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Cohort Study of HIV-1 Incidence Among Clients of the Thai Red Cross AIDS Research Center, Bangkok, Thailand

This study has been completed.
Information provided by (Responsible Party):
Assoc.Prof.Jintanat Ananworanich, M.D., South East Asia Research Collaboration with Hawaii Identifier:
First received: July 7, 2008
Last updated: May 27, 2015
Last verified: May 2015

The purpose of this study is to assess populations in Thailand at high risk for HIV-1 infection for potential efficacy trials of candidate HIV vaccines to include:

  1. assess incidence of HIV-1 and volunteer retention
  2. describe early viral load and CD4 counts
  3. assess participant willingness to participate in HIV vaccine efficacy trials and other HIV prevention trials
  4. describe volunteer risk behavior

HIV Infections

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective

Resource links provided by NLM:

Further study details as provided by South East Asia Research Collaboration with Hawaii:

Primary Outcome Measures:
  • number of HIV-1 infections per 100 person-years [ Time Frame: 5 years ]
  • Lost to follow-up on an annual basis (10% or better) [ Time Frame: 5 years ]
  • Post-infection viral load and CD4 count [ Time Frame: 5 years ]
  • Willingness to participate in HIV vaccine and prevention trials [ Time Frame: 5 years ]
  • Risk behavior by questionnaire [ Time Frame: 5 years ]

Secondary Outcome Measures:
  • HIV-1 prevalence [ Time Frame: 5 years ]
  • HIV-1 genotype distribution [ Time Frame: 5 years ]

Biospecimen Retention:   Samples Without DNA
Plasma, CD4, HIV-RNA

Enrollment: 992
Study Start Date: July 2008
Study Completion Date: June 2010
Primary Completion Date: December 2009 (Final data collection date for primary outcome measure)
Detailed Description:
Prospective cohort study of HIV-negative participants who will receive voluntary counseling and testing (VCT) for HIV-antibody in conjunction with questionnaires on risk behavior, willingness to participate in HIV vaccine trials and other HIV prevention trials at 4 month intervals for a period of 1 year. This study will follow 1000 HIV-negative volunteers with an expected minimum of 15-20 incident HIV-infections based on a minimum incidence rate of 1.5/100 person-years. Weighted incidence estimates will be calculated with exact 95% confidence intervals.

Ages Eligible for Study:   18 Years to 50 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Population in Thailand who are seeking HIV counseling and testing at TRCARC

Inclusion Criteria:

  • Man or woman aged 18-50 years
  • Willing to provide location or contact information and allow contact
  • Thai citizenship as identified by Thai National Identification card
  • Ability and willingness to provide consent
  • Availability for follow-up for the planned study duration

Exclusion Criteria:

  • Persons who have a history of a medical or psychiatric disorder, that in the judgment of the investigator(s), would interfere with or serve as a contraindication to adherence to the study protocol or ability to give informed consent
  • Persons who are known to be HIV-positive
  Contacts and Locations
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Please refer to this study by its identifier: NCT00713531

The Thai Red Cross AIDS Research Centre
Bangkok, Thailand, 10330
Sponsors and Collaborators
South East Asia Research Collaboration with Hawaii
Principal Investigator: Nittay - Phanuphak, MD. The Thai Red Cross AIDS Research Centre, Bangkok, Thailand
  More Information

Responsible Party: Assoc.Prof.Jintanat Ananworanich, M.D., Jintanat Ananworanich, South East Asia Research Collaboration with Hawaii Identifier: NCT00713531     History of Changes
Other Study ID Numbers: SEARCH 008/RV233
Study First Received: July 7, 2008
Last Updated: May 27, 2015

Keywords provided by South East Asia Research Collaboration with Hawaii:
male and female clients
ages 18-50 years
seeking HIV counseling
testing at TRCARC

Additional relevant MeSH terms:
HIV Infections
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases processed this record on May 25, 2017