Efficacy and Safety Study of GS-9450 Treatment for 6 Months in Patients With Chronic Hepatitis C Virus Infection

NCT ID: NCT00874796

Last Updated: 2014-02-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

307 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-05-31

Study Completion Date

2010-07-31

Brief Summary

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This is a Phase 2b, randomized, double-blind, parallel-group, placebo-controlled, multicenter study investigating the safety, tolerability and efficacy of two oral doses of GS-9450 in adults with chronic Hepatitis C Virus (HCV). Approximately 240 subjects 18-65 years of age who meet study entry criteria will be randomized (in other words, selected at random, like flipping a coin) to one of three treatment groups (80 subjects per treatment group) as follows:GS-9450 10 mg once daily,GS-9450 40 mg once daily, or matching placebo once daily.

Following randomization, subjects will return within seven business days for a Baseline (Day 1) visit, at which time study medication will be dispensed and subjects will enter a 26 week treatment phase. During the treatment phase, subjects will receive study drug once daily for 24 weeks and then taper off of study drug over the following 2 weeks by receiving study drug once every other day for one week and then every 3 days for one week. Following completion of the treatment phase, subjects will enter a 4-week off-treatment follow-up phase.

Detailed Description

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Conditions

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HCV Infection

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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GS-9450 10 mg/day

GS-9450 taken as one 10 mg capsule by mouth once daily

Group Type EXPERIMENTAL

GS-9450

Intervention Type DRUG

Taken as one capsule by mouth once daily

GS-9450 40 mg/day

GS-9450 taken as one 40 mg capsule by mouth once daily

Group Type EXPERIMENTAL

GS-9450

Intervention Type DRUG

Taken as one capsule by mouth once daily

Placebo

Placebo taken as one placebo capsule by mouth once daily

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Taken as one placebo capsule (matching in appearance to GS-9450 capsules) by mouth once daily

Interventions

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GS-9450

Taken as one capsule by mouth once daily

Intervention Type DRUG

Placebo

Taken as one placebo capsule (matching in appearance to GS-9450 capsules) by mouth once daily

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Adult subjects, ages 18-65
* Chronic HCV infection, defined as having documented HCV infection (antibody or RNA positivity) at least 6 months prior to Baseline (Day 1) with HCV viremia at screening
* Screening Knodell necroinflammatory score \>= 3 based on liver biopsy evaluation (as determined by local pathologist) conducted anytime during the 45-day screening period
* ALT \> the upper limit of the normal range (ULN) but \< 10 X ULN at the screening visit
* Previously failed pegylated interferon-based HCV therapy in combination with ribavirin therapy, or is unable to tolerate or has contraindications to receiving interferon or ribavirin therapy
* BMI between 19 and 36 kg/m2 (inclusive)
* Creatinine clearance \>= 70 mL/min
* absolute neutrophil count \>= 1000/mm3
* Hemoglobin \> 10 g/dL
* Have no clinical or laboratory evidence of hepatic decompensation

Exclusion Criteria

* Decompensated liver disease
* Child-Pugh grade B or C cirrhosis
* Evidence of hepatocellular carcinoma
* Positive urine drug screen for cocaine or amphetamines
* Infection with HCV genotype 3
* Co-infection with hepatitis B virus or human immunodeficiency virus
* Pancreatitis
* Recent significant infection or symptoms of infection
* Autoimmune disorders
* Any history of seizure
* Is a public transportation operator (pilot of airplane or ship; air traffic controller; bus, train or subway driver) or operates heavy construction machinery
* Transplantation
* History of malignancy
* Current excessive alcohol ingestion, averaging \> 3 drinks/day for females and \> 4 drinks/day for males
* History of or current binge drinking
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Gilead Sciences

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Ken Hirsch, MD

Role: STUDY_DIRECTOR

Gilead Sciences

Locations

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Phoenix, Arizona, United States

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Tucson, Arizona, United States

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Anaheim, California, United States

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Beverly Hills, California, United States

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Cypress, California, United States

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La Jolla, California, United States

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Mission Hills, California, United States

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Palm Springs, California, United States

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Pasadena, California, United States

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San Clemente, California, United States

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San Diego, California, United States

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Washington D.C., District of Columbia, United States

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Hialeah, Florida, United States

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Miami, Florida, United States

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North Miami Beach, Florida, United States

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Orlando, Florida, United States

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Sarasota, Florida, United States

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Tampa, Florida, United States

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Decatur, Georgia, United States

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Chicago, Illinois, United States

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Indianapolis, Indiana, United States

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Louisville, Kentucky, United States

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Baton Rouge, Louisiana, United States

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New Orleans, Louisiana, United States

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Annapolis, Maryland, United States

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Baltimore, Maryland, United States

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Boston, Massachusetts, United States

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Novi, Michigan, United States

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Saint Louis, Michigan, United States

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Plymouth, Minnesota, United States

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Omaha, Nebraska, United States

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Las Vegas, Nevada, United States

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Hillsborough, New Jersey, United States

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Morristown, New Jersey, United States

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Santa Fe, New Mexico, United States

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Johnson City, New York, United States

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New York, New York, United States

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Plainview, New York, United States

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Cincinnati, Ohio, United States

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Cleveland, Ohio, United States

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Philadelphia, Pennsylvania, United States

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Providence, Rhode Island, United States

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Chattanooga, Tennessee, United States

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Germantown, Tennessee, United States

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Dallas, Texas, United States

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San Antonio, Texas, United States

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Fairfax, Virginia, United States

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Falls Church, Virginia, United States

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Norfolk, Virginia, United States

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Seattle, Washington, United States

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Madison, Wisconsin, United States

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Vancouver, British Columbia, Canada

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Winnipeg, Manitoba, Canada

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London, Ontario, Canada

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Berlin, , Germany

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Bonn, , Germany

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Cologne, , Germany

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Essen, , Germany

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Frankfurt am Main, , Germany

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Hamburg, , Germany

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Hanover, , Germany

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Mainz, , Germany

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Bialystok, , Poland

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Bydgoszcz, , Poland

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Chorzów, , Poland

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Kielce, , Poland

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Wroclaw, , Poland

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San Juan, , Puerto Rico

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Santurce, , Puerto Rico

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Brighton, , United Kingdom

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London, , United Kingdom

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Nottingham, , United Kingdom

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Sheffield, , United Kingdom

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Countries

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United States Canada Germany Poland Puerto Rico United Kingdom

Other Identifiers

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GS-US-227-0106

Identifier Type: -

Identifier Source: org_study_id

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