Den här översättningen är inte klar ännu. Den här sidan är just nu på engelska.

Gå till den engelska sidan

Blood vessel test may predict heart attack risk

NCT ID NCT00868855

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 looked at whether measuring a natural clot-busting substance (t-PA) released from heart arteries could predict future heart attacks or death in people with mild to moderate coronary artery disease. Researchers gave a small dose of bradykinin into the heart artery during a routine catheterization and measured t-PA levels. The study was small (16 participants) and terminated early, so results are limited.

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

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

16 people

The number who actually took part.

Start date

Dec 2003

Finished

Dec 2010

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

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: 1. Age \>18 year old male and female patients 2. All patients are referred for elective cardiac catheterization based on clinical indication 3. Cath shows mild or moderate (\<70% stenosis) CAD that does not require mechanical intervention Exclusion Criteria: 1. Severe stenosis requires intervention. 2. Significant left main coronary artery disease (\>40%). 3. Acute MI or acute coronary syndrome with enzyme elevation or ischemic EKG changes 4. Patients with severe left ventricular dysfunction (EF\<35%) 5. Prior history of myocardial infarction 6. History of stroke within 3 months. 7. Recent history of thrombolytic 8. History of coronary intervention within previous 6 months. 9. Patients with history of coronary spasm 10. Patients with congestive heart failure (class III and IV).

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Coronary artery disease are added.

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • Vanderbilt University Medical Center

    Nashville, Tennessee, 37232, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.