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New heart scan method could spot hidden blockages

NCT ID NCT01719016

Diagnosis Sponsor: University of Cincinnati Source: ClinicalTrials.gov ↗

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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 04, 2026 · Updated 1 time

Summary

This study looks at two new methods to tell apart blockages in large versus tiny heart arteries. About 68 adults with known or suspected coronary artery disease will get a PET scan and a heart catheterization. Researchers will compare the new measurements with standard tests to see if they improve diagnosis.

What this could mean

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

Active substance
Cardiac PET scan and coronary catheterization with adenosine and lexiscan
What this could lead to
If successful, this could lead to more accurate diagnosis of heart artery blockages, helping doctors choose better treatments.
What could go wrong
This is a small, early-stage study focused on measurement accuracy, not a treatment. The new parameters may not prove useful in practice.

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

68 people

The number who actually took part.

Start date

Aug 2010

Expected to finish

Jul 2027

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 with chest pain and suspected ischemia that needs to be assessed by a stress test

Ages

18 to 100 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: * 18 years of age or above * Patients referred to a stress test by a Cardiologist * Acute Chest pain, as per patient input. * Risk Assessment with prior test results and/or previous history of known chronic stable CAD. * Borderline or discordant stress testing where obstructive CAD remains a concern. * New or worsening symptoms- Abnormal coronary angiography or abnormal prior stress imaging study. * Coronary stenosis or anatomic abnormality of uncertain significance. * In absence of reliable diagnostic information from another imaging modality. Exclusion Criteria: * Left ventricular ejection fraction less the 25% determined by gated SPECT imaging * Non-dialysis dependent chronic kidney disease with baseline serum creatinine greater than 2.5 gm/dL. * History of type II heparin-induced thrombocytopenia. * Significant co-morbid condition that is medically unstable and would make coronary angiography prohibitive or contraindicated. * Pregnant women. * Incapacitated for Consent

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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

Contacts and locations

Locations

  • Cincinnati Veteran Affairs Medical Center

    Cincinnati, Ohio, 45220, United States

More trials for these conditions

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