Trial Review

Please note the ANZCTR will be unattended from Friday 20 December 2024 for the holidays. The Registry will re-open on Tuesday 7 January 2025. Submissions and updates will not be processed during that time.

Registering a new trial?

To achieve prospective registration, we recommend submitting your trial for registration at the same time as ethics submission.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT01356160




Registration number
NCT01356160
Ethics application status
Date submitted
2/05/2011
Date registered
19/05/2011
Date last updated
3/02/2014

Titles & IDs
Public title
GS-5885 Alone or in Combination With GS-9451 With Peginterferon Alfa 2a and Ribavirin in Treatment Chronic Genotype 1 Hepatitis C Virus
Scientific title
A Phase 2b, Randomized, Double-Blind, Placebo-Controlled Trial Evaluating Response Guided Therapy With GS-5885 Alone or in Combination With GS-9451 With Peginterferon Alfa 2a and Ribavirin in Treatment Naïve Subjects With Chronic Genotype 1 Hepatitis C Virus Infection
Secondary ID [1] 0 0
GS-US-256-0148
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Hepatitis C, Chronic 0 0
Condition category
Condition code
Infection 0 0 0 0
Other infectious diseases
Oral and Gastrointestinal 0 0 0 0
Other diseases of the mouth, teeth, oesophagus, digestive system including liver and colon

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - GS-5885
Treatment: Drugs - GS-9451
Treatment: Other - peginterferon alfa-2a
Treatment: Drugs - ribavirin tablet
Treatment: Drugs - GS-9451 Placebo

Active comparator: Arm 1 - RGT with GS-5885 30 mg QD + GS-9451 200 mg QD + PEG/RBV

Placebo comparator: Arm 2 - RGT with GS-5885 30 mg QD + GS-9451 placebo QD + PEG/RBV


Treatment: Drugs: GS-5885
tablet, 30 mg QD

Treatment: Drugs: GS-9451
tablet, 200 mg QD

Treatment: Other: peginterferon alfa-2a
(solution for injection) 180 µg/week

Treatment: Drugs: ribavirin tablet
ribavirin tablet (weight based: 1000 mg/day \<75 kg; 1200 mg/day = 75 kg) divided twice daily (BID)

Treatment: Drugs: GS-9451 Placebo
Placebo to match GS-9451 QD
Intervention code [1] 0 0
Treatment: Drugs
Intervention code [2] 0 0
Treatment: Other
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
To evaluate the antiviral efficacy of response guided therapy.
Timepoint [1] 0 0
Through 24 weeks post-treatment
Secondary outcome [1] 0 0
To evaluate the safety and tolerability of each regimen.
Timepoint [1] 0 0
Through 24 weeks post-treatment
Secondary outcome [2] 0 0
To characterize viral dynamics of GS-5885 and GS-9451 when administered with PEG and RBV.
Timepoint [2] 0 0
Through Day 10 on study
Secondary outcome [3] 0 0
To characterize the viral resistance to GS-5885 and GS-9451 when administered in combination with PEG and RBV.
Timepoint [3] 0 0
12 or 24 weeks
Secondary outcome [4] 0 0
To characterize steady state pharmacokinetics of GS-5885 and GS-9451 when administered with PEG and RBV.
Timepoint [4] 0 0
Through 48 weeks of treatment

Eligibility
Key inclusion criteria
* Males and females 18-70 years of age
* Chronic HCV infection
* Subjects must have liver biopsy results (= 2 years prior to Screening) indicating the absence of cirrhosis.
* Monoinfection with HCV genotype 1
* HCV RNA > 10^4 IU/mL at Screening
* HCV treatment naïve
* Candidate for PEG/RBV therapy
* Body mass index (BMI) 18-36 kg/m2, inclusive
* Agree to use two forms of highly effective contraception methods for the duration of the study and for 7 months after the last dose of study medication. Females of childbearing potential must have negative pregnancy test at Screening and Baseline.
Minimum age
18 Years
Maximum age
70 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
* Pregnant female or male with pregnant female partner
* Exceed defined thresholds for leukopenia, neutropenia, anemia, thrombocytopenia, thyroid stimulating hormone (TSH)
* Diagnosis of autoimmune disease, decompensated liver disease, poorly controlled diabetes mellitus, significant psychiatric illness, severe chronic obstructive pulmonary disease (COPD), HIV, hepatitis B virus (HBV), hepatocellular carcinoma or other malignancy (with exception of certain resolved skin cancers), hemoglobinopathy, retinal disease, or are immunosuppressed.
* Subjects with current use of amphetamines, cocaine, opiates (e.g., morphine, heroin), or ongoing alcohol abuse are excluded. Patients on stable methadone or buprenorphine maintenance treatment for at least 6 months prior to Screening may be included into the study.

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s


The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 2
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
1/07/2011
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
1/06/2013
Sample size
Target
Accrual to date
Final
351
Recruitment in Australia
Recruitment state(s)
QLD
Recruitment hospital [1] 0 0
- Herston
Recruitment postcode(s) [1] 0 0
4029 - Herston
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Arizona
Country [2] 0 0
United States of America
State/province [2] 0 0
California
Country [3] 0 0
United States of America
State/province [3] 0 0
Colorado
Country [4] 0 0
United States of America
State/province [4] 0 0
Florida
Country [5] 0 0
United States of America
State/province [5] 0 0
Maryland
Country [6] 0 0
United States of America
State/province [6] 0 0
Massachusetts
Country [7] 0 0
United States of America
State/province [7] 0 0
Missouri
Country [8] 0 0
United States of America
State/province [8] 0 0
New York
Country [9] 0 0
United States of America
State/province [9] 0 0
North Carolina
Country [10] 0 0
United States of America
State/province [10] 0 0
Ohio
Country [11] 0 0
United States of America
State/province [11] 0 0
Tennessee
Country [12] 0 0
United States of America
State/province [12] 0 0
Texas
Country [13] 0 0
United States of America
State/province [13] 0 0
Virginia
Country [14] 0 0
Puerto Rico
State/province [14] 0 0
San Juan

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
Gilead Sciences
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Bittoo Kanwar, MD
Address 0 0
Gilead Sciences
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

No information has been provided regarding IPD availability


What supporting documents are/will be available?

No Supporting Document Provided



Results publications and other study-related documents

No documents have been uploaded by study researchers.

Results not provided in https://clinicaltrials.gov/study/NCT01356160