Exelixis (EXEL) Faces a Three-Month Zanzalintinib Review Extension. Can the Data Support Approval?
Exelixis (EXEL) announced a 3-month FDA review extension for zanzalintinib, now targeting March 3, 2027. The FDA requested updated safety and efficacy data. The drug, combined with atezolizumab, aims to treat metastatic colorectal cancer. Exelixis' approval prospects hinge on the full STELLAR-303 study data, which showed a statistically significant survival benefit in the overall population but not in a key subgroup.



