Key Takeaways More on EXEL's STELLAR-303 Study on Zanzalintinib Zanzalintinib is a third-generation oral tyrosine kinase inhibitor that inhibits the activity of receptor tyrosine kinases implicated in cancer growth and spread, including VEGF receptors, MET, AXL and MER. The STELLAR-303 study met one of its two dual primary endpoints, demonstrating a statistically significant improvement in overall survival (OS) for the intent-to-treat (ITT) population when treated with zanzalintinib in combination with Tece ...