2024
Contribution of tumour and immune cells to PD‐L1 expression as a predictive biomarker in metastatic triple‐negative breast cancer: exploratory analysis from KEYNOTE‐119
Cortes J, Winer E, Lipatov O, Im S, Gonçalves A, Muñoz‐Couselo E, Lee K, Schmid P, Tamura K, Testa L, Witzel I, Ohtani S, Hund S, Kulangara K, Karantza V, Mejia J, Ma J, Jelinic P, Huang L, Pruitt S, Emancipator K. Contribution of tumour and immune cells to PD‐L1 expression as a predictive biomarker in metastatic triple‐negative breast cancer: exploratory analysis from KEYNOTE‐119. The Journal Of Pathology Clinical Research 2024, 10: e12371. PMID: 38627977, PMCID: PMC11021797, DOI: 10.1002/2056-4538.12371.Peer-Reviewed Original ResearchConceptsMetastatic triple-negative breast cancerPD-L1 expressionTriple-negative breast cancerPD-L1 CPSPD-L1Breast cancerTreated metastatic triple-negative breast cancerIncreased programmed death ligand 1PD-L1 IHC 22C3 pharmDxEfficacy of pembrolizumab monotherapyPD-L1 expression assessmentProgrammed death-1 blockadeExpression of PD-L1Objective response rateProgression-free survivalTumor proportion scoreDeath-ligand 1Contribution of tumorImmune cell densityReceiver operating characteristic curveArea under the receiver operating characteristic curvePredictive of responsePembrolizumab monotherapyOverall survivalUniform scoring system
2023
Association Between Biomarkers and Clinical Outcomes of Pembrolizumab Monotherapy in Patients With Metastatic Triple-Negative Breast Cancer: KEYNOTE-086 Exploratory Analysis
Loi S, Salgado R, Schmid P, Cortes J, Cescon D, Winer E, Toppmeyer D, Rugo H, De Laurentiis M, Nanda R, Iwata H, Awada A, Tan A, Sun Y, Karantza V, Wang A, Huang L, Saadatpour A, Cristescu R, Yearley J, Lunceford J, Jelinic P, Adams S. Association Between Biomarkers and Clinical Outcomes of Pembrolizumab Monotherapy in Patients With Metastatic Triple-Negative Breast Cancer: KEYNOTE-086 Exploratory Analysis. JCO Precision Oncology 2023, 7: e2200317. PMID: 37099733, DOI: 10.1200/po.22.00317.Peer-Reviewed Original ResearchConceptsMetastatic triple-negative breast cancerTriple-negative breast cancerClinical outcomesPembrolizumab monotherapyPD-L1Metastatic diseaseGEP signaturesBreast cancerStromal tumor-infiltrating lymphocytesT-cell-inflamed gene expression profileExploratory biomarker analysisMore systemic therapiesPD-L1 CPSTumor PD-L1PD-L1 statusTumor-infiltrating lymphocytesImproved clinical outcomesTumor mutational burdenSignature 3Mutational signature 3Cohort BDifferentiation 8Systemic therapyCohort ACombined cohort
2019
Pembrolizumab monotherapy for previously untreated, PD-L1-positive, metastatic triple-negative breast cancer: cohort B of the phase II KEYNOTE-086 study
Adams S, Loi S, Toppmeyer D, Cescon DW, De Laurentiis M, Nanda R, Winer EP, Mukai H, Tamura K, Armstrong A, Liu MC, Iwata H, Ryvo L, Wimberger P, Rugo HS, Tan AR, Jia L, Ding Y, Karantza V, Schmid P. Pembrolizumab monotherapy for previously untreated, PD-L1-positive, metastatic triple-negative breast cancer: cohort B of the phase II KEYNOTE-086 study. Annals Of Oncology 2019, 30: 405-411. PMID: 30475947, DOI: 10.1093/annonc/mdy518.Peer-Reviewed Original ResearchConceptsMetastatic triple-negative breast cancerPositive metastatic triple-negative breast cancerTreatment-related adverse eventsTriple-negative breast cancerDisease control rateObjective response rateFirst-line therapyProgression-free survivalAdverse eventsPD-L1Stable diseasePembrolizumab monotherapyOverall survivalCohort BControl rateBreast cancerResponse ratePD-L1 combined positive scoreCentral nervous system metastasesGrade 4 adverse eventsMedian progression-free survivalStandard first-line treatmentEnd pointGrade 3 severityManageable safety profilePembrolizumab monotherapy for previously treated metastatic triple-negative breast cancer: cohort A of the phase II KEYNOTE-086 study
Adams S, Schmid P, Rugo HS, Winer EP, Loirat D, Awada A, Cescon DW, Iwata H, Campone M, Nanda R, Hui R, Curigliano G, Toppmeyer D, O’Shaughnessy J, Loi S, Paluch-Shimon S, Tan AR, Card D, Zhao J, Karantza V, Cortés J. Pembrolizumab monotherapy for previously treated metastatic triple-negative breast cancer: cohort A of the phase II KEYNOTE-086 study. Annals Of Oncology 2019, 30: 397-404. PMID: 30475950, DOI: 10.1093/annonc/mdy517.Peer-Reviewed Original ResearchConceptsMetastatic triple-negative breast cancerTriple-negative breast cancerDisease control ratePD-L1Positive populationPembrolizumab monotherapyMetastatic diseaseControl rateBreast cancerTreatment-related adverse eventsEnd pointManageable safety profileObjective response ratePrimary end pointSecondary end pointsProgression-free survivalSubset of patientsDurable antitumor activityDuration of responseLine of treatmentEligible patientsMedian OSMedian PFSAdverse eventsMedian duration
2017
Phase 2 study of pembrolizumab (pembro) monotherapy for previously treated metastatic triple-negative breast cancer (mTNBC): KEYNOTE-086 cohort A.
Adams S, Schmid P, Rugo H, Winer E, Loirat D, Awada A, Cescon D, Iwata H, Campone M, Nanda R, Hui R, Curigliano G, Toppmeyer D, O'Shaughnessy J, Loi S, Paluch-Shimon S, Card D, Zhao J, Karantza V, Cortes J. Phase 2 study of pembrolizumab (pembro) monotherapy for previously treated metastatic triple-negative breast cancer (mTNBC): KEYNOTE-086 cohort A. Journal Of Clinical Oncology 2017, 35: 1008-1008. DOI: 10.1200/jco.2017.35.15_suppl.1008.Peer-Reviewed Original ResearchMetastatic triple-negative breast cancerTreatment-related AEsPD-L1 expressionPD-L1Manageable safetyTriple-negative breast cancerECOG PS 0Subset of ptsDisease control ratePhase 2 studyPoor prognostic factorEfficacy/safetyBest overall responseCohort A.Evaluable ptsKEYNOTE-012Median DoRMedian PFSPrior chemotherapyData cutoffPembrolizumab monotherapyDurable responsesMetastatic diseasePrior linesPS 0