2021
SYST-06. PHASE II TRIAL OF PAXALISIB (GDC-0084) IN COMBINATION WITH TRASTUZUMAB FOR PATIENTS WITH HER2-POSITIVE BREAST CANCER BRAIN METASTASES (BCBM)
Leone J, Tayob N, Pereslete A, Ligibel J, Parsons H, Bi W, Zhao J, Winer E, Lin N. SYST-06. PHASE II TRIAL OF PAXALISIB (GDC-0084) IN COMBINATION WITH TRASTUZUMAB FOR PATIENTS WITH HER2-POSITIVE BREAST CANCER BRAIN METASTASES (BCBM). Neuro-Oncology Advances 2021, 3: iv9-iv9. DOI: 10.1093/noajnl/vdab112.034.Peer-Reviewed Original ResearchBreast cancer brain metastasesObjective response rateCohort BCohort ACNS metastasesPrimary endpointHER2-positive breast cancer brain metastasesNeuro-Oncology Brain Metastases criteriaCentral nervous system metastasesHER2-positive breast cancerPatient-derived xenografts (PDX) modelsPhase II cohortNervous system metastasesPhase II studyCancer brain metastasesPhase II trialPI3K/Akt/mTORPatient-reported outcomesPI3KBrain-penetrant inhibitorAkt/mTORMetastasis (TNM) criteriaBrain metastasesII trialMetastasis resection
2019
PIK3CA and MAP3K1 alterations imply luminal A status and are associated with clinical benefit from pan-PI3K inhibitor buparlisib and letrozole in ER+ metastatic breast cancer
Nixon MJ, Formisano L, Mayer IA, Estrada MV, González-Ericsson PI, Isakoff SJ, Forero-Torres A, Won H, Sanders ME, Solit DB, Berger MF, Cantley LC, Winer EP, Arteaga CL, Balko JM. PIK3CA and MAP3K1 alterations imply luminal A status and are associated with clinical benefit from pan-PI3K inhibitor buparlisib and letrozole in ER+ metastatic breast cancer. Npj Breast Cancer 2019, 5: 31. PMID: 31552290, PMCID: PMC6757060, DOI: 10.1038/s41523-019-0126-6.Peer-Reviewed Original ResearchMetastatic breast cancerClinical benefitBreast cancerPan-PI3K inhibitor buparlisibHuman epidermal growth factor 2Epidermal growth factor 2K inhibitorsPan-PI3K inhibitorPhase Ib studySubset of patientsPI3KBreast cancer cell linesPI3K inhibitorsPAM50 analysisCancer cell linesEndocrine therapyGrowth factor 2Only biomarkerPIK3CA mutationsClinical trialsMetastatic tissuesTherapeutic combinationsIb studyPatientsBuparlisibTRLS-03. PHASE II TRIAL OF GDC-0084 IN COMBINATION WITH TRASTUZUMAB FOR PATIENTS WITH HER2-POSITIVE BREAST CANCER BRAIN METASTASES (BCBM)
Leone J, Trippa L, Milisits L, Andrews C, Ligibel J, Parsons H, Bi W, Zhao J, Winer E, Lin N. TRLS-03. PHASE II TRIAL OF GDC-0084 IN COMBINATION WITH TRASTUZUMAB FOR PATIENTS WITH HER2-POSITIVE BREAST CANCER BRAIN METASTASES (BCBM). Neuro-Oncology Advances 2019, 1: i9-i9. PMCID: PMC7213424, DOI: 10.1093/noajnl/vdz014.036.Peer-Reviewed Original ResearchBreast cancer brain metastasesObjective response rateCohort BCohort ACNS metastasesPrimary endpointHER2-positive breast cancer brain metastasesNeuro-Oncology Brain Metastases criteriaCentral nervous system metastasesHER2-positive breast cancerPatient-derived xenografts (PDX) modelsPhase II cohortNervous system metastasesPhase II studyCancer brain metastasesPhase II trialPI3K/Akt/mTORPatient-reported outcomesPI3KBrain-penetrant inhibitorAkt/mTORCombination of GDCMetastasis (TNM) criteriaBrain metastasesII trial
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 inhibitionMetastasisInhibitionRemissionXenograftsMice