Trial Outcomes & Findings for Safety and Efficacy of Sofosbuvir Plus Ribavirin in Treatment-Naive Adults With Chronic Genotype 1 or 3 HCV Infection (NCT NCT02074514)

NCT ID: NCT02074514

Last Updated: 2016-10-25

Results Overview

SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ; ie, 15 IU/mL) 12 weeks following the last dose of study drug.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

117 participants

Primary outcome timeframe

Posttreatment Week 12

Results posted on

2016-10-25

Participant Flow

Participants were enrolled at study sites in India. The first participant was screened on 31 March 2014. The last study visit occurred on 30 November 2015.

Participant milestones

Participant milestones
Measure
SOF+RBV 16 Weeks
Sofosbuvir (Sovaldi®; SOF) 400 mg tablet administered orally once daily + ribavirin (RBV) tablets (1000 or 1200 mg daily based on weight) for 16 weeks.
SOF+RBV 24 Weeks
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks.
Overall Study
STARTED
59
58
Overall Study
COMPLETED
56
54
Overall Study
NOT COMPLETED
3
4

Reasons for withdrawal

Reasons for withdrawal
Measure
SOF+RBV 16 Weeks
Sofosbuvir (Sovaldi®; SOF) 400 mg tablet administered orally once daily + ribavirin (RBV) tablets (1000 or 1200 mg daily based on weight) for 16 weeks.
SOF+RBV 24 Weeks
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks.
Overall Study
Lack of Efficacy
3
2
Overall Study
Lost to Follow-up
0
1
Overall Study
Withdrew Consent
0
1

Baseline Characteristics

Safety and Efficacy of Sofosbuvir Plus Ribavirin in Treatment-Naive Adults With Chronic Genotype 1 or 3 HCV Infection

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
SOF + RBV 16 Weeks GT1
n=30 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 16 weeks in participants with genotype (GT) 1 HCV infection
SOF + RBV 24 Weeks GT1
n=28 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks in participants with genotype 1 HCV infection
SOF + RBV 16 Weeks GT3
n=29 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 16 weeks in participants with genotype 3 HCV infection
SOF + RBV 24 Weeks GT3
n=30 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks in participants with genotype 3 HCV infection
Total
n=117 Participants
Total of all reporting groups
Age, Continuous
45 Years
STANDARD_DEVIATION 11.7 • n=99 Participants
46 Years
STANDARD_DEVIATION 12.6 • n=107 Participants
40 Years
STANDARD_DEVIATION 12.7 • n=206 Participants
37 Years
STANDARD_DEVIATION 10.8 • n=7 Participants
42 Years
STANDARD_DEVIATION 12.4 • n=31 Participants
Sex: Female, Male
Female
11 Participants
n=99 Participants
14 Participants
n=107 Participants
12 Participants
n=206 Participants
5 Participants
n=7 Participants
42 Participants
n=31 Participants
Sex: Female, Male
Male
19 Participants
n=99 Participants
14 Participants
n=107 Participants
17 Participants
n=206 Participants
25 Participants
n=7 Participants
75 Participants
n=31 Participants
Race/Ethnicity, Customized
Asian
30 participants
n=99 Participants
28 participants
n=107 Participants
29 participants
n=206 Participants
30 participants
n=7 Participants
117 participants
n=31 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
28 participants
n=99 Participants
24 participants
n=107 Participants
26 participants
n=206 Participants
28 participants
n=7 Participants
106 participants
n=31 Participants
Race/Ethnicity, Customized
Not Permitted
2 participants
n=99 Participants
4 participants
n=107 Participants
3 participants
n=206 Participants
2 participants
n=7 Participants
11 participants
n=31 Participants
HCV genotype
Genotype 1a
5 participants
n=99 Participants
5 participants
n=107 Participants
0 participants
n=206 Participants
0 participants
n=7 Participants
10 participants
n=31 Participants
HCV genotype
Genotype 1b
25 participants
n=99 Participants
23 participants
n=107 Participants
0 participants
n=206 Participants
0 participants
n=7 Participants
48 participants
n=31 Participants
HCV genotype
Genotype 3
0 participants
n=99 Participants
0 participants
n=107 Participants
29 participants
n=206 Participants
30 participants
n=7 Participants
59 participants
n=31 Participants
Cirrhosis Status
Absence
20 participants
n=99 Participants
19 participants
n=107 Participants
22 participants
n=206 Participants
23 participants
n=7 Participants
84 participants
n=31 Participants
Cirrhosis Status
Presence
10 participants
n=99 Participants
9 participants
n=107 Participants
7 participants
n=206 Participants
7 participants
n=7 Participants
33 participants
n=31 Participants
HCV RNA
6.5 log10 IU/mL
STANDARD_DEVIATION 0.44 • n=99 Participants
5.9 log10 IU/mL
STANDARD_DEVIATION 0.72 • n=107 Participants
6.2 log10 IU/mL
STANDARD_DEVIATION 0.68 • n=206 Participants
6.5 log10 IU/mL
STANDARD_DEVIATION 0.70 • n=7 Participants
6.3 log10 IU/mL
STANDARD_DEVIATION 0.67 • n=31 Participants
IL28b Status
CC
14 participants
n=99 Participants
15 participants
n=107 Participants
17 participants
n=206 Participants
23 participants
n=7 Participants
69 participants
n=31 Participants
IL28b Status
CT
13 participants
n=99 Participants
8 participants
n=107 Participants
11 participants
n=206 Participants
7 participants
n=7 Participants
39 participants
n=31 Participants
IL28b Status
TT
3 participants
n=99 Participants
5 participants
n=107 Participants
1 participants
n=206 Participants
0 participants
n=7 Participants
9 participants
n=31 Participants
HCV RNA Category
< 800,000 IU/mL
5 participants
n=99 Participants
14 participants
n=107 Participants
10 participants
n=206 Participants
6 participants
n=7 Participants
35 participants
n=31 Participants
HCV RNA Category
≥ 800,000 IU/mL
25 participants
n=99 Participants
14 participants
n=107 Participants
19 participants
n=206 Participants
24 participants
n=7 Participants
82 participants
n=31 Participants

PRIMARY outcome

Timeframe: Posttreatment Week 12

Population: Full Analysis Set (FAS): participants with genotype 1 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, 15 IU/mL) 12 weeks following the last dose of study drug.

Outcome measures

Outcome measures
Measure
SOF + RBV 16 Weeks GT1
n=30 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 16 weeks in participants with genotype (GT) 1 HCV infection
SOF + RBV 24 Weeks GT1
n=28 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks in participants with genotype 1 HCV infection
SOF + RBV 16 Weeks GT3
n=29 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 16 weeks in participants with genotype 3 HCV infection
SOF + RBV 24 Weeks GT3
n=30 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks in participants with genotype 3 HCV infection
Percentage of Participants With Sustained Virologic Response 12 Weeks After Discontinuation of Therapy (SVR12)
90 percentage of participants
Interval 73.5 to 97.9
96.4 percentage of participants
Interval 81.7 to 99.9
100.0 percentage of participants
Interval 88.1 to 100.0
93.3 percentage of participants
Interval 77.9 to 99.2

PRIMARY outcome

Timeframe: Up to 24 weeks

Population: Safety Analysis Set

Outcome measures

Outcome measures
Measure
SOF + RBV 16 Weeks GT1
n=59 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 16 weeks in participants with genotype (GT) 1 HCV infection
SOF + RBV 24 Weeks GT1
n=58 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks in participants with genotype 1 HCV infection
SOF + RBV 16 Weeks GT3
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 16 weeks in participants with genotype 3 HCV infection
SOF + RBV 24 Weeks GT3
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks in participants with genotype 3 HCV infection
Percentage of Participants Who Permanently Discontinued Any Study Drug Due to an Adverse Event
0 percentage of participants
3.4 percentage of participants

SECONDARY outcome

Timeframe: Posttreatment Weeks 4 and 24

Population: Full Analysis Set

SVR4 and SVR24 were defined as HCV RNA \< LLOQ at 4 and 24 weeks after stopping study treatment, respectively.

Outcome measures

Outcome measures
Measure
SOF + RBV 16 Weeks GT1
n=30 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 16 weeks in participants with genotype (GT) 1 HCV infection
SOF + RBV 24 Weeks GT1
n=28 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks in participants with genotype 1 HCV infection
SOF + RBV 16 Weeks GT3
n=29 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 16 weeks in participants with genotype 3 HCV infection
SOF + RBV 24 Weeks GT3
n=30 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks in participants with genotype 3 HCV infection
Percentage of Participants With Sustained Virologic Response (SVR) at 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24)
SVR4
90.0 percentage of participants
Interval 73.5 to 97.9
96.4 percentage of participants
Interval 81.7 to 99.9
100.0 percentage of participants
Interval 88.1 to 100.0
96.7 percentage of participants
Interval 82.8 to 99.9
Percentage of Participants With Sustained Virologic Response (SVR) at 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24)
SVR24
90.0 percentage of participants
Interval 73.5 to 97.9
96.4 percentage of participants
Interval 81.7 to 99.9
100.0 percentage of participants
Interval 88.1 to 100.0
93.3 percentage of participants
Interval 77.9 to 99.2

SECONDARY outcome

Timeframe: Up to Posttreatment Week 24

Population: Full Analysis Set

Virologic failure was defined as: * On-treatment virologic failure: * Breakthrough (confirmed HCV RNA ≥ LLOQ after having previously had HCV RNA \< LLOQ while on treatment), or * Rebound (confirmed \> 1 log10 IU/mL increase in HCV RNA from nadir while on treatment), or * Non-response (HCV RNA persistently ≥ LLOQ through 8 weeks of treatment) * Virologic relapse: * Confirmed HCV RNA ≥ LLOQ during the posttreatment period having achieved HCV RNA \< LLOQ at last on-treatment visit.

Outcome measures

Outcome measures
Measure
SOF + RBV 16 Weeks GT1
n=30 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 16 weeks in participants with genotype (GT) 1 HCV infection
SOF + RBV 24 Weeks GT1
n=28 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks in participants with genotype 1 HCV infection
SOF + RBV 16 Weeks GT3
n=29 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 16 weeks in participants with genotype 3 HCV infection
SOF + RBV 24 Weeks GT3
n=30 Participants
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks in participants with genotype 3 HCV infection
Percentage of Participants With Virologic Failure and Viral Relapse
Overall Virologic Failure
10.0 percentage of participants
3.6 percentage of participants
0 percentage of participants
3.3 percentage of participants
Percentage of Participants With Virologic Failure and Viral Relapse
Relapse
10.0 percentage of participants
3.6 percentage of participants
0 percentage of participants
3.3 percentage of participants

Adverse Events

SOF + RBV 16 Weeks

Serious events: 1 serious events
Other events: 32 other events
Deaths: 0 deaths

SOF + RBV 24 Weeks

Serious events: 1 serious events
Other events: 27 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
SOF + RBV 16 Weeks
n=59 participants at risk
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 16 weeks
SOF + RBV 24 Weeks
n=58 participants at risk
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks
Gastrointestinal disorders
Intestinal obstruction
0.00%
0/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
1.7%
1/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
Infections and infestations
Cellulitis
1.7%
1/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
0.00%
0/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
Renal and urinary disorders
Urinary retention
0.00%
0/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
1.7%
1/58 • Up to 24 weeks plus 30 days
Safety Analysis Set

Other adverse events

Other adverse events
Measure
SOF + RBV 16 Weeks
n=59 participants at risk
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 16 weeks
SOF + RBV 24 Weeks
n=58 participants at risk
SOF 400 mg tablet administered orally once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 24 weeks
Blood and lymphatic system disorders
Anaemia
5.1%
3/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
6.9%
4/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
Blood and lymphatic system disorders
Haemolysis
6.8%
4/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
1.7%
1/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
Gastrointestinal disorders
Diarrhoea
3.4%
2/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
5.2%
3/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
Gastrointestinal disorders
Dyspepsia
1.7%
1/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
10.3%
6/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
Gastrointestinal disorders
Vomiting
3.4%
2/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
5.2%
3/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
General disorders
Asthenia
27.1%
16/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
19.0%
11/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
General disorders
Fatigue
13.6%
8/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
3.4%
2/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
General disorders
Pain
8.5%
5/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
6.9%
4/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
General disorders
Pyrexia
8.5%
5/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
6.9%
4/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
Infections and infestations
Nasopharyngitis
6.8%
4/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
0.00%
0/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
Metabolism and nutrition disorders
Decreased appetite
5.1%
3/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
3.4%
2/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
Musculoskeletal and connective tissue disorders
Arthralgia
5.1%
3/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
1.7%
1/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
Musculoskeletal and connective tissue disorders
Pain in extremity
3.4%
2/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
5.2%
3/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
Nervous system disorders
Headache
11.9%
7/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
13.8%
8/58 • Up to 24 weeks plus 30 days
Safety Analysis Set
Respiratory, thoracic and mediastinal disorders
Cough
11.9%
7/59 • Up to 24 weeks plus 30 days
Safety Analysis Set
10.3%
6/58 • Up to 24 weeks plus 30 days
Safety Analysis Set

Additional Information

Clinical Trial Disclosures

Gilead Sciences

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