Clinical Trial Results:
A Phase 3, Global, Multicenter, Randomized, Open-Label Study to Investigate the Safety and Efficacy of Sofosbuvir/Velpatasvir/GS-9857 Fixed-Dose Combination for 8 Weeks and Sofosbuvir/Velpatasvir for 12 Weeks in Subjects with Chronic Genotype 3 HCV Infection and Cirrhosis
Summary
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EudraCT number |
2015-002996-12 |
Trial protocol |
DE GB FR |
Global end of trial date |
02 Jan 2017
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Results information
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Results version number |
v1(current) |
This version publication date |
16 Dec 2017
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First version publication date |
16 Dec 2017
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
GS-US-367-1173
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT02639338 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Gilead Sciences
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Sponsor organisation address |
333 Lakeside Drive , Foster City, CA, United States, 94404
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Public contact |
Clinical Trials Mailbox, Gilead Sciences International Ltd
, ClinicalTrialDisclosures@gilead.com
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Scientific contact |
Clinical Trials Mailbox, Gilead Sciences International Ltd
, ClinicalTrialDisclosures@gilead.com
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
02 Jan 2017
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Is this the analysis of the primary completion data? |
No
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Global end of trial reached? |
Yes
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Global end of trial date |
02 Jan 2017
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
The primary objective of this study was to evaluate the efficacy, safety, and tolerability of treatment with sofosbuvir/velpatasvir/voxilaprevir (SOF/VEL/VOX) fixed-dose combination (FDC) for 8 weeks and of treatment with sofosbuvir/velpatasvir (SOF/VEL) FDC for 12 weeks in participants naive to direct-acting antivirals (DAA) with chronic genotype 3 HCV infection and cirrhosis.
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Protection of trial subjects |
The protocol and consent/assent forms were submitted by each investigator to a duly constituted Independent Ethics Committee (IEC) or Institutional Review Board (IRB) for review and approval before study initiation. All revisions to the consent/assent forms (if applicable) after initial IEC/IRB approval were submitted by the investigator to the IEC/IRB for review and approval before implementation in accordance with regulatory requirements.
This study was conducted in accordance with recognized international scientific and ethical standards, including but not limited to the International Conference on Harmonization guideline for Good Clinical Practice (ICH GCP) and the original principles embodied in the Declaration of Helsinki.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
23 Dec 2015
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
Yes
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
United Kingdom: 15
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Country: Number of subjects enrolled |
France: 26
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Country: Number of subjects enrolled |
Germany: 18
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Country: Number of subjects enrolled |
New Zealand: 5
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Country: Number of subjects enrolled |
Canada: 34
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Country: Number of subjects enrolled |
Australia: 26
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Country: Number of subjects enrolled |
United States: 96
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Worldwide total number of subjects |
220
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EEA total number of subjects |
59
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
0
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Adults (18-64 years) |
204
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From 65 to 84 years |
16
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85 years and over |
0
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Recruitment
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Recruitment details |
Participants were enrolled at study sites in North America, Europe, and Asia Pacific. The first participant was screened on 23 December 2015. The last study visit occurred on 02 January 2017. | |||||||||||||||||||||
Pre-assignment
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Screening details |
315 participants were screened. | |||||||||||||||||||||
Period 1
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Period 1 title |
Overall Study (overall period)
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Is this the baseline period? |
Yes | |||||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Not blinded | |||||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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SOF/VEL/VOX 8 Weeks | |||||||||||||||||||||
Arm description |
SOF/VEL/VOX (400/100/100 mg) FDC tablet orally once daily with food for 8 weeks | |||||||||||||||||||||
Arm type |
Experimental | |||||||||||||||||||||
Investigational medicinal product name |
Sofosbuvir/Velpatasvir/Voxilaprevir
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Investigational medicinal product code |
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Other name |
Vosevi®, SOF/VEL/VOX
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
400/100/100 mg once daily with food for 8 weeks
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Arm title
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SOF/VEL 12 Weeks | |||||||||||||||||||||
Arm description |
SOF/VEL (400/100 mg) FDC tablet orally once daily without regard to food for 12 weeks | |||||||||||||||||||||
Arm type |
Experimental | |||||||||||||||||||||
Investigational medicinal product name |
Sofosbuvir/Velpatasvir
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Investigational medicinal product code |
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Other name |
Epclusa®, SOF/VEL
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
400/100 mg once daily without regard to food for 12 weeks
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Notes [1] - The number of subjects reported to be in the baseline period are not the same as the worldwide number enrolled in the trial. It is expected that these numbers will be the same. Justification: 1 participant in SOF/VEL group who was randomized but not treated is not included in the subject disposition table. |
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Baseline characteristics reporting groups
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Reporting group title |
SOF/VEL/VOX 8 Weeks
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Reporting group description |
SOF/VEL/VOX (400/100/100 mg) FDC tablet orally once daily with food for 8 weeks | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
SOF/VEL 12 Weeks
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Reporting group description |
SOF/VEL (400/100 mg) FDC tablet orally once daily without regard to food for 12 weeks | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
SOF/VEL/VOX 8 Weeks
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Reporting group description |
SOF/VEL/VOX (400/100/100 mg) FDC tablet orally once daily with food for 8 weeks | ||
Reporting group title |
SOF/VEL 12 Weeks
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Reporting group description |
SOF/VEL (400/100 mg) FDC tablet orally once daily without regard to food for 12 weeks |
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End point title |
Percentage of Participants With Sustained Virologic Response (SVR) 12 Weeks After Discontinuation of Therapy (SVR12) [1] | ||||||||||||
End point description |
1) SVR12 was defined as HCV RNA < the lower limit of quantitation (LLOQ) at 12 weeks after stopping study treatment.
2) Full Analysis Set: all randomized/enrolled participants who took at least 1 dose of the study drug
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End point type |
Primary
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End point timeframe |
Posttreatment Week 12
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Notes [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point. Justification: The statistical analysis of this primary efficacy endpoint is provided in the attachment. |
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Attachments |
Untitled (Filename: Primary Efficacy Endpoint Analysis.pdf) |
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No statistical analyses for this end point |
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End point title |
Percentage of Participants Who Permanently Discontinue Study Drug Due to an Adverse Event [2] | ||||||||||||
End point description |
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End point type |
Primary
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End point timeframe |
Up to 12 weeks
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Notes [2] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point. Justification: No statistical comparison was planned or performed. |
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No statistical analyses for this end point |
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End point title |
Percentage of Participants With SVR at 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24) | ||||||||||||||||||
End point description |
1) SVR4 and SVR24 were defined as HCV RNA < LLOQ at 4 and 24 weeks after stopping study treatment, respectively.
2) Full Analysis Set
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End point type |
Secondary
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End point timeframe |
Posttreatment Weeks 4 and 24
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No statistical analyses for this end point |
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End point title |
Percentage of Participants With HCV RNA < LLOQ On Treatment | |||||||||||||||||||||||||||
End point description |
1) Percentage of participants in Full Analysis Set with on-treatment data were analyzed.
2) 999 = Not Applicable (NA) (The treatment for this group was only 8 weeks.)
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End point type |
Secondary
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End point timeframe |
Weeks 1, 2, 4, 8 and 12
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No statistical analyses for this end point |
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End point title |
Change From Baseline in HCV RNA | |||||||||||||||||||||||||||
End point description |
1) Participants in the Full Analysis Set with available data were analyzed.
2) 999 = Not Applicable (NA) (The treatment for this group was only 8 weeks.)
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End point type |
Secondary
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End point timeframe |
Weeks 1, 2, 4, 8 and 12
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No statistical analyses for this end point |
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End point title |
Percentage of Participants With Virologic Failure | ||||||||||||
End point description |
1) Virologic failure was defined as either on‐treatment virologic failure or virologic relapse. On‐treatment
virologic failure = either 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). Virologic relapse = confirmed HCV RNA ≥ LLOQ during
the posttreatment period having achieved HCV RNA < LLOQ at last on‐treatment visit.
2) Full Analysis Set
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End point type |
Secondary
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End point timeframe |
Up to Posttreatment Week 24
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No statistical analyses for this end point |
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Adverse events information
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Timeframe for reporting adverse events |
Up to 12 weeks plus 30 days
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Adverse event reporting additional description |
Safety Analysis Set
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Assessment type |
Systematic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
19.0
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Reporting groups
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Reporting group title |
SOF/VEL/VOX 8 Weeks
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Reporting group description |
SOF/VEL/VOX (400/100/100 mg) FDC tablet orally once daily with food for 8 weeks | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
SOF/VEL 12 Weeks
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Reporting group description |
SOF/VEL (400/100 mg) FDC tablet once daily without regard to food for 12 weeks | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 5% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? No | |||
Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
None reported |