Phase I study of AMG 509, a STEAP1 x CD3 T-cell recruiting XmAb 2+1 immune therapy, in patients with metastatic castration-resistant prostate cancer (mCRPC).
Kelly W, Pook D, Appleman L, Waterhouse D, Horvath L, Edenfield W, Matsubara N, Danila D, Aggarwal R, Petrylak D, Sartor A, Sumey C, Adra N, Armstrong A, Cheng F, Stieglmaier J, Kouros-Mehr H, Dorff T. Phase I study of AMG 509, a STEAP1 x CD3 T-cell recruiting XmAb 2+1 immune therapy, in patients with metastatic castration-resistant prostate cancer (mCRPC). Journal Of Clinical Oncology 2021, 39: tps183-tps183. DOI: 10.1200/jco.2021.39.6_suppl.tps183.Peer-Reviewed Original ResearchMetastatic castration-resistant prostate cancerFirst doseImmune therapyProstate cancerECOG performance status 0Prostate-specific antigen (PSA) responseCastration-resistant prostate cancerT cell-mediated lysisDose-expansion phasePerformance status 0Phase 2 doseObjective tumor responseT effector cellsASCO Annual MeetingTotal serum testosteroneLogistic regression modelsCell surface antigensTransmembrane epithelial antigenTumor cell responseCNS metastasisLeptomeningeal diseaseRECIST 1.1Status 0Taxane regimensHormonal therapy