Study 181 overview
FOLFIRI ± panitumumab in 2
nd
-line
Treatment of mCRC
•
1. Peeters M, et al. J Clin Oncol 2010;28:4706−13;
2. Peeters M, et al. Clin Cancer Res 2015;21:5469‒79.
•
†
Primary analysis.
WT
RAS
= WT
KRAS
and
NRAS
exons 2, 3, 4.
•
Co-primary endpoint: PFS/OS
1,2
•
Prospective−retrospective
extended
RAS
analysis
2
–
RAS
ascertainment rate: 85%
1:1
FOLFIRI
(Q2W)
+
panitumumab 6 mg/kg
(Q2W)
FOLFIRI
(Q2W)
mCRC
(N = 1186)
WT
RAS
Panitumumab +
FOLFIRI
(n = 208)
FOLFIRI
(n = 213)
Median PFS, mo
†2
6.4
4.6
HR
(95% CI)
P-value
0.70
(0.54–0.91)
P = 0.007
Median OS, mo
†2
16.2
13.9
HR
(95% CI)
P-value
0.81
(0.63–1.03)
P = 0.08
ORR, %
†2
(95% CI)
(n = 204)
41
(34−48)
(n = 207)
10
(6−15)
AEs, %
Grade 3/4
Grade 5
(n = 207)
89.5
3.9
(n = 213)
72.5
6.1
R