Table 2.
Baseline characteristics and primary outcome measurements of the tested cohorts
| Training set further-line cetuximab N= 108 | FIRE-3 FOLFIRI + cetuximab N= 153 | FIRE-3 FOLFIRI + bevacizumab N= 168 | |
|---|---|---|---|
| median age, years (range) | 64 (35-110) | 64 (42-76) | 65 (31-76) |
| gender | |||
| female | 39.8% | 24.8% | 30.4% |
| male | 60.2% | 75.2% | 69.6% |
| ECOG PS (%) | |||
| 0 | 62.1% | 53.6% | 55.4% |
| 1 | 37.9% | 45.8% | 43.5% |
| 2 | 0.7% | 1.2% | |
| localization | |||
| midgut | N/A | 16.3% | 17.9% |
| hindgut | 80.4% | 78.5% | |
| unknown | 3.3% | 3.6% | |
| ORR | 20% | 77.7% | 60.7% |
| PFS (months) (95% CI) | 3.7 (2.8 – 4.6) | 10.5 (9.1 – 12.0) | 11.3 (10.1 – 12.5) |
| OS (months) (95% CI) | 10.5 (7.7 – 13.3) | 36.4 (27.7 – 45.1) | 27.7 (24.4 – 31.0) |
Legend: ORR = objective response rate; PFS = progression-free survival, OS = overall survival, 95% CI = 95% confidence interval