Safety and Efficacy of Sofosbuvir/Velpatasvir/Voxilaprevir and Sofosbuvir/Velpatasvir in Adults With Chronic HCV Infection Who Have Not Previously Received Treatment With Direct-Acting Antiviral Therapy (POLARIS-2)

February 8, 2019 updated by: Gilead Sciences

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 Compared to Sofosbuvir/Velpatasvir for 12 Weeks in Direct-Acting Antiviral-Naïve Subjects With Chronic HCV Infection

The primary objectives of this study are to compare the efficacy, safety, and tolerability of treatment with sofosbuvir/velpatasvir/voxilaprevir (SOF/VEL/VOX) fixed dose combination (FDC) for 8 weeks with that of SOF/VEL FDC for 12 weeks in direct-acting antiviral-naive participants with chronic hepatitis C virus (HCV) infection.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

943

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Australia
    • New South Wales
      • Darlinghurst, New South Wales, Australia
    • Queensland
      • Herston, Queensland, Australia
    • Victoria
      • Fitzroy, Victoria, Australia
      • Melbourne, Victoria, Australia
    • Western Australia
      • Perth, Western Australia, Australia
  • Canada
    • Alberta
      • Calgary, Alberta, Canada
      • Edmonton, Alberta, Canada
    • British Columbia
      • Vancouver, British Columbia, Canada
    • Ontario
      • Brampton, Ontario, Canada
      • Ottawa, Ontario, Canada
      • Toronto, Ontario, Canada
    • Quebec
      • Montreal, Quebec, Canada
  • France
      • Bobigny, France
      • Clermont-Ferrand, France
      • Clichy, France
      • Creteil, France
      • Grenoble, France
      • Lille, France
      • Limoges, France
      • Lyon, France
      • Marseille, France
      • Montpellier, France
      • Nice, France
      • Orleans, France
      • Paris, France
      • Pessac, France
      • Rennes, France
      • Rouen, France
      • Strasbourg, France
      • Toulouse, France
      • Vandoeuvre-les-Nancy, France
      • Villejuif, France
  • Germany
      • Berlin, Germany
      • Bonn, Germany
      • Frankfurt am Main, Germany
      • Hamburg, Germany
      • Hannover, Germany
      • Köln, Germany
  • New Zealand
      • Christchurch, New Zealand
      • Grafton, New Zealand
  • Puerto Rico
      • San Juan, Puerto Rico
  • United Kingdom
      • London, United Kingdom
      • Manchester, United Kingdom
      • Nottingham, United Kingdom
      • Oxford, United Kingdom
      • Portsmouth, United Kingdom
  • United States
    • California
      • Long Beach, California, United States
      • Los Angeles, California, United States
      • Palo Alto, California, United States
      • Pasadena, California, United States
      • Rialto, California, United States
      • San Diego, California, United States
      • San Francisco, California, United States
    • Colorado
      • Aurora, Colorado, United States
      • Englewood, Colorado, United States
    • District of Columbia
      • Washington, District of Columbia, United States
    • Florida
      • Gainesville, Florida, United States
      • Miami, Florida, United States
      • Orlando, Florida, United States
      • Wellington, Florida, United States
    • Georgia
      • Atlanta, Georgia, United States
      • Marietta, Georgia, United States
    • Illinois
      • Chicago, Illinois, United States
    • Indiana
      • Indianapolis, Indiana, United States
    • Louisiana
      • Bastrop, Louisiana, United States
    • Maryland
      • Baltimore, Maryland, United States
      • Catonsville, Maryland, United States
    • Massachusetts
      • Boston, Massachusetts, United States
    • Michigan
      • Ann Arbor, Michigan, United States
      • Detroit, Michigan, United States
    • Missouri
      • Kansas City, Missouri, United States
      • Saint Louis, Missouri, United States
    • New Jersey
      • Hillsborough, New Jersey, United States
    • New York
      • Bronx, New York, United States
      • Manhasset, New York, United States
      • New York, New York, United States
    • North Carolina
      • Asheville, North Carolina, United States
      • Fayetteville, North Carolina, United States
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States
      • Pittsburgh, Pennsylvania, United States
    • Rhode Island
      • Providence, Rhode Island, United States
    • Tennessee
      • Germantown, Tennessee, United States
      • Knoxville, Tennessee, United States
      • Nashville, Tennessee, United States
    • Texas
      • Houston, Texas, United States
      • Live Oak, Texas, United States
      • San Antonio, Texas, United States
    • Utah
      • Murray, Utah, United States
    • Virginia
      • Falls Church, Virginia, United States
      • Norfolk, Virginia, United States
      • Richmond, Virginia, United States
    • Washington
      • Seattle, Washington, United States
    • Wisconsin
      • Madison, Wisconsin, United States

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Key Inclusion Criteria:

  • Willing and able to provide written informed consent
  • HCV RNA ≥ 10^4 IU/mL at screening
  • Chronic HCV infection (≥ 6 months)
  • HCV treatment naive or treatment experienced with an interferon (IFN)-based regimen
  • Use of protocol specified methods of contraception

Key Exclusion Criteria:

  • Current or prior history of clinically significant illness that may interfere with participation in the study
  • Screening ECG with clinically significant abnormalities
  • Laboratory parameters outside the acceptable range at screening
  • Pregnant or nursing female
  • Chronic liver disease not caused by HCV
  • Infection with hepatitis B virus (HBV) or human immunodeficiency virus (HIV)

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: SOF/VEL/VOX
SOF/VEL/VOX tablet for 8 weeks
Drug: SOF/VEL/VOX
400/100/100 mg tablet administered orally once daily with food
Other Names:
  • GS-7977/GS-5816/GS-9857
  • Vosevi®
ACTIVE_COMPARATOR: SOF/VEL 12 weeks
SOF/VEL tablet for 12 weeks
Drug: SOF/VEL
400/100 mg tablet administered orally once daily with or without food
Other Names:
  • Epclusa®
  • GS-7977/GS-5816

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Participants With Sustained Virologic Response (SVR) 12 Weeks After Discontinuation of Therapy (SVR12)
Time Frame: Posttreatment Week 12
SVR12 was defined as HCV RNA < the lower limit of quantitation (LLOQ) at 12 weeks after stopping study treatment.
Posttreatment Week 12
Percentage of Participants Who Permanently Discontinue Study Drug Due to an Adverse Event
Time Frame: Up to 12 weeks
Up to 12 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Participants With SVR at 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24)
Time Frame: Posttreatment Weeks 4 and 24
SVR4 and SVR 24 were defined as HCV RNA < LLOQ at 4 and 24 weeks after stopping study treatment, respectively.
Posttreatment Weeks 4 and 24
Percentage of Participants With HCV RNA < LLOQ On Treatment
Time Frame: Weeks 1, 2, 4, 8, and 12
Weeks 1, 2, 4, 8, and 12
Change From Baseline in HCV RNA
Time Frame: Baseline; Weeks 1, 2, 4, 8, and 12
Baseline; Weeks 1, 2, 4, 8, and 12
Percentage of Participants With Virologic Failure
Time Frame: Up to Posttreatment Week 24

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
Up to Posttreatment Week 24

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Gilead Sciences

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

November 16, 2015

Primary Completion (ACTUAL)

October 10, 2016

Study Completion (ACTUAL)

January 11, 2017

Study Registration Dates

First Submitted

November 16, 2015

First Submitted That Met QC Criteria

November 16, 2015

First Posted (ESTIMATE)

November 18, 2015

Study Record Updates

Last Update Posted (ACTUAL)

March 5, 2019

Last Update Submitted That Met QC Criteria

February 8, 2019

Last Verified

October 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • GS-US-367-1172
  • 2015-003460-36 (EUDRACT_NUMBER)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Qualified external researchers may request IPD for this study after study completion. For more information, please visit our website at https://www.gilead.com/about/ethics-and-code-of-conduct/policies.

IPD Sharing Time Frame

18 months after study completion

IPD Sharing Access Criteria

A secured external environment with username, password, and RSA code.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Hepatitis C

Clinical Trials on SOF/VEL/VOX

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Uruguay

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe