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Completed

NCT Number: NCT01768286

Safety and Efficacy of Ledipasvir/Sofosbuvir Fixed-Dose Combination ± Ribavirin in Treatment-Experienced Subjects With Genotype 1 HCV Infection

This study is to evaluate the safety, tolerability, and antiviral efficacy of ledipasvir/sofosbuvir fixed dose combination (FDC) with or without ribavirin (RBV) administered for 12 or 24 weeks in treatment-experienced subjects with chronic genotype 1 hepatitis C virus (HCV) infection.

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Key information

Conditions

Chronic Hepatitis C Virus Blood-Borne Infections Chronic Disease Communicable Diseases Digestive System Diseases Disease Attributes Enterovirus Infections Flaviviridae Infections Hepatitis Hepatitis C Hepatitis C, Chronic Hepatitis, Chronic Hepatitis, Viral, Human Infections Liver Diseases Pathologic Processes Pathological Conditions, Signs and Symptoms Picornaviridae Infections RNA Virus Infections Virus Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Phoenix, Arizona, United States

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age > 18, with chronic genotype 1 HCV infection
  • HCV treatment-experienced, including patients who have previously failed a nonstructural protein (NS)3/4A protease inhibitor plus pegylated interferon (PEG)/RBV regimen
  • HCV RNA > 10,000 IU/mL at screening
  • Cirrhosis determination; a liver biopsy may be required
  • Screening laboratory values within defined thresholds
  • Use of two effective contraception methods if female of childbearing potential or sexually active male

Exclusion criteria

  • Pregnant or nursing female or male with pregnant female partner
  • Coinfection with HIV or hepatitis B virus
  • Current or prior history of clinical hepatic decompensation
  • Hepatocellular carcinoma or other malignancy (with exception of certain resolved skin cancers)
  • Chronic use of systemic immunosuppressive agents
  • History of clinically significant illness or any other medical disorder that may interfere with subject treatment, assessment or compliance with the protocol

Treatment and study plan

LDV/SOF

Drug

Ledipasvir (LDV) 90 mg/sofosbuvir (SOF) 400 mg fixed-dose combination (FDC) tablet administered orally once daily

Other names: Harvoni®, GS-5885/GS-7997

RBV

Drug

Ribavirin (RBV) tablets administered orally in a divided daily dose according to package insert weight-based dosing recommendations (< 75 kg = 1000 mg and ≥ 75 kg = 1200 mg)

Primary outcomes

  1. 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; ie, 25 IU/mL) 12 weeks following the last dose of study drug.

  2. Incidence of Adverse Events Leading to Permanent Discontinuation From Any Study Drug

    Time frame: Up to 24 weeks

    The percentage of participants who experienced an adverse event leading to permanent discontinuation from any study drug was summarized.

Secondary outcomes

  1. 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 SVR24 were defined as HCV RNA < LLOQ at 4 and 24 weeks following the last dose of study drug, respectively.

  2. Percentage of Participants With HCV RNA < LLOQ at Week 1

    Time frame: Week 1

  3. Percentage of Participants With HCV RNA < LLOQ at Week 2

    Time frame: Week 2

  4. Percentage of Participants With HCV RNA < LLOQ at Week 4

    Time frame: Week 4

  5. Percentage of Participants With HCV RNA < LLOQ at Week 8

    Time frame: Week 8

  6. Percentage of Participants With HCV RNA < LLOQ at Week 12

    Time frame: Week 12

  7. Percentage of Participants With HCV RNA < LLOQ at Week 24

    Time frame: Week 24

  8. Change From Baseline in HCV RNA at Week 1

    Time frame: Baseline; Week 1

  9. Change From Baseline in HCV RNA at Week 2

    Time frame: Baseline; Week 2

  10. Change From Baseline in HCV RNA at Week 4

    Time frame: Baseline; Week 4

  11. Change From Baseline in HCV RNA at Week 8

    Time frame: Baseline; Week 8

  12. Percentage of Participants With Virologic Failure

    Time frame: Baseline to posttreatment Week 24

    Virologic failure was defined as on-treatment virologic failure or virologic relapse.

    • On-Treatment 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)

    Virologic relapse was defined as confirmed HCV RNA ≥ LLOQ during the posttreatment period having achieved HCV RNA < LLOQ at last on-treatment visit.

Sponsors and collaborators

Lead sponsor

Gilead Sciences

Industry

Registry information

Official study title

A Phase 3, Multicenter, Randomized, Open-Label Study to Investigate the Efficacy and Safety of Sofosbuvir/GS-5885 Fixed-Dose Combination ± Ribavirin for 12 and 24 Weeks in Treatment-Experienced Subjects With Chronic Genotype 1 HCV Infection

Acronym: ION-2

Important dates

Study start
2013
Primary completion
2013
Study completion
2014
First posted
Jan 15, 2013
Registry last updated
Nov 16, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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