2020
Evaluating the clinical effectiveness and safety of various HER2-targeted regimens after prior taxane/trastuzumab in patients with previously treated, unresectable, or metastatic HER2-positive breast cancer: a systematic review and network meta-analysis
Paracha N, Reyes A, Diéras V, Krop I, Pivot X, Urruticoechea A. Evaluating the clinical effectiveness and safety of various HER2-targeted regimens after prior taxane/trastuzumab in patients with previously treated, unresectable, or metastatic HER2-positive breast cancer: a systematic review and network meta-analysis. Breast Cancer Research And Treatment 2020, 180: 597-609. PMID: 32100144, PMCID: PMC7103014, DOI: 10.1007/s10549-020-05577-7.Peer-Reviewed Original ResearchConceptsMetastatic HER2-positive breast cancerHER2-positive breast cancerOverall response rateProgression-free survivalT-DM1Breast cancerHazard ratioOverall survivalHead trial dataElevated liver transaminasesGastrointestinal side effectsTrial of treatmentAbsence of headRandom-effects NMAAdjuvant therapyEfficacy outcomesLiver transaminasesSafety endpointTolerability profileAdverse eventsEarly relapseMethodsSystematic reviewClinical effectivenessTrastuzumab emtansineConclusionsThe efficacy
2019
HER2-Enriched Subtype and ERBB2 Expression in HER2-Positive Breast Cancer Treated with Dual HER2 Blockade
Prat A, Pascual T, De Angelis C, Gutierrez C, Llombart-Cussac A, Wang T, Cortés J, Rexer B, Paré L, Forero A, Wolff AC, Morales S, Adamo B, Brasó-Maristany F, Vidal M, Veeraraghavan J, Krop I, Galván P, Pavlick AC, Bermejo B, Izquierdo M, Rodrik-Outmezguine V, Reis-Filho JS, Hilsenbeck SG, Oliveira M, Dieci MV, Griguolo G, Fasani R, Nuciforo P, Parker JS, Conte P, Schiff R, Guarneri V, Osborne CK, Rimawi MF. HER2-Enriched Subtype and ERBB2 Expression in HER2-Positive Breast Cancer Treated with Dual HER2 Blockade. Journal Of The National Cancer Institute 2019, 112: 46-54. PMID: 31037288, PMCID: PMC7850037, DOI: 10.1093/jnci/djz042.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntibodies, Monoclonal, HumanizedAntineoplastic AgentsAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsClinical Trials, Phase II as TopicClinical Trials, Phase III as TopicFemaleGene ExpressionHumansLapatinibMiddle AgedMolecular Targeted TherapyNeoadjuvant TherapyNeoplasm StagingPrognosisReceptor, ErbB-2Reproducibility of ResultsSurvival AnalysisTreatment OutcomeConceptsHER2-positive breast cancerProgression-free survivalOverall response rateHER2-positive diseasePathological complete responseOverall survivalBreast cancerEarly diseaseAdvanced HER2-positive diseaseLonger progression-free survivalHigher overall response rateDual HER2 blockadeLonger overall survivalHER2-positive tumorsHER2 blockadeNeoadjuvant lapatinibNeoadjuvant trastuzumabAdvanced diseaseComplete responsePrimary outcomeClinical trialsIntrinsic subtypesIdentifies tumorsAdvanced settingERBB2 mRNAGenomic alterations in breast cancer: level of evidence for actionability according to ESMO Scale for Clinical Actionability of molecular Targets (ESCAT)
Condorelli R, Mosele F, Verret B, Bachelot T, Bedard P, Cortes J, Hyman D, Juric D, Krop I, Bieche I, Saura C, Sotiriou C, Cardoso F, Loibl S, Andre F, Turner N. Genomic alterations in breast cancer: level of evidence for actionability according to ESMO Scale for Clinical Actionability of molecular Targets (ESCAT). Annals Of Oncology 2019, 30: 365-373. PMID: 30715161, DOI: 10.1093/annonc/mdz036.Peer-Reviewed Original ResearchConceptsLevel of evidenceBreast cancerESMO ScaleClinical actionabilityGenomic alterationsMicrosatellite instabilityLarge randomized trialsMolecular targetsBRCA 1/2 mutationsGermline BRCA1/2 mutationsESR1 mutationsPreclinical evidenceNTRK fusionsRandomized trialsPIK3CA mutationsERBB2 mutationsBRCA1/2 mutationsRecurrent genomic alterationsMDM2 amplificationERBB2 amplificationClinical practiceDriver alterationsPTEN lossTumor genomic landscapeAntitumor activity
2016
Combination inhibition of PI3K and mTORC1 yields durable remissions in mice bearing orthotopic patient-derived xenografts of HER2-positive breast cancer brain metastases
Ni J, Ramkissoon SH, Xie S, Goel S, Stover DG, Guo H, Luu V, Marco E, Ramkissoon LA, Kang YJ, Hayashi M, Nguyen QD, Ligon AH, Du R, Claus EB, Alexander BM, Yuan GC, Wang ZC, Iglehart JD, Krop IE, Roberts TM, Winer EP, Lin NU, Ligon KL, Zhao JJ. Combination inhibition of PI3K and mTORC1 yields durable remissions in mice bearing orthotopic patient-derived xenografts of HER2-positive breast cancer brain metastases. Nature Medicine 2016, 22: 723-726. PMID: 27270588, PMCID: PMC4938731, DOI: 10.1038/nm.4120.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAminopyridinesAnimalsAntineoplastic AgentsApoptosisBrain NeoplasmsBreast NeoplasmsCarrier ProteinsCaspase 3Cell Cycle ProteinsDNA RepairDrug Resistance, NeoplasmDrug Therapy, CombinationEukaryotic Initiation FactorsEverolimusFemaleGene Expression ProfilingGenomic InstabilityHumansImmunohistochemistryKi-67 AntigenMagnetic Resonance ImagingMechanistic Target of Rapamycin Complex 1MiceMice, SCIDMolecular Targeted TherapyMorpholinesMultiprotein ComplexesNeoplasm TransplantationPhosphoinositide-3 Kinase InhibitorsPhosphoproteinsPhosphorylationReceptor, ErbB-2Remission InductionTOR Serine-Threonine KinasesXenograft Model Antitumor AssaysConceptsBreast cancer brain metastasesCancer brain metastasesBrain metastasesHER2-positive breast cancer brain metastasesOrthotopic patient-derived xenograftsPI3KPatient-derived xenograftsDurable remissionsTherapeutic responseMouse modelCombined inhibitionCombination inhibitionMetastasisInhibitionRemissionXenograftsMiceHERMIONE: a randomized Phase 2 trial of MM-302 plus trastuzumab versus chemotherapy of physician’s choice plus trastuzumab in patients with previously treated, anthracycline-naïve, HER2-positive, locally advanced/metastatic breast cancer
Miller K, Cortes J, Hurvitz SA, Krop IE, Tripathy D, Verma S, Riahi K, Reynolds JG, Wickham TJ, Molnar I, Yardley DA. HERMIONE: a randomized Phase 2 trial of MM-302 plus trastuzumab versus chemotherapy of physician’s choice plus trastuzumab in patients with previously treated, anthracycline-naïve, HER2-positive, locally advanced/metastatic breast cancer. BMC Cancer 2016, 16: 352. PMID: 27259714, PMCID: PMC4893300, DOI: 10.1186/s12885-016-2385-z.Peer-Reviewed Original ResearchConceptsHER2-positive breast cancerProgression-free survivalPhase 2 trialMetastatic breast cancerBreast cancerDisease progressionOverall survivalMM-302Physician's choiceInvestigator-assessed progression-free survivalMetastatic HER2-positive breast cancerRandomized phase 2 trialEpidermal growth factor receptor 2Anthracycline-naïve patientsBackgroundHuman epidermal growth factor receptor 2Objective response rateGrowth factor receptor 2Positive breast cancerAdo-trastuzumab emtansineKey inclusion criteriaFactor receptor 2Quality of lifeOS ratesRECIST v1.1Refractory HER2
2015
The Evolving Landscape of HER2 Targeting in Breast Cancer
Moasser MM, Krop IE. The Evolving Landscape of HER2 Targeting in Breast Cancer. JAMA Oncology 2015, 1: 1154. PMID: 26204261, DOI: 10.1001/jamaoncol.2015.2286.Peer-Reviewed Original ResearchConceptsTreatment of HER2Breast cancerImmunologic effectorsHER2 targetingSubstantial single-agent activityHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2Value of HER2Lines of therapyGrowth factor receptor 2Single-agent activityLate-stage diseaseStage of diseaseUseful predictive biomarkerHER2 inhibitor lapatinibFactor receptor 2Variety of cytotoxicModest efficacyTrastuzumab resistancePredictive biomarkersCell surface expressionImmunologic activityInhibitor lapatinibReceptor 2Advanced stagePI3K-p110α mediates resistance to HER2-targeted therapy in HER2+, PTEN-deficient breast cancers
Wang Q, Liu P, Spangle JM, Von T, Roberts TM, Lin NU, Krop IE, Winer EP, Zhao JJ. PI3K-p110α mediates resistance to HER2-targeted therapy in HER2+, PTEN-deficient breast cancers. Oncogene 2015, 35: 3607-3612. PMID: 26500061, PMCID: PMC4846581, DOI: 10.1038/onc.2015.406.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBreast NeoplasmsCell Line, TumorCell SurvivalClass I Phosphatidylinositol 3-KinasesDrug Resistance, NeoplasmFemaleHumansLapatinibMammary Neoplasms, ExperimentalMice, KnockoutMolecular Targeted TherapyPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsProtein Kinase InhibitorsProto-Oncogene Proteins c-aktPTEN PhosphohydrolaseQuinazolinesReceptor, ErbB-2Signal TransductionThiazolesTumor BurdenXenograft Model Antitumor AssaysConceptsBreast tumorsP110β inhibitorsHuman epidermal growth factor receptor 2 (HER2) amplificationP110α inhibitionPTEN lossInhibition of HER2Treatment of HER2Human cancersPI3K pathway activationPTEN-deficient breast cancersGenetic mouse modelsPI3K/Akt signalingPTEN-deficient tumorsPI3K/AktDual HER2Therapeutic regimenHER2 inhibitionPIK3CA mutationsTumor regressionBreast cancerMouse modelXenograft modelHER2Null tumorsHER2 activationTrastuzumab Emtansine (T-DM1) in Patients With HER2-Positive Metastatic Breast Cancer Previously Treated With Chemotherapy and 2 or More HER2-Targeted Agents
Yardley DA, Krop IE, LoRusso PM, Mayer M, Barnett B, Yoo B, Perez EA. Trastuzumab Emtansine (T-DM1) in Patients With HER2-Positive Metastatic Breast Cancer Previously Treated With Chemotherapy and 2 or More HER2-Targeted Agents. The Cancer Journal 2015, 21: 357-364. PMID: 26389758, DOI: 10.1097/ppo.0000000000000144.Peer-Reviewed Original ResearchMeSH KeywordsAdo-Trastuzumab EmtansineAdultAgedAntibodies, Monoclonal, HumanizedAntineoplastic AgentsAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsBreast Neoplasms, MaleComorbidityFemaleHumansMaleMaytansineMiddle AgedMolecular Targeted TherapyNeoplasm MetastasisNeoplasm Recurrence, LocalNeoplasm StagingReceptor, ErbB-2RetreatmentTrastuzumabTreatment OutcomeConceptsMetastatic breast cancerObjective response rateAdvanced breast cancerBreast cancerT-DM1Measurable diseaseAdverse eventsTrastuzumab emtansineGrade 3Investigator-assessed objective response rateHER2-positive metastatic breast cancerResponse ratePositive metastatic breast cancerHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2Grade adverse eventsNew safety signalsPhase III studyGrowth factor receptor 2Significant cardiovascular diseaseVentricular ejection fractionPlatelet count decreaseSimilar patient populationsRoutine clinical practiceFactor receptor 2
2014
Systemic Therapy for Patients With Advanced Human Epidermal Growth Factor Receptor 2–Positive Breast Cancer: American Society of Clinical Oncology Clinical Practice Guideline
Giordano SH, Temin S, Kirshner JJ, Chandarlapaty S, Crews JR, Davidson NE, Esteva FJ, Gonzalez-Angulo AM, Krop I, Levinson J, Lin NU, Modi S, Patt DA, Perez EA, Perlmutter J, Ramakrishna N, Winer EP. Systemic Therapy for Patients With Advanced Human Epidermal Growth Factor Receptor 2–Positive Breast Cancer: American Society of Clinical Oncology Clinical Practice Guideline. Journal Of Clinical Oncology 2014, 32: 2078-2099. PMID: 24799465, PMCID: PMC6076031, DOI: 10.1200/jco.2013.54.0948.Peer-Reviewed Original ResearchMeSH KeywordsAdo-Trastuzumab EmtansineAnastrozoleAntibodies, Monoclonal, HumanizedAntineoplastic Agents, HormonalAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsClinical Trials as TopicComorbidityDocetaxelDrug Administration ScheduleEvidence-Based MedicineFemaleHealth Status DisparitiesHealthcare DisparitiesHumansLapatinibLetrozoleMaytansineMolecular Targeted TherapyNitrilesQuinazolinesReceptor, ErbB-2Receptors, EstrogenReceptors, ProgesteroneSocieties, MedicalTaxoidsTrastuzumabTreatment OutcomeTriazolesUnited StatesConceptsAdvanced breast cancerHuman epidermal growth factor receptorSecond-line treatmentProgression-free survivalFirst-line treatmentBreast cancerPFS benefitT-DM1Epidermal growth factor receptorEndocrine therapyGrowth factor receptorSystemic therapyEstrogen receptor-positive/progesterone receptor-positive breast cancerAdvanced human epidermal growth factor receptorHER2-positive advanced breast cancerProgesterone receptor-positive breast cancerClinical Oncology Clinical Practice GuidelineClinical congestive heart failureStandard first-line therapyPositive advanced breast cancerLeft ventricular ejection fractionOncology Clinical Practice GuidelineReceptor-positive breast cancerThird-line settingFirst-line therapyNew research on the treatment of small HER2-positive breast cancers.
Krop IE. New research on the treatment of small HER2-positive breast cancers. Clinical Advances In Hematology And Oncology 2014, 12: 124-7. PMID: 24892258.Peer-Reviewed Original Research
2013
Beyond trastuzumab and lapatinib: new options for HER2-positive breast cancer .
Zardavas D, Cameron D, Krop I, Piccart M. Beyond trastuzumab and lapatinib: new options for HER2-positive breast cancer . American Society Of Clinical Oncology Educational Book 2013, 33: e2-e11. PMID: 23714441, DOI: 10.1200/edbook_am.2013.33.e2.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, Monoclonal, HumanizedAntineoplastic AgentsBreast NeoplasmsChemotherapy, AdjuvantDrug Resistance, NeoplasmFemaleHumansLapatinibMolecular Targeted TherapyNeoadjuvant TherapyProtein Kinase InhibitorsQuinazolinesReceptor, ErbB-2Signal TransductionTrastuzumabTreatment OutcomeConceptsHER2-positive breast cancerDual HER2 blockadeAntibody-drug conjugatesHER2 blockadeBreast cancerMetastatic settingClinical trialsAnti-HER2 resistanceAnti-HER2 agentsLarge randomized trialsHER2-targeted agentsNew treatment optionsAggressive biologic behaviorMajor clinical issueImproved treatment outcomesNew therapeutic avenuesDevelopment of agentsAdjuvant settingNeoadjuvant settingAdvanced diseaseTrastuzumab-DM1Randomized trialsTreatment optionsBiologic rationaleHER2 inhibition
2012
A Phase II Study of Trastuzumab Emtansine in Patients With Human Epidermal Growth Factor Receptor 2–Positive Metastatic Breast Cancer Who Were Previously Treated With Trastuzumab, Lapatinib, an Anthracycline, a Taxane, and Capecitabine
Krop IE, LoRusso P, Miller KD, Modi S, Yardley D, Rodriguez G, Guardino E, Lu M, Zheng M, Girish S, Amler L, Winer EP, Rugo HS. A Phase II Study of Trastuzumab Emtansine in Patients With Human Epidermal Growth Factor Receptor 2–Positive Metastatic Breast Cancer Who Were Previously Treated With Trastuzumab, Lapatinib, an Anthracycline, a Taxane, and Capecitabine. Journal Of Clinical Oncology 2012, 30: 3234-3241. PMID: 22649126, DOI: 10.1200/jco.2011.40.5902.Peer-Reviewed Original ResearchMeSH KeywordsAdo-Trastuzumab EmtansineAdultAgedAnthracyclinesAntibodies, Monoclonal, HumanizedAntineoplastic AgentsBreast NeoplasmsBridged-Ring CompoundsCapecitabineDeoxycytidineDisease-Free SurvivalFemaleFluorouracilHumansImmunotoxinsLapatinibMaleMaytansineMiddle AgedMolecular Targeted TherapyNeoplasm MetastasisQuinazolinesReceptor, ErbB-2TaxoidsTrastuzumabConceptsHER2-positive metastatic breast cancerHuman epidermal growth factor receptor 2Metastatic breast cancerProgression-free survivalOverall response rateMedian progression-free survivalPhase II studyT-DM1II studyTrastuzumab emtansineBreast cancerResponse rateSingle-arm phase II studyEpidermal growth factor receptor 2Human epidermal growth factor receptorClinical benefit rateHER2-directed therapiesMost adverse eventsGrowth factor receptor 2Single-agent activityHER2-positive tumorsMultiple chemotherapy agentsEffective new treatmentsFactor receptor 2Epidermal growth factor receptor