Table 1. Baseline characteristics.

Characteristic	Total (n=34)
Age, years
Median [range]	60 [37–72]
Sex, n (%)
Male	23 (67.6)
Female	11 (32.4)
ECOG PS, n (%)
0–1	25 (73.5)
2	9 (26.5)
Tumor histology, n (%)
Adenocarcinoma	22 (64.7)
Squamous	8 (23.5)
Other	4 (11.8)
Smoking status, n (%)
Current or former smoker	17 (50.0)
Never smoker	17 (50.0)
No. of prior systemic therapies, n (%)
1	8 (23.5)
2	15 (44.1)
>2	11 (32.4)
No. of organs with metastasis, n (%)
≤2	24 (70.6)
>2	10 (29.4)
Brain metastasis, n (%)
Yes	8 (23.5)
No	26 (76.5)
Liver metastasis, n (%)
Yes	9 (26.5)
No	25 (73.5)
Prior anti-angiogenesis therapy, n (%)
Yes	16 (47.1)
No	18 (52.9)

ECOG PS, Eastern Cooperative Oncology Group performance status.