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Table 1.

Immune response during the therapy

Patient number Dose of TS‐1 (mg/m2/day) Peptide Anti‐peptide cellular response Anti‐peptide IgG Best clinical response Follow up (M) Prognosis
Pre Post (sixth) Increase after vaccine Pre Post (sixth) Increase after vaccine
1 80 SART3 109–118 0 0 129 13 656 + PD  5 Dead
CypB 91–99 0 212 + 48 56
Lck 488–497 0 23 26 475 +
MRP3 1293–1302 0 153 + 29 40
2 80 SART3 302–310 0 275 + 113 2986 + SD 17 Alive
Lck 246–254 0 221 + 122 174
WHS 103–111 0 1253 + 212 250
HNR 140–148 0 0 114 115
3 80 Lck 486–494 0 222 + 696 1009 + PD 11 Dead
MRP3 1293–1302 0 0 144 301 +
PAP 213–221 0 0 317 4696 +
EZH2 291–299 0 0 400 10 329 +
4 40 SART3 109–118 15 188 + 356 9135 + PD 30 Alive
CEA 390–399 0 0 13 19
5 40 SART3 93–101 58 0 219 166 PD  5 Dead
Lck 486–494 89 0 209 165
MRP3 1293–1302 0 0 303 247
PSCA 76–84 60 0 144 120
6 40 SART3 109–118 0 60 + 543 103 PD  7 Dead
MRP3 1293–1302 0 0 224 142
PAP 213–221 0 0 819 266
CEA 425–433 9 0 195 67
7 20 MAP 294–302 0 0 104 1993 + SD  8 Dead
UBE 43–51 0 0 207 24 391 +
EIF 51–59 56 0 40 156 +
EGFR 479–488 0 0 112 276 +
8 20 UBE 43–51 0 0 580 20 163 + PD 15 Dead
PSA 170–178 729 0 499 990
HER2/neu 484–493 146 0 477 665
CEA 605–613 0 0 831 23 694 +
9  0 SART2 93–101 0 388 + 51 1649 + SD 25 Alive
SART3 109–118 0 0 594 481
Lck 488–497 0 0 100 361 +
MRP3 1293–1302 0 0 167 932 +
10  0 SART3 109–118 0 0 420 1838 + PD  5 Dead
MRP3 1293–1302 115 45 167 1399 +
CypB 91–99 314 0 119 779 +
PSA 248–257 160 0 124 149
11  0 Lck 422–430 0 172 + 120 115 SD 17 Alive
MAP 294–302 0 0 48 248 +
UBE 43–51 348 0 91 113
EIF 51–59 227 0 26 2462 +

Values indicate interferon (IFN)‐γ production of peptide‐stimulated peripheral blood mononuclear cells (PBMC) reactive to the corresponding peptide. An increase in IFN‐γ production after vaccination was judged positive when the level of IFN‐γ production was more than 50 pg/mL and showed an at least two‐fold increase after the sixth vaccination.

Values indicate the fluorescence intensity of IgG reactive to the corresponding peptide. An increase in fluorescence intensity after vaccination was judged positive when the level increased more than two‐fold after the sixth vaccination. PD, progressive disease; PR, partial response; SD, stable disease.