Table 4.
Responses rates (combined CR+PR) by type of EGFR mutation
| Source (reference) | EGFR Mutation | p-value* | ||
|---|---|---|---|---|
| deletion 19 | L858R | |||
| CR+PR/total (%) in 1st line therapy | Inoue (43) | 6/9 (67%) | 6/7 (86%) | 0.585 |
| Asahina (44) | 10/13 (77%) | 2/3 (67%) | 1 | |
| CR+PR/total (%) in mixed 1st subsequent lines of therapy | Sutani (45) | 15/20 (75%) | 6/7 (86%) | 1 |
| Yoshida (46) | 7/8 (87.5%) | 12/13 (92.3%) | 1 | |
| Sunaga (47) | 15/16 (94%) | 1/3 (33%) | 0.050 | |
| CR+PR/total (%) in the combined group | Total (99 patients) | 53/66 (80.3%) | 27/33 (81.8%) | 1 |
EGFR, epidermal growth factor receptor; CR, complete response; PR, partial response; SD, stable disease; PD, progressive
two-tailed probability by Fisher’s exact test