EGFR mutation positive | ||||||||
---|---|---|---|---|---|---|---|---|
Low PCV | High PCV | |||||||
(< 2.2 ng/ml) (n= 72) | (≥ 2.2 ng/ml) (n= 49) | |||||||
Gefitinib | Erlotinib | Gefitinib | Erlotinib | |||||
No. | % | No. | % | No. | % | No. | % | |
First-line | 20 | 28 | 5 | 7 | 23 | 47 | 2 | 4 |
Second-line | 21 | 29 | 11 | 15 | 14 | 29 | 8 | 16 |
Third-line | 9 | 12 | 6 | 8 | 3 | 6 | 4 | 8 |
Further-line | 2 | 3 | 14 | 20 | 2 | 4 | 4 | 8 |
Unadministered | 20 | 28 | 36 | 50 | 7 | 14 | 31 | 63 |