2020
Clinical efficacy and molecular effects of lenvatinib (Len) and letrozole (Let) in hormone receptor-positive (HR+) metastatic breast cancer (MBC).
Lim J, Wong A, Ow S, Ngoi N, Ang Y, Chan G, Eng L, Chong W, Choo J, Lee M, Tan H, Jan Y, Tan K, Sundar R, Tan D, Soo R, Chee C, Yong W, Goh B, Lee S. Clinical efficacy and molecular effects of lenvatinib (Len) and letrozole (Let) in hormone receptor-positive (HR+) metastatic breast cancer (MBC). Journal Of Clinical Oncology 2020, 38: 1019-1019. DOI: 10.1200/jco.2020.38.15_suppl.1019.Peer-Reviewed Original ResearchDisease control rateObjective response rateMetastatic breast cancerEffect of lenvatinibDose escalationEndocrine therapyEfficacy dataRecommended phase 2 doseAll-grade toxicitiesPhase 2 doseDose-escalation phaseHormone receptor-positiveDuration of responsePhase Ib/II studyTumor molecular profilingSerial tumor biopsiesAnti-tumor activityMolecular effectsMedian DoRPrior CTPALB2 mutationsProgression-freeExpansion cohortMBC patientsReceptor-positive
2019
A phase Ib/II trial of lenvatinib (len) and letrozole (let) incorporating pharmacodynamics studies in postmenopausal women with hormone receptor positive (HR+) locally advanced/metastatic breast cancer (LABC/MBC).
Lim J, Wong A, Ow S, Eng L, Sundar R, Chan G, Yadav K, Heong V, Tan D, Soo R, Chee C, Yong W, Goh B, Lee S. A phase Ib/II trial of lenvatinib (len) and letrozole (let) incorporating pharmacodynamics studies in postmenopausal women with hormone receptor positive (HR+) locally advanced/metastatic breast cancer (LABC/MBC). Journal Of Clinical Oncology 2019, 37: 1045-1045. DOI: 10.1200/jco.2019.37.15_suppl.1045.Peer-Reviewed Original ResearchDose-limiting toxicityDisease control ratePalmar-plantar erythrodysesthesiaDose reductionBreast cancerDose levelsMechanisms of endocrine resistanceRecommended phase 2 dosePhase 2 doseAdvanced/metastatic breast cancerHR+ breast cancerPhase Ib trialContinuous daily dosingSerial tumor biopsiesAnti-tumor activityStandard of careDose expansionG3 toxicityPrior CTPostmenopausal womenTumor biopsiesEndocrine resistanceDaily doseEstrogen receptorPreclinical studies