Phase Ib/II Dose Expansion Study of Lenvatinib Combined with Letrozole in Postmenopausal Women with Hormone Receptor-Positive Breast Cancer.
Lim J, Wong A, Ow S, Ngoi N, Chan G, Ang Y, Chong W, Lim S, Lim Y, Lee M, Choo J, Tan H, Yong W, Soo R, Tan D, Chee C, Sundar R, Yadav K, Jain S, Wang L, Tai B, Goh B, Lee S. Phase Ib/II Dose Expansion Study of Lenvatinib Combined with Letrozole in Postmenopausal Women with Hormone Receptor-Positive Breast Cancer. Clinical Cancer Research 2022, 28: 2248-2256. PMID: 35363275, DOI: 10.1158/1078-0432.ccr-21-4179.Peer-Reviewed Original ResearchConceptsBreast cancerDose expansionEstrogen receptorHormone receptor-positive breast cancerPhase II dose expansionRecommended phase II doseReceptor-positive breast cancerCDK4/6 inhibitor therapyDose-expansion studyPaired tumor biopsiesPhase Ib/II trialPhase II doseVascular normalization indexTreated with lenvatinibDose of lenvatinibER+/HER2- breast cancerMetastatic breast cancerPreliminary antitumor activityEstrogen-responsive genesLenvatinib combinationII doseMetastatic settingInhibitor therapyMultikinase inhibitorTumor biopsies