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Could a WhatsApp chatbot improve heart recovery?

NCT ID NCT07237178

Knowledge-focused Sponsor: Ana Rita Londral, PhD 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a WhatsApp-based chatbot can help people recovering from atrial fibrillation ablation. About 76 adults will either use the chatbot to report symptoms and well-being for 3 months or receive standard hospital follow-up. The goal is to see if the chatbot is easy to use and helpful for sharing health updates after the procedure.

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 76 people

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

Expected to start

Dec 2025

An estimate. Start dates often move.

Expected to finish

Dec 2027

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: * age 18 years or older; * documented diagnosis of paroxysmal or persistent AF based on clinical assessment and coded according to the International Classification of Diseases, 11th Revision; * undergone catheter ablation for AF at Hospital de Santa Marta during the study recruitment period; * able to use the PROMBot-FA chatbot independently or with caregiver assistance, defined as Portuguese literacy sufficient to understand instructions and ability to operate a smartphone; * clinically stable at discharge with no acute post-procedural complications precluding participation; and * provision of written informed consent. Exclusion Criteria: * severe cognitive impairment preventing comprehension of study procedures, such as moderate-to-severe dementia or other neurological conditions limiting capacity to consent; * severe uncorrected visual impairment or motor disability preventing smartphone operation even with caregiver support; * explicit refusal to use digital technology or unwillingness to share health data required for the study; * clinical or contextual conditions rendering 3-month follow-up unfeasible, including anticipated relocation outside the hospital catchment area or concurrent participation in another interventional study with overlapping endpoints; or * life expectancy less than 6 months.

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Conditions

The condition(s) this trial relates to.

atrial fibrillation

As listed by the trial registrant

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

Atrial fibrillation (AF) Catheter ablation

How to take part

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

  1. 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 ↗

  2. 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.

More trials for these conditions

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