| Group | n | Response rate | Disease control rate (DCR) |
| EGFR (+) | 9 | 4 (44.5) | 6 (66.7) |
| EGFR (−) | 21 | 3 (14.3) | 3 (14.3) |
| χ2 |
| 3.203 | 4.983 |
| P |
| 0.096 | 0.035 |