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500 heart patients join global study to unravel 'Broken Heart' syndrome

NCT ID NCT04361994

Knowledge-focused Sponsor: Prof. Dr. med. Ingo Eitel 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

The GEIST registry is an international study collecting information from 500 people with Takotsubo syndrome, also known as 'broken heart syndrome.' Researchers are gathering data on symptoms, test results, treatments, and outcomes to better understand this temporary heart condition. The goal is to learn what leads to complications and how patients fare in the short and long term.

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 registry could reveal patterns that help doctors predict complications and improve care for people with Takotsubo syndrome.
What could go wrong
This is an observational study, not a treatment trial. It collects existing data and will not directly test any new therapy or provide immediate benefits to participants.

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 500 people

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

Started

Apr 2015

Expected to finish

Dec 2035

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

Diagnosed according to the current diagnostic recommendations at the time of clinical presentation

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: * Patients with Takotsubo syndrome Exclusion Criteria: * Non

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Conditions

The condition(s) this trial relates to.

Tako-tsubo cardiomyopathy

As listed by the trial registrant

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

Takotsubo syndrome

How to take part

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

  1. The places running it

    2 sites in 2 countries. 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 Foggia

    RECRUITING

    Foggia, Italy

  • Universität zu Lübeck

    RECRUITING

    Lübeck, Schleswig-Holstein, 23538, Germany

More trials for these conditions

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