CANTATA: Randomized, international, double-blind study of CB-839 plus cabozantinib versus cabozantinib plus placebo in patients with metastatic renal cell carcinoma.
2019
TPS682Background: Glutamine metabolism is upregulated in renal cell carcinoma (RCC) and important for RCC tumor cell proliferation and survival. CB-839 is a first-in-clinic, potent, oral inhibitor of the mitochondrial enzyme glutaminase (GLS), which controls a critical step in tumor cell metabolism of glutamine. CB-839 demonstrated synergistic anti-tumor activity when combined with cabozantinib, a VEGFR2/MET/AXL inhibitor, in preclinical RCC models. In a phase 1 study cohort, CB-839 plus cabozantinib as 2L+ therapy showed encouraging safety and efficacy results, with 50% overall response rate (ORR; RECIST v1.1) and 100% disease control rate in 10 patients with clear cell advanced/metastatic RCC (mRCC). A randomized, double-blind study comparing CB-839 plus cabozantinib vs. cabozantinib plus placebo has been initiated in patients with clear cell mRCC. Methods: In this ongoing international, randomized, double-blind, multi-center study, enrollment is planned for ~300 patients with clear cell mRCC. To be eli...
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