A Phase Ii Trial Of Cabozantinib (Cabo) In Patients (Pts) With Castrate-Resistant Prostate Cancer (Crpc) Metastatic To Bone (Nct01428219).
JOURNAL OF CLINICAL ONCOLOGY(2013)
Abstract
TPS5094 Background: MET overexpression predicts prostate cancer invasion and bone metastasis; inhibition of MET/VEGF pathways has synergistic activity in CRPC (Knudsen et al. Adv Cancer Res 2004; Aftab et al. Clin Transl Oncol 2011). Cabo is a small molecule that inhibits multiple receptor tyrosine kinases, including MET and VEGFR2. A phase II randomized discontinuation trial of Cabo showed clinical activity in CRPC, including reduction of soft tissue lesions, prolongation of progression-free survival (PFS), resolution of bone scans, and reductions in bone turnover markers, pain and narcotic use (Smith et al, JCO 2013). To further define the activity of Cabo in pts with CRPC and bone metastases, we launched a phase II trial to characterize the effects of Cabo on bone metabolism and tumor activity in prostate cancer bone lesions. We hypothesize that the clinical activity of Cabo correlates with measurable pharmacodynamic effects on bone micro-environment. Methods: After informed consent, chemotherapy-naive...
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Key words
cabozantinib,prostate cancer,cabozantinib,metastatic,castrate-resistant
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