Table 2 Responses to pembrolizumab or placebo treatment
|  | Pembrolizumab (n = 19) | Placebo (n = 7) |
|---|---|---|
Objective response†| 3 (15.8%) | 0 (0%) |
Disease control rate‡ | 7 (36.8%) | 2 (28.6%) |
Best overall response | ||
 Complete response | 0 (0%) | 0 (0%) |
 Partial response | 3 (15.8%) | 0 (0%) |
 Stable disease | 4 (21.1%) | 2 (28.6%) |
 Progressive disease | 12 (63.2%) | 5 (71.4%) |