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20,000 heart patients enrolled in major artery study

NCT ID NCT01366404

Knowledge-focused Sponsor: Seung-Jung Park 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study follows about 20,000 people with coronary artery disease who had a special test called FFR to guide their artery-opening procedure. Researchers want to see how these patients' heart health changes over 2 years. The goal is to better understand the long-term results of this treatment approach.

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 20,000 people

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

Started

Jun 2011

Expected to finish

Apr 2037

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

Patients who had FFR measurement

Ages

35 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: * Age 35 years and older * FFR measurement on one and more coronary artery stenosis * Willing and able to provide informed, written consent Exclusion Criteria: * Stenosis with TIMI\<3 flow * Graft vessel * Ejection fraction \< 30% * Angiographic evidence of extreme tortuosity or calcified coronary vessels * Suspected coronary spasm even after sufficient nitrate injected * Life expectancy \<2 year * Planned cardiac surgery or planned major non cardiac surgery * Woman who are breastfeeding, pregnant or planning to become pregnant during the course of the study Imaging study specific exclusion criteria * visually-estimated angiographic reference segment diameter of \<2.75mm or \>4.0mm * Inappropriate for IVUS/VH/OCT procedures : inability for imaging wire or catheter to pass through the tight stenosis, severe calcification, angulation

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Conditions

The condition(s) this trial relates to.

coronary artery disorder

As listed by the trial registrant

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

Coronary artery disease

How to take part

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

  1. The places running it

    29 sites. 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. 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

  • Asan Medical Center

    RECRUITING

    Seoul, South Korea

  • Chonnam National University Hospital

    RECRUITING

    Gwangju, South Korea

  • Chungbuk National University Hospital

    RECRUITING

    Cheongju-si, South Korea

  • Chungnam National University Hospital

    RECRUITING

    Daejeon, South Korea

  • Daegu Catholic University Center

    RECRUITING

    Daegu, South Korea

  • Dong-A Medical Center

    RECRUITING

    Pusan, South Korea

  • Gangnam Severance Hospital

    RECRUITING

    Seoul, South Korea

  • Gangneung Asan Hospital

    RECRUITING

    Gangneung, South Korea

  • Gangwon National Univ. Hospital

    RECRUITING

    Chuncheon, South Korea

  • Hallym University Kangdong Sacred Heart Hospital

    RECRUITING

    Seoul, South Korea

  • Hallym University Sacred Heart Hospital

    RECRUITING

    Anyang, South Korea

  • Inje University Ilsan Paik Hospital

    RECRUITING

    Ilsan, South Korea

  • Keimyung University Dongsan Medical Center

    RECRUITING

    Daegu, South Korea

  • Korea University Anam Hospital

    RECRUITING

    Seoul, South Korea

  • Korea University Guro Hospital

    RECRUITING

    Seoul, South Korea

  • Kyung-Hee University Hospital at Kangdong

    RECRUITING

    Seoul, South Korea

  • Kyungpook National university hospital

    RECRUITING

    Daegu, South Korea

  • Pusan National University Hospital

    RECRUITING

    Pusan, South Korea

  • Pusan National University Yangsan Hospital

    RECRUITING

    Yangsan, South Korea

  • Seoul National University Boramae Medical Center

    RECRUITING

    Seoul, South Korea

  • Seoul National University Hospital

    RECRUITING

    Seoul, South Korea

  • Seoul university Bundang hospital

    RECRUITING

    Seongnam, South Korea

  • Soon Chun Hyang University Hospital Bucheon

    RECRUITING

    Bucheon-si, South Korea

  • The Catholic University of Korea, Deajeon St.Mary's hospital

    RECRUITING

    Daejeon, South Korea

  • The Catholic University of Korea, Seoul St.Mary's Hospital

    RECRUITING

    Seoul, South Korea

  • The Catholic University of Korea, Yeouido St. Mary's Hospital

    RECRUITING

    Seoul, South Korea

  • Ulsan University Hospital

    RECRUITING

    Ulsan, South Korea

  • Wonju Severance Christian Hospital

    RECRUITING

    Wŏnju, South Korea

  • Yeungnam University Medical Center

    RECRUITING

    Daegu, South Korea

More trials for these conditions

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