Table 3 Clinical outcome according to pEGFR immunohistochemistry
pEGFR detectable | pEGFR non detectable | P value | |
|---|---|---|---|
Overall response rate (CR and PR) | 31% | 92% | 0.004* |
Clinical benefit rate (CR, PR and SD) | 62% | 92% | 0.160* |
Median time to progression | 121 days | 291 days | 0.018** |
Median overall survival | 285 days | 490 days | 0.619** |