- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02600117
Use of TDF in Patients With Inactive Chronic Hepatitis B Infection
The Use of Tenofovir Disoproxil Fumarate (TDF) in the Management of Patients With Inactive Chronic Hepatitis B (CHB) Infection
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Hepatitis B virus (HBV) infection is a major worldwide health problem. The course of the majority of patients with inactive chronic hepatitis B is usually benign; therefore, the current treatment guidelines recommend not treating these patients. However, recent evidence suggests that the prognosis of these inactive carrier is not exactly benign. For instance, patients may develop liver cancer despite their inactive carrier state. Also, approximately 20-30% of patients with inactive chronic hepatitis B may undergo spontaneous reactivation of hepatitis over time. Multiple episodes of reactivation or sustained reactivation can cause progressive liver damage and even liver decompensation. However, until there are data to support that treatment with oral antivirals can alter the outcome of these patients, they will remain untreated. Potent oral antivirals have been shown to suppress HBV DNA and normalize liver enzymes in patients with active chronic hepatitis B infection. With continued long-term treatment, some of these patients have gone on to clear hepatitis B surface antigen and develop hepatitis B surface antibody. Therefore, it is possible that the same oral antivirals can have the same effect in patients with inactive chronic hepatitis B, but in a shorter duration of treatment. This study will explore the possible use of tenofovir disoproxil fumarate in controlling HBV DNA and promoting hepatitis B surface antigen seroconversion in patients with inactive chronic hepatitis B.
After completion of all initial investigations, patients will be started on TDF 300mg daily. Patients will be reviewed at 6 monthly intervals as per standard of care. At each clinic visit, patients will have blood tests including complete blood count, renal function, electrolytes, liver enzyme and liver function tests, as well as HBV serology including quantitative HBsAg and HBV DNA. Patients will also receive an abdominal ultrasound, fibroscan and fibrotest on an annual basis. Treatment will be stopped when sAg+ve seroconverts to sAb+ve or at the end of 3 years whichever comes earlier.
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Locations
-
-
Ontario
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Toronto, Ontario, Canada, M5G 2C4
- University Health Network - Toronto General Hospital
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- All patients with inactive chronic hepatitis B, defined as someone who has HBV DNA ≤ log4, eAg-ve, eAb+, HBsAg+ve and normal ALT persistently for >6 months
Exclusion Criteria:
- Patients older than 75 years of age
- Presence of hepatoma at entry
- Presence of decompensated cirrhosis defined by a history of variceal bleed, ascites, or hepatic encephalopathy
- Presence of abnormal renal function defined as serum creatinine of>110µmol/L
- co-infection with HIV
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: Tenofovir disoproxil fumarate
300 mg, orally, once a day for 3 years or when sAg+ve seroconverts to sAb+ve whichever comes earlier
|
300 mg, oral, once a day
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Seroconversion from hepatitis B surface antigen positive to hepatitis B surface antibody positive
Time Frame: Three years
|
Positive hepatitis B surface antibody result will indicate recovery from chronic hepatitis B virus infection.
|
Three years
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Florence Wong, MD, University Health Network -Toronto General Hospital
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Digestive System Diseases
- RNA Virus Infections
- Virus Diseases
- Infections
- Blood-Borne Infections
- Communicable Diseases
- Liver Diseases
- Hepatitis, Viral, Human
- Hepadnaviridae Infections
- DNA Virus Infections
- Enterovirus Infections
- Picornaviridae Infections
- Hepatitis, Chronic
- Hepatitis B
- Hepatitis
- Hepatitis A
- Hepatitis B, Chronic
- Molecular Mechanisms of Pharmacological Action
- Anti-Infective Agents
- Antiviral Agents
- Reverse Transcriptase Inhibitors
- Nucleic Acid Synthesis Inhibitors
- Enzyme Inhibitors
- Anti-HIV Agents
- Anti-Retroviral Agents
- Tenofovir
Other Study ID Numbers
- 15-8950
- IN-CA-174-1708 (Other Identifier: Gilead Sciences, Inc.)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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