Table 3.
Treatment | Gene status | PFS, months | OS, months | ORR, % | |
---|---|---|---|---|---|
FIRE-3 (n= 178) [54] | FOLFIRI + cetuximab | KRAS mutant | 7.5 vs. 10.1 | 20.3 vs. 20.6 | 38 vs. 51 |
vs. | p = 0.085 | HR = 1.09 | p = 0.097 | ||
FOLFIRI + bevacizumab | p = 0.60 | ||||
FIRE-3 (n= 592) [40] | FOLFIRI + cetuximab | KRAS wild-type | 10.0 vs. 10.3 | 28.7 vs. 25.0 | 62 vs. 58 |
vs. | p = 0.55 | HR = 0.77 | p = 0.183 | ||
FOLFIRI + bevacizumab | p = 0.017 | ||||
FIRE-3 (n = 400) [42] | FOLFIRI + cetuximab | all RAS wild-type | 10.3 vs. 10.2 | 33.1 vs. 25.0 | 66 vs. 58 |
vs. | p = 0.77 | HR = 0.697 | p = 0.92 | ||
FOLFIRI + bevacizumab | p = 0.0059 | ||||
CALGB (n = 1,137) [41] | FOLFOX/FOLFIRI + cetuximab | KRAS wild-type | 10.4 vs. 10.8 | 29.9 vs. 29.0 | 66 vs. 57 |
vs. | codons 12/13 | HR = 1.04 | HR = 0.925 | p = 0.02 | |
FOLFOX/FOLFIRI + bevacizumab | p = 0.55 | p = 0.34 | |||
CALGB (n = 526) [43] | FOLFOX/FOLFIRI + cetuximab | all RAS wild-type | 11.4 vs. 11.3 | 32.0 vs. 31.2 | 69 vs. 54 |
vs. | HR = 1.1 | HR = 0.9 | p < 0.01 | ||
FOLFOX/FOLFIRI + bevacizumab | p = 0.31 | p = 0.40 | |||
PEAK [55] | FOLFOX + panitumumab | KRAS wild-type | 10.9 vs. 10.1 | 34.2 vs. 24.3 | 58 vs. 54 |
vs. | exon 2 | HR = 0.87 | HR = 0.62 | p = n.s. | |
FOLFOX + bevacizumab | p = 0.353 | p = 0.009 | |||
all RAS wild-type | HR = 0.65 | 41.3 vs. 28.9 | |||
p = 0.029 | HR = 0.63 | ||||
p = 0.058 |
n.s. = Not significant.