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Kidney patients may not need long blood thinners after stents

NCT ID NCT04708587

Disease control Sponsor: Yonsei 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares taking two blood thinners (aspirin plus clopidogrel or prasugrel) for less than 3 months versus at least 6 months after a heart stent procedure in people with advanced chronic kidney disease. Researchers want to see if a shorter course reduces bleeding without increasing heart attacks or strokes. About 900 adults with severe kidney disease are being enrolled.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
aspirin plus clopidogrel or prasugrel
What this could lead to
If it works, this could show that a shorter course of dual antiplatelet therapy is safer and just as effective for people with advanced kidney disease after stenting.
What could go wrong
This is a mid-sized trial, not a large Phase 3 study, so results may not apply to all patients. There is always a risk of bleeding or clotting events regardless of duration.

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 900 people

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

Started

Mar 2021

Expected to finish

Mar 2028

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 to 84 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: 1. Over 19 years old 2. Chronic Renal Failure Stage IIIb, IV, V (CKD-EPI eGFR \<45 / \<30 / \<15 or dialysis) 3. Patients treated with a new generation drug eluting stent. 4. Patients who signed consent form Exclusion Criteria: 1. Over 85 years old 2. Patients with high risk of bleeding 1) History of hemorrhagic stroke 2) Stroke, dementia or central nervous system damage within 1 year 3) Head trauma or brain surgery within 6 months 4) Tumor in the skull 5) If aortic dissection is suspected 6) Internal bleeding within 6 weeks 7) In case of active bleeding or bleeding disorder 8) In case of major surgery, trauma or bleeding within 3 weeks 3. Patients who need oral anticoagulant 4. Pregnant women or women of childbearing age 5. Life expectancy is less than 1 year 6. Patients with a history of intracranial bleeding 7. Moderate to severe hepatic impairment (Child-Pugh class B or C)

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Conditions

The condition(s) this trial relates to.

chronic kidney disease chronic renal failure syndrome

As listed by the trial registrant

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

Chronic kidney diseases

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

  • Division of Cardiology, Yonsei Cardiovascular Hospital, Yonsei University College of Medicine

    RECRUITING

    Seoul, South Korea

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