Effectiveness of Hepatitis A Virus Vaccination Among Homosexual Males at Risk for Hepatitis A Infection

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
National Taiwan University Hospital
ClinicalTrials.gov Identifier:
NCT01102296
First received: January 8, 2010
Last updated: December 25, 2012
Last verified: December 2012
  Purpose

Male homosexuals are at risk for hepatitis A virus (HAV) infection, and HAV vaccination has been recommended to prevent HAV infection in male homosexuals. HIV infection may impair serological responses to HAV vaccination in HIV-infected patients. The investigators hypothesize that 3 doses of HAV vaccine will improve serological responses to HAV vaccine in HIV-infected patients.


Condition Intervention
Hepatitis
Biological: Hepatitis A vaccine

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention
Official Title: Division of Infectious Diseases, Department of Internal Medicine, National Taiwan University Hospital

Resource links provided by NLM:


Further study details as provided by National Taiwan University Hospital:

Primary Outcome Measures:
  • the proportion of vaccinees who achieve anti-HAV antibody concentrations of 20 mIU/ml or greater at week 48 of vaccination [ Time Frame: 48 weeks ] [ Designated as safety issue: Yes ]

Secondary Outcome Measures:
  • the concentrations of anti-HAV antibody at week 48 of vaccination [ Time Frame: 48 weeks ] [ Designated as safety issue: Yes ]

Enrollment: 582
Study Start Date: June 2009
Study Completion Date: April 2012
Primary Completion Date: March 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: male homosexuals
HIV-uninfected male homosexuals will be provided 2 doses of HAV vaccine, which will be administered at baseline and 6th month of follow-up.
Biological: Hepatitis A vaccine
2 or 3 doses of hepatitis A vaccine to HIV-infected male homosexuals and 2 doses of hepatitis A vaccine to HIV-uninfected male homosexuals.
Other Names:
  • HAVRIX (1440 ELISA unit)per dose.
  • MSM
Active Comparator: HIV-infected male homosexuals, group1
HIV-infected male homosexuals will be provided 3 doses of HAV vaccine, which will be administered at baseline, 1st, and 6th month of follow-up.
Biological: Hepatitis A vaccine
2 or 3 doses of hepatitis A vaccine to HIV-infected male homosexuals and 2 doses of hepatitis A vaccine to HIV-uninfected male homosexuals.
Other Names:
  • HAVRIX (1440 ELISA unit)per dose.
  • MSM
Active Comparator: HIV-infected male homosexuals, group 2
HIV-infected male homosexuals will be provided 2 doses of hepatitis A vaccine, which will be administered at baseline and 6th month of follow-up.
Biological: Hepatitis A vaccine
2 or 3 doses of hepatitis A vaccine to HIV-infected male homosexuals and 2 doses of hepatitis A vaccine to HIV-uninfected male homosexuals.
Other Names:
  • HAVRIX (1440 ELISA unit)per dose.
  • MSM

Detailed Description:

In this study, we aim to compare the serological responses to HAV vaccination between HIV-infected patients who receive 2 doses or 3 doses of HAV vaccine and HIV-uninfected persons who receive 2 doses of HAV vaccine. Persons who identify themselves as male homosexuals aged younger than 40 years and are seronegative for hepatitis A virus will be enrolled. HAV vaccination will be provided free-of-charge. HIV-uninfected persons will receive 2 doses of HAV vaccine that will be administered at baseline and 6 months after the first dose, while HIV-infected patients will be given 2 doses or 3 doses of HAV vaccine; for those who choose to receive 3 doses, a second dose will be given 1 month after the first dose. A longitudinal follow-up of serological responses will be conducted to assess the effectiveness of HAV vaccination; HAV IgG will be determined at 6 months after the first dose of HAV vaccination(before the administration of the second dose), 12 months and 18 months after the first dose of HAV vaccination .

  Eligibility

Ages Eligible for Study:   18 Years to 40 Years
Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Age between 18~40-years-old
  • Homosexuals

Exclusion Criteria:

  • Presence of symptoms or signs suggestive of active infection
  • Allergy to vaccination
  • Failure to provide written informed consent
  • Use of immunosuppressive or immunomodulating agents or chemotherapy
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01102296

Locations
Taiwan
National Taiwan University Hospital
Taipei, Taiwan
Sponsors and Collaborators
National Taiwan University Hospital
Investigators
Principal Investigator: Chien-Ching Hung, MD Division of Infectious Disease, Department of Internal Medicine, National Taiwan University Hopsital
  More Information

No publications provided

Responsible Party: National Taiwan University Hospital
ClinicalTrials.gov Identifier: NCT01102296     History of Changes
Other Study ID Numbers: 200903063M
Study First Received: January 8, 2010
Last Updated: December 25, 2012
Health Authority: Taiwan: Department of Health

Keywords provided by National Taiwan University Hospital:
hepatitis A vaccine
male homosexual
HIV infection
male homosexuals who are seronegative for hepatitis A virus

Additional relevant MeSH terms:
Hepatitis
Hepatitis A
Liver Diseases
Digestive System Diseases
Hepatitis, Viral, Human
Virus Diseases
Enterovirus Infections
Picornaviridae Infections
RNA Virus Infections

ClinicalTrials.gov processed this record on April 15, 2014