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Can online therapy calm heart attack survivors' fears?

NCT ID NCT06298864

Symptom relief Sponsor: Karolinska Institutet 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study tests whether an online cognitive behavioral therapy (CBT) program can reduce heart-related anxiety in people who have had a heart attack or unstable angina. 176 participants will be randomly assigned to either the CBT program or a digital lifestyle advice group. The goal is to see if CBT helps people feel less afraid of heart symptoms, improves quality of life, and encourages more physical activity.

What this could mean

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

Active substance
online cognitive behavioral therapy (CBT)
What this could lead to
If it works, this could offer a practical, home-based way to reduce fear and avoidance after a heart attack, helping people feel better and be more active.
What could go wrong
This is a relatively small, early-stage trial testing a behavioral intervention, so results may not apply to everyone. The effect may be modest, and participants must be able to read Swedish.

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 176 people

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

Started

Mar 2024

Expected to finish

Oct 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: * ACS ≥ 6 months before assessment (type 1 MI STEMI/NSTEMI or unstable angina \[UA\]) * Age 18 and older * Clinically significant cardiac anxiety that leads to distress and/or interferes with daily life (Cardiac Anxiety Questionnaire; CAQ: ≥18 * Able to read and write in Swedish Exclusion Criteria: * Heart failure New York heart Association class IV or ejection fraction ≤ 30% * Significant valvular disease * Planned coronary artery bypass surgery or percutaneous interventions * Any medical restriction to physical exercise * Severe medical illness or an acute health threatening disease (e.g., cancer) * Grade 3 hypertension (i.e., blood pressure ≥ 180 systolic and/or 110 diastolic) * Severe mental illness requiring urgent psychiatric hospitalization or intervention, or risk of suicide * Alcohol or substance use disorder that would impede ability to complete study protocol * Ongoing psychological treatment

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Conditions

The condition(s) this trial relates to.

acute coronary syndrome

As listed by the trial registrant

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

Acute coronary syndrome Online CBT targeting cardiac anxiety

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

  • Karolinska University Hospital

    RECRUITING

    Stockholm, 11635, Sweden

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