2021
Trial in progress: A phase 1b/2 study of the PARP inhibitor niraparib in combination with trastuzumab in patients with metastatic HER2+ breast cancer (TBCRC 050).
Stringer-Reasor E, Li Y, Witherspoon F, Specht J, Del Santo Anampa Mesias J, Nanda R, Dees E, Wolff A, Krop I, Lin N, Rimawi M, Yang E. Trial in progress: A phase 1b/2 study of the PARP inhibitor niraparib in combination with trastuzumab in patients with metastatic HER2+ breast cancer (TBCRC 050). Journal Of Clinical Oncology 2021, 39: tps1098-tps1098. DOI: 10.1200/jco.2021.39.15_suppl.tps1098.Peer-Reviewed Original ResearchHuman epidermal growth factor receptor 2Metastatic human epidermal growth factor receptor 2Dose-limiting toxicityBreast cancerResponse rateBC cellsEpidermal growth factor receptor 2Single-arm clinical trialECOG PS 0Efficacy of niraparibObjective response ratePhase 1b/2 studyGrowth factor receptor 2Arm clinical trialPARP inhibitor niraparibFactor receptor 2Poly (ADP-ribose) polymerase (PARP) inhibitorsNF-kB signalingMeasurable diseasePhase 1b/2Accrual goalEligible patientsPS 0Clinical benefitCNS disease
2020
TBCRC 048: Phase II Study of Olaparib for Metastatic Breast Cancer and Mutations in Homologous Recombination-Related Genes.
Tung NM, Robson ME, Ventz S, Santa-Maria CA, Nanda R, Marcom PK, Shah PD, Ballinger TJ, Yang ES, Vinayak S, Melisko M, Brufsky A, DeMeo M, Jenkins C, Domchek S, D'Andrea A, Lin NU, Hughes ME, Carey LA, Wagle N, Wulf GM, Krop IE, Wolff AC, Winer EP, Garber JE. TBCRC 048: Phase II Study of Olaparib for Metastatic Breast Cancer and Mutations in Homologous Recombination-Related Genes. Journal Of Clinical Oncology 2020, 38: 4274-4282. PMID: 33119476, DOI: 10.1200/jco.20.02151.Peer-Reviewed Original ResearchConceptsMetastatic breast cancerObjective response rateProgression-free survivalPoly (ADP-ribose) polymerase (PARP) inhibitorsPhase II studyBreast cancerMutation carriersII studyMedian progression-free survivalNegative metastatic breast cancerHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2Clinical benefit rateHER2-negative diseasePlatinum-refractory diseaseGrowth factor receptor 2Population of patientsFactor receptor 2Homologous recombination-related genesConfirmed responsesEligible patientsMeasurable diseaseSecondary endpointsChemotherapy regimensPrimary endpoint
2018
Phase II Study of Taselisib (GDC-0032) in Combination with Fulvestrant in Patients with HER2-Negative, Hormone Receptor–Positive Advanced Breast Cancer
Dickler MN, Saura C, Richards DA, Krop IE, Cervantes A, Bedard PL, Patel MR, Pusztai L, Oliveira M, Cardenas AK, Cui N, Wilson TR, Stout TJ, Wei MC, Hsu JY, Baselga J. Phase II Study of Taselisib (GDC-0032) in Combination with Fulvestrant in Patients with HER2-Negative, Hormone Receptor–Positive Advanced Breast Cancer. Clinical Cancer Research 2018, 24: 4380-4387. PMID: 29793946, PMCID: PMC6139036, DOI: 10.1158/1078-0432.ccr-18-0613.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsClass I Phosphatidylinositol 3-KinasesDisease-Free SurvivalDrug-Related Side Effects and Adverse ReactionsFemaleFulvestrantHumansImidazolesMiddle AgedMutationOxazepinesReceptor, ErbB-2Receptors, EstrogenConceptsAdverse eventsClinical activityBreast cancerMutation statusOpen-label phase II studyHR-positive breast cancerHigher objective response rateConfirmatory phase III trialNCI CTCAE v4.0Median treatment durationObjective response ratePhase II studySerious adverse eventsNew safety signalsPhase III trialsPositive breast cancerClin Cancer ResIntramuscular fulvestrantMeasurable diseaseRECIST v1.1II studyIII trialsPostmenopausal womenUnacceptable toxicityTumor response
2017
Phase I Dose-Escalation Study of Taselisib, an Oral PI3K Inhibitor, in Patients with Advanced Solid Tumors
Juric D, Krop I, Ramanathan RK, Wilson TR, Ware JA, Bohorquez S, Savage HM, Sampath D, Salphati L, Lin RS, Jin H, Parmar H, Hsu JY, Von Hoff DD, Baselga J. Phase I Dose-Escalation Study of Taselisib, an Oral PI3K Inhibitor, in Patients with Advanced Solid Tumors. Cancer Discovery 2017, 7: 704-715. PMID: 28331003, PMCID: PMC5501742, DOI: 10.1158/2159-8290.cd-16-1080.Peer-Reviewed Original ResearchConceptsDose-limiting toxicityAdverse eventsMutant tumorsHigh-grade adverse eventsTreatment-related adverse eventsConfirmed response rateMetastatic solid tumorsTumor xenograft modelPatient tumor samplesMeasurable diseasePharmacodynamic findingsPreclinical dataTumor patientsTumor growth inhibitorLow doseXenograft modelDose levelsResponse rateSolid tumorsPathway inhibitionPatientsPathway suppressionTumor samplesTumorsHotspot mutations
2016
Phase 1b/2a study of trastuzumab emtansine (T-DM1), paclitaxel, and pertuzumab in HER2-positive metastatic breast cancer
Krop IE, Modi S, LoRusso PM, Pegram M, Guardino E, Althaus B, Lu D, Strasak A, Elias A. Phase 1b/2a study of trastuzumab emtansine (T-DM1), paclitaxel, and pertuzumab in HER2-positive metastatic breast cancer. Breast Cancer Research 2016, 18: 34. PMID: 26979312, PMCID: PMC4791863, DOI: 10.1186/s13058-016-0691-7.Peer-Reviewed Original ResearchConceptsClinical benefit ratePhase 1b/2a studyObjective response rateT-DM1Adverse eventsPaclitaxel dosesPeripheral neuropathyBreast cancerHER2-positive advanced breast cancerHER2-positive metastatic breast cancerPhase 2aPhase 1bGrade adverse eventsT-DM1 3.6Advanced breast cancerMetastatic breast cancerDose-escalation approachPre-clinical studiesAnti-tumor activityConclusionsThis regimenExperienced gradeMeasurable diseasePaclitaxel 80Prior therapyResultsThe MTD
2015
Trastuzumab 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
2013
Trastuzumab emtansine (T-DM1) in previously treated HER2-positive metastatic breast cancer (MBC): Results from an expanded access study.
Yardley D, Krop I, LoRusso P, Robert N, Mayer M, Abidoye O, Lai C, Yoo B, Perez E. Trastuzumab emtansine (T-DM1) in previously treated HER2-positive metastatic breast cancer (MBC): Results from an expanded access study. Journal Of Clinical Oncology 2013, 31: 166-166. DOI: 10.1200/jco.2013.31.26_suppl.166.Peer-Reviewed Original ResearchMetastatic breast cancerObjective response rateHER2-positive metastatic breast cancerT-DM1Investigator-assessed objective response rateMedian cumulative anthracycline doseAccess StudyCumulative anthracycline doseCytotoxic agent DM1HER2-directed agentsMost common gradeUS multicenter studyNew safety signalsRate of gradeConventional clinical trialsAnthracycline doseGrade AEsMBC therapyMeasurable diseaseMedian LVEFPrior anthracyclineSecondary endpointsMUGA scanCardiac dysfunctionMulticenter studyPhase 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 endpoint
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
2009
A phase II study of oral enzastaurin in patients with metastatic breast cancer previously treated with an anthracycline and a taxane containing regimen
Mina L, Krop I, Zon RT, Isakoff SJ, Schneider CJ, Yu M, Johnson C, Vaughn LG, Wang Y, Hristova-Kazmierski M, Shonukan OO, Sledge GW, Miller KD. A phase II study of oral enzastaurin in patients with metastatic breast cancer previously treated with an anthracycline and a taxane containing regimen. Investigational New Drugs 2009, 27: 565. PMID: 19214387, DOI: 10.1007/s10637-009-9220-1.Peer-Reviewed Original ResearchConceptsMetastatic breast cancerPhase II studyPI3K/AktII studyBreast cancerGrade 3/4 hematologic toxicitiesMedian progression-free survivalGrade 3 nonhematologic toxicityHuman epidermal growth factor 2Epidermal growth factor 2Prior trastuzumab therapyCycles of therapySolid Tumors criteriaProgression-free survivalResponse Evaluation CriteriaBreast cancer pathogenesisSerine-threonine kinase inhibitorMBC progressionOral enzastaurinPrior anthracyclineEligible patientsHematologic toxicityMeasurable diseaseNonhematologic toxicityPrior regimensA phase I study of weekly dosing of trastuzumab-DM1 (T-DM1) in patients with advanced HER2+ breast cancer.
Krop I, Mita M, Burris H, Birkner M, Girish S, Tibbitts J, Holden S, Lutzker S, Modi S. A phase I study of weekly dosing of trastuzumab-DM1 (T-DM1) in patients with advanced HER2+ breast cancer. Cancer Research 2009, 69: 3136. DOI: 10.1158/0008-5472.sabcs-3136.Peer-Reviewed Original ResearchTrastuzumab-DM1Advanced HER2Antibody-drug conjugatesBreast cancerChemotherapy regimenCycle 1 day 1HER2 antibody-drug conjugatesFirst antibody-drug conjugatePhase IActivity of trastuzumabGrade 4 thrombocytopeniaReversible transaminase elevationT-DM1 exposureDose-escalation studyPhase II trialMeasurable diseaseQ3W dosingTransaminase elevationEscalation studyII trialPartial responseWeekly dosingCardiac toxicityTumor responseClinical trials