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1,125 heart patients join study to unlock secrets of ablation success

NCT ID NCT05504356

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study follows 1,125 adults with atrial fibrillation who have had or will have a catheter ablation procedure. Over one year, participants use a smartphone app to report symptoms, lifestyle habits, and quality of life, and provide ECG readings. The goal is to identify factors that predict whether the ablation works and to track complications, helping doctors personalize care.

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 help doctors predict which patients benefit most from ablation and how lifestyle changes improve outcomes.
What could go wrong
This is an observational study, not testing a new treatment. It relies on patient-reported data, which may be less reliable than clinical measurements.

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

About 1,125 people

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

Started

Apr 2022

Expected to finish

Jul 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.

Who is studied

Subjects with a diagnosis of AF (i.e. new onset AF, paroxysmal AF, persistent AF, Permanent AF), who have recently or will imminently be undergoing AF ablation. Subjects will be at least 18 years of age or older, and be English-speakers, as well as adhere to the inclusion criteria pertaining to access to the Eureka mobile app (owning a smartphone device and cell phone number, email address)

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: * Adults age 18 and older * Must have a smartphone device (iOS and/or Android) and cell phone number to participate on the mobile app, and will be willing to download the Eureka Research Platform mobile application * Must have email address to participate on the web portal (accessible on any web-connected device) * Undergone a catheter ablation procedure for atrial fibrillation in the week prior to recruitment, or have an ablation planned for within a week from recruitment Exclusion Criteria: * Unable to consent for themselves * Unable to read, speak, comprehend English

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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

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, 94143, United States

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