Table 2. Patient responses to immunotherapy.

Efficacy results	Immunotherapy (n=38)
	First line (n=16, 42%)	Second line (n=11, 29%)	Third or later lines (n=11, 29%)
Best response, n (%)
Partial response	8 (50.0)	5 (45.4)	1 (9.1)
Stable disease	8 (50.0)	2 (18.2)	4 (36.4)
Progression	0 (0.0)	4 (36.4)	6 (54.5)
Overall response rate, %	50.0%	45.5%	9.1%
PFS (months), median (95% CI)	10.7 (8.2–13.2)	3.4 (2.1–4.7)	2.1 (1.0–3.2)
OS (months), median (95% CI)	Not reached	Not reached	Not reached

PFS, progression-free survival; OS, overall survival; CI, confidence interval.