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HIV patients pause meds in closely watched study

NCT ID NCT04359186

Knowledge-focused Sponsor: University of California, San Francisco Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study pauses HIV medication in 40 volunteers to closely monitor how the virus and body interact during the earliest stages of rebound. Participants stop their antiretroviral therapy and undergo frequent testing, resuming treatment within three weeks. The goal is to learn more about HIV persistence, not to test a new treatment.

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 could reveal how HIV rebounds after stopping medication, guiding future strategies for long-term remission.
What could go wrong
This is a small, early-stage observational study with no direct treatment benefit. Participants may experience virus rebound or side effects from stopping therapy.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 40 people

The number the study aims to enrol. It can still change while the study runs.

Started

Oct 2020

Expected to finish

Jun 2028

An estimate. End dates often move.

Lead sponsor

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.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Willing and able to provide written informed consent * Age \>= 18 * Documented HIV infection * Antiretroviral therapy for at least 12 months * Screening plasma HIV RNA levels below level of detection (\< 40-75 copies/mL), and all available determinations in past 12 months also below level of detection (blips allowed) * Screening CD4+ T-cell count \>350 cells/uL * If of childbearing potential, willing to use two methods of contraception * Willing to receive counseling regarding HIV transmission risk mitigation Exclusion Criteria: * Pregnant or plans to become pregnant during the course of the study * Active hepatitis B, defined as (1) positive sAg or (2) positive cAb with negative sAb and positive HBV DNA * Active hepatitis C, defined as positive Hep C Ab with positive HCV RNA * Use of a non-nucleoside reverse transcriptase inhibitor and unable to switch regimen * Significant cardiovascular or cerebrovascular disease * Recent or prior (within past 5 years) malignancy * Severe kidney disease (CrCl \< 50 mL/min via Cockroft-Gault method) * Severe hepatic impairment (Child-Pugh Class C) or unstable liver disease * Concurrent treatment with immunomodulatory drugs * Unable or unwilling to use barrier protection or pre-exposure prophylaxis (PrEP) to prevent HIV transmission with sexual partners not known to be HIV-infected

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Conditions

The condition(s) this trial relates to.

AIDS HIV infectious disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

HIV/AIDS

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • University of California San Francisco

    RECRUITING

    San Francisco, California, 94110, United States

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