2024
Tucatinib-trastuzumab-capecitabine for treatment of leptomeningeal metastasis in HER2+ breast cancer: TBCRC049 phase 2 study results.
O'Brien B, Murthy R, Berry D, Singareeka Raghavendra A, Gule-Monroe M, Johnson J, Schwartz-Gomez J, Topletz-Erickson A, Lobbous M, Melisko M, Morikawa A, Ferguson S, de Groot J, Krop I, Valero V, Rimawi M, Wolff A, Tripathy D, Lin N, Stringer-Reasor E. Tucatinib-trastuzumab-capecitabine for treatment of leptomeningeal metastasis in HER2+ breast cancer: TBCRC049 phase 2 study results. Journal Of Clinical Oncology 2024, 42: 2018-2018. DOI: 10.1200/jco.2024.42.16_suppl.2018.Peer-Reviewed Original ResearchHER2+ breast cancerLeptomeningeal metastasesPatient-reported outcomesBreast cancerObjective responseClinical examCSF cytologyEvidence of clinically meaningful benefitHER2-targeted tyrosine kinase inhibitorsMedian time to CNS progressionMetastatic HER2+ breast cancerKarnofsky performance status >Treatment of leptomeningeal metastasesAbnormal CSF cytologyPerformance status >Targeted neurological deficitsMDASI-BTPhase 2 studyTyrosine kinase inhibitorsClinically meaningful benefitPre-specified timepointsPreliminary efficacy dataCNS progressionMedian OSCNS metastases
2023
Patritumab Deruxtecan (HER3-DXd), a Human Epidermal Growth Factor Receptor 3–Directed Antibody-Drug Conjugate, in Patients With Previously Treated Human Epidermal Growth Factor Receptor 3–Expressing Metastatic Breast Cancer: A Multicenter, Phase I/II Trial
Krop I, Masuda N, Mukohara T, Takahashi S, Nakayama T, Inoue K, Iwata H, Yamamoto Y, Alvarez R, Toyama T, Takahashi M, Osaki A, Saji S, Sagara Y, O'Shaughnessy J, Ohwada S, Koyama K, Inoue T, Li L, Patel P, Mostillo J, Tanaka Y, Sternberg D, Sellami D, Yonemori K. Patritumab Deruxtecan (HER3-DXd), a Human Epidermal Growth Factor Receptor 3–Directed Antibody-Drug Conjugate, in Patients With Previously Treated Human Epidermal Growth Factor Receptor 3–Expressing Metastatic Breast Cancer: A Multicenter, Phase I/II Trial. Journal Of Clinical Oncology 2023, 41: 5550-5560. PMID: 37801674, PMCID: PMC10730028, DOI: 10.1200/jco.23.00882.Peer-Reviewed Original ResearchConceptsTreatment-emergent adverse eventsHuman epidermal growth factor receptor 3Epidermal growth factor receptor 3Metastatic breast cancerGrowth factor receptor 3Breast cancerReceptor 3Dose expansionPrevious therapyClinical subtypesCommon treatment-emergent adverse eventsPhase I/II trialHER2-positive breast cancerTriple-negative breast cancerDose-escalation partDose-expansion partManageable safety profileAdvanced breast cancerEpidermal growth factor receptorAntibody-drug conjugatesGrowth factor receptorAdvanced diseaseHematologic toxicityII trialObjective response
2020
Phase III randomized study of taselisib or placebo with fulvestrant in estrogen receptor-positive, PIK3CA-mutant, HER2-negative, advanced breast cancer: the SANDPIPER trial ☆
Dent S, Cortés J, Im Y, Diéras V, Harbeck N, Krop IE, Wilson TR, Cui N, Schimmoller F, Hsu JY, He J, De Laurentiis M, Sousa S, Drullinsky P, Jacot W. Phase III randomized study of taselisib or placebo with fulvestrant in estrogen receptor-positive, PIK3CA-mutant, HER2-negative, advanced breast cancer: the SANDPIPER trial ☆. Annals Of Oncology 2020, 32: 197-207. PMID: 33186740, PMCID: PMC8457522, DOI: 10.1016/j.annonc.2020.10.596.Peer-Reviewed Original ResearchConceptsInvestigator-assessed progression-free survivalClinical benefit ratePIK3CA-mutant tumorsObjective response rateSecondary endpointsPrimary endpointObjective responseBenefit rateBreast cancerResponse ratePhase III Randomized StudyDisease recurrence/progressionBlinded independent central reviewPIK3CA mutation statusSerious adverse eventsAdvanced breast cancerProgression-free survivalHealth-related qualityMetastatic breast cancerRecurrence/progressionModest clinical benefitIndependent central reviewSelective PI3K inhibitorPI3K inhibitorsMore discontinuationsPhase I dose-escalation trial of tucatinib in combination with trastuzumab in patients with HER2-positive breast cancer brain metastases
Filho O, Leone JP, Li T, Tan-Wasielewski Z, Trippa L, Barry WT, Younger J, Lawler E, Walker L, Freedman RA, Tolaney SM, Krop I, Winer EP, Lin NU. Phase I dose-escalation trial of tucatinib in combination with trastuzumab in patients with HER2-positive breast cancer brain metastases. Annals Of Oncology 2020, 31: 1231-1239. PMID: 32461105, DOI: 10.1016/j.annonc.2020.05.014.Peer-Reviewed Original ResearchConceptsClinical benefit rateHER2-positive brain metastasesAlanine aminotransferase elevationCohort ABrain metastasesCohort BAminotransferase elevationBreast cancerHER2-positive breast cancer brain metastasesPhase I dose-escalation trialMedian progression-free survivalBreast cancer brain metastasesCommon dose-limiting toxicityI dose-escalation trialHER2-positive breast cancerCombination of tucatinibSecondary end pointsCancer brain metastasesDose-escalation trialProgression-free survivalDose-limiting toxicityMetastatic breast cancerBrain radiationObjective responseIntracranial activityA Phase II Study of Pembrolizumab in Combination With Palliative Radiotherapy for Hormone Receptor-positive Metastatic Breast Cancer
Barroso-Sousa R, Krop IE, Trippa L, Tan-Wasielewski Z, Li T, Osmani W, Andrews C, Dillon D, Richardson ET, Pastorello RG, Winer EP, Mittendorf EA, Bellon JR, Schoenfeld JD, Tolaney SM. A Phase II Study of Pembrolizumab in Combination With Palliative Radiotherapy for Hormone Receptor-positive Metastatic Breast Cancer. Clinical Breast Cancer 2020, 20: 238-245. PMID: 32113750, DOI: 10.1016/j.clbc.2020.01.012.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntibodies, Monoclonal, HumanizedAntineoplastic Agents, ImmunologicalBiomarkers, TumorBreastBreast NeoplasmsCarcinoma, Ductal, BreastChemoradiotherapyDrug Administration ScheduleFemaleHumansInfusions, IntravenousMiddle AgedPalliative CareProgrammed Cell Death 1 ReceptorProgression-Free SurvivalReceptor, ErbB-2Receptors, EstrogenReceptors, ProgesteroneResponse Evaluation Criteria in Solid TumorsConceptsMetastatic breast cancerHormone receptor-positive metastatic breast cancerProgression-free survivalRadiation therapyObjective responseOverall survivalBreast cancerResponse rateMedian progression-free survivalCause adverse eventsGrade 3 eventsMedian prior linesMedian overall survivalObjective response ratePalliative radiation therapyPhase II studyTumor-infiltrating lymphocytesLymph node lesionsOverall response rateEpidermal growth factor receptorEligible patientsExploratory endpointsGrowth factor receptorPalliative radiotherapyPrimary endpoint
2019
Current Landscape of Immunotherapy in Breast Cancer
Adams S, Gatti-Mays ME, Kalinsky K, Korde LA, Sharon E, Amiri-Kordestani L, Bear H, McArthur HL, Frank E, Perlmutter J, Page DB, Vincent B, Hayes JF, Gulley JL, Litton JK, Hortobagyi GN, Chia S, Krop I, White J, Sparano J, Disis ML, Mittendorf EA. Current Landscape of Immunotherapy in Breast Cancer. JAMA Oncology 2019, 5: 1205-1214. PMID: 30973611, PMCID: PMC8452050, DOI: 10.1001/jamaoncol.2018.7147.Peer-Reviewed Original ResearchImmune checkpoint blockadeBreast cancerForm of immunotherapyLocal ablative therapyRobust predictive biomarkersCancer immunotherapy trialsAppropriate end pointsCombination therapy strategiesAdditional chemotherapeutic agentsCheckpoint blockadeMetastatic diseaseObjective responseImmunotherapy trialsClinical efficacyAblative therapyPredictive biomarkersClinical trialsImmune responseThoughtful study designImmunotherapyBreast tumorsChemotherapeutic agentsNarrative reviewCancerEnd point
2018
Phase III study of taselisib (GDC-0032) + fulvestrant (FULV) v FULV in patients (pts) with estrogen receptor (ER)-positive, PIK3CA -mutant (MUT), locally advanced or metastatic breast cancer (MBC): Primary analysis from SANDPIPER.
Baselga J, Dent S, Cortés J, Im Y, Diéras V, Harbeck N, Krop I, Verma S, Wilson T, Jin H, Wang L, Schimmoller F, Hsu J, He J, DeLaurentiis M, Drullinsky P, Jacot W. Phase III study of taselisib (GDC-0032) + fulvestrant (FULV) v FULV in patients (pts) with estrogen receptor (ER)-positive, PIK3CA -mutant (MUT), locally advanced or metastatic breast cancer (MBC): Primary analysis from SANDPIPER. Journal Of Clinical Oncology 2018, 36: lba1006-lba1006. DOI: 10.1200/jco.2018.36.18_suppl.lba1006.Peer-Reviewed Original ResearchInvestigator-assessed progression-free survivalMetastatic breast cancerClinical benefit rateObjective response rateOverall survivalBlinded independent central reviewProgression-free survivalIndependent central reviewDose of treatmentSelective PI3K inhibitorBC cell linesPI3K inhibitorsTreat populationPrimary endpointSecondary endpointsAdverse eventsObjective responsePartial responseVisceral diseaseDisease recurrenceEndocrine sensitivityCentral reviewSafety profileAromatase inhibitorsBenefit rate
2017
A phase I study of PF-06647263, a novel EFNA4-ADC, in patients with metastatic triple negative breast cancer.
Garrido-Laguna I, Krop I, Burris H, Hamilton E, Braiteh F, Weise A, Abu-Khalaf M, Zopf C, Lakshminarayanan M, Holland J, Baffa R, Hong D, Hassan R. A phase I study of PF-06647263, a novel EFNA4-ADC, in patients with metastatic triple negative breast cancer. Journal Of Clinical Oncology 2017, 35: 2511-2511. DOI: 10.1200/jco.2017.35.15_suppl.2511.Peer-Reviewed Original ResearchTriple-negative breast cancerAdverse eventsNegative breast cancerExpansion cohortPartial responseBreast cancerMetastatic triple-negative breast cancerAnti-drug antibody developmentCommon adverse eventsDuration of treatmentAnti-tumor activityVivo preclinical studiesQ3w scheduleQW scheduleRECIST responseAdvanced malignanciesMucosal inflammationObjective responseDose escalationTNBC patientsTumor regressionTNBC modelsPreclinical studiesCommon treatmentPK dataSANDPIPER: Phase III study of the PI3-kinase (PI3K) inhibitor taselisib (GDC-0032) plus fulvestrant in patients (pts) with estrogen receptor (ER)-positive, HER2-negative locally advanced or metastatic breast cancer (BC) enriched for pts with PIK3CA- mutant tumors.
Baselga J, Cortés J, DeLaurentiis M, Dent S, Diéras V, Harbeck N, Hsu J, Jin H, Schimmoller F, Wilson T, Im Y, Jacot W, Krop I, Verma S. SANDPIPER: Phase III study of the PI3-kinase (PI3K) inhibitor taselisib (GDC-0032) plus fulvestrant in patients (pts) with estrogen receptor (ER)-positive, HER2-negative locally advanced or metastatic breast cancer (BC) enriched for pts with PIK3CA- mutant tumors. Journal Of Clinical Oncology 2017, 35: tps1119-tps1119. DOI: 10.1200/jco.2017.35.15_suppl.tps1119.Peer-Reviewed Original ResearchPIK3CA-mutant tumorsMetastatic breast cancerBreast cancerPIK3CA mutationsInvestigator-assessed progression-free survivalHER2-negative breast tumorsClinical benefit rateObjective response ratePrimary efficacy endpointProgression-free survivalPatient-reported outcomesAromatase inhibitor treatmentSelective PI3K inhibitorFrequent genomic alterationsProliferation of tumorsBC cell linesPIK3CA mutant breast cancersPI3K inhibitorsEfficacy endpointObjective responseOverall survivalPartial responseVisceral diseaseDisease recurrenceEndocrine sensitivityA randomized, double-blinded, controlled study of tucatinib (ONT-380) vs. placebo in combination with capecitabine (C) and trastuzumab (Tz) in patients with pretreated HER2+ unresectable locally advanced or metastatic breast carcinoma (mBC) (HER2CLIMB).
Anders C, Murthy R, Hamilton E, Borges V, Cameron D, Carey L, Müller V, Curigliano G, Gelmon K, Hortobagyi G, Krop I, Loibl S, Pivot X, Pegram M, Slamon D, Hurvitz S, Tsai M, Winer E. A randomized, double-blinded, controlled study of tucatinib (ONT-380) vs. placebo in combination with capecitabine (C) and trastuzumab (Tz) in patients with pretreated HER2+ unresectable locally advanced or metastatic breast carcinoma (mBC) (HER2CLIMB). Journal Of Clinical Oncology 2017, 35: tps1107-tps1107. DOI: 10.1200/jco.2017.35.15_suppl.tps1107.Peer-Reviewed Original ResearchProgression-free survivalMetastatic breast carcinomaBrain metsIndependent data monitoring committeeClinical benefit ratePhase 1b studyDuration of responseIndependent central reviewPrimary study objectiveData monitoring committeeCNS progressionEGFR agentsPo bidBrain metastasesAdult patientsObjective responseOverall survivalCentral reviewStudy treatmentT-DM1CNS therapyTrastuzumab emtansineBenefit rateSelective small molecule inhibitorsBreast carcinoma
2015
SU2C Phase Ib Study of Paclitaxel and MK-2206 in Advanced Solid Tumors and Metastatic Breast Cancer
Gonzalez-Angulo AM, Krop I, Akcakanat A, Chen H, Liu S, Li Y, Culotta KS, Tarco E, Piha-Paul S, Moulder-Thompson S, Velez-Bravo V, Sahin AA, Doyle LA, Do KA, Winer EP, Mills GB, Kurzrock R, Meric-Bernstam F. SU2C Phase Ib Study of Paclitaxel and MK-2206 in Advanced Solid Tumors and Metastatic Breast Cancer. Journal Of The National Cancer Institute 2015, 107: dju493. PMID: 25688104, PMCID: PMC4342675, DOI: 10.1093/jnci/dju493.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsDrug Administration ScheduleDrug EruptionsFatigueFemaleHeterocyclic Compounds, 3-RingHumansHyperglycemiaMaleMaximum Tolerated DoseMiddle AgedNeoplasmsNeutropeniaPaclitaxelSeverity of Illness IndexTreatment OutcomeConceptsDose escalationDay 1Day 2Higher adverse eventsPhase Ib studyWeeks of therapyAdvanced solid tumorsCTCAE grade 3Metastatic breast cancerPrevious phase IPreliminary antitumor activityDose expansionStable diseaseObjective responseUnacceptable toxicityAdverse eventsMedian ageWeekly dosesClinical benefitPharmacodynamic markersSystemic exposureExcessive toxicityTumor responseGrade 3Median number
2013
Phase II study of ruxolitinib in patients with pStat3+ breast cancer.
Lin N, Gelman R, Brock J, Bardia A, Mayer E, Overmoyer B, Wang V, Iannone M, Krop I, Polyak K, Winer E. Phase II study of ruxolitinib in patients with pStat3+ breast cancer. Journal Of Clinical Oncology 2013, 31: tps1134-tps1134. DOI: 10.1200/jco.2013.31.15_suppl.tps1134.Peer-Reviewed Original ResearchBreast cancerObjective responseCohort BCohort AOpen-label phase 2 trialIL-6/JAK2/STAT3Tumor tissueM.D. Anderson Symptom InventoryTriple-negative breast cancerAdequate organ functionBaseline tumor biopsiesECOG PS 0High-risk myelofibrosisPhase II studyEORTC QLQ CPhase 2 trialInflammatory breast cancerArchival tumor tissueWk 4JAK2/STAT3Further studiesAccessible diseaseMeasurable diseasePrior therapyPrimary endpointA phase II study of bevacizumab in combination with vinorelbine and trastuzumab in HER2-positive metastatic breast cancer
Lin NU, Seah DS, Gelman R, Desantis S, Mayer EL, Isakoff S, DiPiro P, Krop IE, Come SE, Weckstein D, Winer EP, Burstein HJ. A phase II study of bevacizumab in combination with vinorelbine and trastuzumab in HER2-positive metastatic breast cancer. Breast Cancer Research And Treatment 2013, 139: 403-410. PMID: 23645007, DOI: 10.1007/s10549-013-2551-9.Peer-Reviewed Original ResearchConceptsMetastatic breast cancerGrade 3/4 non-hematologic toxicitiesHER2-positive metastatic breast cancerNon-hematologic toxicitiesTreatment-related toxicityBreast cancerCommon treatment-related toxicitiesFirst-line patientsProtocol-based therapySecond-line cohortSecond-line patientsSecond-line settingPhase II studyProportion of patientsCombination of vinorelbineCo-primary endpointsEligible patientsFebrile neutropeniaMedian PFSII studyMedian durationObjective responsePrior linesUnacceptable toxicityMedian age
2012
LBA12 Results from Emilia, A Phase 3 Study of Trastuzumab Emtansine (T-DM1) vs Capecitabine (X) and Lapatinib (L) in Her2-Positive Locally Advanced or Metastatic Breast Cancer (MBC)
Verma S, Miles D, Gianni L, Krop I, Welslau M, Baselga J, Pegram M, Oh D, Diéras V, Guardino E, Fang L, Lu M, Olsen S, Blackwell K. LBA12 Results from Emilia, A Phase 3 Study of Trastuzumab Emtansine (T-DM1) vs Capecitabine (X) and Lapatinib (L) in Her2-Positive Locally Advanced or Metastatic Breast Cancer (MBC). Annals Of Oncology 2012, 23: ixe5-ixe6. DOI: 10.1016/s0923-7534(20)34362-3.Peer-Reviewed Original ResearchProgression-free survivalGenentech/RocheMetastatic breast cancerClinical benefit rateSecondary end pointsT-DM1Overall survivalEnd pointObjective responseTreatment failureBenefit ratePrior treatmentKey secondary end pointInterim overall survivalObjective response ratePrimary end pointSubgroups of ptsHormone receptor statusStudy end pointPhase 3 studyDuration of responsePotential new therapiesFinal PFS analysisCardiac AEsMBC therapy
2010
Phase I Study of Trastuzumab-DM1, an HER2 Antibody-Drug Conjugate, Given Every 3 Weeks to Patients With HER2-Positive Metastatic Breast Cancer
Krop IE, Beeram M, Modi S, Jones SF, Holden SN, Yu W, Girish S, Tibbitts J, Yi JH, Sliwkowski MX, Jacobson F, Lutzker SG, Burris HA. Phase I Study of Trastuzumab-DM1, an HER2 Antibody-Drug Conjugate, Given Every 3 Weeks to Patients With HER2-Positive Metastatic Breast Cancer. Journal Of Clinical Oncology 2010, 28: 2698-2704. PMID: 20421541, DOI: 10.1200/jco.2009.26.2071.Peer-Reviewed Original ResearchMeSH KeywordsAdo-Trastuzumab EmtansineAdultAgedAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedBiopsy, NeedleBone NeoplasmsBreast NeoplasmsDose-Response Relationship, DrugDrug Administration ScheduleFemaleFollow-Up StudiesHalf-LifeHumansImmunoconjugatesImmunohistochemistryLiver NeoplasmsLung NeoplasmsMaximum Tolerated DoseMaytansineMiddle AgedNeoplasm StagingPatient SelectionReceptor, ErbB-2Risk AssessmentSurvival AnalysisThrombocytopeniaTrastuzumabTreatment OutcomeConceptsMaximum-tolerated doseAdvanced HER2-positive breast cancerHER2-positive breast cancerTrastuzumab-DM1Breast cancerAdverse eventsCommon drug-related adverse eventsHER2-positive metastatic breast cancerDrug-related adverse eventsHER2 antibody-drug conjugatesClinical benefit rateConfirmed response rateSubstantial clinical activityTrastuzumab-based therapyMetastatic breast cancerHER2-positive cellsAntibody-drug conjugatesMeasurable diseaseNeuropathy eventsElevated transaminasesCardiac effectsDose modificationMetastatic diseaseObjective responseReversible toxicity