% of Patients
0
10
20
30
40
50
60
70
80
Genotype 1
Genotype 2, 3
37%
21%
46%
61%
45%
76%
Sustained Virologic
Response by Genotype
(ITT Population)
PEG-IFN a-2a + Placebo
IFN a-2b + RBV
PEG-IFN a-2a + RBV
P = 0.001
P = 0.054
P = 0.008
P = 0.001
P = 0.001
P = 0.016
Fried MW et al. N Engl J Med. 2002..