Table II.

Tumor response.

Type of response	Total (n=53)	Non-SCC (n=44)	SCC (n=9)
CR	0	0	0
PR	6	4	2
SD	9	7	2
PD	37	32	5
NE	1	1	0
ORR, % (95% CI)	11.3 (4.3–23.0)	9.1 (2.5–21.7)	22.2 (2.8–60.0)
DCR, % (95% CI)	28.3 (16.8–42.3)	25.0 (13.2–40.3)	44.4 (13.7–78.8)

SCC, squamous cell carcinoma; non-SCC, adenocarcinoma and not otherwise specified non-small-cell lung cancer; CR, complete response; PR, partial response; SD, stable disease (a duration of ≥8 weeks was required for the definition of SD in this study); PD, progressive disease; NE, not evaluable; ORR, objective response rate; CI, confidence interval; DCR, disease control rate.