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

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00713531

Enrollment

992

Registered

2008-07-11

Start date

2008-07-31

Completion date

2010-06-30

Last updated

2015-05-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV Infections

Keywords

HIV-negative, male and female clients, ages 18-50 years, seeking HIV counseling, testing at TRCARC

Brief summary

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

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.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 50 Years

Healthy volunteers

Yes

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

Design outcomes

Primary

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

Secondary

Measure	Time frame
HIV-1 genotype distribution	5 years
HIV-1 prevalence	5 years

Countries

Thailand

Outcome results