Correlation between efficacy and PD-L1 expression or TIL scores
| ACC | Non-ACC | |||
| n=20 | NPR6m | n=27 | NPR6m | |
| PD-L1 positive (CPS <1) | 15 | 6 | 14 | 3 |
| PD-L1 negative (CPS ≥1) | 5 | 1 | 13 | 1 |
| TILs low (<10%) | 17 | 6 | 11 | 2 |
| TILs high (≥10%) | 3 | 1 | 16 | 2 |
ACC, adenoid cystic carcinoma; CPS, Combined Positive Score; NPR6m, non-progression rate at 6 months; TILs, tumour-infiltrating lymphocytes.