181, PMCID: PMC8366569, DOI: 10.1038/s41379-020-0544-x.Peer-Reviewed Original ResearchConceptsTriple-negative breast cancerNegative breast cancerOverall percent agreementPD-L1Intraclass correlation coefficientBreast cancerAdvanced triple-negative breast cancerPD-L1 positive casesImmune cell stainingMultiple pathologistsPD-L1 scoringMulti-institutional evaluationLung cancer studiesAtezolizumab therapySP142 assaySP263 assaysPatient selectionSP263SP142US FoodDrug AdministrationPathologist's assessmentPositive casesReal-world settingPercent agreementThe path to a better biomarker: application of a risk management framework for the implementation of PD‐L1 and TILs as immuno‐oncology biomarkers in breast cancer clinical trials and daily practice
Gonzalez‐Ericsson P, Stovgaard ES, Sua LF, Reisenbichler E, Kos Z, Carter JM, Michiels S, Le Quesne J, Nielsen TO, Lænkholm A, Fox SB, Adam J, Bartlett JM, Rimm DL, Quinn C, Peeters D, Dieci MV, Vincent‐Salomon A, Cree I, Hida AI, Balko JM, Haynes HR, Frahm I, Acosta‐Haab G, Balancin M, Bellolio E, Yang W, Kirtani P, Sugie T, Ehinger A, Castaneda CA, Kok M, McArthur H, Siziopikou K, Badve S, Fineberg S, Gown A, Viale G, Schnitt SJ, Pruneri G, Penault‐Llorca F, Hewitt S, Thompson EA, Allison KH, Symmans WF, Bellizzi AM, Brogi E, Moore DA, Larsimont D, Dillon DA, Lazar A, Lien H, Goetz MP, Broeckx G, Bairi K, Harbeck N, Cimino‐Mathews A, Sotiriou C, Adams S, Liu S, Loibl S, Chen I, Lakhani SR, Juco JW, Denkert C, Blackley EF, Demaria S, Leon‐Ferre R, Gluz O, Zardavas D, Emancipator K, Ely S, Loi S, Salgado R, Sanders M, Group I. The path to a better biomarker: application of a risk management framework for the implementation of PD‐L1 and TILs as immuno‐oncology biomarkers in breast cancer clinical trials and daily practice. The Journal Of Pathology 2020, 250: 667-684. PMID: 32129476, DOI: 10.1002/path.5406.Peer-Reviewed Original ResearchConceptsTriple-negative breast cancerTumor-infiltrating lymphocytesPD-L1Breast cancerPatient selectionInter-reader reproducibilityEarly-stage triple-negative breast cancerPD-1/PD-L1 inhibitorsStage triple-negative breast cancerAdvanced triple-negative breast cancerPD-1/PD-L1High tumor-infiltrating lymphocytesImmune checkpoint inhibitor therapyAddition of atezolizumabPD-L1 assessmentSuboptimal patient selectionCheckpoint inhibitor therapyOptimal patient selectionPD-L1 expressionPD-L1 inhibitorsDaily practiceStandard of careImmuno-therapeutic approachesNegative breast cancerEosin-stained slides