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Evaluation of Subclinical COronary Atherosclerosis for Risk Stratification Using Coronary Computed Tomography (CT) Angiography (ESCORT)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01416532
Recruitment Status : Unknown
Verified July 2011 by Seoul National University Bundang Hospital.
Recruitment status was:  Recruiting
First Posted : August 15, 2011
Last Update Posted : August 18, 2011
Information provided by:
Seoul National University Bundang Hospital

Brief Summary:
To evaluate the prognostic value of coronary CT angiography (CCTA) for risk stratification in asymptomatic adults in comparison with conventional risk stratification (CRS) and coronary artery calcium scoring (CACS).

Condition or disease
Coronary Atherosclerosis

Detailed Description:

The risk stratification of cardiovascular disease (CVD) in asymptomatic individuals represents a major challenge. For this purpose, a lot of risk prediction models that take demographic and clinical characteristics into account have been developed. Although Framingham risk score (FRS) is most widely used among multiplr risk prediction models, it has some limitation for prediction of CVD especially in young adult and women. Recently, coronary artery calcium score (CACS) has known to be powerful screening method for CVD, however, it cannot detect the noncalcified coronary plaques (NCP), so it does not represent the entire spectrum of atherosclerotic plaques and it also cannot evaluate the degree of stenosis. On the contrary, Coronary CT angiography (CCTA)can provide detailed coronary artery anatomy and plaque imaging about the location, burden and characteristics of atherosclerotic plaque per se, which might give additional insight to stratify the risk of future cardiac events and therapy.

In this study, we will evaluate the prevalence and characteristics of subclinical coronary atherosclerosis on CCTA in asymptomatic population. And we will investiage the follow up data for major cardiac adverse event such as cardiac death, nonfatal myocardial infarction, unstable angina and revascularization. Therefore, we will finally evaluate the prognostic value of CCTA for risk stratification in asymptomatic adults in comparsion with conventional risk stratification such as FRS and CACS.

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Study Type : Observational
Estimated Enrollment : 5000 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Prognostic Value of Coronary CT Angiography in Relation to Evaluation of Subclinical Coronary Atherosclerosis for Risk Stratification in Asymptomatic Individuals From ESCORT Study
Study Start Date : January 2006
Actual Primary Completion Date : December 2007
Estimated Study Completion Date : December 2015

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Information from the National Library of Medicine

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Ages Eligible for Study:   20 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Asymptomatic adults without previous coronary artery disease

Inclusion Criteria:

  • asymptomatic subjects
  • adults > 20 years
  • subjects who underwent both calcium score and coronary CT angiography

Exclusion Criteria:

  • typical or atypical chest pain
  • subjects who underwent previous percutaneous coronary intervention
  • serious comorbid conditions(i.e. malignancy)
  • insufficient medical record
  • poor image quality

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01416532

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Korea, Republic of
Seound National University Bundang Hospital Recruiting
Seongnam-si, Gyeonggi-do, Korea, Republic of, 436-707
Contact: Eun Ju Chun, MD, PhD    82-31-787-7618   
Principal Investigator: Eun Ju Chun, MD, PhD         
Sub-Investigator: Sang Il Choi, MD, PhD         
Sponsors and Collaborators
Seoul National University Bundang Hospital
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Study Director: Eun Ju Chun, MD, PhD Seoul National University Bundang Hospital
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Responsible Party: Seoul National University Bundang Hospital Identifier: NCT01416532    
Other Study ID Numbers: B-1107-131-104
First Posted: August 15, 2011    Key Record Dates
Last Update Posted: August 18, 2011
Last Verified: July 2011
Keywords provided by Seoul National University Bundang Hospital:
coronary Atheroslcerosis
Computed Tomography
Additional relevant MeSH terms:
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Coronary Artery Disease
Myocardial Ischemia
Arterial Occlusive Diseases
Vascular Diseases
Cardiovascular Diseases
Coronary Disease
Heart Diseases