Table 1. Baseline characteristics of the participants.

Characteristics	Total (n=20)
Age, years, median (range)	54.5 (31.0–69.0)
Sex, male/female	12/8
ECOG PS
0	5
1	15
Tumor differentiation
Undifferentiated	1
Poorly differentiated	8
Moderate/poor differentiated	1
Moderate differentiated	6
N/A	4
Stage
III	2
IV	18
Prior chemotherapy lines
1	7
2	8
3	5
Metastatic lesions
≤2	12
>2	8

ECOG, Eastern Cooperative Oncology Group; N/A, not available.