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Sleepless after a heart attack? study investigates hidden risks

NCT ID NCT07416617

Knowledge-focused Sponsor: Samsung Medical Center 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study uses a large Korean health database to see if developing insomnia after a heart attack (treated with stents or bypass surgery) is linked to worse long-term outcomes like death, another heart attack, or stroke. Researchers will compare patients who take insomnia medication with those who do not. The goal is to understand whether insomnia itself is a risk factor that needs attention.

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 study could show that treating insomnia after a heart attack improves long-term survival and reduces the risk of further heart problems.
What could go wrong
This is an observational study using a database, not a controlled trial. It can show links but cannot prove cause and effect. Results may not apply to all patients.

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 235,342 people

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

Expected to start

Feb 2026

An estimate. Start dates often move.

Expected to finish

Jun 2026

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

dults aged ≥18 years who were hospitalized between January 1, 2009, and December 31, 2023, with a primary diagnosis of AMI, defined using ICD-10 codes I21-I23 along with procedure codes for revascularization (either PCI or CABG), were included (N = 318,356). Among the participants, we excluded patients with mental disorder prior to incident MI (N =79,133), and patients who die at the diagnosis of AMI (N = 3,881).

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: * Diagnosis of acute myocardial infarction * Undergoing percutaneous coronary intervention or coronary artery bypass surgery Exclusion Criteria: * Pre-existing phychiatric disorders

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Conditions

The condition(s) this trial relates to.

acute myocardial infarction insomnia

As listed by the trial registrant

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

Acute myocardial infarction Insomina

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

  • Samsung Medical Center

    Seoul, 06351, South Korea

More trials for these conditions

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