Clinical trial Recruiting at 1 site Observational Ages 18 and up

Characterizing acute HIV infection in high-risk individuals

Official title: Establish and Characterize an Acute HIV Infection Cohort in a High Risk Population

Run by SEARCH Research Foundation · NCT00796146 · Data updated 2026-11-12

This study is trying to learn more about people with early HIV infection by looking at their health, behavior, and immune responses to help improve future treatments and vaccines.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment777 (estimated)
SponsorSEARCH Research Foundation
Academic / other
Locations1 site (Bangkok, Bangkok)
StatusRecruiting
StartedApril 2009
Main results expectedJuly 2033
Study endsJuly 2033
Registry record updatedApril 27, 2026
Trial IDNCT00796146 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals over 18 years old with a confirmed acute HIV-1 infection.

Probably not a fit

Patients with a history of medical or psychiatric disorders that could interfere with study adherence or those who are pregnant will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to establish a cohort of individuals with acute HIV infection, focusing on their clinical, immunological, and virological characteristics. It will assess demographics, behavioral risk factors, neurocognitive function, and immune responses, as well as track sexual contacts for voluntary HIV counseling and testing. Participants will undergo regular follow-ups and blood testing to monitor their health and the progression of the infection. The findings will contribute to understanding HIV-1 immunopathogenesis and support future vaccine development.

Why it matters

Potential benefit: If successful, this study could enhance our understanding of acute HIV infection and inform strategies for prevention and treatment.

How similar studies have gone: Other studies focusing on acute HIV infection have shown promise in understanding the disease, but this specific cohort approach is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age \>18 years old
2. Have protocol-defined acute HIV-1 infection (Tested 4th generation HIV EIA negative and NAT positive or tested 4th generation HIV EIA positive, negative by less sensitive EIA and NAT positive)
3. Understand the study and sign informed consent form. Persons who cannot read will have the consent form read to them by a study staff and they can give informed consent by using thumb print.
4. Availability for follow-up for the planned study duration

Exclusion Criteria:

1. Persons who have a history of a medical or psychiatric disorder by investigator's interview and physical examination according to standard practices, 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.
2. Female participants who are pregnant at the time of screening

Where it's running

  • Institute of HIV Research and Innovation (IHRI)
    Bangkok, Bangkok, Thailand
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.