Table 2.

Treatment details before immune checkpoint blockade therapy.

Patient	Surgery	Adjuvant chemotherapy	PFS since surgery (m)	No. of chemotherapy regimens	Chemotherapy regimens	PFS since following palliative chemotherapy (m)
1	Yes	Yes (GP)	19.4+	1	TC	15.7+
2	Yes	No	8.3	1	TC	10.6
3	No	No	NA	1	TC	5.6
4	No	No	NA	1	TC	4.2
5	No	No	NA	3	AC, DP, TF	9.3*, 9.7**

GP, gemcitabine plus cisplatin; PFS, progression-free survival, NA, not applicable; TC, paclitaxel plus carboplatin; AC, pemetrexed (Alimta) plus carboplatin; DP, docetaxel plus cisplatin; TF, paclitaxel plus fluorouracil; SD, stable disease; PR, partial remission.

^*PFS1 with AC regimen; ^**PFS2 with DP regimen.