EXEL Stock Rises on Positive Data From Colorectal Cancer Study

Core Insights - Exelixis, Inc. (EXEL) shares increased by 7.4% following the announcement of positive results from the late-stage STELLAR-303 study [1][9] - The STELLAR-303 study demonstrated a statistically significant improvement in overall survival for patients treated with zanzalintinib in combination with Tecentriq compared to regorafenib [5][9] - Year-to-date, Exelixis shares have risen by 30.2%, contrasting with a 3.4% decline in the industry [2] Study Details - The STELLAR-303 study is a phase III global, multicenter, randomized, open-label trial involving 901 patients with previously non-MSI-high metastatic colorectal cancer [2][5] - The study's primary endpoints include overall survival in the intent-to-treat population and a subgroup without liver metastases [5][6] - Zanzalintinib is a third-generation oral tyrosine kinase inhibitor targeting receptor tyrosine kinases involved in cancer growth [4] Future Prospects - The trial will continue to analyze the second primary endpoint concerning overall survival in patients without liver metastases [6][9] - The positive results from the STELLAR-303 study enhance the likelihood of regulatory success for zanzalintinib [7] - Exelixis is actively working to diversify its oncology portfolio beyond its lead drug, Cabometyx, with zanzalintinib being developed for various advanced solid tumors [12][14] Collaboration and Market Position - Exelixis is collaborating with Merck to evaluate zanzalintinib in combination with Keytruda for head and neck squamous cell carcinoma [13] - Cabometyx remains a leading tyrosine kinase inhibitor for renal cell carcinoma, with strong demand bolstered by its combination with Opdivo [10][11] - Recent label expansions for Cabometyx are expected to further enhance sales [11]