Trial Outcomes & Findings for Efficacy and Safety of Sofosbuvir/Velpatasvir Fixed-Dose Combination (FDC) and Sofosbuvir/Velpatasvir FDC and Ribavirin in Participants With Chronic Genotype 3 HCV Infection and Cirrhosis (NCT NCT02781558)

NCT ID: NCT02781558

Last Updated: 2018-11-27

Results Overview

SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ; ie, 15 IU/mL) at 12 weeks after stopping study treatment.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

204 participants

Primary outcome timeframe

Posttreatment Week 12

Results posted on

2018-11-27

Participant Flow

Participants were enrolled at study sites in Spain. The first participant was screened on 29 July 2016. The last study visit occurred on 27 October 2017.

Participant milestones

Participant milestones
Measure
SOF/VEL
Sofosbuvir/velpatasvir (SOF/VEL) 400/100 mg fixed-dose combination (FDC) tablet once daily for 12 weeks
SOF/VEL + RBV
SOF/VEL 400/100 mg FDC tablet once daily + ribavirin (RBV) tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Overall Study
STARTED
101
103
Overall Study
COMPLETED
98
101
Overall Study
NOT COMPLETED
3
2

Reasons for withdrawal

Reasons for withdrawal
Measure
SOF/VEL
Sofosbuvir/velpatasvir (SOF/VEL) 400/100 mg fixed-dose combination (FDC) tablet once daily for 12 weeks
SOF/VEL + RBV
SOF/VEL 400/100 mg FDC tablet once daily + ribavirin (RBV) tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Overall Study
Lost to Follow-up
2
2
Overall Study
Adverse Event
1
0

Baseline Characteristics

Efficacy and Safety of Sofosbuvir/Velpatasvir Fixed-Dose Combination (FDC) and Sofosbuvir/Velpatasvir FDC and Ribavirin in Participants With Chronic Genotype 3 HCV Infection and Cirrhosis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
SOF/VEL
n=101 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=103 Participants
SOF/VEL 400/100 mg FDC tablet once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Total
n=204 Participants
Total of all reporting groups
Age, Continuous
51 years
STANDARD_DEVIATION 7.3 • n=5 Participants
51 years
STANDARD_DEVIATION 7.6 • n=7 Participants
51 years
STANDARD_DEVIATION 7.4 • n=5 Participants
Sex: Female, Male
Female
26 Participants
n=5 Participants
16 Participants
n=7 Participants
42 Participants
n=5 Participants
Sex: Female, Male
Male
75 Participants
n=5 Participants
87 Participants
n=7 Participants
162 Participants
n=5 Participants
Race/Ethnicity, Customized
White
84 Participants
n=5 Participants
95 Participants
n=7 Participants
179 Participants
n=5 Participants
Race/Ethnicity, Customized
Asian
17 Participants
n=5 Participants
8 Participants
n=7 Participants
25 Participants
n=5 Participants
Race/Ethnicity, Customized
Hispanic or Latino
9 Participants
n=5 Participants
10 Participants
n=7 Participants
19 Participants
n=5 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
92 Participants
n=5 Participants
93 Participants
n=7 Participants
185 Participants
n=5 Participants
IL28B
CC
64 Participants
n=5 Participants
53 Participants
n=7 Participants
117 Participants
n=5 Participants
IL28B
Non-CC
36 Participants
n=5 Participants
50 Participants
n=7 Participants
86 Participants
n=5 Participants
IL28B
Missing
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
HCV RNA
6.2 log10 IU/mL
STANDARD_DEVIATION 0.64 • n=5 Participants
6.3 log10 IU/mL
STANDARD_DEVIATION 0.56 • n=7 Participants
6.2 log10 IU/mL
STANDARD_DEVIATION 0.60 • n=5 Participants
HCV RNA Category
< 800,000 IU/mL
32 Participants
n=5 Participants
24 Participants
n=7 Participants
56 Participants
n=5 Participants
HCV RNA Category
≥ 800,000 IU/mL
69 Participants
n=5 Participants
79 Participants
n=7 Participants
148 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Posttreatment Week 12

Population: Full Analysis Set: all randomized participants who took at least 1 dose of any study drug

SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ; ie, 15 IU/mL) at 12 weeks after stopping study treatment.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=101 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=103 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Percentage of Participants With Sustained Virologic Response (SVR) 12 Weeks After Cessation of Therapy (SVR12)
91.1 percentage of participants
Interval 83.8 to 95.8
96.1 percentage of participants
Interval 90.4 to 98.9

PRIMARY outcome

Timeframe: Posttreatment Week 12

Population: Safety Analysis Set

Outcome measures

Outcome measures
Measure
SOF/VEL
n=101 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=103 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Percentage of Participants Who Permanently Discontinued Any Study Drug (Which Included SOF/VEL and RBV) Due to Any Adverse Event
1.0 percentage of participants
1.9 percentage of participants

SECONDARY outcome

Timeframe: Posttreatment Week 4

Population: Full Analysis Set

SVR4 was defined as HCV RNA \< the lower limit of quantitation (LLOQ; ie, 15 IU/mL) at 4 weeks after stopping study treatment.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=101 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=103 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Percentage of Participants Who Attain Sustained Virologic Response at 4 Weeks After Cessation of the Study Treatment Regimen (SVR4)
93.1 percentage of participants
Interval 86.2 to 97.2
97.1 percentage of participants
Interval 91.7 to 99.4

SECONDARY outcome

Timeframe: Week 2

Population: Participants in the Full Analysis Set with available data were analyzed.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=100 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=103 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Percentage of Participants Who Have HCV RNA < LLOQ at Week 2
51.0 percentage of participants
Interval 40.8 to 61.1
44.7 percentage of participants
Interval 34.9 to 54.8

SECONDARY outcome

Timeframe: Week 4

Population: Participants in the Full Analysis Set with available data were analyzed.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=100 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=103 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Percentage of Participants Who Have HCV RNA < LLOQ at Week 4
85.0 percentage of participants
Interval 76.5 to 91.4
90.3 percentage of participants
Interval 82.9 to 95.2

SECONDARY outcome

Timeframe: Week 8

Population: Participants in the Full Analysis Set with available data were analyzed.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=100 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=102 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Percentage of Participants Who Have HCV RNA < LLOQ at Week 8
99.0 percentage of participants
Interval 94.6 to 100.0
100.0 percentage of participants
Interval 96.4 to 100.0

SECONDARY outcome

Timeframe: Week 12

Population: Participants in the Full Analysis Set with available data were analyzed.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=100 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=101 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Percentage of Participants Who Have HCV RNA < LLOQ at Week 12
99.0 percentage of participants
Interval 94.6 to 100.0
100.0 percentage of participants
Interval 96.4 to 100.0

SECONDARY outcome

Timeframe: Week 2

Population: Participants in the Full Analysis Set with available data were analyzed.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=97 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=102 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
HCV RNA at Week 2
1.52 log10 IU/mL
Standard Deviation 0.513
1.47 log10 IU/mL
Standard Deviation 0.413

SECONDARY outcome

Timeframe: Week 4

Population: Participants in the Full Analysis Set with available data were analyzed.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=100 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=103 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
HCV RNA at Week 4
1.22 log10 IU/mL
Standard Deviation 0.257
1.19 log10 IU/mL
Standard Deviation 0.152

SECONDARY outcome

Timeframe: Week 8

Population: Participants in the Full Analysis Set with available data were analyzed.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=100 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=102 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
HCV RNA at Week 8
1.15 log10 IU/mL
Standard Deviation 0.040
1.15 log10 IU/mL
Standard Deviation 0.000

SECONDARY outcome

Timeframe: Week 12

Population: Participants in the Full Analysis Set with available data were analyzed.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=100 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=101 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
HCV RNA at Week 12
1.15 log10 IU/mL
Standard Deviation 0.018
1.15 log10 IU/mL
Standard Deviation 0.000

SECONDARY outcome

Timeframe: Baseline; Week 2

Population: Participants in the Full Analysis Set with available data were analyzed.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=97 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=102 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Change From Baseline in HCV RNA at Week 2
-4.67 log10 IU/mL
Standard Deviation 0.627
-4.80 log10 IU/mL
Standard Deviation 0.580

SECONDARY outcome

Timeframe: Baseline; Week 4

Population: Participants in the Full Analysis Set with available data were analyzed.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=100 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=103 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Change From Baseline in HCV RNA at Week 4
-4.96 log10 IU/mL
Standard Deviation 0.641
-5.09 log10 IU/mL
Standard Deviation 0.559

SECONDARY outcome

Timeframe: Baseline; Week 8

Population: Participants in the Full Analysis Set with available data were analyzed.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=100 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=102 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Change From Baseline in HCV RNA at Week 8
-5.04 log10 IU/mL
Standard Deviation 0.638
-5.13 log10 IU/mL
Standard Deviation 0.565

SECONDARY outcome

Timeframe: Baseline; Week 12

Population: Participants in the Full Analysis Set with available data were analyzed.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=100 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=101 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Change From Baseline in HCV RNA at Week 12
-5.04 log10 IU/mL
Standard Deviation 0.640
-5.13 log10 IU/mL
Standard Deviation 0.568

SECONDARY outcome

Timeframe: Up to Posttreatment Week 12

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 on 2 consecutive measurements 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: * HCV RNA ≥ LLOQ during the post-treatment period having achieved HCV RNA \< LLOQ at end of treatment, confirmed with 2 consecutive values or last available post-treatment measurement

Outcome measures

Outcome measures
Measure
SOF/VEL
n=101 Participants
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=103 Participants
SOF/VEL 400/100 mg FDC tablet once daily RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Percentage of Participants With Virologic Failure
5.9 percentage of participants
1.9 percentage of participants

Adverse Events

SOF/VEL

Serious events: 4 serious events
Other events: 24 other events
Deaths: 0 deaths

SOF/VEL + RBV

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

Serious adverse events

Serious adverse events
Measure
SOF/VEL
n=101 participants at risk
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=103 participants at risk
SOF/VEL 400/100 mg FDC tablet once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Infections and infestations
Pharyngotonsillitis
0.99%
1/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/103 • Up to 12 weeks plus 30 days
Safety Analysis Set
Infections and infestations
Urinary tract infection
0.99%
1/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/103 • Up to 12 weeks plus 30 days
Safety Analysis Set
Injury, poisoning and procedural complications
Accident at work
0.99%
1/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/103 • Up to 12 weeks plus 30 days
Safety Analysis Set
Injury, poisoning and procedural complications
Limb injury
0.99%
1/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/103 • Up to 12 weeks plus 30 days
Safety Analysis Set
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Hepatic cancer
0.00%
0/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.97%
1/103 • Up to 12 weeks plus 30 days
Safety Analysis Set
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Hepatocellular carcinoma
0.99%
1/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/103 • Up to 12 weeks plus 30 days
Safety Analysis Set
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Non-small cell lung cancer
0.00%
0/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.97%
1/103 • Up to 12 weeks plus 30 days
Safety Analysis Set

Other adverse events

Other adverse events
Measure
SOF/VEL
n=101 participants at risk
SOF/VEL 400/100 mg FDC tablet once daily for 12 weeks
SOF/VEL + RBV
n=103 participants at risk
SOF/VEL 400/100 mg FDC tablet once daily + RBV tablets (1000 or 1200 mg daily based on weight) for 12 weeks
Gastrointestinal disorders
Nausea
2.0%
2/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
5.8%
6/103 • Up to 12 weeks plus 30 days
Safety Analysis Set
General disorders
Asthenia
11.9%
12/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
27.2%
28/103 • Up to 12 weeks plus 30 days
Safety Analysis Set
Musculoskeletal and connective tissue disorders
Back pain
6.9%
7/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
3.9%
4/103 • Up to 12 weeks plus 30 days
Safety Analysis Set
Nervous system disorders
Headache
7.9%
8/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
24.3%
25/103 • Up to 12 weeks plus 30 days
Safety Analysis Set
Psychiatric disorders
Insomnia
0.99%
1/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
11.7%
12/103 • Up to 12 weeks plus 30 days
Safety Analysis Set
Skin and subcutaneous tissue disorders
Pruritus
2.0%
2/101 • Up to 12 weeks plus 30 days
Safety Analysis Set
8.7%
9/103 • Up to 12 weeks plus 30 days
Safety Analysis Set

Additional Information

Gilead Clinical Study Information Center

Gilead Sciences

Phone: 1-833-445-3230 (GILEAD-0)

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