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HBV-specific T-cell Immunity in Individuals With HIV/HBV Co-infection

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ClinicalTrials.gov Identifier: NCT00476723
Recruitment Status : Completed
First Posted : May 22, 2007
Last Update Posted : June 7, 2010
Sponsor:
Collaborators:
Kirby Institute
Ministry of Health, Thailand
Information provided by:
The HIV Netherlands Australia Thailand Research Collaboration

Study Description
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Brief Summary:
The trial will randomise HIV/HBV co-infected individuals to different HBV-active antiretroviral therapy treatment regimens.

Condition or disease
HIV Hepatitis-B

Detailed Description:

Longitudinal study of circulating and intra-hepatic HBV-specific T-cell immunity in the setting of a randomised, controlled, international, multi-centre outpatient trial. The trial will randomise HIV/HBV co-infected individuals to different HBV-active antiretroviral therapy treatment regimens.

Study population: Patients with HIV/HBV co-infection who are naive to HIV/HBV therapy, have detectable HBV viremia and are willing to start antiretroviral therapy.


Study Design
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Study Type : Observational
Actual Enrollment : 36 participants
Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Generation of HBV-specific T-cell Immunity in Individuals With HIV/HBV Co-infection Receiving HBV-active Antiretroviral Therapy
Study Start Date : April 2005
Actual Primary Completion Date : December 2007
Actual Study Completion Date : December 2007

Resource links provided by the National Library of Medicine

MedlinePlus related topics: HIV/AIDS Hepatitis

Groups and Cohorts
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Group/Cohort
1
HIV/Hepatitis coinfected patients who use at least one hepatitis activity drug or medications


Outcome Measures
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Primary Outcome Measures :
  1. To characterize circulating and intra-hepatic anti-HBV T-cell responses longitudinally in HIV-1/HBV co-infected individuals, following effective anti-HBV therapy [ Time Frame: 48 weeks ]

Secondary Outcome Measures :
  1. To identify novel CD4 and CD8 T cell HBV epitopes associated with HBV clearance. [ Time Frame: 48 weeks ]
  2. To identify emergence of cytotoxic T lymphocyte (CTL) "escape" mutants following anti-HBV therapy [ Time Frame: 48 weeks ]
  3. To determine the effect of HIV-1 co-infection and anti-HBV T-cell responses on clearance of free virions and HBV reservoirs using viral dynamic parameters and direct quantification of HBV hepatic reservoirs [ Time Frame: 48 weeks ]

Biospecimen Retention:   Samples With DNA
PBMC

Eligibility Criteria
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Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
HIV/Hepatitis B coinfected patients using at least one hepatitis active medications in HAART regimen
Criteria

Inclusion Criteria:

  • HIV positive
  • hepatitis-B co-infected
  • HBV/HIV therapy naive
  • >18 years of age

Exclusion Criteria:

Unable to sign consent form.

Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00476723


Locations
Thailand
HIV-NAT
Bangkok, Thailand
Sponsors and Collaborators
The HIV Netherlands Australia Thailand Research Collaboration
Kirby Institute
Ministry of Health, Thailand
Investigators
Principal Investigator: Kiat Ruxrungtham, MD, MSc HIV-NAT, The Thai Red Cross AIDS Research Centre
More Information
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Additional Information:
The HIV Netherlands Australia Thailand Research Collaboration (HIV-NAT)  This link exits the ClinicalTrials.gov site

Responsible Party: Prof. Kiat Ruxrungtham, HIV-NAT
ClinicalTrials.gov Identifier: NCT00476723     History of Changes
Other Study ID Numbers: HIV-NAT 032
First Posted: May 22, 2007    Key Record Dates
Last Update Posted: June 7, 2010
Last Verified: June 2010

Keywords provided by The HIV Netherlands Australia Thailand Research Collaboration:
HIV infection
Hepatitis coinfection

Additional relevant MeSH terms:
Infection
Hepatitis
Hepatitis B
Coinfection
Liver Diseases
Digestive System Diseases
 Hepadnaviridae Infections
DNA Virus Infections
Virus Diseases
Hepatitis, Viral, Human
Parasitic Diseases