Clinical Significance of Circulating Tumor Cells in Hormone Receptor–positive Metastatic Breast Cancer Patients who Received Letrozole with or Without Bevacizumab
Magbanua MJM, Savenkov O, Asmus EJ, Ballman KV, Scott JH, Park JW, Dickler M, Partridge A, Carey LA, Winer EP, Rugo HS. Clinical Significance of Circulating Tumor Cells in Hormone Receptor–positive Metastatic Breast Cancer Patients who Received Letrozole with or Without Bevacizumab. Clinical Cancer Research 2020, 26: 4911-4920. PMID: 32586939, PMCID: PMC7501177, DOI: 10.1158/1078-0432.ccr-20-1329.Peer-Reviewed Original ResearchConceptsProgression-free survivalCTC-positive patientsHormone receptor-positive metastatic breast cancer patientsMetastatic breast cancer patientsAddition of bevacizumabBreast cancer patientsOverall survivalCancer patientsPredictive valueMean survival time analysisMedian progression-free survivalWorse progression-free survivalAssociation of CTCsCTC-negative patientsFirst-line settingRisk of progressionCox regression modelPotential predictive valueML of bloodAdditional time pointsCirculating Tumor CellsLetrozole armOS benefitPFS benefitMultivariable analysis