Trial Outcomes & Findings for Efficacy and Safety of Sofosbuvir/Velpatasvir Fixed-Dose Combination in Participants With Chronic Hepatitis C Virus Infection (NCT NCT02722837)

NCT ID: NCT02722837

Last Updated: 2018-11-16

Results Overview

SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ) at 12 weeks after stopping study treatment.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

119 participants

Primary outcome timeframe

Posttreatment Week 12

Results posted on

2018-11-16

Participant Flow

Participants were enrolled at study sites in the Russian Federation and Sweden. The first participant was screened on 04 April 2016 and the last study visit occurred on 13 September 2017.

122 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, with or without food
Overall Study
STARTED
119
Overall Study
COMPLETED
119
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Efficacy and Safety of Sofosbuvir/Velpatasvir Fixed-Dose Combination in Participants With Chronic Hepatitis C Virus Infection

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Age, Continuous
44 years
STANDARD_DEVIATION 11.1 • n=99 Participants
Sex: Female, Male
Female
59 Participants
n=99 Participants
Sex: Female, Male
Male
60 Participants
n=99 Participants
Race/Ethnicity, Customized
Asian
2 Participants
n=99 Participants
Race/Ethnicity, Customized
White
117 Participants
n=99 Participants
Race/Ethnicity, Customized
Hispanic or Latino
0 Participants
n=99 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
119 Participants
n=99 Participants
Region of Enrollment
Sweden
16 Participants
n=99 Participants
Region of Enrollment
Russia
103 Participants
n=99 Participants
IL28b Status
CC
29 Participants
n=99 Participants
IL28b Status
CT
72 Participants
n=99 Participants
IL28b Status
TT
18 Participants
n=99 Participants
HCV RNA
6.1 log10 IU/mL
STANDARD_DEVIATION 0.54 • n=99 Participants
HCV RNA Category
< 800,000 IU/mL
38 Participants
n=99 Participants
HCV RNA Category
≥ 800,000 IU/mL
81 Participants
n=99 Participants

PRIMARY outcome

Timeframe: Posttreatment Week 12

Population: Full Analysis Set: participants who received at least 1 dose of study drug

SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ) at 12 weeks after stopping study treatment.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Percentage of Participants With Sustained Virologic Response (SVR) 12 Weeks After Discontinuation of Therapy (SVR12)
99.2 percentage of participants
Interval 95.4 to 100.0

PRIMARY outcome

Timeframe: Up to 12 weeks

Population: Safety analysis Set

Outcome measures

Outcome measures
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Percentage of Participants Who Permanently Discontinued Study Drug Due to an Adverse Event
0 percentage of participants

SECONDARY outcome

Timeframe: Posttreatment Week 4

Population: Full Analysis Set

SVR4 was defined as HCV RNA \< LLOQ at 4 weeks after stopping study treatment.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Percentage of Participants With HCV RNA < LLOQ at 4 Weeks After Discontinuation of Therapy (SVR4)
100.0 percentage of participants
Interval 96.6 to 100.0

SECONDARY outcome

Timeframe: Posttreatment Week 24

Population: Full Analysis Set

SVR24 was defined as HCV RNA \< LLOQ at 24 weeks after stopping study treatment.

Outcome measures

Outcome measures
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Percentage of Participants With HCV RNA < LLOQ at 24 Weeks After Discontinuation of Therapy (SVR24)
99.2 percentage of participants
Interval 95.4 to 100.0

SECONDARY outcome

Timeframe: Week 1

Population: Full Analysis Set

Outcome measures

Outcome measures
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Percentage of Participants With HCV RNA < LLOQ on Treatment at Week 1
21.0 percentage of participants
Interval 14.1 to 29.4

SECONDARY outcome

Timeframe: Week 2

Population: Full Analysis Set

Outcome measures

Outcome measures
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Percentage of Participants With HCV RNA < LLOQ on Treatment at Week 2
64.7 percentage of participants
Interval 55.4 to 73.2

SECONDARY outcome

Timeframe: Week 4

Population: Full analysis set

Outcome measures

Outcome measures
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Percentage of Participants With HCV RNA < LLOQ on Treatment at Week 4
96.6 percentage of participants
Interval 91.6 to 99.1

SECONDARY outcome

Timeframe: Week 8

Population: Full Analysis Set

Outcome measures

Outcome measures
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Percentage of Participants With HCV RNA < LLOQ on Treatment at Week 8
100.0 percentage of participants
Interval 96.9 to 100.0

SECONDARY outcome

Timeframe: Week 12

Population: Full Analysis Set

Outcome measures

Outcome measures
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Percentage of Participants With HCV RNA < LLOQ on Treatment at Week 12
100.0 percentage of participants
Interval 96.9 to 100.0

SECONDARY outcome

Timeframe: Baseline (Day 1); Week 1

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

Outcome measures

Outcome measures
Measure
SOF/VEL
n=118 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Change From Baseline in HCV RNA at Week 1
-4.17 log10 IU/mL
Standard Deviation 0.502

SECONDARY outcome

Timeframe: Baseline (Day 1); Week 2

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

Outcome measures

Outcome measures
Measure
SOF/VEL
n=117 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Change From Baseline in HCV RNA at Week 2
-4.70 log10 IU/mL
Standard Deviation 0.525

SECONDARY outcome

Timeframe: Baseline (Day 1); Week 4

Population: Full Analysis Set

Outcome measures

Outcome measures
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Change From Baseline in HCV RNA at Week 4
-4.90 log10 IU/mL
Standard Deviation 0.540

SECONDARY outcome

Timeframe: Baseline (Day 1); Week 8

Population: Full Analysis Set

Outcome measures

Outcome measures
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Change From Baseline in HCV RNA at Week 8
-4.93 log10 IU/mL
Standard Deviation 0.544

SECONDARY outcome

Timeframe: Baseline (Day 1); Week 12

Population: Full Analysis Set

Outcome measures

Outcome measures
Measure
SOF/VEL
n=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Change From Baseline in HCV RNA at Week 12
-4.93 log10 IU/mL
Standard Deviation 0.544

SECONDARY outcome

Timeframe: Up to Posttreatment Week 24

Population: Full Analysis Set

Virologic failure was defined as: * 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), or * 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=119 Participants
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Percentage of Participants With Virologic Failure
0.8 percentage of participants

Adverse Events

SOF/VEL

Serious events: 4 serious events
Other events: 29 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
SOF/VEL
n=119 participants at risk
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
Infections and infestations
Orchitis
0.84%
1/119 • Up to 12 weeks + 30 days
Safety Analysis Set
Injury, poisoning and procedural complications
Spinal compression fracture
0.84%
1/119 • Up to 12 weeks + 30 days
Safety Analysis Set
Nervous system disorders
Sciatica
0.84%
1/119 • Up to 12 weeks + 30 days
Safety Analysis Set
Renal and urinary disorders
Calculus urinary
0.84%
1/119 • Up to 12 weeks + 30 days
Safety Analysis Set

Other adverse events

Other adverse events
Measure
SOF/VEL
n=119 participants at risk
SOF/VEL (400/100 mg) FDC tablet administered orally once daily for 12 weeks, with or without food
General disorders
Asthenia
5.9%
7/119 • Up to 12 weeks + 30 days
Safety Analysis Set
General disorders
Fatigue
6.7%
8/119 • Up to 12 weeks + 30 days
Safety Analysis Set
Nervous system disorders
Headache
16.0%
19/119 • Up to 12 weeks + 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