Among patients with metastatic renal cell carcinoma, progression-free survival was longer in those receiving tivozanib versus sorafenib as third- or fourth-line therapy, according to a study published online Dec. 3 in The Lancet Oncology.
Brian I. Rini, M.D., from the Cleveland Clinic Taussig Cancer Institute, and colleagues conducted an open-label randomized trial at 120 academic hospitals in 12 countries and enrolled patients older than 18 years with histologically or cytologically confirmed metastatic renal cell carcinoma and at least two previous systemic treatments, including at least one with a vascular endothelial growth factor receptor inhibitor. Patients were randomly assigned to either tivozanib 1.5 mg orally once daily in four-week cycles or sorafenib 400 mg orally twice daily on a continual basis (175 patients to each); patients were followed for a median of 19 months.
The researchers found that median progression-free survival was significantly longer with tivozanib than sorafenib (5.6 versus 3.9 months; hazard ratio, 0.73). Hypertension was the most common grade 3 or 4 treatment-related adverse event (20 and 14 percent of tivozanib- and sorafenib-treated patients, respectively). Serious treatment-related adverse events occurred in 11 percent of tivozanib and 10 percent of sorafenib patients. There were no reports of treatment-related deaths.
"These results support tivozanib as a treatment option for patients with recurrent and progressive renal cell carcinoma, including those who have progressed after previous immunotherapy," the authors write.
Several authors disclosed financial ties to pharmaceutical companies, including AVEO Oncology, which manufactures tivozanib and funded the study.
https://www.thelancet.com/journals/lanonc/article/PIIS1470-2045(19)30735-1/fulltext
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