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App and peer support aim to boost HIV prevention for people leaving jail

NCT ID NCT04036396

Prevention Sponsor: University of California, Los Angeles Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether a mobile app (GeoPassport), financial incentives, and peer mentor support could help men who have sex with men and transgender women leaving jail access HIV prevention services like PrEP and testing. 233 participants were enrolled and followed for 9 months. The goal was to see if this support increased use of healthcare and prevention compared to standard referrals alone.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Mobile Enhanced Prevention Support (MEPS): a GPS-based app, incentives, and peer mentor support
What this could lead to
If effective, this approach could improve access to HIV prevention and healthcare for a high-risk, underserved population leaving jail.
What could go wrong
This is a small, completed study (233 participants) relying on self-reported data, so results may not be generalizable or fully reliable.

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

233 people

The number who actually took part.

Started

Nov 2019

Finished

Mar 2024

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 to 49 years

Sex

Male participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: 1. housed in K6G unit or within 12 months post-release from incarceration 2. ages 18-49 years 3. screens positive for Substance Use Disorder (SUD), or has sought or received SUD treatment at any time starting 12 months before the most recent incarceration until the present day. 4. reports sexual intercourse with a male or a male-to-female transgender woman in the six months prior to jail entry 5. if recruited in jail, is likely to be remain either in custody for at least four more days, but less than three more months based on scheduled court dates, current sentence, treatment plan, etc. 6. has not received an HIV diagnosis (based on self-report) 7. plans to reside in Los Angeles County for the 12 months following enrollment Exclusion Criteria: 1. does not have a smartphone and is not willing to obtain one post-release, 2. is not able to speak and understand English, and 3. does not have sufficient reading skills to operate a mobile app

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Conditions

The condition(s) this trial relates to.

bacterial sexually transmitted disease hepatitis C virus infection sexually transmitted disease substance-related disorder HIV infectious disease prevention target

As listed by the trial registrant

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

Hepatitis C HIV infections Sexually transmitted diseases, bacterial Substance use disorders

Contacts and locations

Locations

  • God's Property

    Los Angeles, California, 90003, United States

  • Los Angeles Center for Alcohol and Drug Abuse

    Santa Fe Springs, California, 90670, United States

  • Los Angeles County Men's Central Jail

    Los Angeles, California, 90012, United States

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