Vantictumab (OMP-18R5) is a fully human IgG2 monoclonal antibody. Vantictumab inhibits Wnt pathway signaling by binding to FZD1/2/5/7/8 receptors. Vantictumab is being studied against cancers such as metastatic HER2-negative breast cancer and metastatic pancreatic adenocarcinoma.
References:
[1]. Davis SL, et al. A phase 1b dose escalation study of Wnt pathway inhibitor vantictumab in combination with nab-paclitaxel and gemcitabine in patients with previously untreated metastatic pancreatic cancer. Invest New Drugs. 2020 Jun;38(3):821-830.
[2]. Diamond JR, et al. Phase Ib clinical trial of the anti-frizzled antibody vantictumab (OMP-18R5) plus paclitaxel in patients with locally advanced or metastatic HER2-negative breast cancer. Breast Cancer Res Treat. 2020 Nov;184(1):53-62.