Safety and Efficacy of Ledipasvir/Sofosbuvir Fixed Dose Combination, With or Without Ribavirin, in Egyptian Adults With Chronic Genotype 4 HCV Infection

October 19, 2018 updated by: Gilead Sciences

A Phase 3, Randomized, Open-Label, Study to Evaluate the Safety and Efficacy of Ledipasvir/Sofosbuvir Fixed Dose Combination, With or Without Ribavirin, in Egyptian Adults With Chronic Genotype 4 HCV Infection

The primary objective of this study was to evaluate the efficacy, safety, and tolerability of ledipasvir/sofosbuvir (LDV/SOF) fixed dose combination (FDC) with or without ribavirin (RBV) in Egyptian adults with chronic genotype 4 hepatitis C virus (HCV) infection.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

255

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

  • Egypt
      • Cairo, Egypt, 11796
      • Cairo, Egypt, 11559
      • Mansourah, Egypt
      • Shibin Al Kawm, Egypt

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
  • Chronic HCV infection (≥ 6 months) documented by medical history or liver biopsy
  • HCV genotype 4 at screening
  • HCV treatment naive or prior participation in this study or study GS-US-334-0138 (Cohorts 1 and 2 only)
  • Cohort 3 only: HCV treatment-experienced (previously received therapy for HCV infection with an interferon (IFN)-containing regimen, with or without RBV and/or an HCV NS3/NS4A protease inhibitor (PI)
  • Body mass index (BMI) ≥ 18 kg/m^2
  • Screening laboratory values within defined thresholds
  • Use of effective protocol-approved contraception methods

Key Exclusion Criteria:

  • History of clinically-significant illness or any other major medical disorder that may interfere with treatment, assessment or compliance with the protocol
  • Infection with hepatitis B virus (HBV) or human immunodeficiency virus (HIV)
  • Pregnant or nursing females or male with pregnant female partner
  • Clinically-relevant drug or alcohol abuse within 12 months of screening

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 Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: LDV/SOF 8 wk TN (Cohort 1, Group 1)
LDV/SOF for 8 weeks (treatment-naive (TN))
Drug: LDV/SOF
90/400 mg FDC tablet administered orally once daily
Other Names:
  • Harvoni®
  • GS-5885/GS-7977
Experimental: LDV/SOF+RBV 8 wk TN (Cohort 1, Group 2)
LDV/SOF+RBV for 8 weeks (treatment-naive)
Drug: LDV/SOF
90/400 mg FDC tablet administered orally once daily
Other Names:
  • Harvoni®
  • GS-5885/GS-7977
Drug: RBV
Tablets administered orally in a divided daily dose based on weight (< 75 kg = 1000 mg and ≥ 75 kg = 1200 mg)
Experimental: LDV/SOF 12 wk TN (Cohort 1, Group 3)
LDV/SOF for 12 weeks (treatment-naive)
Drug: LDV/SOF
90/400 mg FDC tablet administered orally once daily
Other Names:
  • Harvoni®
  • GS-5885/GS-7977
Experimental: LDV/SOF+RBV 12 wk TN (Cohort 1, Group 4)
LDV/SOF+RBV for 12 weeks (treatment-naive)
Drug: LDV/SOF
90/400 mg FDC tablet administered orally once daily
Other Names:
  • Harvoni®
  • GS-5885/GS-7977
Drug: RBV
Tablets administered orally in a divided daily dose based on weight (< 75 kg = 1000 mg and ≥ 75 kg = 1200 mg)
Experimental: LDV/SOF+RBV 12 wk TE (Cohort 2)
Treatment-experienced (TE) participants who completed treatment in Gilead sponsored study GS-US-334-0138 or in Cohort 1 of this study and did not achieve SVR12 will receive LDV/SOF+RBV for 12 weeks.
Drug: LDV/SOF
90/400 mg FDC tablet administered orally once daily
Other Names:
  • Harvoni®
  • GS-5885/GS-7977
Drug: RBV
Tablets administered orally in a divided daily dose based on weight (< 75 kg = 1000 mg and ≥ 75 kg = 1200 mg)
Experimental: LDV/SOF 12 wk TE (Cohort 3, Group 1)
LDV/SOF for 12 weeks (treatment-experienced)
Drug: LDV/SOF
90/400 mg FDC tablet administered orally once daily
Other Names:
  • Harvoni®
  • GS-5885/GS-7977
Experimental: LDV/SOF+RBV 12 wk TE (Cohort 3, Group 2)
LDV/SOF+RBV for 12 weeks (treatment-experienced)
Drug: LDV/SOF
90/400 mg FDC tablet administered orally once daily
Other Names:
  • Harvoni®
  • GS-5885/GS-7977
Drug: RBV
Tablets administered orally in a divided daily dose based on weight (< 75 kg = 1000 mg and ≥ 75 kg = 1200 mg)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Participants With Sustained Virologic Response 12 Weeks After Discontinuation of Therapy (SVR12)
Time Frame: Posttreatment Week 12
SVR12 was defined as HCV RNA < the lower limit of quantitation (LLOQ) 12 weeks following the last dose of study drug.
Posttreatment Week 12
Percentage of Participants Who Discontinued LDV/SOF Drug Due to an Adverse Event (AE)
Time Frame: 12 weeks
12 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Participants With Sustained Virologic Response 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24)
Time Frame: Posttreatment Weeks 4 and 24
SVR4 and SVR24 were defined as HCV RNA < LLOQ 4 and 24 weeks after the last dose of study drug, respectively.
Posttreatment Weeks 4 and 24
Percentage of Participants With Overall Virologic Failure
Time Frame: Up to Posttreatment Week 24

Virologic failure was defined as

  • On-treatment virologic failure

    • confirmed HCV RNA ≥ LLOQ after having previously had HCV RNA < LLOQ, while on treatment (ie, breakthrough),
    • confirmed > 1 log10 IU/mL increase in HCV RNA from nadir while on treatment (ie, rebound),
    • HCV RNA persistently ≥ LLOQ through 8 weeks of treatment (ie, nonresponse)

  • Relapse

    • HCV RNA ≥ LLOQ during the posttreatment period having achieved HCV RNA < LLOQ at end of treatment, confirmed with 2 consecutive values or last available posttreatment measurement
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)

September 7, 2015

Primary Completion (Actual)

November 11, 2016

Study Completion (Actual)

February 4, 2017

Study Registration Dates

First Submitted

June 27, 2015

First Submitted That Met QC Criteria

June 27, 2015

First Posted (Estimate)

July 1, 2015

Study Record Updates

Last Update Posted (Actual)

November 16, 2018

Last Update Submitted That Met QC Criteria

October 19, 2018

Last Verified

November 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • GS-US-337-1643

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 http://www.gilead.com/research/disclosure-and-transparency.

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

product manufactured in and exported from the U.S.

Yes

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 Virus Infection

Clinical Trials on LDV/SOF

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Mauritius

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe