Abstract
Nivolumab and axitinib has recommended as a second-line treatment in patients with metastatic renal cell carcinoma (mRCC) after tyrosine kinase inhibitor treatment. In this study, overall survival (OS), treatment continuation, and the cost of nivolumab and axitinib-the second-line treatment agents for mRCC-were compared and examined. Herein, we retrospectively surveyed patients with pathologically confirmed mRCC, treated with nivolumab (n=9) or axitinib (n=16) at Ogaki Municipal Hospital (Ogaki, Japan) between January 2012 and May 2019. The treatment periods for the nivolumab- and axitinib-administered groups were 5.4 (range: 1.4-21.3) and 3.4 (range: 0.3-28.1) months, respectively (P=0.089). The postponement periods for the nivolumab- and axitinib-administered groups were 7 (range: 0-186) and 0 (range: 0-262) days, respectively, and the difference was statistically significant (P=0.008). The median OS for patients treated with nivolumab and axitinib was 12.3 (range: 1.5-25.5 months) and 9.2 (range: 2.2-55.0 months) months, respectively (P=0.633). The one-year cost estimates for axitinib and nivolumab in clinical practice were $60,694.2 and $86,544.4, respectively (P=0.017). We found that despite frequent interruptions in nivolumab administration and a longer postpaonement period for the nivolumab-administered group than for the axitinib-administered group, both groups exhibit comparable treatment duration and OS.
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