Worldwide HIV watch: 2,500 volunteers join Long-Term infection study
NCT ID NCT05147519
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This observational study will follow 2,500 people aged 14–55 who are at risk for HIV across multiple countries. Researchers will track how many new HIV and other sexually transmitted infections occur over time. The goal is to gather data that could help design future studies aimed at HIV remission and prevention.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this study could help researchers better understand HIV transmission patterns and identify candidates for future remission trials.
- What could go wrong
- This is an observational study, not a treatment trial, so it won't directly benefit participants. Results depend on accurate follow-up and may not apply to all populations.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 2,500 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2021
- Expected to finish
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Jun 2032
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
The enrolled study population in step 1 will consist of up to 3000 men and women between 14 and 55 years of age who are vulnerable to HIV and other sexually transmitted infections. The incidence of HIV will be evaluated across all study sites as a primary objective; the incidence of STIs and retention in the cohort will be evaluated as key secondary objectives. During the accrual period, additional volunteers may be screened to replace participants lost to follow-up or withdrawn from the study, but no additional participants will be screened once the accrual period has expired.
- Ages
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14 to 55 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Step 1 Inclusion Criteria: Female or male aged 14-55 years; Documented negative HIV test according to site-specific HIV testing procedures at entry/screening; Able and willing to provide informed consent; Willing to provide biometric identification; Available for follow-up for the planned study duration; Understands English or the local language as approved by the IRB, including people who are illiterate; Willing to provide contact information for themselves and one personal contact who would know their whereabouts during the study period; Willing to provide information regarding HIV risk behaviors and to undergo testing for HIV and other STIs; Considered to be vulnerable to HIV and other STIs based on any one or more of the following test results and/or self-reported behaviors: 1. Documented history of newly diagnosed syphilis, gonorrhea, chlamydia, Mycoplasma genitalium, herpes simplex virus, or acute hepatitis C virus infection in the 24 weeks prior to screening 2. Self-reported vaginal, oral, or anal intercourse in exchange for money as a regular source of income in the 24 weeks prior to screening 3. Self-reported condomless vaginal or anal intercourse with at least three different partners living with HIV or of unknown status in the 24 weeks prior to screening 4. Self- reported injection drug use (IDU) in the 24 weeks prior to screening 5. Self-reported insertive or receptive anal intercourse with one or more different male or transgender partners in the 24 weeks prior to screening Step 1 Exclusion Criteria: Any significant condition (medical, psychologic/psychiatric or social) that, in the judgment of the study investigator, might interfere with the conduct of the study; Active drug or alcohol use or dependence that, in the judgement of the study investigator, would interfere with adherence to study requirements; Current or past participation in a preventive or therapeutic HIV vaccine study, unless known placebo recipient; Positive β-HCG (human chorionic gonadotropin) pregnancy test (urine or serum) at screening for people of child-bearing potential and people who are amenorrheic for less than 12 consecutive months. Step 2 Inclusion Criteria: New diagnosis of HIV in the last 90 days during Step 1 as determined by site-specific HIV testing procedures; Able and willing to continue follow-up for the planned study duration Step 2 Exclusion Criteria: Any significant condition (medical, psychologic/psychiatric or social) that, in the judgment of the study investigator, might interfere with the conduct of the study; Active drug or alcohol use or dependence that, in the opinion of the investigator, would interfere with adherence to study requirements
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites in 2 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Clinical Research Centre, Walter Reed Army Institute of Research -Africa/Nigeria (WRAIR-A/Nigeria)
RECRUITINGAbuja, Nigeria
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Institute of Clinical Epidemiology, National Institutes of Health, University of the Philippines Manila
RECRUITINGManila, Philippines
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Kenya Medical Research Institute/ USAMRD-A/Kenya (Kericho)
COMPLETEDKericho, Kericho County, Kenya
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Makerere University Walter Reed Program
COMPLETEDMakerere, Kampala, P.O. Box 16524,, Uganda
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