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Can a heart registry unlock the secrets of broken heart syndrome?

NCT ID NCT03910569

Knowledge-focused Sponsor: Cedars-Sinai Medical Center 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 19, 2026 · Last updated Aug 20, 2026 · Updated 1 time

Summary

This study is building a large registry of people diagnosed with Takotsubo cardiomyopathy, a temporary heart condition often triggered by stress. Researchers will collect medical history, health updates, and blood samples to identify different types of the condition, improve diagnosis, and better predict who might experience it again. The goal is to lay the groundwork for more targeted treatments in the future.

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 improve how Takotsubo cardiomyopathy is diagnosed, help predict who might have a recurrence, and point toward targeted treatments.
What could go wrong
As an observational registry, it cannot prove cause and effect. Findings may be limited by the accuracy of medical records and the diversity of 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 1,000 people

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

Started

Jan 2019

Expected to finish

Feb 2029

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

The registry will be open to all subjects who have experienced a diagnosed Takotsubo syndrome episode or have been informed by their treating physicians that they have the syndrome.

Ages

18 years and older

Sex

Anyone

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: * Have received a diagnosis of Takotsubo from their physician and consent to enroll * Submit full medical records needed for Takotsubo adjudication Exclusion Criteria: * Younger than 18 years * Unable to provide informed consent * Unable to provide the necessary documentation needed for screening purposes

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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 cardiomyopathy

How to take part

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

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

    1 site. The list below names each one and where it is.

  3. 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 ↗

  4. 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

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • Cedars Sinai Medical Center

    RECRUITING

    Los Angeles, California, 90005, United States

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