Pharmacokinetic (PK) analyses in CSF and plasma from TBCRC049, an ongoing trial to assess the safety and efficacy of the combination of tucatinib, trastuzumab and capecitabine for the treatment of leptomeningeal metastasis (LM) in HER2 positive breast cancer.
Stringer-Reasor E, O'Brien B, Topletz-Erickson A, White J, Lobbous M, Riley K, Childress J, LaMaster K, Melisko M, Morikawa A, De Groot J, Krop I, Valero V, Rimawi M, Wolff A, Tripathy D, Lin N, Murthy R. Pharmacokinetic (PK) analyses in CSF and plasma from TBCRC049, an ongoing trial to assess the safety and efficacy of the combination of tucatinib, trastuzumab and capecitabine for the treatment of leptomeningeal metastasis (LM) in HER2 positive breast cancer. Journal Of Clinical Oncology 2021, 39: 1044-1044. DOI: 10.1200/jco.2021.39.15_suppl.1044.Peer-Reviewed Original ResearchLeptomeningeal metastasesBrain metastasesBreast cancerPharmacokinetic analysisPhase 2 single-arm studyHER2-positive breast cancerCombination of tucatinibNew brain metastasesSingle-arm studyPositive breast cancerTyrosine kinase inhibitorsHigh interindividual variabilityMetastatic HER2Accrual goalEligible patientsMetastatic settingPrimary endpointOverall survivalOmmaya reservoirOngoing trialsPlasma concentrationsCapecitabinePatientsDay 1PK samplesTrial 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