Exelixis Announces Detailed Results from Phase 3 STELLAR-303 Pivotal Trial Evaluating Zanzalintinib in Combination with an Immune Checkpoint Inhibitor in Metastatic Colorectal Cancer Presented at ESMO 2025 and Published in The Lancet

Core Insights - Exelixis, Inc. announced detailed results from the STELLAR-303 trial, which evaluated zanzalintinib in combination with atezolizumab against regorafenib in patients with previously treated non-MSI-high metastatic colorectal cancer [1] Group 1 - The study met one of its dual primary endpoints, showing a 20% reduction in the risk of death with the combination treatment [1]