A Phase 1b Study Assessing GS-7340 in Treatment-Naive Adults With Chronic Hepatitis B

NCT ID: NCT01671787

Last Updated: 2018-10-23

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

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

51 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-03-31

Study Completion Date

2013-04-30

Brief Summary

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This is an open-label study evaluating multiple doses of GS-7340 versus Tenofovir disoproxil fumarate (TDF).

Detailed Description

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This is a randomized, open-label, active-controlled study whose primary objective is to evaluate the safety and efficacy of several doses of GS-7340. This study will evaluate the safety, viral kinetics, and antiviral activity of 4 different doses of GS-7340 over 28 days of therapy. In addition, the study will evaluate the antiviral activity of an optimal dose of GS-7340 versus 300mg Tenofovir disoproxil fumarate (TDF) over 28 days of therapy.

Conditions

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Chronic Hepatitis B

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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GS-7340 8mg

After Screening procedures, eligible subjects will be randomized 1:1:1:1:1 to receive either open-label GS-7340 8, 25, 40, or 120 mg (3 x 40 mg), or open-label TDF 300 mg for 28 days.

Group Type EXPERIMENTAL

GS-7340

Intervention Type DRUG

Subjects are randomized to receive one of four different doses of GS-7340 over 28 days of therapy.

GS-7340 25mg

After Screening procedures, eligible subjects will be randomized 1:1:1:1:1 to receive either open-label GS-7340 8, 25, 40, or 120 mg (3 x 40 mg), or open-label TDF 300 mg for 28 days.

Group Type EXPERIMENTAL

GS-7340

Intervention Type DRUG

Subjects are randomized to receive one of four different doses of GS-7340 over 28 days of therapy.

GS-7340 40mg

After Screening procedures, eligible subjects will be randomized 1:1:1:1:1 to receive either open-label GS-7340 8, 25, 40, or 120 mg (3 x 40 mg), or open-label TDF 300 mg for 28 days.

Group Type EXPERIMENTAL

GS-7340

Intervention Type DRUG

Subjects are randomized to receive one of four different doses of GS-7340 over 28 days of therapy.

GS-7340 120mg

After Screening procedures, eligible subjects will be randomized 1:1:1:1:1 to receive either open-label GS-7340 8, 25, 40, or 120 mg (3 x 40 mg), or open-label TDF 300 mg for 28 days.

Group Type EXPERIMENTAL

GS-7340

Intervention Type DRUG

Subjects are randomized to receive one of four different doses of GS-7340 over 28 days of therapy.

Tenofovir disoproxil fumarate 300mg

After Screening procedures, eligible subjects will be randomized 1:1:1:1:1 to receive either open-label GS-7340 8, 25, 40, or 120 mg (3 x 40 mg), or open-label TDF 300 mg for 28 days.

Group Type EXPERIMENTAL

Tenofovir disoproxil fumarate

Intervention Type DRUG

Subjects will receive 300mg of Tenofovir disoproxil fumarate (TDF) over 28 days of therapy

Interventions

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GS-7340

Subjects are randomized to receive one of four different doses of GS-7340 over 28 days of therapy.

Intervention Type DRUG

Tenofovir disoproxil fumarate

Subjects will receive 300mg of Tenofovir disoproxil fumarate (TDF) over 28 days of therapy

Intervention Type DRUG

Other Intervention Names

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Viread

Eligibility Criteria

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Inclusion Criteria

* Must be between 18 and 65 years of age
* Must have Screening plasma HBV DNA ≥ 2x10\^3 IU/mL
* Must have chronic HBV infection for at least 6 months
* Must have estimated creatinine clearance (CLCr) ≥ 70 mL/min
* Not pregnant or nursing
* Women must be of non-childbearing potential OR of childbearing potential with confirmed negative pregnancy tests
* Consistent and correct use of recommended methods of birth control for men and women

Exclusion Criteria

* Pregnant or lactating subjects
* Receipt of anti-HBV nucleoside/nucleotide therapy. Subjects who have failed prior Interferon treatment, greater than 6 months prior to screening, are permitted to participate in the study screening
* Known co-infection with HIV, hepatitis C virus (HCV) or hepatitis D virus (HDV)
* Presence of autoimmune disorders
* History of liver disease other than Hepatitis B
* History of Gilbert's Disease
* Any sign of decompensated liver disease
* Known or suspected cirrhosis
* Evidence of hepatocellular carcinoma
* Presence or history of cardiovascular disease, cardiomyopathy, and/or cardiac conduction abnormalities
* Electrolyte abnormalities
* History of treatment that permanently alters the gastric condition
* Alcohol or substance abuse
* History of bleeding diathesis
* Significant bone disease
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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John Flaherty, MD

Role: STUDY_DIRECTOR

Gilead Sciences

Locations

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Research and Education Inc.

San Diego, California, United States

Site Status

University of Maryland Institute of Human Virology

Baltimore, Maryland, United States

Site Status

Henry Ford Health System

Detroit, Michigan, United States

Site Status

Baylor College of Medicine - St. Luke's Episcopal Hospital

Houston, Texas, United States

Site Status

Monash Medical Centre

Melborne, Victoria, Australia

Site Status

Alfred Hospital

Melbourne, Victoria, Australia

Site Status

Austin Health

Melbourne, Victoria, Australia

Site Status

Linear Clinical Research Ltd

Nedlands, Western Australia, Australia

Site Status

Downtown Infectious Diseases Clinic (University of British Columbia)

Vancouver, British Columbia, Canada

Site Status

The Ottawa Hospital, General Campus

Ottawa, Ontario, Canada

Site Status

Toronto General Hospital

Toronto, Ontario, Canada

Site Status

Algorithme Pharma

Montreal, Quebec, Canada

Site Status

Pro-recherche

Saint Romuald, Quebec, Canada

Site Status

Auckland Clinical Studies

Auckland, , New Zealand

Site Status

University Hospitals Birmingham NHS Foundation Trust

Birmingham, , United Kingdom

Site Status

Grahame Hayton Unit

London, , United Kingdom

Site Status

University College London Hospital

London, , United Kingdom

Site Status

Institute of Liver Studies, King's College Hospital

London, , United Kingdom

Site Status

Nottingham University Hospitals NHS Trust - Queens Medical Centre

Nottingham, , United Kingdom

Site Status

Countries

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United States Australia Canada New Zealand United Kingdom

Other Identifiers

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GS-US-320-0101

Identifier Type: -

Identifier Source: org_study_id

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