2011
Gefitinib or Placebo in Combination with Tamoxifen in Patients with Hormone Receptor–Positive Metastatic Breast Cancer: A Randomized Phase II Study
Osborne CK, Neven P, Dirix LY, Mackey JR, Robert J, Underhill C, Schiff R, Gutierrez C, Migliaccio I, Anagnostou VK, Rimm DL, Magill P, Sellers M. Gefitinib or Placebo in Combination with Tamoxifen in Patients with Hormone Receptor–Positive Metastatic Breast Cancer: A Randomized Phase II Study. Clinical Cancer Research 2011, 17: 1147-1159. PMID: 21220480, PMCID: PMC3074404, DOI: 10.1158/1078-0432.ccr-10-1869.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntineoplastic Agents, HormonalAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsDrug-Related Side Effects and Adverse ReactionsErbB ReceptorsFemaleGefitinibHumansMiddle AgedNeoplasms, Hormone-DependentPlacebosQuinazolinesReceptor, ErbB-2Receptors, EstrogenSignal TransductionTamoxifenTreatment OutcomeConceptsAdjuvant aromatase inhibitorsMetastatic breast cancerBreast cancerHormone receptor-positive metastatic breast cancerPositive metastatic breast cancerRandomized phase II studyRandomized phase II trialClinical benefit ratePhase II studyPhase II trialProgression-free survivalStratum 1Epidermal growth factor receptor inhibitor gefitinibFurther investigationAdjuvant tamoxifenImproved PFSPFS HRAI therapyII studyII trialMetastatic diseaseAppropriate patientsPredictive biomarkersPrimary tumorTamoxifen resistance
2007
Quantitative Measurement of Epidermal Growth Factor Receptor Is a Negative Predictive Factor for Tamoxifen Response in Hormone Receptor–Positive Premenopausal Breast Cancer
Giltnane JM, Rydén L, Cregger M, Bendahl PO, Jirström K, Rimm DL. Quantitative Measurement of Epidermal Growth Factor Receptor Is a Negative Predictive Factor for Tamoxifen Response in Hormone Receptor–Positive Premenopausal Breast Cancer. Journal Of Clinical Oncology 2007, 25: 3007-3014. PMID: 17634479, DOI: 10.1200/jco.2006.08.9938.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedBiomarkersBiopsy, NeedleBreast NeoplasmsDrug Resistance, NeoplasmErbB ReceptorsEstrogen AntagonistsFemaleHumansImmunohistochemistryMiddle AgedMultivariate AnalysisPredictive Value of TestsPremenopauseProbabilityProportional Hazards ModelsReceptors, EstrogenRisk AssessmentSensitivity and SpecificitySurvival AnalysisTamoxifenConceptsEpidermal growth factor receptorER-positive patientsEGFR expressionBreast cancerEstrogen receptorTamoxifen-treated patientsEarly breast cancerRecurrence-free survivalRandomized clinical trialsLow EGFR expressionSignificant beneficial effectAdjuvant tamoxifenGrowth factor receptorEndocrine therapyTamoxifen responseTamoxifen treatmentClinical trialsSitu protein expressionUntreated groupTissue microarrayPatientsBeneficial effectsProtein expressionFactor receptorTreatment effects