Trial Outcomes & Findings for Sofosbuvir/Velpatasvir Fixed Dose Combination for 12 Weeks in Adults With Chronic HCV Infection (NCT NCT02201940)

NCT ID: NCT02201940

Last Updated: 2018-11-15

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

PHASE3

Target enrollment

741 participants

Primary outcome timeframe

Posttreatment Week 12

Results posted on

2018-11-15

Participant Flow

Participants were enrolled at study sites in the United States, Canada, Europe, and Asia. The first participant was screened on 18 July 2014. The last study visit occurred on 23 September 2015.

847 participants were screened.

Participant milestones

Participant milestones
Measure
SOF/VEL
Sofosbuvir/velpatasvir (SOF/VEL) (400/100 mg) fixed-dose combination (FDC) tablet administered orally once daily for 12 weeks
Placebo
SOF/VEL placebo tablet administered orally once daily for 12 weeks
Overall Study
STARTED
625
116
Overall Study
COMPLETED
613
0
Overall Study
NOT COMPLETED
12
116

Reasons for withdrawal

Reasons for withdrawal
Measure
SOF/VEL
Sofosbuvir/velpatasvir (SOF/VEL) (400/100 mg) fixed-dose combination (FDC) tablet administered orally once daily for 12 weeks
Placebo
SOF/VEL placebo tablet administered orally once daily for 12 weeks
Overall Study
Randomized/Enrolled but Never Treated
1
0
Overall Study
Lack of Efficacy
2
113
Overall Study
Lost to Follow-up
5
0
Overall Study
Withdrew Consent
2
1
Overall Study
Investigator's Discretion
1
1
Overall Study
Death
1
0
Overall Study
Adverse Event
0
1

Baseline Characteristics

Sofosbuvir/Velpatasvir Fixed Dose Combination for 12 Weeks in Adults With Chronic HCV Infection

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
SOF/VEL
n=624 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks
Placebo
n=116 Participants
SOF/VEL placebo tablet administered orally once daily for 12 weeks
Total
n=740 Participants
Total of all reporting groups
Age, Continuous
54 years
STANDARD_DEVIATION 10.9 • n=93 Participants
53 years
STANDARD_DEVIATION 10.4 • n=4 Participants
54 years
STANDARD_DEVIATION 10.8 • n=27 Participants
Sex: Female, Male
Female
250 Participants
n=93 Participants
48 Participants
n=4 Participants
298 Participants
n=27 Participants
Sex: Female, Male
Male
374 Participants
n=93 Participants
68 Participants
n=4 Participants
442 Participants
n=27 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
31 Participants
n=93 Participants
5 Participants
n=4 Participants
36 Participants
n=27 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
589 Participants
n=93 Participants
111 Participants
n=4 Participants
700 Participants
n=27 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
4 Participants
n=93 Participants
0 Participants
n=4 Participants
4 Participants
n=27 Participants
Race/Ethnicity, Customized
Black or African American
52 participants
n=93 Participants
12 participants
n=4 Participants
64 participants
n=27 Participants
Race/Ethnicity, Customized
White
493 participants
n=93 Participants
89 participants
n=4 Participants
582 participants
n=27 Participants
Race/Ethnicity, Customized
Asian
62 participants
n=93 Participants
11 participants
n=4 Participants
73 participants
n=27 Participants
Race/Ethnicity, Customized
American Indian/ Alaska Native
7 participants
n=93 Participants
0 participants
n=4 Participants
7 participants
n=27 Participants
Race/Ethnicity, Customized
Hawaiian or Pacific Islander
1 participants
n=93 Participants
1 participants
n=4 Participants
2 participants
n=27 Participants
Race/Ethnicity, Customized
Other
6 participants
n=93 Participants
3 participants
n=4 Participants
9 participants
n=27 Participants
Race/Ethnicity, Customized
Not Disclosed
3 participants
n=93 Participants
0 participants
n=4 Participants
3 participants
n=27 Participants
Region of Enrollment
Canada
55 participants
n=93 Participants
7 participants
n=4 Participants
62 participants
n=27 Participants
Region of Enrollment
Belgium
40 participants
n=93 Participants
5 participants
n=4 Participants
45 participants
n=27 Participants
Region of Enrollment
United States
234 participants
n=93 Participants
45 participants
n=4 Participants
279 participants
n=27 Participants
Region of Enrollment
China
19 participants
n=93 Participants
4 participants
n=4 Participants
23 participants
n=27 Participants
Region of Enrollment
Italy
16 participants
n=93 Participants
2 participants
n=4 Participants
18 participants
n=27 Participants
Region of Enrollment
United Kingdom
91 participants
n=93 Participants
13 participants
n=4 Participants
104 participants
n=27 Participants
Region of Enrollment
France
126 participants
n=93 Participants
32 participants
n=4 Participants
158 participants
n=27 Participants
Region of Enrollment
Germany
44 participants
n=93 Participants
8 participants
n=4 Participants
52 participants
n=27 Participants
Cirrhosis Status
Present
121 participants
n=93 Participants
21 participants
n=4 Participants
142 participants
n=27 Participants
Cirrhosis Status
Absent
501 participants
n=93 Participants
95 participants
n=4 Participants
596 participants
n=27 Participants
Cirrhosis Status
Missing
2 participants
n=93 Participants
0 participants
n=4 Participants
2 participants
n=27 Participants
HCV Genotype
Genotype 1
328 participants
n=93 Participants
65 participants
n=4 Participants
393 participants
n=27 Participants
HCV Genotype
Genotype 2
104 participants
n=93 Participants
21 participants
n=4 Participants
125 participants
n=27 Participants
HCV Genotype
Genotype 4
116 participants
n=93 Participants
22 participants
n=4 Participants
138 participants
n=27 Participants
HCV Genotype
Genotype 5
35 participants
n=93 Participants
0 participants
n=4 Participants
35 participants
n=27 Participants
HCV Genotype
Genotype 6
41 participants
n=93 Participants
8 participants
n=4 Participants
49 participants
n=27 Participants
IL28b Status
CC
186 participants
n=93 Participants
36 participants
n=4 Participants
222 participants
n=27 Participants
IL28b Status
CT
339 participants
n=93 Participants
53 participants
n=4 Participants
392 participants
n=27 Participants
IL28b Status
TT
94 participants
n=93 Participants
26 participants
n=4 Participants
120 participants
n=27 Participants
IL28b Status
Missing
5 participants
n=93 Participants
1 participants
n=4 Participants
6 participants
n=27 Participants
HCV RNA
6.3 log10 IU/mL
STANDARD_DEVIATION 0.66 • n=93 Participants
6.3 log10 IU/mL
STANDARD_DEVIATION 0.58 • n=4 Participants
6.3 log10 IU/mL
STANDARD_DEVIATION 0.65 • n=27 Participants
HCV RNA Category
< 800,000 IU/mL
163 participants
n=93 Participants
29 participants
n=4 Participants
192 participants
n=27 Participants
HCV RNA Category
≥ 800,000 IU/mL
461 participants
n=93 Participants
87 participants
n=4 Participants
548 participants
n=27 Participants

PRIMARY outcome

Timeframe: Posttreatment Week 12

Population: Full Analysis Set: participants randomized or enrolled 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) at 12 weeks after stopping study treatment.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=624 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks
Placebo
n=116 Participants
SOF/VEL placebo tablet administered orally once daily for 12 weeks
Percentage of Participants With Sustained Virologic Response (SVR) 12 Weeks After Discontinuation of Therapy (SVR12)
99.0 percentage of participants
Interval 97.9 to 99.6
0 percentage of participants
Interval 0.0 to 3.1

PRIMARY outcome

Timeframe: Up to 12 weeks

Population: Safety Analysis Set

Outcome measures

Outcome measures
Measure
SOF/VEL
n=624 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks
Placebo
n=116 Participants
SOF/VEL placebo tablet administered orally once daily for 12 weeks
Percentage of Participants Who Permanently Discontinued Any Study Drug Due to an Adverse Event
0.2 percentage of participants
1.7 percentage of participants

SECONDARY outcome

Timeframe: Posttreatment Weeks 4 and 24

Population: Full Analysis Set

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

Outcome measures

Outcome measures
Measure
SOF/VEL
n=624 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks
Placebo
n=116 Participants
SOF/VEL placebo tablet administered orally once daily for 12 weeks
Percentage of Participants With SVR at 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24)
SVR4
99.2 percentage of participants
Interval 98.1 to 99.7
0 percentage of participants
Interval 0.0 to 3.1
Percentage of Participants With SVR at 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24)
SVR24
99.0 percentage of participants
Interval 97.9 to 99.6
0 percentage of participants
Interval 0.0 to 3.1

SECONDARY outcome

Timeframe: Weeks 1, 2, 4, 6, 8, 10, and 12

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

Outcome measures

Outcome measures
Measure
SOF/VEL
n=624 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks
Placebo
n=116 Participants
SOF/VEL placebo tablet administered orally once daily for 12 weeks
Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, and 12
Week 6 (SOF/VEL: N = 623; Placebo: N = 115)
98.9 percentage of participants
Interval 97.7 to 99.5
0 percentage of participants
Interval 0.0 to 3.2
Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, and 12
Week 8 (SOF/VEL: N = 622; Placebo: N = 114)
99.7 percentage of participants
Interval 98.8 to 100.0
0 percentage of participants
Interval 0.0 to 3.2
Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, and 12
Week 10 (SOF/VEL: N = 622; Placebo: N = 114)
100.0 percentage of participants
Interval 99.4 to 100.0
0 percentage of participants
Interval 0.0 to 3.2
Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, and 12
Week 12 (SOF/VEL: N = 622; Placebo: N = 113)
100.0 percentage of participants
Interval 99.4 to 100.0
0 percentage of participants
Interval 0.0 to 3.2
Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, and 12
Week 1 (SOF/VEL: N = 624; Placebo: N = 116)
18.8 percentage of participants
Interval 15.8 to 22.0
0 percentage of participants
Interval 0.0 to 3.1
Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, and 12
Week 2 (SOF/VEL: N = 624; Placebo: N = 116)
56.9 percentage of participants
Interval 52.9 to 60.8
0 percentage of participants
Interval 0.0 to 3.1
Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, and 12
Week 4 (SOF/VEL: N = 623; Placebo: N = 116)
90.5 percentage of participants
Interval 88.0 to 92.7
0 percentage of participants
Interval 0.0 to 3.1

SECONDARY outcome

Timeframe: Baseline; Weeks 1, 2, 4, 6, 8, 10, and 12

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

Outcome measures

Outcome measures
Measure
SOF/VEL
n=624 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks
Placebo
n=116 Participants
SOF/VEL placebo tablet administered orally once daily for 12 weeks
Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, and 12
Change at Wk 1 (SOF/VEL: N= 617; Placebo: N= 114)
-4.29 log10 IU/mL
Standard Deviation 0.647
-0.05 log10 IU/mL
Standard Deviation 0.561
Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, and 12
Change at Wk 2 (SOF/VEL: N= 622; Placebo: N= 116)
-4.82 log10 IU/mL
Standard Deviation 0.685
0.01 log10 IU/mL
Standard Deviation 0.280
Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, and 12
Change at Wk 4 (SOF/VEL: N= 617; Placebo: N= 114)
-5.08 log10 IU/mL
Standard Deviation 0.656
-0.01 log10 IU/mL
Standard Deviation 0.297
Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, and 12
Change at Wk 6 (SOF/VEL: N= 623; Placebo: N= 115)
-5.11 log10 IU/mL
Standard Deviation 0.664
0.07 log10 IU/mL
Standard Deviation 0.298
Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, and 12
Change at Wk 8 (SOF/VEL: N= 622; Placebo: N= 113)
-5.11 log10 IU/mL
Standard Deviation 0.664
0.05 log10 IU/mL
Standard Deviation 0.281
Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, and 12
Change at Wk 10 (SOF/VEL: N= 622; Placebo: N= 112)
-5.12 log10 IU/mL
Standard Deviation 0.662
0.05 log10 IU/mL
Standard Deviation 0.337
Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, and 12
Change at Wk 12 (SOF/VEL: N= 622; Placebo: N= 111)
-5.12 log10 IU/mL
Standard Deviation 0.662
-0.06 log10 IU/mL
Standard Deviation 0.580

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/VEL
n=624 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks
Placebo
n=116 Participants
SOF/VEL placebo tablet administered orally once daily for 12 weeks
Percentage of Participants With Virologic Failure
0.3 percentage of participants
100 percentage of participants

Adverse Events

SOF/VEL

Serious events: 15 serious events
Other events: 393 other events
Deaths: 0 deaths

Placebo

Serious events: 0 serious events
Other events: 77 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
SOF/VEL
n=624 participants at risk
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks
Placebo
n=116 participants at risk
SOF/VEL placebo tablet administered orally once daily for 12 weeks
Cardiac disorders
Acute myocardial infarction
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Cardiac disorders
Palpitations
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Gastrointestinal disorders
Small intestinal obstruction
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
General disorders
Sudden death
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Infections and infestations
Abscess limb
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Infections and infestations
Appendicitis
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Infections and infestations
Bronchitis
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Infections and infestations
Cellulitis
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Infections and infestations
Gastroenteritis
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Infections and infestations
Influenza
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Infections and infestations
Vestibular neuronitis
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Injury, poisoning and procedural complications
Ligament sprain
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Injury, poisoning and procedural complications
Upper limb fracture
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Musculoskeletal and connective tissue disorders
Rotator cuff syndrome
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Lung neoplasm malignant
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Nervous system disorders
Epilepsy
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Psychiatric disorders
Mania
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Respiratory, thoracic and mediastinal disorders
Chronic obstructive pulmonary disease
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Vascular disorders
Extremity necrosis
0.16%
1/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
0.00%
0/116 • Up to 12 weeks plus 30 days
Safety Analysis Set

Other adverse events

Other adverse events
Measure
SOF/VEL
n=624 participants at risk
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks
Placebo
n=116 participants at risk
SOF/VEL placebo tablet administered orally once daily for 12 weeks
Gastrointestinal disorders
Diarrhoea
7.7%
48/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
6.9%
8/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Gastrointestinal disorders
Nausea
12.0%
75/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
11.2%
13/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
General disorders
Asthenia
6.7%
42/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
7.8%
9/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
General disorders
Fatigue
20.4%
127/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
20.7%
24/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Infections and infestations
Nasopharyngitis
12.8%
80/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
10.3%
12/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Musculoskeletal and connective tissue disorders
Arthralgia
6.4%
40/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
7.8%
9/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Musculoskeletal and connective tissue disorders
Back pain
4.6%
29/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
9.5%
11/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Musculoskeletal and connective tissue disorders
Myalgia
4.0%
25/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
5.2%
6/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Nervous system disorders
Headache
29.2%
182/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
28.4%
33/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Psychiatric disorders
Insomnia
8.0%
50/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
9.5%
11/116 • Up to 12 weeks plus 30 days
Safety Analysis Set
Respiratory, thoracic and mediastinal disorders
Cough
6.2%
39/624 • Up to 12 weeks plus 30 days
Safety Analysis Set
3.4%
4/116 • Up to 12 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