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Hepatitis CPhase 3POLARIS-2NCT02607800

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

A Phase 3 study testing SOF/VEL/VOX and SOF/VEL in people with Hepatitis C, run by Gilead Sciences at 93 sites in 8 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hepatitis C
What is being tested?
SOF/VEL/VOX and SOF/VEL
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
943 participants
Where
93 sitesin 8 countries
Study dates
16 Nov 2015to 11 Jan 2017
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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

Who cannot join

  • 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.

Trial locations and contacts

93 sites in 8 countries.

93 sites in 8 countries

United States47 sites
  • Study site

    Ann Arbor, Michigan

  • Study site

    Asheville, North Carolina

  • Study site

    Atlanta, Georgia

  • Study site

    Aurora, Colorado

  • Study site

    Baltimore, Maryland

  • Study site

    Bastrop, Louisiana

  • Study site

    Boston, Massachusetts

  • Study site

    Catonsville, Maryland

  • Study site

    Chicago, Illinois

  • Study site

    Detroit, Michigan

  • Study site

    Englewood, Colorado

  • Study site

    Falls Church, Virginia

  • Study site

    Fayetteville, North Carolina

  • Study site

    Gainesville, Florida

  • Study site

    Germantown, Tennessee

  • Study site

    Hillsborough, New Jersey

  • Study site

    Houston, Texas

  • Study site

    Indianapolis, Indiana

  • Study site

    Kansas City, Missouri

  • Study site

    Knoxville, Tennessee

  • Study site

    Live Oak, Texas

  • Study site

    Long Beach, California

  • Study site

    Los Angeles, California

  • Study site

    Madison, Wisconsin

  • Study site

    Manhasset, New York

  • Study site

    Marietta, Georgia

  • Study site

    Miami, Florida

  • Study site

    Murray, Utah

  • Study site

    Nashville, Tennessee

  • Study site

    New York, New York

  • Study site

    Norfolk, Virginia

  • Study site

    Orlando, Florida

  • Study site

    Palo Alto, California

  • Study site

    Pasadena, California

  • Study site

    Philadelphia, Pennsylvania

  • Study site

    Pittsburgh, Pennsylvania

  • Study site

    Providence, Rhode Island

  • Study site

    Rialto, California

  • Study site

    Richmond, Virginia

  • Study site

    San Antonio, Texas

  • Study site

    San Diego, California

  • Study site

    San Francisco, California

  • Study site

    Seattle, Washington

  • Study site

    St Louis, Missouri

  • Study site

    The Bronx, New York

  • Study site

    Washington D.C., District of Columbia

  • Study site

    Wellington, Florida

Other trials in United States

France20 sites
  • Study site

    Bobigny

  • Study site

    Clermont-Ferrand

  • Study site

    Clichy

  • Study site

    Créteil

  • Study site

    Grenoble

  • Study site

    Lille

  • Study site

    Limoges

  • Study site

    Lyon

  • Study site

    Marseille

  • Study site

    Montpellier

  • Study site

    Nice

  • Study site

    Orléans

  • Study site

    Paris

  • Study site

    Pessac

  • Study site

    Rennes

  • Study site

    Rouen

  • Study site

    Strasbourg

  • Study site

    Toulouse

  • Study site

    Vandœuvre-lès-Nancy

  • Study site

    Villejuif

Other trials in France

Canada7 sites
  • Study site

    Brampton, Ontario

  • Study site

    Calgary, Alberta

  • Study site

    Edmonton, Alberta

  • Study site

    Montreal, Quebec

  • Study site

    Ottawa, Ontario

  • Study site

    Toronto, Ontario

  • Study site

    Vancouver, British Columbia

Other trials in Canada

Germany6 sites
  • Study site

    Berlin

  • Study site

    Bonn

  • Study site

    Cologne

  • Study site

    Frankfurt am Main

  • Study site

    Hamburg

  • Study site

    Hanover

Other trials in Germany

Australia5 sites
  • Study site

    Darlinghurst, New South Wales

  • Study site

    Fitzroy, Victoria

  • Study site

    Herston, Queensland

  • Study site

    Melbourne, Victoria

  • Study site

    Perth, Western Australia

Other trials in Australia

United Kingdom5 sites
  • Study site

    London

  • Study site

    Manchester

  • Study site

    Nottingham

  • Study site

    Oxford

  • Study site

    Portsmouth

Other trials in United Kingdom

New Zealand2 sites
  • Study site

    Christchurch

  • Study site

    Grafton

Other trials in New Zealand

Puerto Rico1 site
  • Study site

    San Juan

Other trials in Puerto Rico

About this study

Official title: 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.

Conditions
Hepatitis C
Being tested
SOF/VEL/VOX, SOF/VEL
Keywords
Chronic Hepatitis C Infection
Medical subject headings
Hepatitis C

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SOF/VEL/VOXDrug

    Also called GS-7977/GS-5816/GS-9857, Vosevi®

    400/100/100 mg tablet administered orally once daily with food

  • SOF/VELDrug

    Also called GS-7977/GS-5816, Epclusa®

    400/100 mg tablet administered orally once daily with or without food

Study groups in NCT02607800
Study groupRoleWhat they receive
SOF/VEL/VOXExperimentalSOF/VEL/VOX tablet for 8 weeks
Receives: Drug: SOF/VEL/VOX
SOF/VEL 12 weeksActive comparatorSOF/VEL tablet for 12 weeks
Receives: Drug: SOF/VEL

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants With Sustained Virologic Response (SVR) 12 Weeks After Discontinuation of Therapy (SVR12)

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

    Measured: Posttreatment Week 12

  2. Percentage of Participants Who Permanently Discontinue Study Drug Due to an Adverse Event

    Measured: Up to 12 weeks

Secondary outcomes (4)
  1. Percentage of Participants With SVR at 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24)

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

    Measured: Posttreatment Weeks 4 and 24

  2. Percentage of Participants With HCV RNA < LLOQ On Treatment

    Measured: Weeks 1, 2, 4, 8, and 12

  3. Change From Baseline in HCV RNA

    Measured: Baseline; Weeks 1, 2, 4, 8, and 12

  4. Percentage of Participants With Virologic Failure

    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

    Measured: Up to Posttreatment Week 24

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Nov 2015 (estimated)
  2. Study start16 Nov 2015
  3. Primary completion10 Oct 2016
  4. Study completion11 Jan 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
943 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02607800
Sponsor's protocol ID
GS-US-367-1172
Other IDs
2015-003460-36, 2015
Acronym
POLARIS-2
Status last verified
Oct 2017
First submitted
16 Nov 2015
Last updated
5 Mar 2019
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: 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.

Publications

  • Jacobson IM, Asselah T, Nahass R, Bhandari BR, Tran A, Hyland RH, et al. A Randomized Phase 3 Trial of Sofosbuvir/Velpatasvir/Voxilaprevir for 8 Weeks Compared to Sofosbuvir/Velpatasvir for 12 Weeks in DAA-Naïve Genotype 1-6 HCV-Infected Patients: The POLARIS-2 Study [Abstract LB-12]. Hepatology AASLD Abstracts 2016;64 (6 (suppl)):1126A.

  • Jacobson IM, Lawitz E, Gane EJ, Willems BE, Ruane PJ, Nahass RG, Borgia SM, Shafran SD, Workowski KA, Pearlman B, Hyland RH, Stamm LM, Svarovskaia E, Dvory-Sobol H, Zhu Y, Subramanian GM, Brainard DM, McHutchison JG, Brau N, Berg T, Agarwal K, Bhandari BR, Davis M, Feld JJ, Dore GJ, Stedman CAM, Thompson AJ, Asselah T, Roberts SK, Foster GR. Efficacy of 8 Weeks of Sofosbuvir, Velpatasvir, and Voxilaprevir in Patients With Chronic HCV Infection: 2 Phase 3 Randomized Trials. Gastroenterology. 2017 Jul;153(1):113-122. doi: 10.1053/j.gastro.2017.03.047. Epub 2017 Apr 5.

    PubMed 28390869

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing SOF/VEL/VOX and SOF/VEL in people with Hepatitis C, run by Gilead Sciences at 93 sites in 8 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Mar 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 93 sites in United States, France, Canada, Germany, Australia and 3 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 8 Nov 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Participants With Sustained Virologic Response (SVR) 12 Weeks After Discontinuation of Therapy (SVR12) (time frame: Posttreatment Week 12). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02607800, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Mar 2019.

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