Ontology highlight
ABSTRACT: Purpose
The objective response rate (ORR) for single-agent anti-programmed death receptor 1 (anti-PD-1) therapy is modest in patients with metastatic or recurrent head and neck squamous cell carcinoma (HNSCC). We aimed to test whether radiotherapy may act synergistically with anti-PD-1 therapy to improve response through the abscopal effect.Patients and methods
We conducted a single-center, randomized, phase II trial of nivolumab (anti-PD-1 therapy) versus nivolumab plus stereotactic body radiotherapy (SBRT) in patients with metastatic HNSCC. Patients had at least two metastatic lesions: one that could be safely irradiated and one measurable by RECIST version 1.1. Patients were randomly assigned (1:1), stratified by human papillomavirus status, to nivolumab (3 mg/kg intravenously every 2 weeks) or nivolumab (same dose) plus SBRT (9 Gy × 3) to 1 lesion. The primary end point was ORR in nonirradiated lesions, which was assessed by RECIST in patients with at least one available set of on-treatment images; safety was assessed in a per-protocol population.Results
Between March 11, 2016, and June 22, 2018, 62 patients were randomly assigned to nivolumab (n = 30) or nivolumab plus SBRT (n = 32). There was no statistically significant ORR difference between arms (34.5% [95% CI, 19.9% to 52.7%] v 29.0% [95% CI, 16.1% to 46.6%]; P = .86). There was no significant difference in overall survival (P = .75), progression-free survival (P = .79), or response duration (P = .26). Grade 3-5 toxicities were similar (13.3% v 9.7%; P = .70).Conclusion
We found no improvement in response and no evidence of an abscopal effect with the addition of SBRT to nivolumab in unselected patients with metastatic HNSCC.
SUBMITTER: McBride S
PROVIDER: S-EPMC8462641 | biostudies-literature | 2021 Jan
REPOSITORIES: biostudies-literature
McBride Sean S Sherman Eric E Tsai C Jillian CJ Baxi Shrujal S Aghalar Jahan J Eng Juliana J Zhi Wanqing Iris WI McFarland Daniel D Michel Loren Scott LS Young Robert R Lefkowitz Robert R Spielsinger Daniel D Zhang Zhigang Z Flynn Jessica J Dunn Lara L Ho Alan A Riaz Nadeem N Pfister David D Lee Nancy N
Journal of clinical oncology : official journal of the American Society of Clinical Oncology 20200821 1
<h4>Purpose</h4>The objective response rate (ORR) for single-agent anti-programmed death receptor 1 (anti-PD-1) therapy is modest in patients with metastatic or recurrent head and neck squamous cell carcinoma (HNSCC). We aimed to test whether radiotherapy may act synergistically with anti-PD-1 therapy to improve response through the abscopal effect.<h4>Patients and methods</h4>We conducted a single-center, randomized, phase II trial of nivolumab (anti-PD-1 therapy) versus nivolumab plus stereota ...[more]