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Cardiovascular DiseasesNCT00006526

Coronary Calcification Progression Study

An observational study of Cardiovascular Diseases and Coronary Disease, run by National Heart, Lung, and Blood Institute (NHLBI).

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

To investigate use of Fast Gated Helical Computed Tomography (FGHCT) measures of coronary artery calcium (CAC), FGHCT-CAC, for discrimination of coronary artery disease (CAD) and to quantify progression of coronary artery calcium over time. Read more about this study

Who is it for?
Ages Up to 100 years
How many people
Not given
Where
No sites listed yet
Study dates
Jul 1999to May 2003
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 Up to 100 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

No eligibility criteria

About this study

To investigate use of Fast Gated Helical Computed Tomography (FGHCT) measures of coronary artery calcium (CAC), FGHCT-CAC, for discrimination of coronary artery disease (CAD) and to quantify progression of coronary artery calcium over time.

Read the detailed description

BACKGROUND:

While advances have been made in control of some coronary heart disease (CHD) risk factors, especially smoking and high dietary fat intake, much of the decline in age-adjusted CHD mortality rates has been due to medical treatment and procedural interventions for overt CHD as well as hypertension and hypercholesterolemia. In this context, the availability of an inexpensive, sensitive and specific method for noninvasive detection of both early coronary atherosclerosis and asymptomatic but advanced CHD could allow beneficial treatments to be targeted at many high-risk individuals. The study was designed to determine whether fast-gated helical computed tomography (FGHCT), a more advanced and readily-available variant of a technique (EBCT) that has not achieved its full promise, could play such a role.

DESIGN NARRATIVE:

Dr. Crouse and his colleagues augmented ongoing case-control studies, HL35333, "Carotid Atherosclerosis Progression Study" and HL59503, "Vascular Disease, Structure and Function". HL35333 comprises 280 symptomatic individuals > 45 years equally divided between men and women, half with and half without angiographically defined coronary artery disease evaluated for risk factors and extracranial carotid intimal-medial thickness (ECIMT, with B-mode ultrasound) at baseline and yearly for three years. The grant has quantified the associations of coronary artery disease and coronary artery disease risk factors for ECIMT and its progression. HL59503 quantifies flow-mediated brachial artery reactivity (FM-BAR) in this cohort. Literature review suggests that while ECIMT predicts coronary artery disease status in clinical samples it does less well in asymptomatic samples; longitudinal data (CLAS study) suggest that progression of ECIMT best predicted incident coronary artery disease, and Electron Beam Computed Tomography (EBCT) quantification of Coronary Artery Calcium (CAC) likely has even greater discriminatory power for coronary artery disease than ECIMT. However, EBCT has limited accessibility.

The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.

Medical subject headings
Cardiovascular Diseases, Coronary Disease, Heart Diseases

Timeline

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

  1. First posted28 Nov 2000 (estimated)
  2. Study startJul 1999
  3. Study completionMay 2003

Resources

More details

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

Study design
Study type
Observational
IDs, dates and publications
ClinicalTrials.gov ID
NCT00006526
Sponsor's protocol ID
951
Other IDs
R01HL063264
Status last verified
Aug 2004
First submitted
28 Nov 2000
Last updated
16 Mar 2016
Results posted
No

Questions about this trial

What is this clinical trial studying?

An observational study of Cardiovascular Diseases and Coronary Disease, run by National Heart, Lung, and Blood Institute (NHLBI).

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

Who may be eligible to take part?

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 16 Mar 2016. Status can change between updates, so confirm with the study contact before making plans.

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 16 Mar 2016.

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Coronary Calcification Progression Study (NCT00006526) | AzTrials