2018
Phase 1/1b dose escalation and expansion study of BEZ235, a dual PI3K/mTOR inhibitor, in patients with advanced solid tumors including patients with advanced breast cancer
Rodon J, Pérez-Fidalgo A, Krop IE, Burris H, Guerrero-Zotano A, Britten CD, Becerra C, Schellens J, Richards DA, Schuler M, Abu-Khalaf M, Johnson FM, Ranson M, Edenfield J, Silva AP, Hackl W, Quadt C, Demanse D, Duval V, Baselga J. Phase 1/1b dose escalation and expansion study of BEZ235, a dual PI3K/mTOR inhibitor, in patients with advanced solid tumors including patients with advanced breast cancer. Cancer Chemotherapy And Pharmacology 2018, 82: 285-298. PMID: 29882016, PMCID: PMC6286256, DOI: 10.1007/s00280-018-3610-z.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntineoplastic AgentsAntineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsDose-Response Relationship, DrugDrug CompoundingFemaleHumansImidazolesMaleMiddle AgedNeoplasmsPhosphoinositide-3 Kinase InhibitorsQuinolinesTOR Serine-Threonine KinasesTrastuzumabConceptsAdvanced breast cancerSingle agentBreast cancerSolid tumorsHigh dosesPhase I/IbEnd pointDual PI3K/mTOR inhibitorContinuous daily scheduleDose-escalation partMost frequent AEsOpen-label studyPrimary end pointSecondary end pointsAdvanced solid tumorsPI3K/mTOR inhibitorCombination cohortConclusionsThe MTDGastrointestinal AEsPartial responseDose escalationFrequent AEsOral inhibitorResultsOne hundredLow dose
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 inhibitionMetastasisInhibitionRemissionXenograftsMiceOvercoming Therapeutic Resistance in HER2-Positive Breast Cancers with CDK4/6 Inhibitors
Goel S, Wang Q, Watt AC, Tolaney SM, Dillon DA, Li W, Ramm S, Palmer AC, Yuzugullu H, Varadan V, Tuck D, Harris LN, Wong KK, Liu XS, Sicinski P, Winer EP, Krop IE, Zhao JJ. Overcoming Therapeutic Resistance in HER2-Positive Breast Cancers with CDK4/6 Inhibitors. Cancer Cell 2016, 29: 255-269. PMID: 26977878, PMCID: PMC4794996, DOI: 10.1016/j.ccell.2016.02.006.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBreast NeoplasmsCell Line, TumorCyclin-Dependent Kinase 4Cyclin-Dependent Kinase 6Disease Models, AnimalDrug Resistance, NeoplasmErbB ReceptorsFemaleHumansMechanistic Target of Rapamycin Complex 1MiceMice, NudeMice, TransgenicMultiprotein ComplexesNeoplasm Recurrence, LocalPhosphorylationProtein Kinase InhibitorsReceptor, ErbB-2TOR Serine-Threonine KinasesTumor Suppressor ProteinsConceptsHER2-positive breast cancerCDK4/6 inhibitorsBreast cancerEGFR/HER2Patient-derived xenograft tumorsTransgenic mouse modelInhibition of CDK4/6Tumor recurrenceXenograft tumorsMouse modelPotent suppressionTransgenic modelClinical specimensTherapeutic resistanceDual inhibitionMediate resistanceHER2CancerTSC2 phosphorylationG1 arrestCellular senescenceTherapyRb phosphorylationTumorsCDK4/6
2012
Phase I safety, pharmacokinetic, and pharmacodynamic study of the oral phosphatidylinositol-3-kinase and mTOR inhibitor BGT226 in patients with advanced solid tumors
Markman B, Tabernero J, Krop I, Shapiro G, Siu L, Chen L, Mita M, Cuero M, Stutvoet S, Birle D, Anak Ö, Hackl W, Baselga J. Phase I safety, pharmacokinetic, and pharmacodynamic study of the oral phosphatidylinositol-3-kinase and mTOR inhibitor BGT226 in patients with advanced solid tumors. Annals Of Oncology 2012, 23: 2399-2408. PMID: 22357447, DOI: 10.1093/annonc/mds011.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntineoplastic AgentsBreast NeoplasmsColonic NeoplasmsDiarrheaFemaleFluorodeoxyglucose F18HumansImidazolesMaleMaximum Tolerated DoseMiddle AgedNauseaPhosphoinositide-3 Kinase InhibitorsProstatic NeoplasmsQuinolinesRadionuclide ImagingRadiopharmaceuticalsTOR Serine-Threonine KinasesTreatment OutcomeYoung AdultConceptsAdvanced solid tumorsPreliminary antitumor activityStable diseaseSystemic exposureAdaptive Bayesian logistic regression modelSolid tumorsPhase I dose-escalation studyI dose-escalation studyFluorodeoxyglucose positron emission tomographyStable metabolic diseaseVariable systemic exposureAntitumor activityDose-escalation studyLow systemic exposurePI3K pathway inhibitionDay three timesLogistic regression modelsAdverse eventsDose escalationFluorodeoxyglucose uptakeRapamycin inhibitorsTumor shrinkagePharmacodynamic studiesComputed tomographyMTOR inhibitors
2011
Phase I/II Study of Trastuzumab in Combination With Everolimus (RAD001) in Patients With HER2-Overexpressing Metastatic Breast Cancer Who Progressed on Trastuzumab-Based Therapy
Morrow PK, Wulf GM, Ensor J, Booser DJ, Moore JA, Flores PR, Xiong Y, Zhang S, Krop IE, Winer EP, Kindelberger DW, Coviello J, Sahin AA, Nuñez R, Hortobagyi GN, Yu D, Esteva FJ. Phase I/II Study of Trastuzumab in Combination With Everolimus (RAD001) in Patients With HER2-Overexpressing Metastatic Breast Cancer Who Progressed on Trastuzumab-Based Therapy. Journal Of Clinical Oncology 2011, 29: 3126-3132. PMID: 21730275, PMCID: PMC3157979, DOI: 10.1200/jco.2010.32.2321.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsDisease-Free SurvivalEverolimusFemaleHumansImmunohistochemistryKaplan-Meier EstimateMiddle AgedNeoplasm MetastasisPTEN PhosphohydrolaseReceptor, ErbB-2Salvage TherapySirolimusTOR Serine-Threonine KinasesTrastuzumabConceptsHER2-overexpressing metastatic breast cancerMetastatic breast cancerProgression-free survivalCombination of everolimusTrastuzumab-based therapyPTEN lossBreast cancerPhase I/II studyMedian progression-free survivalDana-Farber Cancer InstituteTexas MD Anderson Cancer CenterMD Anderson Cancer CenterBeth Israel Deaconess Medical CenterClinical benefit ratePersistent stable diseaseAnderson Cancer CenterDownstream mammalian targetDaily everolimusNonhematologic toxicityStable diseaseII studyOverall survivalPartial responseHER2 overexpressingClinical benefit