Clinical trial NCT01726517: Safety and Efficacy of LDV/SOF Fixed-Dose Combination (FDC) ± Ribavirin in HCV Genotype 1 Subjects
Official title: A Phase 2, Randomized, Open-Label Study of Sofosbuvir/GS-5885 Fixed-Dose Combination ± Ribavirin in Subjects With Chronic Genotype 1 HCV Infection
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: Chronic Hepatitis C Virus
Keywords: HCV genotype 1 (GT-1)
HCV
Sustained Virologic Response
Direct Acting Antiviral
Combination Therapy
GS-7977
GS-5885
Ribavirin
Open Label
Sofosbuvir
Treatment-Naïve
Protease Inhibitors
PI
Lead sponsor: Gilead Sciences
Sponsor class: INDUSTRY
First posted: 2012-11-15
Enrollment: 100
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: This study is to evaluate the safety, tolerability, and antiviral efficacy of ledipasvir/sofosbuvir (LDV/SOF) fixed-dose combination (FDC) with or without ribavirin (RBV), administered for 8 or 12 weeks of treatment in participants with chronic genotype 1 hepatitis C virus (HCV) infection who are treatment-naive, and for 12 weeks in participants who had previously received a regimen containing a protease inhibitor for the treatment of HCV.


Eligibility criteria: Inclusion Criteria:

* Age ≥ 18 years, with chronic genotype 1 HCV infection
* HCV RNA equal to or greater than 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
* Current or prior history of clinical hepatic decompensation
* Hepatocellular carcinoma (HCC) 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

Primary outcomes:
measure: Percentage of Participants With Sustained Virologic Response (SVR) at 12 Weeks After Discontinuation of Therapy (SVR12)
timeFrame: Posttreatment Week 12
measure: Incidence of Adverse Events Leading to Permanent Discontinuation of Study Drug(s)
timeFrame: Baseline to Week 12
Secondary outcomes:
measure: Percentage of Participants With SVR at 2, 4, 8, and 24 Weeks After Discontinuation of Therapy (SVR2, SVR4, SVR8, and SVR24)
timeFrame: Posttreatment Weeks 2, 4, 8, and 24
measure: Percentage of Participants Experiencing Viral Breakthrough or Viral Relapse
timeFrame: Baseline to Posttreatment Week 24
Other outcomes:
Locations:
city: San Antonio
country: United States
state: Texas
Study officials:
affiliation: Gilead Sciences
name: Rob Hyland
role: STUDY_DIRECTOR
References:
citation: Lawitz E, Poordad FF, Pang PS, Hyland RH, Ding X, Mo H, Symonds WT, McHutchison JG, Membreno FE. Sofosbuvir and ledipasvir fixed-dose combination with and without ribavirin in treatment-naive and previously treated patients with genotype 1 hepatitis C virus infection (LONESTAR): an open-label, randomised, phase 2 trial. Lancet. 2014 Feb 8;383(9916):515-23. doi: 10.1016/S0140-6736(13)62121-2. Epub 2013 Nov 5.