2024
RNA-Seq based gene expression profiling of baseline and on-treatment breast tumors to predict response to HER2-directed therapy, without chemotherapy (TBCRC026).
Hennessy M, Fernández A, Huang C, Cimino-Mathews A, Denbow R, Abramson V, Rimawi M, Specht J, Storniolo A, Valero V, Vaklavas C, Winer E, Krop I, Wolff A, Wahl R, Thompson E, Stearns V, Perou C, Carey L, Connolly R. RNA-Seq based gene expression profiling of baseline and on-treatment breast tumors to predict response to HER2-directed therapy, without chemotherapy (TBCRC026). Journal Of Clinical Oncology 2024, 42: 530-530. DOI: 10.1200/jco.2024.42.16_suppl.530.Peer-Reviewed Original ResearchRelapse-free survivalB cell signaturesGene expression signaturesHER2-directed therapyPET/CT parametersER-negativeHER2 subtypeClinical outcomesEarly stage HER2-positive breast cancerResponse to HER2-directed therapyAssociated with lack of responseHER2-positive breast cancerGene expression changesUnivariate logistic regression analysisHER2-positive cohortIncreased immune signalingMetabolic changesAssociated with pCRNatural killer cellsNested Cox modelsLogistic regression analysisWilcoxon signed-rank testHER2 ampliconFDG-PET/CTHER2- tumors
2023
ER+, HER2− advanced breast cancer treated with taselisib and fulvestrant: genomic landscape and associated clinical outcomes
Chen J, Jacot W, Cortés J, Krop I, Dent S, Harbeck N, De Laurentiis M, Diéras V, Im Y, Stout T, Schimmoller F, Savage H, Hutchinson K, Wilson T. ER+, HER2− advanced breast cancer treated with taselisib and fulvestrant: genomic landscape and associated clinical outcomes. Molecular Oncology 2023, 17: 2000-2016. PMID: 36892268, PMCID: PMC10552898, DOI: 10.1002/1878-0261.13416.Peer-Reviewed Original ResearchConceptsProgression-free survivalBreast cancerShorter progression-free survivalNeurofibromin 1Advanced breast cancerBreast cancer patientsP53 pathway genesPI3K inhibitorsPI3K inhibitionBaseline ctDNAEndocrine therapyClinical outcomesCancer patientsEstrogen receptorCatalytic subunit alphaTumor DNATaselisibK inhibitorsK inhibitionPI3KOutcomesCancerAlterationsGenomic landscapeProtein p53
2022
Circulating Tumor DNA and Late Recurrence in High-Risk Hormone Receptor–Positive, Human Epidermal Growth Factor Receptor 2–Negative Breast Cancer
Lipsyc-Sharf M, de Bruin EC, Santos K, McEwen R, Stetson D, Patel A, Kirkner GJ, Hughes ME, Tolaney SM, Partridge AH, Krop IE, Knape C, Feger U, Marsico G, Howarth K, Winer EP, Lin NU, Parsons HA. Circulating Tumor DNA and Late Recurrence in High-Risk Hormone Receptor–Positive, Human Epidermal Growth Factor Receptor 2–Negative Breast Cancer. Journal Of Clinical Oncology 2022, 40: 2408-2419. PMID: 35658506, PMCID: PMC9467679, DOI: 10.1200/jco.22.00908.Peer-Reviewed Original ResearchConceptsMinimal residual diseaseWhole-exome sequencingClinical recurrenceMetastatic recurrenceBreast cancerEarly-stage hormone receptor-positive breast cancerHormone receptor-positive breast cancerTumor tissueHigh-risk stage IIReceptor-positive breast cancerTumor DNAHuman epidermal growth factor receptorDistant metastatic recurrenceHormone receptor positiveMRD-positive patientsPlasma samplesTime of consentPrimary tumor tissuesSufficient tumor tissueEpidermal growth factor receptorAdjuvant settingGrowth factor receptorLocal recurrenceClinical outcomesDistant metastasisClinical outcomes with alpelisib (ALP) plus fulvestrant (FUL) after prior treatment (tx) with FUL in patients (pts) with advanced breast cancer (ABC): A real-world (RW) analysis.
O'Shaughnessy J, Woeckel A, Pistilli B, Hegg R, Vahdat L, Vuina D, ZVK P, Smith T, Kim J, Krop I. Clinical outcomes with alpelisib (ALP) plus fulvestrant (FUL) after prior treatment (tx) with FUL in patients (pts) with advanced breast cancer (ABC): A real-world (RW) analysis. Journal Of Clinical Oncology 2022, 40: 1055-1055. DOI: 10.1200/jco.2022.40.16_suppl.1055.Peer-Reviewed Original ResearchAdvanced breast cancerEndocrine-based therapyPIK3CA mutationsMetastatic settingClinical outcomesCyclin-dependent kinase 4/6 inhibitorsDe-identified electronic health record dataHuman epidermal growth factor receptorImmediate prior therapyLines of therapyProgression-free survivalProgression/deathElectronic health record dataDate of deathHealth record dataEpidermal growth factor receptorReal-world analysisGrowth factor receptorNCCN guidelinesPrior chemotherapyPrior therapyMedian durationMedian timeSubsequent therapyClinical benefitCirculating tumor DNA (ctDNA) and late recurrence in high-risk, hormone receptor–positive, HER2-negative breast cancer (CHiRP).
Lipsyc-Sharf M, De Bruin E, Santos K, McEwen R, Stetson D, Patel A, Kirkner G, Hughes M, Tolaney S, Krop I, Knape C, Feger U, Marsico G, Howarth K, Winer E, Lin N, Parsons H. Circulating tumor DNA (ctDNA) and late recurrence in high-risk, hormone receptor–positive, HER2-negative breast cancer (CHiRP). Journal Of Clinical Oncology 2022, 40: 103-103. DOI: 10.1200/jco.2022.40.16_suppl.103.Peer-Reviewed Original ResearchMinimal residual diseaseDistant metastatic recurrenceAdjuvant endocrine therapyWhole-exome sequencingEndocrine therapyMetastatic recurrenceClinical outcomesBreast cancerHormone receptor-positive breast cancerPlasma samplesTumor tissueHER2-negative breast cancerReceptor-positive breast cancerTumor DNACtDNA detectionRegular surveillance imagingStage 3 diseaseCurative intent chemotherapyTime of consentPrimary tumor tissuesCurrent practice standardsSufficient tumor tissueLiquid biopsy testsAdjuvant settingCtDNA dynamicsPhase II Study of Taselisib in PIK3CA-Mutated Solid Tumors Other Than Breast and Squamous Lung Cancer: Results From the NCI-MATCH ECOG-ACRIN Trial (EAY131) Subprotocol I
Krop IE, Jegede OA, Grilley-Olson JE, Lauring JD, Mitchell EP, Zwiebel JA, Gray RJ, Wang V, McShane LM, Rubinstein LV, Patton D, Williams PM, Hamilton SR, Kono SA, Ford JM, Garcia AA, Sui XD, Siegel RD, Slomovitz BM, Conley BA, Arteaga CL, Harris LN, O'Dwyer PJ, Chen AP, Flaherty KT. Phase II Study of Taselisib in PIK3CA-Mutated Solid Tumors Other Than Breast and Squamous Lung Cancer: Results From the NCI-MATCH ECOG-ACRIN Trial (EAY131) Subprotocol I. JCO Precision Oncology 2022, 6: e2100424. PMID: 35138919, PMCID: PMC8865530, DOI: 10.1200/po.21.00424.Peer-Reviewed Original ResearchConceptsProgression-free survivalOverall survivalSix-month progression-free survivalSolid tumorsMedian progression-free survivalSix-month overall survivalEnd pointSquamous cell lung carcinomaNational Cancer Institute-Molecular AnalysisMedian overall survivalObjective response ratePhase II studyPrimary end pointSecondary end pointsCell lung carcinomaSquamous lung cancerMutant breast cancerCommon toxicitiesEligible patientsProtocol therapyUnacceptable toxicityII studyPartial responseAdvanced cancerClinical outcomes
2021
Circulating tumor cell number and endocrine therapy index in ER positive metastatic breast cancer patients
Paoletti C, Regan MM, Niman SM, Dolce EM, Darga EP, Liu MC, Marcom PK, Hart LL, Smith JW, Tedesco KL, Amir E, Krop IE, DeMichele AM, Goodwin PJ, Block M, Aung K, Brown ME, McCormack RT, Hayes DF. Circulating tumor cell number and endocrine therapy index in ER positive metastatic breast cancer patients. Npj Breast Cancer 2021, 7: 77. PMID: 34117261, PMCID: PMC8196036, DOI: 10.1038/s41523-021-00281-1.Peer-Reviewed Original ResearchMetastatic breast cancerProgression-free survivalER-positive metastatic breast cancerHER2-negative metastatic breast cancerWorse progression-free survivalWhole bloodTherapy indexExact testPositive metastatic breast cancer patientsMedian progression-free survivalMetastatic breast cancer patientsHuman epidermal growth factor receptorMulti-institutional clinical trialsGroup of patientsBreast cancer patientsSerial time pointsFisher's exact testTumor cell numberEpidermal growth factor receptorElevated CTCsGrowth factor receptorPrimary endpointClinical outcomesCancer patientsClinical trialsThe impact of tumor epithelial and microenvironmental heterogeneity on treatment responses in HER2-positive breast cancer
Janiszewska M, Stein S, Filho O, Eng J, Kingston NL, Harper NW, Rye IH, Alečković M, Trinh A, Murphy KC, Marangoni E, Cristea S, Oakes B, Winer EP, Krop I, Russnes HG, Spellman PT, Bucher E, Hu Z, Chin K, Gray JW, Michor F, Polyak K. The impact of tumor epithelial and microenvironmental heterogeneity on treatment responses in HER2-positive breast cancer. JCI Insight 2021, 6: e147617. PMID: 33886505, PMCID: PMC8262355, DOI: 10.1172/jci.insight.147617.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntibodies, Monoclonal, HumanizedAntineoplastic Agents, ImmunologicalBreast NeoplasmsClass I Phosphatidylinositol 3-KinasesDNA Copy Number VariationsDrug Resistance, NeoplasmEpithelial CellsFemaleFibroblastsHumansMacrophagesMiddle AgedMutationNeoplasm TransplantationReceptor, ErbB-2TrastuzumabTumor MicroenvironmentVesicular Transport ProteinsConceptsBreast cancerTherapeutic resistanceHuman epidermal growth factor receptor 2HER2-positive breast cancerEpidermal growth factor receptor 2Patient-derived xenograft modelsLymphatic vessel endothelial hyaluronan receptorHER2-targeted therapiesGrowth factor receptor 2Impact of tumorFibroblastic reticular cellsFactor receptor 2Tumor epithelial cellsIntratumor heterogeneityDivergent cellular phenotypesResistance-conferring mutationsClinical outcomesPIK3CA mutationsTreatment responseClinical challengeDifferent therapiesFrequency of cellsXenograft modelReceptor 2Stromal determinants
2020
Changes in Peripheral and Local Tumor Immunity after Neoadjuvant Chemotherapy Reshape Clinical Outcomes in Patients with Breast Cancer
Axelrod ML, Nixon MJ, Gonzalez-Ericsson PI, Bergman RE, Pilkinton MA, McDonnell WJ, Sanchez V, Opalenik SR, Loi S, Zhou J, Mackay S, Rexer BN, Abramson VG, Jansen VM, Mallal S, Donaldson J, Tolaney SM, Krop IE, Garrido-Castro AC, Marotti JD, Shee K, Miller TW, Sanders ME, Mayer IA, Salgado R, Balko JM. Changes in Peripheral and Local Tumor Immunity after Neoadjuvant Chemotherapy Reshape Clinical Outcomes in Patients with Breast Cancer. Clinical Cancer Research 2020, 26: 5668-5681. PMID: 32826327, PMCID: PMC7642197, DOI: 10.1158/1078-0432.ccr-19-3685.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAlbuminsAntineoplastic Combined Chemotherapy ProtocolsB7-H1 AntigenCD8-Positive T-LymphocytesFemaleGene Expression Regulation, NeoplasticHumansLymphocytes, Tumor-InfiltratingMiddle AgedNeoadjuvant TherapyNeoplasm ProteinsNeoplasm Recurrence, LocalPaclitaxelPrognosisProgrammed Cell Death 1 ReceptorProgression-Free SurvivalTreatment OutcomeTriple Negative Breast NeoplasmsTumor MicroenvironmentConceptsTriple-negative breast cancerTumor immune microenvironmentNeoadjuvant chemotherapyOverall survivalBreast cancerPeripheral bloodResidual diseaseMetastatic triple-negative breast cancerEffect of NACImproved long-term outcomesActive antitumor immunityLocal tumor immunityRole of chemotherapyT-cell signatureLong-term outcomesPeripheral T cellsMultiple immune-related genesImmune-related genesNab-paclitaxelImmunologic effectsMicrometastatic diseasePersistent diseaseAntitumor immunityTumor immunityClinical outcomes
2017
Seven-year (yr) follow-up of adjuvant paclitaxel (T) and trastuzumab (H) (APT trial) for node-negative, HER2-positive breast cancer (BC).
Tolaney S, Barry W, Guo H, Dillon D, Dang C, Yardley D, Moy B, Marcom P, Albain K, Rugo H, Ellis M, Shapira I, Wolff A, Carey L, Overmoyer B, Partridge A, Hudis C, Krop I, Burstein H, Winer E. Seven-year (yr) follow-up of adjuvant paclitaxel (T) and trastuzumab (H) (APT trial) for node-negative, HER2-positive breast cancer (BC). Journal Of Clinical Oncology 2017, 35: 511-511. DOI: 10.1200/jco.2017.35.15_suppl.511.Peer-Reviewed Original ResearchBreast cancer-specific survivalDisease-free survivalRecurrence-free intervalBreast cancerDistant recurrenceOverall survivalTumor sizeNew contralateral breast cancerHER2-positive breast cancerNode-negative HER2Cancer-specific survivalPhase II studyContralateral breast cancerAdjuvant paclitaxelAPT trialNodal micrometastasisPrimary endpointProtocol therapyAdjuvant therapyDFS eventsII studyDisease recurrenceRegional recurrenceSpecific survivalClinical outcomes
2015
Phase II Study of Lapatinib in Combination With Trastuzumab in Patients With Human Epidermal Growth Factor Receptor 2–Positive Metastatic Breast Cancer: Clinical Outcomes and Predictive Value of Early [18F]Fluorodeoxyglucose Positron Emission Tomography Imaging (TBCRC 003)
Lin NU, Guo H, Yap JT, Mayer IA, Falkson CI, Hobday TJ, Dees EC, Richardson AL, Nanda R, Rimawi MF, Ryabin N, Najita JS, Barry WT, Arteaga CL, Wolff AC, Krop IE, Winer EP, Van den Abbeele AD. Phase II Study of Lapatinib in Combination With Trastuzumab in Patients With Human Epidermal Growth Factor Receptor 2–Positive Metastatic Breast Cancer: Clinical Outcomes and Predictive Value of Early [18F]Fluorodeoxyglucose Positron Emission Tomography Imaging (TBCRC 003). Journal Of Clinical Oncology 2015, 33: 2623-2631. PMID: 26169615, PMCID: PMC4534525, DOI: 10.1200/jco.2014.60.0353.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntibodies, Monoclonal, HumanizedAntineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsCohort StudiesFemaleFluorodeoxyglucose F18HumansLapatinibMiddle AgedNeoplasm MetastasisPositron-Emission TomographyQuinazolinesReceptor, ErbB-2TrastuzumabTreatment OutcomeConceptsMetastatic breast cancerHuman epidermal growth factor receptorClinical benefit rateEpidermal growth factor receptorObjective response rateProgression-free survivalGrowth factor receptorClinical outcomesWeek 1Cohort 2Benefit rateCohort 1Breast cancerFactor receptorPredictive valueResponse rateConfirmed objective response rateMedian progression-free survivalEnd pointPhase II studyPrimary end pointSecondary end pointsSelection of patientsToxicity of chemotherapyPET/CT
2008
Epithelial and Stromal Cathepsin K and CXCL14 Expression in Breast Tumor Progression
Kleer CG, Bloushtain-Qimron N, Chen YH, Carrasco D, Hu M, Yao J, Kraeft SK, Collins LC, Sabel MS, Argani P, Gelman R, Schnitt SJ, Krop IE, Polyak K. Epithelial and Stromal Cathepsin K and CXCL14 Expression in Breast Tumor Progression. Clinical Cancer Research 2008, 14: 5357-5367. PMID: 18765527, PMCID: PMC2630242, DOI: 10.1158/1078-0432.ccr-08-0732.Peer-Reviewed Original ResearchConceptsBreast tumor progressionTumor epithelial cellsTumor progressionCathepsin KCTSK inhibitorsEpithelial cellsCXCL14 expressionBiopsy siteHuman breast tumor progressionBreast stromal fibroblastsExpression of CXCL14Higher tumor stageInvasive breast tumorsNormal breast tissueOverall survivalPatient characteristicsClinical outcomesHistopathologic characteristicsDuctal carcinomaTumor stageStromal expressionSitu carcinomaClinical roleEpithelial expressionImmunohistochemical analysis