Objective Response Rate
        
        
          Nivolumab in R/M SCCHN After Platinum Therapy
        
        
          26
        
        
          Nivolumab
        
        
          (n = 240)
        
        
          Investigator’s Choice
        
        
          (n = 121)
        
        
          Objective response rate, n (%)
        
        
          32 (13.3)
        
        
          7 (5.8)
        
        
          95% CI
        
        
          9.3, 18.3
        
        
          2.4, 11.6
        
        
          Best overall response, n (%)
        
        
          Complete response
        
        
          6 (2.5)
        
        
          1 (0.8)
        
        
          Partial response
        
        
          26 (10.8)
        
        
          6 (5.0)
        
        
          Stable disease
        
        
          55 (22.9)
        
        
          43 (35.5)
        
        
          Progressive disease
        
        
          100 (41.7)
        
        
          42 (34.7)
        
        
          Not determined
        
        
          53 (22.1)
        
        
          29 (24.0)
        
        
          Time to response, mo
        
        
          Median (range)
        
        
          2.1 (1.8–7.4)
        
        
          2.0 (1.9–4.6)