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Safety and Efficacy Study of Sofosbuvir Plus Ribavirin in Treatment-Naive Adults With Genotype 1 and 3 Chronic HCV Infection

Phase 3
Completed
Conditions
Hepatitis C
Interventions
Drug: SOF
Registration Number
NCT01896193
Lead Sponsor
Gilead Sciences
Brief Summary

This study will evaluate the antiviral efficacy, safety, and tolerability of sofosbuvir plus ribavirin administered for 16 weeks and 24 weeks in participants with chronic genotype 1 (GT1) or genotype 3 (GT3) hepatitis C virus (HCV) infection.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
127
Inclusion Criteria
  • Confirmed chronic genotype 1 or 3 HCV infection
  • HCV treatment-naive
  • Individuals will have cirrhosis status assessment; liver biopsy may be required.
  • Screening laboratory values within predefined 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
  • Infection with hepatitis B virus (HBV) or human immunodeficiency virus (HIV)
  • Contraindication to ribavirin therapy
  • Excessive alcohol ingestion as defined by protocol
  • History of solid organ transplantation
  • Current or prior history of clinical hepatic decompensation
  • History of clinically significant illness or any other medical disorder that may interfere with the individual's treatment, assessment, or compliance with the protocol

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
SOF+RBV 24 WeeksSOFSOF+RBV for 24 weeks
SOF+RBV 16 WeeksSOFSOF+RBV for 16 weeks
SOF+RBV 24 WeeksRBVSOF+RBV for 24 weeks
SOF+RBV 16 WeeksRBVSOF+RBV for 16 weeks
Primary Outcome Measures
NameTimeMethod
Incidence of Adverse Events Leading to Permanent Discontinuation of Study Drug(s)Up to 24 weeks

The percentage of participants permanently discontinuing any study drug due to an adverse event was summarized.

Percentage of Participants With Sustained Virologic Response (SVR) at 12 Weeks After Discontinuation of Therapy (SVR12)Posttreatment Week 12

SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ; ie, 25 IU/mL) at 12 weeks after stopping study treatment.

Secondary Outcome Measures
NameTimeMethod
Percentage of Participants With Sustained Virologic Response at 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24)Posttreatment Weeks 4 and 24

SVR4 and SVR 24 were defined as HCV RNA \< LLOQ at 4 and 24 weeks following the last dose of study drug, respectively.

Percentage of Participants Experiencing On-treatment Virologic FailureUp to 24 weeks

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)

Percentage of Participants Experiencing Virologic RelapseUp to Posttreatment Week 12

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

Trial Locations

Locations (16)

Institute of Nutrition of Academy of Sciences

🇷🇺

Moscow, Russian Federation

Saint-Petersburg Center for Prevention and Control of AIDS and Infectious Diseases

🇷🇺

Saint-Petersburg, Russian Federation

Central Scientific Research Institution of Gastroenterology of Moscow Healthcare Department

🇷🇺

Moscow, Russian Federation

Medical Military Academy n.a. S.M. Kirov

🇷🇺

Saint-Petersburg, Russian Federation

Institution of Tumen Region

🇷🇺

Moscow, Russian Federation

City Clinical Hospital 24

🇷🇺

Moscow, Russian Federation

Institution of High Professional Education First Moscow State Medical University

🇷🇺

Moscow, Russian Federation

Infectious Clinical Hospital No. 1

🇷🇺

Moscow, Russian Federation

Central Clinical Hospital of the Russian Academy of Sciences

🇷🇺

Moscow, Russian Federation

Central Scientific and Research Institute of Epidemiology of Rospotrebnadzor

🇷🇺

Moscow, Russian Federation

Medical Company Hepatolog

🇷🇺

Samara, Russian Federation

Clinical Diagnostics and Research Center of Federal Bedgetary Institution

🇷🇺

Moscow, Russian Federation

Scientific Research Institution of Emergency Care n.a. N.V. Sclifosovskiy of Moscow

🇷🇺

Moscow, Russian Federation

Institution of Healthcare of Sverdlovsk Region

🇷🇺

Moscow, Russian Federation

Krasnoyarsk Regional Center for Prevention and Control of AIDS and Infectious Diseases

🇷🇺

Moscow, Russian Federation

Stavropol State Medical University of Ministry of Healthcare

🇷🇺

Moscow, Russian Federation

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