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 type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 777 (estimated) |
| Sponsor | SEARCH Research Foundation Academic / other |
| Locations | 1 site (Bangkok, Bangkok) |
| Status | Recruiting |
| Started | April 2009 |
| Main results expected | July 2033 |
| Study ends | July 2033 |
| Registry record updated | April 27, 2026 |
| Trial ID | NCT00796146 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
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Institute of HIV Research and Innovation (IHRI)
Bangkok, Bangkok, Thailand Recruiting
Study contacts
- Study coordinator: Nittaya Phanuphak, MD, PhD
- Email: Nittaya.p@ihri.org
- Phone: 6621605371
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Combining immune-enhancing antibodies and vaccines to control HIV after early infection
This test will see if giving long-acting HIV antibodies together with therapeutic vaccines helps people who began ART during acute HIV infection control viral levels after a planned treatment interruption.
-
Cohort study on acute HIV infection and treatment outcomes
This study is testing how starting HIV treatment right after diagnosis affects the chances of long-term remission in patients and what factors might help achieve that.
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Combination broadly neutralizing HIV antibodies given with ART during acute infection to try to induce remission
This trial will try giving two HIV-specific broadly neutralizing antibodies along with starting ART to ART-naïve adults with acute HIV infection to see if it delays viral rebound and reduces the viral reservoir.
-
Comparing standard and intensive HIV treatment for early infection
This study is testing whether a standard HIV treatment or a stronger version works better for people who have just been diagnosed with HIV.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.