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Balloon vs stent: which is better for tricky heart blockages?

NCT ID NCT07019350

Disease control 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 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests whether a drug-coated balloon works as well as a drug-eluting stent for people with complex blockages in heart arteries. About 520 adults with coronary artery disease will be randomly assigned to one of the two treatments. The goal is to see which approach leads to fewer major heart problems like heart attack or death.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 520 people

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

Started

Oct 2025

Expected to finish

Dec 2030

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.

Ages

19 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 * Subject must be at least 19 years of age * Patients with acute or chronic coronary syndrome intended for percutaneous coronary intervention (PCI) * Patients with de novo complex coronary bifurcation with clinically relevant side branch. Definition of complex coronary bifurcation with clinically relevant side branch is true bifurcation lesion (Medina 1,1,1 / 1,0,1 / 0,1,1) with side branch lesion length ≥10mm and should meet at least one of the below criteria. i. Left main bifurcation with side branch stenosis severity ≥70% by visual estimation ii. Non-left main bifurcation with side branch reference vessel diameter ≥2.75mm and stenosis severity ≥90% by visual estimation * Subject who can verbally confirm understandings of risks, benefits and treatment alternatives of receiving invasive approach and he/she or his/her legally authorized representative provides written informed consent prior to any study related procedure. Exclusion Criteria * Hemodynamically unstable condition (SBP \<90 mmHg even after administration of vasopressor, ventricular arrhythmias, or cardiogenic shock) * Known true anaphylaxis to contrast medium (not allergic reaction but anaphylactic shock) * Known significant congenital, severe valvular or cardiomyopathic (hypertrophic or dilated cardiomyopathy, or any other forms) process which could explain cardiac symptoms. * Severe left ventricular systolic dysfunction (ejection fraction \<30%) * Intolerance to aspirin, clopidogrel, ticagrelor, prasugrel, or heparin. * Non-cardiac co-morbid conditions are present with life expectancy \<1 year or that may result in protocol non-compliance (per site investigator's medical judgment) * Unwillingness or inability to comply with the procedures described in this protocol.

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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

    3 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 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

  • Chonnam National University Hospital

    NOT_YET_RECRUITING

    Gwangju, South Korea

  • Chosun University Hospital

    NOT_YET_RECRUITING

    Gwangju, South Korea

  • Samsung Medical Center

    RECRUITING

    Seoul, South Korea

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