Measurement of Domain-Specific HER2 (ERBB2) Expression May Classify Benefit From Trastuzumab in Breast Cancer
Carvajal-Hausdorf DE, Schalper KA, Pusztai L, Psyrri A, Kalogeras KT, Kotoula V, Fountzilas G, Rimm DL. Measurement of Domain-Specific HER2 (ERBB2) Expression May Classify Benefit From Trastuzumab in Breast Cancer. Journal Of The National Cancer Institute 2015, 107: djv136. PMID: 25991002, PMCID: PMC4554192, DOI: 10.1093/jnci/djv136.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntibodies, Monoclonal, HumanizedAntineoplastic AgentsAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsChemotherapy, AdjuvantClinical Trials as TopicDisease-Free SurvivalExtracellular SpaceFemaleFluorescent Antibody TechniqueGene Expression Regulation, NeoplasticHumansIntracellular SpaceKaplan-Meier EstimateMiddle AgedPredictive Value of TestsPrognosisReceptor, ErbB-2Sensitivity and SpecificityTissue Array AnalysisTrastuzumabTreatment OutcomeConceptsHuman epidermal growth factor receptor 2ECD expressionICD statusLonger DFSQuantitative immunofluorescenceTrastuzumab therapyPrognostic valueBreast cancerTissue microarrayEpidermal growth factor receptor 2Adjuvant trastuzumab therapyDisease-free survival analysisTrastuzumab-treated patientsGrowth factor receptor 2High positive predictive valueHER2-positive tumorsKaplan-Meier estimatesFactor receptor 2ERBB2 gene amplificationHER2 protein expressionPositive predictive valueExtracellular domainAdjuvant chemotherapyHER2-ICDBetter DFSHigh HER2 Expression Correlates with Response to the Combination of Lapatinib and Trastuzumab
Scaltriti M, Nuciforo P, Bradbury I, Sperinde J, Agbor-Tarh D, Campbell C, Chenna A, Winslow J, Serra V, Parra JL, Prudkin L, Jimenez J, Aura C, Harbeck N, Pusztai L, Ellis C, Eidtmann H, Arribas J, Cortes J, de Azambuja E, Piccart M, Baselga J. High HER2 Expression Correlates with Response to the Combination of Lapatinib and Trastuzumab. Clinical Cancer Research 2015, 21: 569-576. PMID: 25467182, DOI: 10.1158/1078-0432.ccr-14-1824.Peer-Reviewed Original ResearchConceptsProgression-free survivalPathologic complete responseAnti-HER2 therapyHER2 expressionBreast cancerLonger progression-free survivalCombination of lapatinibExpression of p95HER2Trastuzumab-based therapyHigh HER2 expressionMetastatic breast cancerHER2 protein expressionComplete responseHR statusClinical benefitPrimary tumorHER2 levelsCox modelP95HER2PatientsPositive subsetTrastuzumabLapatinibHER2Expression correlates