Association of tumor mutational burden (TMB) and clinical outcomes with pembrolizumab (pembro) versus chemotherapy (chemo) in patients with metastatic triple-negative breast cancer (mTNBC) from KEYNOTE-119.
Winer E, Lipatov O, Im S, Goncalves A, Muñoz-Couselo E, Lee K, Schmid P, Testa L, Witzel I, Ohtani S, Lunceford J, Karantza V, Mejia J, Cristescu R, Aurora-Garg D, Jelinic P, Huang L, Cortes J. Association of tumor mutational burden (TMB) and clinical outcomes with pembrolizumab (pembro) versus chemotherapy (chemo) in patients with metastatic triple-negative breast cancer (mTNBC) from KEYNOTE-119. Journal Of Clinical Oncology 2020, 38: 1013-1013. DOI: 10.1200/jco.2020.38.15_suppl.1013.Peer-Reviewed Original ResearchMetastatic triple-negative breast cancerTumor mutational burdenMut/MbClinical outcomesTriple-negative breast cancerChemo-treated patientsPrior systemic treatmentThird-line settingOverall study populationNumber of patientsTwo-sided p valuePD-L1 enrichmentReceiver operator characteristic analysisEstimates of efficacyOperator characteristic analysisP-valueFoundationOne CDxBaseline characteristicsMetastatic diseaseSystemic treatmentPotential positive associationTreatment armsClinical benefitCox regressionBreast cancer