What is the role of axitinib (Inlyta) in the treatment of renal cell carcinoma (RCC)?

Updated: Feb 19, 2021
  • Author: Kush Sachdeva, MD; Chief Editor: E Jason Abel, MD  more...
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Answer

Axitinib (Inlyta) inhibits tyrosine kinase receptors including VEGFR-1, VEGFR-2, and VEGFR-3. Axitinib is 50-450 times more potent than first-generation VEGF inhibitors in inhibiting those VEGF receptors. The FDA approved axitinib in January 2012 for treatment of advanced RCC after failure of one prior systemic therapy.

The approval was based on a single efficacy study, (AXIS trial), in which axitinib extended progression-free survival by 2 months more than sorafenib (6.7 mo vs 4.7 mo, P < 0.0001) and produced a superior objective response rate (19.4% vs 9.4%). [59] AXIS was a randomized, controlled, open-label, multicenter phase 3 trial in 723 patients with advanced renal cell carcinoma who had failed one previous therapy. Severe toxicity requiring discontinuation of therapy was less prevalent in the axitinib group (4% vs 8%). This study is the only published phase 3 head-to-head comparison of VEGF-targeted agents.


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