Table 1.

Response and survival according to PD-L1 status.

	PD-L1 positive (n = 63)	PD-L1 negative (n = 76)
Objective response (n, total)	15	10
ORR, rate (95% CI)	24% (14–36)	13% (7–23)
Median PFS, weeks (95% CI)	11.9 (6.1–18.0)	6.1 (5.9–8.0)
PFS at 6 months, rate (95% CI)	37% (25–49)	16 (9–26)
Median OS, months (95% CI)	8.2 (5.7–13.7)	6.2 (4.3–14.0)
OS at 6 months, rate (95% CI)	59% (45–70)	51% (39–62)

CI, confidence interval; ORR, objective response rate; OS, overall survival; PD-L1, programmed cell-death ligand 1; PFS, progression-free survival.