2024
Development and validation of RSClin N+ tool for hormone receptor-positive (HR+), HER2-negative (HER2-), node-positive breast cancer.
Pusztai L, Hoag J, Albain K, Barlow W, Stemmer S, Meisner A, Hortobagyi G, Shak S, Hayes D, Rae J, Baehner F, Sharma P, Kalinsky K. Development and validation of RSClin N+ tool for hormone receptor-positive (HR+), HER2-negative (HER2-), node-positive breast cancer. Journal Of Clinical Oncology 2024, 42: 508-508. DOI: 10.1200/jco.2024.42.16_suppl.508.Peer-Reviewed Original ResearchChemoendocrine therapyRecurrence scoreClinicopathological factorsBreast cancerPostmenopausal patientsNode-negative breast cancerNode-positive breast cancerHormone receptor-positiveNode-positive diseaseHR+/HER2- breast cancerRisk estimatesHigh-risk patientsEstimating 5-year riskEstimation of recurrence riskLikelihood ratioPremenopausal patientsHER2-negativeReceptor-positiveChemotherapy benefitEndocrine therapyMenopausal statusRisk patientsInvasive diseasePrognostic informationPostmenopausal model
2023
Evaluation of the Sensitivity to Endocrine Therapy Index and 21-Gene Breast Recurrence Score in the SWOG S8814 Trial
Speers C, Symmans W, Barlow W, Trevarton A, The S, Du L, Rae J, Shak S, Baehner R, Sharma P, Pusztai L, Hortobagyi G, Hayes D, Albain K, Godwin A, Thompson A. Evaluation of the Sensitivity to Endocrine Therapy Index and 21-Gene Breast Recurrence Score in the SWOG S8814 Trial. Journal Of Clinical Oncology 2023, 41: 1841-1848. PMID: 36649570, PMCID: PMC10082279, DOI: 10.1200/jco.22.01499.Peer-Reviewed Original ResearchConceptsBreast Recurrence ScoreAnthracycline-based chemotherapyDisease-free survivalRecurrence scoreEndocrine therapyTherapy indexAdjuvant anthracycline-based chemotherapyNode-positive breast cancerAdjuvant endocrine therapyPrimary end pointSubset of patientsPostmenopausal patientsChemotherapy benefitTreatment armsPrognostic indexPrognostic informationBreast cancerPrognostic assessmentPrognostic performancePatientsEnd pointTumor samplesChemotherapyClinical validationProportional hazards assumption
2021
Predicted sensitivity to endocrine therapy for stage II-III hormone receptor-positive and HER2-negative (HR+/HER2−) breast cancer before chemo-endocrine therapy
Du L, Yau C, Brown-Swigart L, Gould R, Krings G, Hirst G, Bedrosian I, Layman R, Carter J, Klein M, Venters S, Shad S, van der Noordaa M, Chien A, Haddad T, Isaacs C, Pusztai L, Albain K, Nanda R, Tripathy D, Liu M, Boughey J, Schwab R, Hylton N, DeMichele A, Perlmutter J, Yee D, Berry D, Veer L, Valero V, Esserman L, Symmans W. Predicted sensitivity to endocrine therapy for stage II-III hormone receptor-positive and HER2-negative (HR+/HER2−) breast cancer before chemo-endocrine therapy. Annals Of Oncology 2021, 32: 642-651. PMID: 33617937, DOI: 10.1016/j.annonc.2021.02.011.Peer-Reviewed Original ResearchConceptsResidual cancer burdenI-SPY2 trialIndependent prognostic informationPrognostic informationBreast cancerPrognostic signaturePre-treatment tumor biopsiesHER2-negative breast cancerStage IIDistant relapse-free survivalMultivariate Cox regression modelHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2Chemo-endocrine therapyEndocrine-based treatmentAdjuvant endocrine therapyGrowth factor receptor 2Primary outcome measureRelapse-free survivalSimilar prognostic informationCox regression modelMolecular prognostic signaturesNegative breast cancerFactor receptor 2MDACC cohort
2016
Quantitative assessment of the spatial heterogeneity of tumor-infiltrating lymphocytes in breast cancer
Mani NL, Schalper KA, Hatzis C, Saglam O, Tavassoli F, Butler M, Chagpar AB, Pusztai L, Rimm DL. Quantitative assessment of the spatial heterogeneity of tumor-infiltrating lymphocytes in breast cancer. Breast Cancer Research 2016, 18: 78. PMID: 27473061, PMCID: PMC4966732, DOI: 10.1186/s13058-016-0737-x.Peer-Reviewed Original ResearchConceptsIntraclass correlation coefficientQuantitative immunofluorescenceBreast cancerSame cancerSingle biopsyMultiplexed quantitative immunofluorescenceTumor-infiltrating lymphocytesPotential predictive markerPrimary breast carcinomaCytokeratin-positive epithelial cellsCD20-positive lymphocytesCD8 levelsLymphocyte scoreQIF scoresLymphocyte countLymphocyte subpopulationsMultiple biopsiesSubpopulation countsPredictive markerPrognostic informationBreast carcinomaBiopsyB lymphocytesCD3Breast tumors
2015
Prospective assessment of the decision-making impact of the Breast Cancer Index in recommending extended adjuvant endocrine therapy for patients with early-stage ER-positive breast cancer
Sanft T, Aktas B, Schroeder B, Bossuyt V, DiGiovanna M, Abu-Khalaf M, Chung G, Silber A, Hofstatter E, Mougalian S, Epstein L, Hatzis C, Schnabel C, Pusztai L. Prospective assessment of the decision-making impact of the Breast Cancer Index in recommending extended adjuvant endocrine therapy for patients with early-stage ER-positive breast cancer. Breast Cancer Research And Treatment 2015, 154: 533-541. PMID: 26578401, PMCID: PMC4661200, DOI: 10.1007/s10549-015-3631-9.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAntineoplastic Agents, HormonalAnxietyBreast NeoplasmsChemotherapy, AdjuvantDecision MakingFemaleGene Expression Regulation, NeoplasticGenetic TestingHumansMiddle AgedNeoplasm Recurrence, LocalPrognosisProspective StudiesReceptors, EstrogenSurveys and QuestionnairesTamoxifenConceptsBreast Cancer IndexExtended endocrine therapyER-positive breast cancerAdjuvant endocrine therapyEndocrine therapyDecisional Conflict ScaleBreast cancerCancer indexPhysician recommendationRisk/benefit discussionEarly-stage estrogen receptorEndocrine therapy trialsYale Cancer CenterPositive breast cancerState-Trait Anxiety Inventory FormMean STAIExtended therapyLate recurrenceAbsolute benefitCancer CenterPatient satisfactionPrognostic informationTreatment recommendationsPatient anxietyImproved outcomes
2012
Assessment of method of breast cancer detection and Onco type DX recurrence score.
Kelly C, Parker I, McCaffrey J, Crown J, O'Connor M, McGee S, Pusztai L, Kelly C. Assessment of method of breast cancer detection and Onco type DX recurrence score. Journal Of Clinical Oncology 2012, 30: 581-581. DOI: 10.1200/jco.2012.30.15_suppl.581.Peer-Reviewed Original ResearchRecurrence scoreClinicopathological variablesBreast cancerLymph nodesHER-2 negative breast cancerSignificant associationHER2-negative breast cancerFavorable pathological characteristicsTraditional clinicopathological variablesScreen-detected cancersNumber of patientsDX recurrence scoreNegative breast cancerMethod of detectionOncotypeDX recurrence scoreLymphovascular invasionBetter prognosisInterval cancersPatient chartsRoutine careTumor sizePathological characteristicsPrognostic informationTumor gradeClinical trials
2010
Prognostic and Therapeutic Implications of Distinct Kinase Expression Patterns in Different Subtypes of Breast Cancer
Bianchini G, Iwamoto T, Qi Y, Coutant C, Shiang CY, Wang B, Santarpia L, Valero V, Hortobagyi GN, Symmans WF, Gianni L, Pusztai L. Prognostic and Therapeutic Implications of Distinct Kinase Expression Patterns in Different Subtypes of Breast Cancer. Cancer Research 2010, 70: 8852-8862. PMID: 20959472, DOI: 10.1158/0008-5472.can-10-1039.Peer-Reviewed Original ResearchConceptsPathologic complete responseBreast cancerClinical subtypesPredictive valueHigher pathologic complete responseHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2Different clinical subsetsDistinct prognostic informationNode-negative patientsGrowth factor receptor 2Different clinical subtypesBreast cancer cell linesFactor receptor 2Subtype-specific inhibitionCancer cell linesNeoadjuvant chemotherapyAdjuvant therapyComplete responseClinical subsetsWorse prognosisPrognostic valuePrognostic informationClinical subgroupsExpression patterns
2009
Correlation of PIK3CA mutation-associated gene expression signature (PIK3CA-GS) with deactivation of the PI3K pathway and with prognosis within the luminal-B ER+ breast cancers
Loi S, Haibe-Kains B, Lallemand F, Pusztai L, Bardelli A, Gillett C, Ellis P, Piccart-Gebhart M, Phillips W, McArthur G, Sotiriou C. Correlation of PIK3CA mutation-associated gene expression signature (PIK3CA-GS) with deactivation of the PI3K pathway and with prognosis within the luminal-B ER+ breast cancers. Journal Of Clinical Oncology 2009, 27: 533-533. DOI: 10.1200/jco.2009.27.15_suppl.533.Peer-Reviewed Original ResearchPI3K pathwayBreast cancerPIK3CA mutationsMutation statusGene expression signaturesK pathwayClinical outcomesLuminal B breast cancerLuminal BC subtypePIK3CA mutation statusBetter clinical outcomesIndependent prognostic informationB breast cancerExpression signaturesPI3K inhibitorsPI3K inhibitionBC cohortDistinct gene expression signaturesEndocrine therapyBC samplesBC subtypesPrognostic informationFavorable outcomeEstrogen receptorMutation carriers
2008
Current Status of Prognostic Profiling in Breast Cancer
Pusztai L. Current Status of Prognostic Profiling in Breast Cancer. The Oncologist 2008, 13: 350-360. PMID: 18448548, DOI: 10.1634/theoncologist.2007-0216.Peer-Reviewed Original ResearchMeSH KeywordsAntigens, NeoplasmAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsClinical Trials as TopicDNA Topoisomerases, Type IIDNA-Binding ProteinsFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticHumansOligonucleotide Array Sequence AnalysisOncogenesPredictive Value of TestsPrognosisReceptor, ErbB-2Receptors, EstrogenResearch DesignTamoxifenTaxoidsTreatment OutcomeConceptsBreast cancerClinical-pathological variablesClinical trial planningClinical courseClinical outcomesPathological variablesTreatment armsPrognostic informationClinical trialsTreatment strategiesClinicopathologic parametersHeterogeneous diseaseSpecific treatmentTherapeutic targetPrognostic profilingClinical heterogeneityGene expression fingerprintProspective tissue collectionAbnormal gene expressionIndividual tumorsPrognostic testTumorsPredictive indicatorIndividual diseasesTrial planning
2007
New Generation of Molecular Prognostic and Predictive Tests for Breast Cancer
Pusztai L, Cristofanilli M, Paik S. New Generation of Molecular Prognostic and Predictive Tests for Breast Cancer. Seminars In Oncology 2007, 34: s10-s16. PMID: 17512431, DOI: 10.1053/j.seminoncol.2007.03.015.Peer-Reviewed Original ResearchConceptsBreast cancerBreast cancer careDifferent clinical coursesAvailable diagnostic assaysTrial-based approachClinical coursePrognostic predictorCancer carePrognostic informationSimilar tumorsMolecular PrognosticHeterogeneous diseaseTumor cellsCancerPredictive testDiagnostic assaysNovel diagnosticsMolecular analytical techniquesMolecular differencesImportant advancesMolecular analysisPatientsDiagnostic companiesTumorsDisease