Trial Outcomes & Findings for Sofosbuvir + Ribavirin for 12 Weeks in Subjects With Chronic Genotype 2 or 3 Hepatitis C Infection Who Are Interferon Intolerant, Interferon Ineligible or Unwilling to Take Interferon (NCT NCT01542788)

NCT ID: NCT01542788

Last Updated: 2014-05-19

Results Overview

SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ, ie, \< 25 IU/mL) 12 weeks after cessation of therapy

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

278 participants

Primary outcome timeframe

Post-treatment Week 12

Results posted on

2014-05-19

Participant Flow

Participants were enrolled at 54 sites in the North America, Australia, and New Zealand. The first participant was screened on 07 March 2012. The last participant observation was on 04 February 2013.

410 participants were screened and 280 were randomized. Of those participants randomized, 278 received at least one dose of study drug, and comprise the Safety Analysis Set and the Full Analysis Set.

Participant milestones

Participant milestones
Measure
SOF+RBV
Participants were randomized to receive sofosbuvir (SOF)+ribavirin (RBV) for 12 weeks. SOF was administered as a 400 mg tablet orally once daily. RBV was administered as 200 mg tablets (1000-1200 mg daily based on weight) according to package insert recommendations.
Placebo
Participants were randomized to receive placebo to match SOF plus placebo to match RBV for 12 weeks. Placebos were administered in the same manner as their active counterparts.
Overall Study
STARTED
209
71
Overall Study
Randomized and Treated
207
71
Overall Study
COMPLETED
154
0
Overall Study
NOT COMPLETED
55
71

Reasons for withdrawal

Reasons for withdrawal
Measure
SOF+RBV
Participants were randomized to receive sofosbuvir (SOF)+ribavirin (RBV) for 12 weeks. SOF was administered as a 400 mg tablet orally once daily. RBV was administered as 200 mg tablets (1000-1200 mg daily based on weight) according to package insert recommendations.
Placebo
Participants were randomized to receive placebo to match SOF plus placebo to match RBV for 12 weeks. Placebos were administered in the same manner as their active counterparts.
Overall Study
Randomized but Not Treated
2
0
Overall Study
Lack of Efficacy
41
71
Overall Study
Lost to Follow-up
5
0
Overall Study
Death
3
0
Overall Study
Protocol Violation
2
0
Overall Study
Physician Decision
1
0
Overall Study
Withdrawal by Subject
1
0

Baseline Characteristics

Sofosbuvir + Ribavirin for 12 Weeks in Subjects With Chronic Genotype 2 or 3 Hepatitis C Infection Who Are Interferon Intolerant, Interferon Ineligible or Unwilling to Take Interferon

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
SOF+RBV
n=207 Participants
Participants were randomized to receive SOF+RBV for 12 weeks. SOF was administered as a 400 mg tablet orally once daily. RBV was administered as 200 mg tablets (1000-1200 mg daily based on weight) according to package insert recommendations.
Placebo
n=71 Participants
Participants were randomized to receive placebo to match SOF plus placebo to match RBV for 12 weeks. Placebos were administered in the same manner as their active counterparts.
Total
n=278 Participants
Total of all reporting groups
Age, Continuous
52 years
STANDARD_DEVIATION 9.9 • n=99 Participants
52 years
STANDARD_DEVIATION 8.2 • n=107 Participants
52 years
STANDARD_DEVIATION 9.5 • n=206 Participants
Sex: Female, Male
Female
90 Participants
n=99 Participants
37 Participants
n=107 Participants
127 Participants
n=206 Participants
Sex: Female, Male
Male
117 Participants
n=99 Participants
34 Participants
n=107 Participants
151 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
19 Participants
n=99 Participants
11 Participants
n=107 Participants
30 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
188 Participants
n=99 Participants
60 Participants
n=107 Participants
248 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants
n=99 Participants
0 Participants
n=107 Participants
2 Participants
n=206 Participants
Race (NIH/OMB)
Asian
7 Participants
n=99 Participants
1 Participants
n=107 Participants
8 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
9 Participants
n=99 Participants
4 Participants
n=107 Participants
13 Participants
n=206 Participants
Race (NIH/OMB)
White
188 Participants
n=99 Participants
66 Participants
n=107 Participants
254 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Region of Enrollment
United States
168 participants
n=99 Participants
60 participants
n=107 Participants
228 participants
n=206 Participants
Region of Enrollment
Canada
15 participants
n=99 Participants
8 participants
n=107 Participants
23 participants
n=206 Participants
Region of Enrollment
Australia
18 participants
n=99 Participants
3 participants
n=107 Participants
21 participants
n=206 Participants
Region of Enrollment
New Zealand
6 participants
n=99 Participants
0 participants
n=107 Participants
6 participants
n=206 Participants
Cirrhosis
No
176 participants
n=99 Participants
58 participants
n=107 Participants
234 participants
n=206 Participants
Cirrhosis
Yes
31 participants
n=99 Participants
13 participants
n=107 Participants
44 participants
n=206 Participants
HCV Genotype
Genotype 2
109 participants
n=99 Participants
34 participants
n=107 Participants
143 participants
n=206 Participants
HCV Genotype
Genotype 3
98 participants
n=99 Participants
37 participants
n=107 Participants
135 participants
n=206 Participants
IL28 Genotype
CC
97 participants
n=99 Participants
29 participants
n=107 Participants
126 participants
n=206 Participants
IL28 Genotype
CT
84 participants
n=99 Participants
36 participants
n=107 Participants
120 participants
n=206 Participants
IL28 Genotype
TT
26 participants
n=99 Participants
6 participants
n=107 Participants
32 participants
n=206 Participants
HCV RNA
6.3 log10 IU/mL
STANDARD_DEVIATION 0.77 • n=99 Participants
6.3 log10 IU/mL
STANDARD_DEVIATION 0.76 • n=107 Participants
6.3 log10 IU/mL
STANDARD_DEVIATION 0.77 • n=206 Participants
HCV RNA Category
< 6 log10 IU/mL
67 participants
n=99 Participants
17 participants
n=107 Participants
84 participants
n=206 Participants
HCV RNA Category
≥ 6 log10 IU/mL
140 participants
n=99 Participants
54 participants
n=107 Participants
194 participants
n=206 Participants
Interferon Classification
Ineligible
88 participants
n=99 Participants
33 participants
n=107 Participants
121 participants
n=206 Participants
Interferon Classification
Intolerant
17 participants
n=99 Participants
8 participants
n=107 Participants
25 participants
n=206 Participants
Interferon Classification
Unwilling
102 participants
n=99 Participants
30 participants
n=107 Participants
132 participants
n=206 Participants

PRIMARY outcome

Timeframe: Post-treatment Week 12

Population: Full Analysis Set: participants with genotype 2 or 3 HCV infection who were randomized into the study and received at least 1 dose of study drug

SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ, ie, \< 25 IU/mL) 12 weeks after cessation of therapy

Outcome measures

Outcome measures
Measure
SOF+RBV
n=207 Participants
Participants were randomized to receive SOF+RBV for 12 weeks. SOF was administered as a 400 mg tablet orally once daily. RBV was administered as 200 mg tablets (1000-1200 mg daily based on weight) according to package insert recommendations.
Placebo
n=71 Participants
Participants were randomized to receive placebo to match SOF plus placebo to match RBV for 12 weeks. Placebos were administered in the same manner as their active counterparts.
Percentage of Participants Achieving SVR12
78 percentage of participants
0 percentage of participants

PRIMARY outcome

Timeframe: Baseline to Week 12

Population: Safety Analysis Set: participants were randomized and received at least 1 dose of study drug

The number of subjects experiencing adverse events leading to permanent discontinuation of study drug was summarized. Adverse events may or may not have been related to study treatment.

Outcome measures

Outcome measures
Measure
SOF+RBV
n=207 Participants
Participants were randomized to receive SOF+RBV for 12 weeks. SOF was administered as a 400 mg tablet orally once daily. RBV was administered as 200 mg tablets (1000-1200 mg daily based on weight) according to package insert recommendations.
Placebo
n=71 Participants
Participants were randomized to receive placebo to match SOF plus placebo to match RBV for 12 weeks. Placebos were administered in the same manner as their active counterparts.
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Anaemia
1 participants
0 participants
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Anxiety
1 participants
0 participants
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Chest discomfort
1 participants
0 participants
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Injury
1 participants
0 participants
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Muscle spasms
1 participants
0 participants
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Oedema peripheral
0 participants
1 participants
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
No adverse event leading to discontinuation
202 participants
68 participants
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Abdominal pain upper
1 participants
0 participants
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Alanine aminotransferase increased
0 participants
1 participants
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Insomnia
1 participants
0 participants
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Pancreatitis
0 participants
1 participants
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Rash
0 participants
1 participants
Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Road traffic accident
1 participants
0 participants

SECONDARY outcome

Timeframe: Post-treatment Week 4

Population: Full Analysis Set

SVR4 was defined as HCV RNA \< LLOQ 4 weeks after cessation of therapy

Outcome measures

Outcome measures
Measure
SOF+RBV
n=207 Participants
Participants were randomized to receive SOF+RBV for 12 weeks. SOF was administered as a 400 mg tablet orally once daily. RBV was administered as 200 mg tablets (1000-1200 mg daily based on weight) according to package insert recommendations.
Placebo
n=71 Participants
Participants were randomized to receive placebo to match SOF plus placebo to match RBV for 12 weeks. Placebos were administered in the same manner as their active counterparts.
Percentage of Participants Achieving SVR4
83.1 percentage of participants
0.0 percentage of participants

SECONDARY outcome

Timeframe: Post-treatment Week 24

Population: Full Analysis Set

SVR24 was defined as HCV RNA \< LLOQ 24 weeks after cessation of therapy

Outcome measures

Outcome measures
Measure
SOF+RBV
n=207 Participants
Participants were randomized to receive SOF+RBV for 12 weeks. SOF was administered as a 400 mg tablet orally once daily. RBV was administered as 200 mg tablets (1000-1200 mg daily based on weight) according to package insert recommendations.
Placebo
n=71 Participants
Participants were randomized to receive placebo to match SOF plus placebo to match RBV for 12 weeks. Placebos were administered in the same manner as their active counterparts.
Percentage of Participants Achieving SVR24
77.8 percentage of participants
0.0 percentage of participants

SECONDARY outcome

Timeframe: Baseline to Week 12

Population: Full Analysis Set

Viral breakthrough was defined as HCV RNA ≥ LLOQ after having previously had HCV RNA \< LLOQ while receiving treatment, confirmed with 2 consecutive values (second confirmation value could be posttreatment), or last available on-treatment measurement with no subsequent follow-up values

Outcome measures

Outcome measures
Measure
SOF+RBV
n=207 Participants
Participants were randomized to receive SOF+RBV for 12 weeks. SOF was administered as a 400 mg tablet orally once daily. RBV was administered as 200 mg tablets (1000-1200 mg daily based on weight) according to package insert recommendations.
Placebo
n=71 Participants
Participants were randomized to receive placebo to match SOF plus placebo to match RBV for 12 weeks. Placebos were administered in the same manner as their active counterparts.
Percentage of Participants Experiencing Viral Breakthrough
0.0 percentage of participants
0.0 percentage of participants

SECONDARY outcome

Timeframe: End of treatment to post-treatment Week 24

Population: Participants in the Full Analysis Set who had an end-of-treatment response (HCV RNA \< LLOQ as the last observed on-treatment value) were analyzed.

Viral relapse was defined as HCV RNA ≥ LLOQ during the posttreatment period having achieved HCV RNA \< LLOQ at end of treatment, confirmed with 2 consecutive values or last available posttreatment measurement

Outcome measures

Outcome measures
Measure
SOF+RBV
n=205 Participants
Participants were randomized to receive SOF+RBV for 12 weeks. SOF was administered as a 400 mg tablet orally once daily. RBV was administered as 200 mg tablets (1000-1200 mg daily based on weight) according to package insert recommendations.
Placebo
Participants were randomized to receive placebo to match SOF plus placebo to match RBV for 12 weeks. Placebos were administered in the same manner as their active counterparts.
Percentage of Participants Experiencing Viral Relapse
20.5 percentage of participants

Adverse Events

SOF+RBV

Serious events: 11 serious events
Other events: 184 other events
Deaths: 0 deaths

Placebo

Serious events: 2 serious events
Other events: 55 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
SOF+RBV
n=207 participants at risk
Participants were randomized to receive SOF+RBV for 12 weeks. SOF was administered as a 400 mg tablet orally once daily. RBV was administered as 200 mg tablets (1000-1200 mg daily based on weight) according to package insert recommendations.
Placebo
n=71 participants at risk
Participants were randomized to receive placebo to match SOF plus placebo to match RBV for 12 weeks. Placebos were administered in the same manner as their active counterparts.
Gastrointestinal disorders
Pancreatitis
0.00%
0/207 • Baseline to last dose date of study regimen + 30 days
1.4%
1/71 • Baseline to last dose date of study regimen + 30 days
General disorders
Drug withdrawal syndrome
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
General disorders
Non-cardiac chest pain
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
General disorders
Oedema peripheral
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
General disorders
Pyrexia
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Hepatobiliary disorders
Bile duct stone
0.00%
0/207 • Baseline to last dose date of study regimen + 30 days
1.4%
1/71 • Baseline to last dose date of study regimen + 30 days
Immune system disorders
Hypersensitivity
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Infections and infestations
Abdominal abscess
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Infections and infestations
Bronchitis
0.00%
0/207 • Baseline to last dose date of study regimen + 30 days
1.4%
1/71 • Baseline to last dose date of study regimen + 30 days
Infections and infestations
Cellulitis
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Injury, poisoning and procedural complications
Overdose
0.97%
2/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Injury, poisoning and procedural complications
Fall
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Injury, poisoning and procedural complications
Injury
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Injury, poisoning and procedural complications
Road traffic accident
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Injury, poisoning and procedural complications
Spinal compression fracture
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Metabolism and nutrition disorders
Hypoglycaemia
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Hepatic neoplasm malignant
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Psychiatric disorders
Abnormal behaviour
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Skin and subcutaneous tissue disorders
Eczema
0.48%
1/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days

Other adverse events

Other adverse events
Measure
SOF+RBV
n=207 participants at risk
Participants were randomized to receive SOF+RBV for 12 weeks. SOF was administered as a 400 mg tablet orally once daily. RBV was administered as 200 mg tablets (1000-1200 mg daily based on weight) according to package insert recommendations.
Placebo
n=71 participants at risk
Participants were randomized to receive placebo to match SOF plus placebo to match RBV for 12 weeks. Placebos were administered in the same manner as their active counterparts.
Blood and lymphatic system disorders
Anaemia
13.0%
27/207 • Baseline to last dose date of study regimen + 30 days
0.00%
0/71 • Baseline to last dose date of study regimen + 30 days
Gastrointestinal disorders
Nausea
22.2%
46/207 • Baseline to last dose date of study regimen + 30 days
18.3%
13/71 • Baseline to last dose date of study regimen + 30 days
Gastrointestinal disorders
Diarrhoea
9.2%
19/207 • Baseline to last dose date of study regimen + 30 days
5.6%
4/71 • Baseline to last dose date of study regimen + 30 days
Gastrointestinal disorders
Vomiting
5.8%
12/207 • Baseline to last dose date of study regimen + 30 days
7.0%
5/71 • Baseline to last dose date of study regimen + 30 days
Gastrointestinal disorders
Abdominal pain
2.9%
6/207 • Baseline to last dose date of study regimen + 30 days
5.6%
4/71 • Baseline to last dose date of study regimen + 30 days
General disorders
Fatigue
44.0%
91/207 • Baseline to last dose date of study regimen + 30 days
23.9%
17/71 • Baseline to last dose date of study regimen + 30 days
General disorders
Irritability
9.2%
19/207 • Baseline to last dose date of study regimen + 30 days
1.4%
1/71 • Baseline to last dose date of study regimen + 30 days
General disorders
Oedema peripheral
1.9%
4/207 • Baseline to last dose date of study regimen + 30 days
5.6%
4/71 • Baseline to last dose date of study regimen + 30 days
Metabolism and nutrition disorders
Decreased appetite
3.4%
7/207 • Baseline to last dose date of study regimen + 30 days
9.9%
7/71 • Baseline to last dose date of study regimen + 30 days
Musculoskeletal and connective tissue disorders
Arthralgia
7.7%
16/207 • Baseline to last dose date of study regimen + 30 days
1.4%
1/71 • Baseline to last dose date of study regimen + 30 days
Nervous system disorders
Headache
20.8%
43/207 • Baseline to last dose date of study regimen + 30 days
19.7%
14/71 • Baseline to last dose date of study regimen + 30 days
Nervous system disorders
Dizziness
9.2%
19/207 • Baseline to last dose date of study regimen + 30 days
7.0%
5/71 • Baseline to last dose date of study regimen + 30 days
Psychiatric disorders
Insomnia
18.8%
39/207 • Baseline to last dose date of study regimen + 30 days
4.2%
3/71 • Baseline to last dose date of study regimen + 30 days
Psychiatric disorders
Anxiety
6.3%
13/207 • Baseline to last dose date of study regimen + 30 days
5.6%
4/71 • Baseline to last dose date of study regimen + 30 days
Psychiatric disorders
Depression
7.2%
15/207 • Baseline to last dose date of study regimen + 30 days
1.4%
1/71 • Baseline to last dose date of study regimen + 30 days
Respiratory, thoracic and mediastinal disorders
Dyspnoea
9.2%
19/207 • Baseline to last dose date of study regimen + 30 days
1.4%
1/71 • Baseline to last dose date of study regimen + 30 days
Respiratory, thoracic and mediastinal disorders
Cough
5.3%
11/207 • Baseline to last dose date of study regimen + 30 days
2.8%
2/71 • Baseline to last dose date of study regimen + 30 days
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
2.4%
5/207 • Baseline to last dose date of study regimen + 30 days
5.6%
4/71 • Baseline to last dose date of study regimen + 30 days
Skin and subcutaneous tissue disorders
Pruritus
11.1%
23/207 • Baseline to last dose date of study regimen + 30 days
8.5%
6/71 • Baseline to last dose date of study regimen + 30 days
Skin and subcutaneous tissue disorders
Rash
8.7%
18/207 • Baseline to last dose date of study regimen + 30 days
8.5%
6/71 • Baseline to last dose date of study regimen + 30 days

Additional Information

Clinical Trial Disclosures

Gilead Sciences, Inc.

Results disclosure agreements

  • Principal investigator is a sponsor employee After conclusion of the study and without prior written approval from Gilead, investigators in this study may communicate, orally present, or publish in scientific journals or other media only after the following conditions have been met: * The results of the study in their entirety have been publicly disclosed by or with the consent of Gilead in an abstract, manuscript, or presentation form; or * The study has been completed at all study sites for at least 2 years
  • Publication restrictions are in place

Restriction type: OTHER