Immunogenicity of Influenza Vaccines in HIV-infected Persons in Thailand

Randomized Controlled Trial to Compare the Immunogenicity of Intramuscular Versus Intradermal Trivalent Inactivated Split Virion Influenza Vaccine in HIV-infected Men Who Have Sex With Men in Bangkok, Thailand

This study will assess the efficacy of a new intradermal formulation of the trivalent inactivated influenza vaccine compared to the standard intramuscular vaccine in HIV-infected men who have sex with men in Bangkok, Thailand. Relative efficacy of the two different formulations of influenza vaccine will be assessed by comparing immunologic responses to vaccine between the two study arms.

Study Overview

Status

Completed

Conditions

Study Type

Interventional

Enrollment (Actual)

415

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Bangkok, Thailand
        • Silom Community Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 60 years (Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Thai men by nationality who have sex with men
  • HIV-infected or HIV-uninfected men
  • At least 18 years of age
  • Willing and able to provide written informed consent
  • Availability and commitment for 12 months of study follow-up (3 study visits)

Exclusion Criteria:

  • Men with severe allergies to chicken eggs (they will specifically be asked about severe egg allergies during the screening visit; appendix C1)
  • Men > 60 years of age
  • Men who have had a severe reaction to influenza vaccine in the past
  • Men with a history of Guillain-Barré Syndrome
  • Men who received influenza vaccine within 12 months prior to enrollment
  • Men who are on steroid therapy or other immunosuppressant medications
  • Men who received any vaccine in the 4 weeks prior to the first study visit or who plan to receive a vaccine (other than influenza vaccine provided through the study protocol) in the 4 weeks following the first study visit
  • Men who received an experimental agent (vaccine, drug, biologic, device, blood product, medication) within 1 month prior to enrollment in this study, or expect to receive an experimental agent during the 12 month study period
  • Men who have any condition, in the opinion of the investigator, that would place them at an unacceptable risk of injury or render them unable to meet requirements of the protocol. (e.g., severe reaction to another vaccine, blood clotting disorder, inflammatory skin condition).
  • Foreign (non-Thai) nationality

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: HIV+, CD4<200, ID vaccine
15ug
Active Comparator: HIV+, CD4<200, IM vaccine
15ug
Active Comparator: HIV+, CD4>=200, ID vaccine
15ug
Active Comparator: HIV+, CD4 >=200, IM vaccine
15ug
Other: HIV-, ID vaccine
15ug
Other: HIV-, IM vaccine
15ug

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Antibody titers
Time Frame: 30 days
Frequency of 4-fold or greater increase in serum hemagglutination inhibition antibody titers against each viral strain in the vaccine
30 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Antibody titers
Time Frame: 6 months
Frequency of 4-fold or greater increase in serum hemagglutination inhibition antibody titers against each viral strain in the vaccine
6 months
Antibody titers
Time Frame: 12 months
Frequency of 4-fold or greater increase in serum hemagglutination inhibition antibody titers against each viral strain in the vaccine
12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Charung Muangchana, MD, Ministry of Health, Thailand
  • Principal Investigator: Prasert Thongcharoen, MD, Influenza Foundation of Thailand

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

November 1, 2011

Primary Completion (Actual)

September 9, 2013

Study Completion (Actual)

October 1, 2015

Study Registration Dates

First Submitted

February 21, 2012

First Submitted That Met QC Criteria

February 24, 2012

First Posted (Estimated)

February 27, 2012

Study Record Updates

Last Update Posted (Actual)

June 5, 2024

Last Update Submitted That Met QC Criteria

June 4, 2024

Last Verified

June 1, 2024

More Information

Terms related to this study

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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