A randomized, open-label, Phase III clinical trial of nivolumab vs. therapy of investigator's choice in recurrent squamous cell carcinoma of the head and neck: A subanalysis of Asian patients versus the global population in checkmate 141.

A randomized, open-label, Phase III clinical trial of nivolumab vs. therapy of investigator's choice in recurrent squamous cell carcinoma of the head and neck: A subanalysis of Asian patients versus the global population in checkmate 141.

Oral Oncol. 2017 Oct;73:138-146

Authors: Kiyota N, Hasegawa Y, Takahashi S, Yokota T, Yen CJ, Iwae S, Shimizu Y, Hong RL, Goto M, Kang JH, Sum Kenneth Li W, Ferris RL, Gillison M, Namba Y, Monga M, Lynch M, Tahara M

Abstract
OBJECTIVES: To assess efficacy and safety of nivolumab versus investigator's choice of therapy (IC) in Asian patients with platinum-refractory recurrent or metastatic squamous cell carcinoma of the head and neck (SCCHN).
MATERIALS AND METHODS: Thirty-four patients from Japan, Taiwan, Hong Kong, and Korea received nivolumab 3mg/kg (n=23) every 2weeks or IC (n=11), as part of a global trial (n=361), until intolerable toxicity or disease progression. The primary endpoint was overall survival (OS).
RESULTS: Median OS was 9.5months (95% confidence interval [CI] 9.1-NR) with nivolumab and 6.2months (95% CI 2.6-NR) with IC. Seven (30.4%) patients receiving nivolumab and six (54.5%) receiving IC died. The hazard ratio (HR) for risk of death (nivolumab vs. IC) was 0.50 (95% CI 0.17-1.48). Median progression-free survival was 1.9months (95% CI 1.6-7.5) with nivolumab and 1.8months (95% CI 0.4-6.1) with IC (HR 0.57 [95% CI 0.25-1.33]). Objective response rates (complete+partial responses) were 26.1% (6/23 patients; 95% CI 10.2-48.4) for nivolumab and 0% (0/11 patients; 95% CI 0.0-28.5) for IC. Sixteen (69.6%) nivolumab-treated patients and 10 (90.9%) patients receiving IC had a treatment-related adverse event, most commonly decreased appetite (21.7%), pruritus, rash, and fatigue (17.4% each) with nivolumab, and nausea, stomatitis, and decreased appetite (27.3% each) with IC.
CONCLUSION: Nivolumab demonstrated a survival advantage compared with conventional treatments in Asian patients with platinum-refractory recurrent or metastatic SCCHN, and was well tolerated. Clinical trial registration NCT02105636.

PMID: 28939066 [PubMed - in process]

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