期刊
EUROPEAN UROLOGY
卷 81, 期 3, 页码 274-282出版社
ELSEVIER
DOI: 10.1016/j.eururo.2021.09.016
关键词
Kidney cancer; Metastatic; Stereotactic body radiotherapy; Nivolumab; Abscopal effect
资金
- Bristol Meyer Squibb Italy
This study evaluated the efficacy and safety of stereotactic body radiotherapy (SBRT) in combination with nivolumab in second- and third-line metastatic renal cell carcinoma (mRCC) patients. The results showed that the combination treatment did not provide additional clinical benefits but was safe and showed a good response in the irradiated lesions.
Background: Nivolumab showed an overall survival (OS) benefit in pretreated metastatic renal cell carcinoma (mRCC). The role of stereotactic body radiotherapy (SBRT) in mRCC remains to be defined. Objective: Our aim was to evaluate the efficacy and safety of SBRT in combination with nivolumab in second- and third-line mRCC patients. Design, setting, and participants: The NIVES study was a phase II, single-arm, multicenter trial in patients with mRCC with measurable metastatic sites who progressed after antiangiogenic therapy, of whom at least one was suitable for SBRT. Intervention: The patients received SBRT to a lesion at a dose of 10 Gy in three fractions for 7 d from the first infusion of nivolumab. Nivolumab was given at an initial dose of 240 mg every 14 d for 6 mo and then 480 mg q4-weekly in responding patients. Outcome measurements and statistical analysis: We hypothesized that nivolumab plus SBRT improves the objective response rate (ORR) compared with nivolumab alone from 25% (derived from historical controls) to 40%. Secondary endpoints were progression- free survival (PFS), OS. disease control rate (DCR) of irradiated and nonirradiated metastases, and safety. Results and limitations: Sixty-nine patients were enrolled from July 2017 to March 2019. The ORR was 17% and the DCR was 55%. The median PFS was 5.6 mo (95% confidence interval [CI], 2.9-7.1) and median OS 20 mo (95% CI, 17-not reached). After 1.5 yr of follow-up. 23 patients died. The median time to treatment response was 2.8 mo and median duration of response was 14 mo. No new safety concerns arose. Conclusions: We did not find sufficient evidence to suggest that nivolumab in combination with SBRT provides an added benefit in pretreated mRCC patients; it should however be evaluated in patients with oligometastatic or oligoprogressive disease. Patient summary: Nivolumab in combination with stereotactic body radiotherapy does not provide evidence of increased outcomes in metastatic renal cell carcinoma patients. However this approach was safe and showed a good response of the irradiated lesions. (C) 2021 European Association of Urology. Published by Elsevier B.V. All rights reserved.
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