Cure My Disease

Don't miss your cure!

 Log in / Sign up

Texting for health: could a simple WhatsApp nudge boost HIV protection?

NCT ID NCT07772791

Prevention Sponsor: Oswaldo Cruz Foundation 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 19, 2026 · Last updated Aug 20, 2026 · Updated 1 time

Summary

This study is testing whether weekly WhatsApp messages can help sexual and gender minorities in Brazil stay on track with HIV prevention (PrEP) and treatment (ART). Participants will be randomly assigned to receive either the messages or no messages for six months. The study will track adherence through online questionnaires over a year to see if the digital reminders make a difference.

What this could mean

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

Active substance
Weekly WhatsApp adherence messages
What this could lead to
If effective, this low-cost digital tool could be scaled up to support HIV prevention and treatment adherence in other regions and populations.
What could go wrong
The trial relies on self-reported adherence, which may not reflect actual behavior. The intervention is brief (6 months) and may not have lasting effects.

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 3,000 people

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

Started

May 2026

Expected to finish

Dec 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

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: male sex assigned at birth and identifying as a man, travesti, transgender person, or non-binary person; age ≥18 years; residing in Brazil; access to the internet; and self-reporting sex with a man in the past 12 months. Exclusion Criteria: incorrectly answering the attention-check questions; and incomplete responses, defined as not reaching the end of the screening questionnaire

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for HIV infections are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

HIV infectious disease

As listed by the trial registrant

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

HIV infections

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

  • Instituto Nacional de Infectologia Evandro Chagas

    RECRUITING

    Rio de Janeiro, Rio de Janeiro, 21040-360, Brazil

More trials for these conditions

Other studies related to the condition(s) this trial covers.