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Coronary DiseaseCT-MPACTNCT00541203

Cardiac Computed Tomography In the Management of Patients With indeterminAte or inConclusive Stress Tests

An observational study of Coronary Disease, run by Corewell Health East at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Coronary CT angiography (CCTA) offers great promise as a risk stratification tool in patients with suspected CAD. It has been demonstrated in a multitude of accuracy studies to have a negative predictive value averaging over 95%. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Coronary Disease
How many people
45 participants
Where
1 siteUnited States
Study dates
Oct 2007to Jun 2011
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Volunteers over 18 years of age; both genders; referred from participating cardiologist's offices

Who may be able to join

  • Chest pain or other symptoms suggestive of coronary artery disease.
  • Pharmacologic/exercise stress test with SPECT within the past 3 months.
  • "Discordant" clinical and stress results as outlined above.
  • Scheduled to undergo cardiac catheterization.
  • Able to provide informed consent.
  • Age equal to or greater than 18 years.

Who cannot join

  • Presence of pre-existing CAD (prior myocardial infarction, prior angiographic evidence of significant coronary artery disease, prior coronary bypass surgery) or cardiomyopathy (ejection fraction < 45%)
  • History of hypertension with severe left ventricular hypertrophy, history of cor pulmonale.
  • Renal insufficiency (creatinine ≥1.6) or renal failure requiring dialysis.
  • Inability or refusal to provide informed consent.
  • Psychological unsuitability or extreme claustrophobia.
  • Pregnancy or unknown pregnancy status.
Show all 10Show fewer
  • Age less than 18 years.
  • Patients with known allergy to iodinated contrast, unable to tolerate pre-medication.
  • Inability to tolerate beta-blockers, including those with COPD or asthma requiring maintenance inhaled bronchodilators or steroids, complete heart block, second-degree atrioventricular block.
  • Computed tomography imaging, or contrast administration, within the past 48 hours.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • William Beaumont Hospital

    Royal Oak, Michigan, 48073

Other trials in United States

About this study

Coronary CT angiography (CCTA) offers great promise as a risk stratification tool in patients with suspected CAD. It has been demonstrated in a multitude of accuracy studies to have a negative predictive value averaging over 95%. This leads to the hypothesis that a negative CCTA may preclude the need for invasive testing. The purpose of this randomized controlled study is to prospectively evaluate the role of CCTA on the management of patients with inconclusive or indeterminate stress test results.CCTA is able to provide not only information on presence and extent of coronary artery calcification, but detailed coronary anatomy as well.

SPECIFIC AIM # 1: To evaluate the diagnostic and prognostic performance of CCTA in patients with equivocal / intermediate stress test results as compared to conventional invasive coronary angiography.

SPECIFIC AIM # 2: To evaluate the utility of CCTA in prediction of major adverse cardiac events (MACE) compared to invasive coronary angiography at 30 days, 1 year, 3 years and 5 years.

Read the detailed description

Outpatients scheduled to undergo cardiac catheterization and coronary angiography for the specific indication of inconclusive or indeterminate stress tests will be considered for this study. Patients will be initially screened by their cardiologist for the presence of inclusion/exclusion criteria, as well as pre-test and post-test likelihood of CAD.16, 17 All patients must have undergone a stress (exercise or pharmacologic) test within the past 3 months.

After consent, patients will be randomized 1:1 to undergo CCTA or cardiac catheterization. The decision whether or not to proceed with subsequent invasive cardiac catheterization (CCTA arm) or revascularization (catheterization arm) will be made by the patient's primary and interventional cardiologists respectively.

Inclusion:

  1. Chest pain or other symptoms suggestive of coronary artery disease.
  2. Pharmacologic/exercise stress test with SPECT (nuclear myocardial-heart perfusion imaging) within the past 3 months.
  3. "Discordant or conflicting findings" clinical and stress results as outlined above.
  4. Scheduled to undergo cardiac catheterization.
  5. Able to provide informed consent.
  6. Age equal to or greater than 18 years.

Exclusion:

  1. Presence of pre-existing heart disease (prior heart attack, prior angiographic evidence of significant heart disease, prior heart surgery) or cardiomyopathy (ejection fraction less than or equal to 45%)
  2. History of high blood pressure with severe left ventricular hypertrophy (thicken heart muscle), history of cor pulmonale (right heart chamber failure due to elevated blood pressures in the arteries delivering blood to the lungs).
  3. Kidney insufficiency (creatinine greater than or equal to 1.6) or kidney failure requiring dialysis.
  4. Inability or refusal to provide informed consent.
  5. Psychological unsuitability or extreme claustrophobia (fear of closed in spaces).
  6. Pregnancy or unknown pregnancy status.
  7. Age less than 18 years.
  8. Patients with known allergy to iodinated contrast, unable to tolerate pre-medication.
  9. Inability to tolerate beta-blockers (medication to slow the heart rate), including those with COPD or asthma requiring maintenance inhaled bronchodilators or steroids, complete heart block, second-degree atrioventricular block.
  10. Computed tomography imaging, or contrast administration, within the past 48 hours.
Keywords
tomography, coronary artery disease, Stress Test, Coronary Angiography
Medical subject headings
Coronary Disease, Coronary Artery Disease

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Oct 2007 (estimated)
  2. Study startOct 2007
  3. Primary completionJun 2011
  4. Study completionJun 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
45 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00541203
Sponsor's protocol ID
2007-120
Acronym
CT-MPACT
Status last verified
Mar 2012
First submitted
9 Oct 2007
Last updated
21 Mar 2012
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

An observational study of Coronary Disease, run by Corewell Health East at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 21 Mar 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Mar 2012; AzTrials last refreshed its copy on 7 Nov 2026.

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