Table 5.
HER2 IHC score, n (%) | (n = 50) |
0 | 2 (4) |
1+ | 2 (4) |
2+ | 16 (32) |
3+ | 30 (60) |
FISH HER2 amplification, n (%) | (n = 47) |
Positive (≥ 2.0) | 43 (91) |
Borderline (1.8 to < 2.0) | 0 |
Negative (< 1.8) | 4 (9) |
EGFR IHC score, n (%) | (n = 49) |
0 | 34 (69) |
1+ | 4 (8) |
2+ | 10 (20) |
3+ | 1 (2) |
HER2 eligibility was determined at the local laboratory. One subject was non-evaluable for HER2 and EGFR
HER2 human epidermal growth factor receptor 2, IHC immunohistochemistry, FISH fluorescence in situ hybridization, EGFR epidermal growth factor receptor