Trial Outcomes & Findings for Safety and Efficacy of Boceprevir in Previously Untreated Subjects With Chronic Hepatitis C Genotype 1 (Study P05216AM2) (COMPLETED) (NCT NCT00705432)

NCT ID: NCT00705432

Last Updated: 2017-04-07

Results Overview

Previously untreated adults with CHC genotype 1 were treated with the assigned study medication. Participants who had undetectable plasma HCV-RNA at FW 24 had achieved SVR. SVR rate is the percent of participants achieving SVR. HCV-RNA was detected by a nucleic acid amplification test and the limit of detection for this assay is 9.3 IU/mL. If a participant was missing data at FW 24 after having had undetectable HCV-RNA at FW 12, the participant was to be considered to have SVR.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

1472 participants

Primary outcome timeframe

At Follow-up Week (FW) 24

Results posted on

2017-04-07

Participant Flow

1472 participants were enrolled in this study.

373 participants were screened but not randomized. 1099 participants were randomized. Only 1097 received at least one dose of PegIntron (PEG) + Ribavirin (RBV) (lead-in treatment).

Participant milestones

Participant milestones
Measure
Cohort I - 1. Placebo + PEG + RBV
Cohort I (White participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort I - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort I - 3. Boceprevir + PEG + RBV - 44 Weeks
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 1. Placebo + PEG + RBV
Cohort II (Black participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort II - 3. Boceprevir + PEG + RBV - 44 Weeks
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Treatment Period
STARTED
311
316
311
52
52
55
Treatment Period
STARTED BOCEPREVIR/PLACEBO
297
303
299
47
47
55
Treatment Period
COMPLETED
148
205
190
11
24
25
Treatment Period
NOT COMPLETED
163
111
121
41
28
30
Follow-up Period (Upto Week 72)
STARTED
278
295
291
42
44
53
Follow-up Period (Upto Week 72)
COMPLETED
207
252
266
28
38
46
Follow-up Period (Upto Week 72)
NOT COMPLETED
71
43
25
14
6
7

Reasons for withdrawal

Reasons for withdrawal
Measure
Cohort I - 1. Placebo + PEG + RBV
Cohort I (White participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort I - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort I - 3. Boceprevir + PEG + RBV - 44 Weeks
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 1. Placebo + PEG + RBV
Cohort II (Black participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort II - 3. Boceprevir + PEG + RBV - 44 Weeks
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Treatment Period
Adverse Event
45
37
51
12
8
9
Treatment Period
Treatment failure
92
42
33
25
13
14
Treatment Period
Non medical reason
26
32
37
4
7
7
Follow-up Period (Upto Week 72)
Adverse Event
2
1
1
0
0
0
Follow-up Period (Upto Week 72)
Non medical reason
69
42
24
14
6
7

Baseline Characteristics

Safety and Efficacy of Boceprevir in Previously Untreated Subjects With Chronic Hepatitis C Genotype 1 (Study P05216AM2) (COMPLETED)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Cohort I - 1. Placebo + PEG + RBV
n=311 Participants
Cohort I (White participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort I - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
n=316 Participants
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort I - 3. Boceprevir + PEG + RBV - 44 Weeks
n=311 Participants
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 1. Placebo + PEG + RBV
n=52 Participants
Cohort II (Black participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
n=52 Participants
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort II - 3. Boceprevir + PEG + RBV - 44 Weeks
n=55 Participants
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Total
n=1097 Participants
Total of all reporting groups
Age, Customized
<40 years
51 participants
n=93 Participants
45 participants
n=4 Participants
49 participants
n=27 Participants
6 participants
n=483 Participants
3 participants
n=36 Participants
4 participants
n=10 Participants
158 participants
n=115 Participants
Age, Customized
>= 40 and <65 years
246 participants
n=93 Participants
261 participants
n=4 Participants
255 participants
n=27 Participants
45 participants
n=483 Participants
47 participants
n=36 Participants
51 participants
n=10 Participants
905 participants
n=115 Participants
Age, Customized
>=65 years
14 participants
n=93 Participants
10 participants
n=4 Participants
7 participants
n=27 Participants
1 participants
n=483 Participants
2 participants
n=36 Participants
0 participants
n=10 Participants
34 participants
n=115 Participants
Sex: Female, Male
Female
140 Participants
n=93 Participants
116 Participants
n=4 Participants
123 Participants
n=27 Participants
17 Participants
n=483 Participants
23 Participants
n=36 Participants
22 Participants
n=10 Participants
441 Participants
n=115 Participants
Sex: Female, Male
Male
171 Participants
n=93 Participants
200 Participants
n=4 Participants
188 Participants
n=27 Participants
35 Participants
n=483 Participants
29 Participants
n=36 Participants
33 Participants
n=10 Participants
656 Participants
n=115 Participants

PRIMARY outcome

Timeframe: At Follow-up Week (FW) 24

Population: Full analysis set (FAS). All randomized participants who received at least one dose of any study medication (PEG, RBV or boceprevir).

Previously untreated adults with CHC genotype 1 were treated with the assigned study medication. Participants who had undetectable plasma HCV-RNA at FW 24 had achieved SVR. SVR rate is the percent of participants achieving SVR. HCV-RNA was detected by a nucleic acid amplification test and the limit of detection for this assay is 9.3 IU/mL. If a participant was missing data at FW 24 after having had undetectable HCV-RNA at FW 12, the participant was to be considered to have SVR.

Outcome measures

Outcome measures
Measure
Cohort I - 1. Placebo + PEG + RBV
n=311 Participants
Cohort I (White participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort I - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
n=316 Participants
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort I - 3. Boceprevir + PEG + RBV - 44 Weeks
n=311 Participants
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 1. Placebo + PEG + RBV
n=52 Participants
Cohort II (Black participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
n=52 Participants
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort II - 3. Boceprevir + PEG + RBV - 44 Weeks
n=55 Participants
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Sustained Virologic Response (SVR) Rate
40.2 Percentage of participants
66.8 Percentage of participants
68.5 Percentage of participants
23.1 Percentage of participants
42.3 Percentage of participants
52.7 Percentage of participants

SECONDARY outcome

Timeframe: At FW 24

Population: Modified intent-to-treat set (mITT). All randomized participants who received at least one dose of boceprevir or placebo.

Previously untreated adults with CHC genotype 1 were treated with the assigned study medication. Participants who had undetectable plasma HCV-RNA at FW 24 had achieved SVR. SVR rate was the percentage of participants treated with at least one dose of boceprevir or placebo who had achieved SVR. HCV-RNA in participant's plasma samples was detected by a nucleic acid amplification assay with a limit of detection of 9.3 IU/mL. If a participant was missing data at FW 24 after having had undetectable HCV-RNA at FW 12, the participant was to be considered to have a SVR.

Outcome measures

Outcome measures
Measure
Cohort I - 1. Placebo + PEG + RBV
n=297 Participants
Cohort I (White participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort I - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
n=303 Participants
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort I - 3. Boceprevir + PEG + RBV - 44 Weeks
n=299 Participants
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 1. Placebo + PEG + RBV
n=47 Participants
Cohort II (Black participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
n=47 Participants
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort II - 3. Boceprevir + PEG + RBV - 44 Weeks
n=55 Participants
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Sustained Virologic Response (SVR) Rate in Participants Treated With Study Drug (Boceprevir or Placebo)
42.1 Percentage of participants
69.6 Percentage of participants
71.2 Percentage of participants
25.5 Percentage of participants
46.8 Percentage of participants
52.7 Percentage of participants

SECONDARY outcome

Timeframe: At FW 12 and at 72 weeks after randomization

Population: Full analysis set (FAS). All randomized participants who received at least one dose of any study medication (PEG, RBV or boceprevir).

Previously untreated adults with CHC genotype 1 were treated with the assigned study medication. The number of participants who had undetectable plasma HCV-RNA at FW 12, and 72 weeks after randomization are reported. HCV-RNA was detected by a nucleic acid amplification test and the limit of detection for this assay is 9.3 IU/mL.

Outcome measures

Outcome measures
Measure
Cohort I - 1. Placebo + PEG + RBV
n=311 Participants
Cohort I (White participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort I - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
n=316 Participants
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort I - 3. Boceprevir + PEG + RBV - 44 Weeks
n=311 Participants
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 1. Placebo + PEG + RBV
n=52 Participants
Cohort II (Black participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
n=52 Participants
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort II - 3. Boceprevir + PEG + RBV - 44 Weeks
n=55 Participants
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Number of Participants With Undetectable HCV-RNA at Follow-up Week 12 and at 72 Weeks After Randomization.
At follow-up week 12
127 Participants
209 Participants
209 Participants
11 Participants
21 Participants
29 Participants
Number of Participants With Undetectable HCV-RNA at Follow-up Week 12 and at 72 Weeks After Randomization.
72 weeks after randomization
120 Participants
194 Participants
205 Participants
11 Participants
20 Participants
27 Participants

SECONDARY outcome

Timeframe: At Treatment Week 2, 4, 8, 12, 16, or 20

Population: Full analysis set (FAS). All randomized participants who received at least one dose of any study medication (PEG, RBV or boceprevir).

Early virologic response was defined as undetectable HCV-RNA at in participants by treatment week 2, 4, 8, 12, 16, or 20. HCV-RNA in participant's plasma samples was detected by a nucleic acid amplification assay with a limit of detection of 9.3 IU/mL.

Outcome measures

Outcome measures
Measure
Cohort I - 1. Placebo + PEG + RBV
n=311 Participants
Cohort I (White participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort I - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
n=316 Participants
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort I - 3. Boceprevir + PEG + RBV - 44 Weeks
n=311 Participants
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 1. Placebo + PEG + RBV
n=52 Participants
Cohort II (Black participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
n=52 Participants
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort II - 3. Boceprevir + PEG + RBV - 44 Weeks
n=55 Participants
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Number of Participants With Early Virologic Response (Undetectable HCV-RNA at Treatment Week 2, 4, 8, 12, 16, or 20)
Treatment week 2
8 Participants
11 Participants
8 Participants
0 Participants
1 Participants
0 Participants
Number of Participants With Early Virologic Response (Undetectable HCV-RNA at Treatment Week 2, 4, 8, 12, 16, or 20)
Treatment week 4
28 Participants
18 Participants
20 Participants
2 Participants
1 Participants
0 Participants
Number of Participants With Early Virologic Response (Undetectable HCV-RNA at Treatment Week 2, 4, 8, 12, 16, or 20)
Treatment week 8
56 Participants
190 Participants
182 Participants
4 Participants
18 Participants
22 Participants
Number of Participants With Early Virologic Response (Undetectable HCV-RNA at Treatment Week 2, 4, 8, 12, 16, or 20)
Treatment week 12
108 Participants
237 Participants
231 Participants
10 Participants
25 Participants
33 Participants
Number of Participants With Early Virologic Response (Undetectable HCV-RNA at Treatment Week 2, 4, 8, 12, 16, or 20)
Treatment week 16
138 Participants
231 Participants
237 Participants
15 Participants
26 Participants
36 Participants
Number of Participants With Early Virologic Response (Undetectable HCV-RNA at Treatment Week 2, 4, 8, 12, 16, or 20)
Treatment week 20
157 Participants
231 Participants
231 Participants
15 Participants
27 Participants
32 Participants

SECONDARY outcome

Timeframe: At Treatment Week 4, 8, 12, 16, 20

Population: Participants that had undetectable HCV RNA for the treatment weeks 4, 8, 12, 16, and 20.

Participants with early virologic response were those who had undetectable HCV-RNA by treatment week 4, 8, 12, 16, or 20. Participants who had undetectable plasma HCV-RNA at FW 24 had SVR. The number of participants with early virologic response that also achieved SVR is reported. HCV-RNA in participant's plasma samples was detected by a nucleic acid amplification assay with a limit of detection of 9.3 IU/mL.

Outcome measures

Outcome measures
Measure
Cohort I - 1. Placebo + PEG + RBV
n=311 Participants
Cohort I (White participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort I - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
n=316 Participants
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort I - 3. Boceprevir + PEG + RBV - 44 Weeks
n=311 Participants
Cohort I (White participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 1. Placebo + PEG + RBV
n=52 Participants
Cohort II (Black participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Cohort II - 2. Boceprevir + PEG + RBV - 24 Weeks (RGT)
n=52 Participants
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
Cohort II - 3. Boceprevir + PEG + RBV - 44 Weeks
n=55 Participants
Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Number of Participants With Early Virologic Response (Undetectable HCV-RNA at Treatment Week 4, 8, 12, 16, or 20) Who Achieved SVR
Treatment week 4 (n=28, 18, 20, 2, 1, 0)
27 Participants
16 Participants
18 Participants
2 Participants
1 Participants
0 Participants
Number of Participants With Early Virologic Response (Undetectable HCV-RNA at Treatment Week 4, 8, 12, 16, or 20) Who Achieved SVR
Treatment week 8 (n=56, 190, 182, 4, 18, 22)
48 Participants
170 Participants
166 Participants
3 Participants
14 Participants
18 Participants
Number of Participants With Early Virologic Response (Undetectable HCV-RNA at Treatment Week 4, 8, 12, 16, or 20) Who Achieved SVR
Treatment week 12 (n=108, 237, 231, 10, 25, 33)
90 Participants
205 Participants
204 Participants
7 Participants
19 Participants
26 Participants
Number of Participants With Early Virologic Response (Undetectable HCV-RNA at Treatment Week 4, 8, 12, 16, or 20) Who Achieved SVR
Treatment week 16 (n=138, 231, 237, 15, 26, 36)
106 Participants
205 Participants
210 Participants
12 Participants
20 Participants
26 Participants
Number of Participants With Early Virologic Response (Undetectable HCV-RNA at Treatment Week 4, 8, 12, 16, or 20) Who Achieved SVR
Treatment week 20 (n=157, 231, 231, 15, 27, 32)
118 Participants
201 Participants
208 Participants
12 Participants
21 Participants
26 Participants

Adverse Events

PEG + RBV

Serious events: 31 serious events
Other events: 353 other events
Deaths: 0 deaths

BOCEPREVIR + PEG + RBV - 24 WEEKS

Serious events: 42 serious events
Other events: 365 other events
Deaths: 0 deaths

BOCEPRIVIR + PEG + RBV - 44 WEEKS

Serious events: 45 serious events
Other events: 363 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
PEG + RBV
n=363 participants at risk
Cohort I (White participants) and Cohort II (Black participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
BOCEPREVIR + PEG + RBV - 24 WEEKS
n=368 participants at risk
Cohort I (White participants) and Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
BOCEPRIVIR + PEG + RBV - 44 WEEKS
n=366 participants at risk
Cohort I (White participants) and Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Blood and lymphatic system disorders
ANAEMIA
0.28%
1/363 • Number of events 1
0.82%
3/368 • Number of events 5
1.1%
4/366 • Number of events 7
Blood and lymphatic system disorders
APLASIA PURE RED CELL
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Blood and lymphatic system disorders
LEUKOCYTOSIS
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Blood and lymphatic system disorders
LEUKOPENIA
0.00%
0/363
0.00%
0/368
0.55%
2/366 • Number of events 2
Blood and lymphatic system disorders
NEUTROPENIA
0.00%
0/363
0.27%
1/368 • Number of events 1
0.55%
2/366 • Number of events 3
Blood and lymphatic system disorders
PANCYTOPENIA
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Blood and lymphatic system disorders
THROMBOCYTOPENIA
0.00%
0/363
0.00%
0/368
0.82%
3/366 • Number of events 3
Cardiac disorders
ACUTE MYOCARDIAL INFARCTION
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Cardiac disorders
ATRIAL FIBRILLATION
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Cardiac disorders
ATRIAL FLUTTER
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Cardiac disorders
CARDIAC ARREST
0.28%
1/363 • Number of events 1
0.00%
0/368
0.27%
1/366 • Number of events 1
Cardiac disorders
CARDIO-RESPIRATORY ARREST
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Cardiac disorders
CORONARY ARTERY DISEASE
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Cardiac disorders
CORONARY ARTERY OCCLUSION
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Cardiac disorders
HYPERTROPHIC CARDIOMYOPATHY
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Cardiac disorders
MYOCARDIAL INFARCTION
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Cardiac disorders
TACHYCARDIA
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Ear and labyrinth disorders
DEAFNESS
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Endocrine disorders
HYPOTHYROIDISM
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Eye disorders
CONJUNCTIVITIS
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Eye disorders
OPTIC NEUROPATHY
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Eye disorders
PAPILLOEDEMA
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Gastrointestinal disorders
ABDOMINAL PAIN
0.28%
1/363 • Number of events 1
0.27%
1/368 • Number of events 1
0.27%
1/366 • Number of events 1
Gastrointestinal disorders
ABDOMINAL PAIN LOWER
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Gastrointestinal disorders
COLITIS
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Gastrointestinal disorders
COLONIC POLYP
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Gastrointestinal disorders
GASTRITIS
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Gastrointestinal disorders
GASTROINTESTINAL HAEMORRHAGE
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Gastrointestinal disorders
GASTROOESOPHAGEAL REFLUX DISEASE
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Gastrointestinal disorders
HAEMATEMESIS
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Gastrointestinal disorders
HAEMORRHOIDAL HAEMORRHAGE
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Gastrointestinal disorders
HAEMORRHOIDS
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Gastrointestinal disorders
MALLORY-WEISS SYNDROME
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Gastrointestinal disorders
NAUSEA
0.28%
1/363 • Number of events 1
0.00%
0/368
0.27%
1/366 • Number of events 1
Gastrointestinal disorders
PANCREATITIS
0.55%
2/363 • Number of events 2
0.00%
0/368
0.00%
0/366
Gastrointestinal disorders
PANCREATITIS ACUTE
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Gastrointestinal disorders
UMBILICAL HERNIA
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Gastrointestinal disorders
VOMITING
0.28%
1/363 • Number of events 1
0.00%
0/368
0.55%
2/366 • Number of events 2
General disorders
CHEST DISCOMFORT
0.00%
0/363
0.00%
0/368
0.55%
2/366 • Number of events 2
General disorders
CHEST PAIN
0.00%
0/363
0.27%
1/368 • Number of events 1
1.1%
4/366 • Number of events 4
General disorders
DEATH
0.55%
2/363 • Number of events 2
0.00%
0/368
0.00%
0/366
General disorders
FATIGUE
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
General disorders
GENERAL PHYSICAL HEALTH DETERIORATION
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
General disorders
MALAISE
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
General disorders
PYREXIA
0.55%
2/363 • Number of events 2
0.27%
1/368 • Number of events 1
0.82%
3/366 • Number of events 3
Hepatobiliary disorders
CHOLECYSTITIS
0.28%
1/363 • Number of events 1
0.00%
0/368
0.27%
1/366 • Number of events 1
Hepatobiliary disorders
CHOLECYSTITIS ACUTE
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Hepatobiliary disorders
CHOLELITHIASIS
0.55%
2/363 • Number of events 2
0.00%
0/368
0.00%
0/366
Hepatobiliary disorders
CHOLELITHIASIS OBSTRUCTIVE
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Immune system disorders
SARCOIDOSIS
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 2
Infections and infestations
ABSCESS
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Infections and infestations
ABSCESS LIMB
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Infections and infestations
APPENDICITIS
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Infections and infestations
ATYPICAL MYCOBACTERIAL INFECTION
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Infections and infestations
BACTERAEMIA
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Infections and infestations
BRONCHITIS
0.00%
0/363
0.54%
2/368 • Number of events 2
0.00%
0/366
Infections and infestations
CELLULITIS
0.28%
1/363 • Number of events 1
0.27%
1/368 • Number of events 1
0.55%
2/366 • Number of events 2
Infections and infestations
DIVERTICULITIS
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Infections and infestations
ENTEROCOLITIS INFECTIOUS
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Infections and infestations
EPIGLOTTITIS
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Infections and infestations
GASTROENTERITIS
0.00%
0/363
0.54%
2/368 • Number of events 2
0.55%
2/366 • Number of events 2
Infections and infestations
INFECTED BITES
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Infections and infestations
INJECTION SITE INFECTION
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Infections and infestations
PERIRECTAL ABSCESS
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Infections and infestations
PNEUMONIA
0.28%
1/363 • Number of events 1
0.82%
3/368 • Number of events 4
0.27%
1/366 • Number of events 1
Infections and infestations
PNEUMONIA PNEUMOCOCCAL
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Infections and infestations
SCROTAL ABSCESS
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Infections and infestations
SINUSITIS
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Infections and infestations
STAPHYLOCOCCAL INFECTION
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Infections and infestations
TRACHEOBRONCHITIS
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Infections and infestations
UPPER RESPIRATORY TRACT INFECTION
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Injury, poisoning and procedural complications
ACCIDENTAL OVERDOSE
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Injury, poisoning and procedural complications
ALCOHOL POISONING
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Injury, poisoning and procedural complications
OVERDOSE
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 2
Injury, poisoning and procedural complications
POST PROCEDURAL COMPLICATION
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Injury, poisoning and procedural complications
ROAD TRAFFIC ACCIDENT
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Injury, poisoning and procedural complications
SPINAL FRACTURE
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Injury, poisoning and procedural complications
TRANSFUSION REACTION
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Injury, poisoning and procedural complications
VASCULAR PSEUDOANEURYSM
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Injury, poisoning and procedural complications
WOUND DEHISCENCE
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Investigations
WHITE BLOOD CELL COUNT DECREASED
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Metabolism and nutrition disorders
DEHYDRATION
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Metabolism and nutrition disorders
HYPOKALAEMIA
0.00%
0/363
0.54%
2/368 • Number of events 2
0.00%
0/366
Metabolism and nutrition disorders
HYPONATRAEMIA
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Musculoskeletal and connective tissue disorders
BACK PAIN
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Musculoskeletal and connective tissue disorders
FLANK PAIN
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Musculoskeletal and connective tissue disorders
GROIN PAIN
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Musculoskeletal and connective tissue disorders
INTERVERTEBRAL DISC PROTRUSION
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Musculoskeletal and connective tissue disorders
MUSCULOSKELETAL CHEST PAIN
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
BLADDER CANCER
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
BREAST CANCER
0.28%
1/363 • Number of events 1
0.00%
0/368
0.27%
1/366 • Number of events 1
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
COLON CANCER
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
HEPATIC NEOPLASM MALIGNANT
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
LUNG ADENOCARCINOMA
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
PANCREATIC CARCINOMA
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
PROSTATE CANCER
0.28%
1/363 • Number of events 1
0.27%
1/368 • Number of events 1
0.00%
0/366
Nervous system disorders
CAROTID ARTERY STENOSIS
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Nervous system disorders
CEREBRAL ISCHAEMIA
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Nervous system disorders
DIZZINESS
0.28%
1/363 • Number of events 1
0.00%
0/368
0.27%
1/366 • Number of events 2
Nervous system disorders
HYPOAESTHESIA
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Nervous system disorders
LOSS OF CONSCIOUSNESS
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Nervous system disorders
MOTOR NEURONE DISEASE
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Nervous system disorders
MUSCLE SPASTICITY
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Nervous system disorders
SYNCOPE
0.00%
0/363
0.27%
1/368 • Number of events 1
1.1%
4/366 • Number of events 4
Psychiatric disorders
AFFECTIVE DISORDER
0.28%
1/363 • Number of events 1
0.00%
0/368
0.27%
1/366 • Number of events 1
Psychiatric disorders
ALCOHOL ABUSE
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Psychiatric disorders
ANXIETY
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Psychiatric disorders
BIPOLAR I DISORDER
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Psychiatric disorders
COMPLETED SUICIDE
0.28%
1/363 • Number of events 1
0.27%
1/368 • Number of events 1
0.00%
0/366
Psychiatric disorders
DEPRESSION
0.28%
1/363 • Number of events 1
0.27%
1/368 • Number of events 1
0.27%
1/366 • Number of events 1
Psychiatric disorders
DRUG ABUSE
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Psychiatric disorders
DRUG DEPENDENCE
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Psychiatric disorders
INTENTIONAL SELF-INJURY
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Psychiatric disorders
PERSONALITY DISORDER
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Psychiatric disorders
PSYCHIATRIC DECOMPENSATION
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Psychiatric disorders
SUICIDAL IDEATION
0.28%
1/363 • Number of events 1
0.00%
0/368
1.1%
4/366 • Number of events 4
Psychiatric disorders
SUICIDE ATTEMPT
0.28%
1/363 • Number of events 1
0.00%
0/368
0.27%
1/366 • Number of events 1
Renal and urinary disorders
GLOMERULONEPHRITIS MINIMAL LESION
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Renal and urinary disorders
RENAL TUBULAR NECROSIS
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Reproductive system and breast disorders
SCROTAL PAIN
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Respiratory, thoracic and mediastinal disorders
COUGH
0.00%
0/363
0.00%
0/368
0.55%
2/366 • Number of events 2
Respiratory, thoracic and mediastinal disorders
DYSPNOEA
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Respiratory, thoracic and mediastinal disorders
HAEMOPTYSIS
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Respiratory, thoracic and mediastinal disorders
PLEURAL FIBROSIS
0.00%
0/363
0.27%
1/368 • Number of events 1
0.00%
0/366
Respiratory, thoracic and mediastinal disorders
PNEUMOTHORAX
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Respiratory, thoracic and mediastinal disorders
PULMONARY EMBOLISM
0.00%
0/363
0.54%
2/368 • Number of events 2
0.00%
0/366
Skin and subcutaneous tissue disorders
PRURITUS
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Skin and subcutaneous tissue disorders
RASH ERYTHEMATOUS
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Social circumstances
ALCOHOL USE
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Social circumstances
PHYSICAL ASSAULT
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Surgical and medical procedures
CHOLECYSTECTOMY
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Surgical and medical procedures
LARYNGEAL OPERATION
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Surgical and medical procedures
SKIN NEOPLASM EXCISION
0.28%
1/363 • Number of events 1
0.00%
0/368
0.00%
0/366
Vascular disorders
ACCELERATED HYPERTENSION
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Vascular disorders
ARTERIAL THROMBOSIS LIMB
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Vascular disorders
HYPERTENSIVE CRISIS
0.00%
0/363
0.00%
0/368
0.27%
1/366 • Number of events 1
Vascular disorders
HYPOTENSION
0.00%
0/363
0.27%
1/368 • Number of events 1
0.27%
1/366 • Number of events 1

Other adverse events

Other adverse events
Measure
PEG + RBV
n=363 participants at risk
Cohort I (White participants) and Cohort II (Black participants) treated with PegIntron (PEG) 1.5 μg/kg + Ribavirin (RBV) (weight-based dosing \[WBD\]) for 4 weeks followed by placebo + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
BOCEPREVIR + PEG + RBV - 24 WEEKS
n=368 participants at risk
Cohort I (White participants) and Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 24 weeks. Participants were offered a response guided therapy (RGT) at treatment week 28. * At the Treatment Week 28 visit, participants whose HCV-RNA was undetectable at Treatment Week 8 and at all subsequent assays (up to Treatment Week 24), will proceed to the 44-week follow-up. * At the Treatment Week 28 visit, participants with detectable HCV-RNA at Treatment Week 8 or at any subsequent assays will continue on therapy with placebo + PEG 1.5 μg/kg + RBV (WBD) for an additional 20 weeks, to complete a total of 48 weeks on treatment with 24 weeks post-treatment follow-up.
BOCEPRIVIR + PEG + RBV - 44 WEEKS
n=366 participants at risk
Cohort I (White participants) and Cohort II (Black participants) treated with PEG 1.5 μg/kg + RBV (WBD) for 4 weeks followed by boceprevir + PEG 1.5 μg/kg + RBV (WBD) for 44 weeks with 24 weeks post-treatment follow-up.
Blood and lymphatic system disorders
ANAEMIA
29.5%
107/363 • Number of events 188
49.5%
182/368 • Number of events 292
48.9%
179/366 • Number of events 352
Blood and lymphatic system disorders
LEUKOPENIA
9.1%
33/363 • Number of events 81
8.4%
31/368 • Number of events 83
12.3%
45/366 • Number of events 126
Blood and lymphatic system disorders
NEUTROPENIA
21.2%
77/363 • Number of events 208
24.7%
91/368 • Number of events 216
25.4%
93/366 • Number of events 257
Blood and lymphatic system disorders
THROMBOCYTOPENIA
1.9%
7/363 • Number of events 16
4.3%
16/368 • Number of events 50
5.2%
19/366 • Number of events 38
Eye disorders
DRY EYE
4.4%
16/363 • Number of events 16
3.5%
13/368 • Number of events 13
6.0%
22/366 • Number of events 24
Eye disorders
VISION BLURRED
3.9%
14/363 • Number of events 15
6.2%
23/368 • Number of events 25
6.0%
22/366 • Number of events 25
Gastrointestinal disorders
ABDOMINAL PAIN
5.5%
20/363 • Number of events 30
6.8%
25/368 • Number of events 28
6.3%
23/366 • Number of events 28
Gastrointestinal disorders
ABDOMINAL PAIN UPPER
8.8%
32/363 • Number of events 40
8.2%
30/368 • Number of events 41
12.0%
44/366 • Number of events 54
Gastrointestinal disorders
CONSTIPATION
8.8%
32/363 • Number of events 34
6.0%
22/368 • Number of events 24
8.7%
32/366 • Number of events 34
Gastrointestinal disorders
DIARRHOEA
21.8%
79/363 • Number of events 103
21.7%
80/368 • Number of events 104
27.3%
100/366 • Number of events 125
Gastrointestinal disorders
DRY MOUTH
11.0%
40/363 • Number of events 45
10.6%
39/368 • Number of events 42
11.7%
43/366 • Number of events 51
Gastrointestinal disorders
DYSPEPSIA
8.8%
32/363 • Number of events 39
7.9%
29/368 • Number of events 35
9.0%
33/366 • Number of events 40
Gastrointestinal disorders
GASTROOESOPHAGEAL REFLUX DISEASE
2.2%
8/363 • Number of events 9
5.2%
19/368 • Number of events 22
5.5%
20/366 • Number of events 22
Gastrointestinal disorders
NAUSEA
42.1%
153/363 • Number of events 199
47.6%
175/368 • Number of events 231
43.4%
159/366 • Number of events 212
Gastrointestinal disorders
VOMITING
15.7%
57/363 • Number of events 70
20.4%
75/368 • Number of events 99
19.1%
70/366 • Number of events 90
General disorders
ASTHENIA
19.3%
70/363 • Number of events 129
14.9%
55/368 • Number of events 86
19.1%
70/366 • Number of events 132
General disorders
CHILLS
28.1%
102/363 • Number of events 114
36.4%
134/368 • Number of events 156
33.1%
121/366 • Number of events 139
General disorders
FATIGUE
59.8%
217/363 • Number of events 279
53.3%
196/368 • Number of events 250
57.1%
209/366 • Number of events 290
General disorders
INFLUENZA LIKE ILLNESS
25.6%
93/363 • Number of events 160
24.7%
91/368 • Number of events 113
22.7%
83/366 • Number of events 102
General disorders
INJECTION SITE ERYTHEMA
12.9%
47/363 • Number of events 55
12.5%
46/368 • Number of events 48
10.1%
37/366 • Number of events 38
General disorders
INJECTION SITE REACTION
12.1%
44/363 • Number of events 46
12.2%
45/368 • Number of events 46
10.7%
39/366 • Number of events 39
General disorders
IRRITABILITY
23.7%
86/363 • Number of events 106
22.0%
81/368 • Number of events 104
22.7%
83/366 • Number of events 111
General disorders
PAIN
9.4%
34/363 • Number of events 36
11.1%
41/368 • Number of events 43
10.1%
37/366 • Number of events 41
General disorders
PYREXIA
33.1%
120/363 • Number of events 196
33.4%
123/368 • Number of events 180
32.0%
117/366 • Number of events 218
Infections and infestations
SINUSITIS
4.1%
15/363 • Number of events 18
4.3%
16/368 • Number of events 20
5.2%
19/366 • Number of events 22
Investigations
WEIGHT DECREASED
12.7%
46/363 • Number of events 54
11.7%
43/368 • Number of events 50
14.2%
52/366 • Number of events 64
Metabolism and nutrition disorders
DECREASED APPETITE
24.8%
90/363 • Number of events 101
26.4%
97/368 • Number of events 107
24.3%
89/366 • Number of events 98
Musculoskeletal and connective tissue disorders
ARTHRALGIA
18.2%
66/363 • Number of events 84
18.8%
69/368 • Number of events 87
19.7%
72/366 • Number of events 103
Musculoskeletal and connective tissue disorders
BACK PAIN
11.0%
40/363 • Number of events 45
8.2%
30/368 • Number of events 33
10.9%
40/366 • Number of events 45
Musculoskeletal and connective tissue disorders
MUSCLE SPASMS
6.3%
23/363 • Number of events 25
4.1%
15/368 • Number of events 20
4.9%
18/366 • Number of events 20
Musculoskeletal and connective tissue disorders
MYALGIA
25.9%
94/363 • Number of events 125
21.2%
78/368 • Number of events 98
25.1%
92/366 • Number of events 120
Musculoskeletal and connective tissue disorders
PAIN IN EXTREMITY
5.2%
19/363 • Number of events 21
3.0%
11/368 • Number of events 12
5.7%
21/366 • Number of events 24
Nervous system disorders
DISTURBANCE IN ATTENTION
7.4%
27/363 • Number of events 30
6.0%
22/368 • Number of events 23
4.9%
18/366 • Number of events 18
Nervous system disorders
DIZZINESS
16.3%
59/363 • Number of events 74
21.7%
80/368 • Number of events 97
18.0%
66/366 • Number of events 70
Nervous system disorders
DYSGEUSIA
17.6%
64/363 • Number of events 68
37.2%
137/368 • Number of events 143
42.6%
156/366 • Number of events 164
Nervous system disorders
HEADACHE
42.1%
153/363 • Number of events 264
45.7%
168/368 • Number of events 233
45.6%
167/366 • Number of events 311
Nervous system disorders
MEMORY IMPAIRMENT
5.8%
21/363 • Number of events 21
2.4%
9/368 • Number of events 9
6.6%
24/366 • Number of events 28
Nervous system disorders
PARAESTHESIA
3.6%
13/363 • Number of events 32
2.7%
10/368 • Number of events 11
5.2%
19/366 • Number of events 23
Psychiatric disorders
ANXIETY
11.6%
42/363 • Number of events 49
13.6%
50/368 • Number of events 57
13.1%
48/366 • Number of events 65
Psychiatric disorders
DEPRESSION
21.5%
78/363 • Number of events 86
22.3%
82/368 • Number of events 103
18.9%
69/366 • Number of events 85
Psychiatric disorders
INSOMNIA
32.5%
118/363 • Number of events 137
31.8%
117/368 • Number of events 145
33.3%
122/366 • Number of events 141
Psychiatric disorders
MOOD SWINGS
1.7%
6/363 • Number of events 7
3.5%
13/368 • Number of events 17
5.2%
19/366 • Number of events 21
Respiratory, thoracic and mediastinal disorders
COUGH
20.9%
76/363 • Number of events 87
15.2%
56/368 • Number of events 69
20.2%
74/366 • Number of events 100
Respiratory, thoracic and mediastinal disorders
DYSPNOEA
16.3%
59/363 • Number of events 66
18.5%
68/368 • Number of events 87
23.0%
84/366 • Number of events 94
Respiratory, thoracic and mediastinal disorders
DYSPNOEA EXERTIONAL
8.3%
30/363 • Number of events 33
11.4%
42/368 • Number of events 44
8.5%
31/366 • Number of events 39
Respiratory, thoracic and mediastinal disorders
EPISTAXIS
3.6%
13/363 • Number of events 15
5.2%
19/368 • Number of events 23
5.7%
21/366 • Number of events 21
Respiratory, thoracic and mediastinal disorders
OROPHARYNGEAL PAIN
6.1%
22/363 • Number of events 24
3.8%
14/368 • Number of events 18
9.0%
33/366 • Number of events 34
Skin and subcutaneous tissue disorders
ALOPECIA
27.3%
99/363 • Number of events 105
20.4%
75/368 • Number of events 82
28.4%
104/366 • Number of events 109
Skin and subcutaneous tissue disorders
DRY SKIN
18.2%
66/363 • Number of events 77
18.2%
67/368 • Number of events 72
23.5%
86/366 • Number of events 98
Skin and subcutaneous tissue disorders
PRURITUS
27.0%
98/363 • Number of events 130
23.6%
87/368 • Number of events 101
25.7%
94/366 • Number of events 138
Skin and subcutaneous tissue disorders
RASH
22.9%
83/363 • Number of events 124
25.3%
93/368 • Number of events 111
24.0%
88/366 • Number of events 119

Additional Information

Senior Vice President, Global Clinical Development

Merck Sharp & Dohme Corp.

Results disclosure agreements

  • Principal investigator is a sponsor employee In this multicenter trial, initially, the investigator may only publish study results together with the other sites, unless specific written permission is obtained in advance from the sponsor. The disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a 45 day period from the time submitted to the sponsor for review.
  • Publication restrictions are in place

Restriction type: OTHER