| n = 10 | |
| Total chemotherapy cycle, median (range) | 3.5 (1 - 9) |
| Unexpected administration, n (%) | 2 (20) |
| Days, mean (range) | 5 days (5) |
| Reason | Paralytic ileus Cerebral infarction |
| Dose reduction, n (%) | 4 (40) |
| S-1, CDDP | 2 (20) |
| S-1 alone | 1 (10) |
| CDDP alone | 1 (10) |
| Extension, n (%) | 1 (10) |
| Reason | Leukopenia |
| Interruption, n (%) | 4 (40) |
| Reason | PD 1 AE 3 |