CHICAGO – The oral multitargeted tyrosine kinase inhibitor cabozantinib confers an overall survival benefit to patients with previously treated renal cell carcinoma, compared with everolimus, according to the final survival analysis of the phase III METEOR trial.
An analysis of the 658 patients enrolled in the study revealed that “treatment with cabozantinib significantly improved overall survival, compared to everolimus. The median overall survival was 21.4 months in the cabozantinib group, compared to 16.5 months in the everolimus group,” Toni Choueiri, M.D., of the Dana-Farber Cancer Institute in Boston reported at the annual meeting of the American Society of Clinical Oncology.
”The hazard ratio of 0.66 does represent a 34% reduction in the rate of deaths,” he said.
Dr. Toni Choueiri
An overall survival benefit associated with cabozantinib was consistently observed in all prespecified groups including the groups stratified by Memorial Sloan Kettering Cancer Center (MSKCC) risk criteria, the number and duration of prior vascular endothelial growth factor receptor tyrosine kinase inhibitor therapies, and tumor MET status.
An analysis of the same 658 patients enrolled in the METEOR trial, presented at the Genitourinary Cancers Symposium in early 2016, indicated cabozantinib improved progression-free survival, compared with everolimus (7.4 months vs. 3.9 months, HR, 0.52; P less than .001).
Cabozantinib is the only agent to demonstrate a significant benefit in overall survival, progression-free survival, and overall response rate in a phase III trial in previously treated patients with advanced renal cell carcinoma, according to Dr. Choueiri. “Cabozantinib is an important new treatment option for these patients,” he said.
This study was funded by Exelixis. Dr. Choueiri reported serving in advisory roles and receiving research funding and honoraria from multiple companies.
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