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Scientists study leftover heart tissue to unlock secrets of heart cell maturity

NCT ID NCT00243776

Knowledge-focused Sponsor: Emory University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study uses small pieces of heart tissue removed during necessary surgery in children with congenital heart disease. Researchers want to understand how calcium controls heart cell contraction and how infant heart cells differ from adult ones. They also aim to improve lab-grown heart cells by making them more like real adult heart cells. The study does not test any treatment but may help future research.

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 research could improve lab-grown heart cells for studying heart disease and testing new treatments.
What could go wrong
This is a basic science study using leftover tissue from surgery, not a treatment trial. Findings may not directly lead to new therapies.

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 600 people

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

Start date

Apr 2005

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.

Who is studied

Children undergoing surgery for repair of congenital heart disease

Ages

Up to 20 years

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: * Patients undergoing cardiopulmonary bypass surgery * Patients undergoing surgery for repair of congenital heart disease such as ventricular septal defect or defective mitral or aortic valves. Exclusion Criteria: * Prior cardiac surgery * History of atrial fibrillation or other atrial arrhythmias prior to operation * History of heart failure

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Conditions

The condition(s) this trial relates to.

congenital heart disease tetralogy of fallot ventricular septal defect

As listed by the trial registrant

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

Congenital heart disease Tetralogy of fallot

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

  • Emory University School of Medicine

    RECRUITING

    Atlanta, Georgia, 30322, United States

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