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Follow-up duration calculated as time from randomization to the date of death or the database cutoff date, whichever was earliest
| Follow-up duration | Pembrolizumab group | Placebo group |
|---|---|---|
|
| ||
| Intention-to-treat population | N=217 | N=217 |
| Median,* months | 8.4 | 7.7 |
| Range, months | 0.1–19.0 | 0.5–17.9 |
| Efficacy population | N=133 | N=131 |
| Median,* months | 11.1 | 10.4 |
| Range, months | 2.2–19.0 | 0.5–17.9 |
Medians were calculated using the observation time method.
