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AtherosclerosisNCT00246493

Vascular Aging: The Link That Bridges Age to Atherosclerosis (The VALIDATE Study)

An observational study of Atherosclerosis and Cardiovascular Disease, run by National Institute on Aging (NIA) at 2 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The prevalence, incidence, and severity of atherosclerotic disease all markedly increase with age. Basic experimental and observational data demonstrate that aging magnifies the pathologic and clinical consequences of established risk factors and is the most potent individual risk factor for coronary atherosclerosis… Read more about this study

Who is it for?
Ages 30 years and older
How many people
495 participants
Where
2 sitesUnited States
Study dates
22 Jun 2004to 1 Nov 2017
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 30 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • For all groups:
  • Age 30 years or older
  • Ability and willingness to participate in the protocol and undergo vascular studies and chest MDCT examinations
  • For the second group:
  • 1) Coronary artery calcium score of zero or less than 25th percentile of that expected based on age and gender.
  • For the third group:
Show all 11Show fewer
  • 1) Coronary artery calcium score which is greater than the 50th percentile of that computed based on age and gender, or known coronary disease on the basis of:
  • prior documented myocardial infarction or
  • typical ischemic symptoms and catheterization documented stenosis of greater than or equal to 70% in at least one major coronary artery
  • If male, diagnosis was made under 50 years of age
  • If female, diagnosis was made under 60 years of age.

Who cannot join

  • Atrial fibrillation (due to limitations with gating on MDCT)
  • For the first 2 groups: History of procedures used for treatment of CVD (CABG, angioplasty, pacemaker or defibrillator implantation, any surgery on the heart or the arteries)
  • Active treatment for cancer
  • Serious medical condition which could hinder participation or make it unlikely that they will live for three years (for f/u)
  • Weight>300 lb (maximum weight allowed on CT tables)
  • Inability to provide an informed consent
  • For females, current pregnancy because of the radiation associated with the helical CT and the unknown risks to a fetus. This is only temporary, and women wishing to participate may be enrolled six weeks after delivery.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Johns Hopkins University

    Baltimore, Maryland, 21205

  • National Institute of Aging, Clinical Research Unit

    Baltimore, Maryland, 21224

Other trials in United States

About this study

The prevalence, incidence, and severity of atherosclerotic disease all markedly increase with age. Basic experimental and observational data demonstrate that aging magnifies the pathologic and clinical consequences of established risk factors and is the most potent individual risk factor for coronary atherosclerosis and for adverse outcomes following an ischemic event. These findings suggest that normal aging alters the vascular substrate so as to promote the development and progression of atherosclerosis. The age-associated changes in vascular structure and function include an increase in central vascular stiffness, intimal proliferation, and endothelial dysfunction. The major hypothesis is that the above alterations in vascular substrate (i.e. vascular age) are an important determinant of the age associated increased likelihood for the development and progression of coronary atherosclerotic disease.

This program will non-invasively characterize vascular age and atherosclerotic burden in BLSA participants and individuals with successful aging, i.e. those with no or minimal evidence of coronary atherosclerotic disease, and those with premature, clinically evident coronary artery disease. It will repeat measures of vascular age and atherosclerotic burden three years after the first assessment. By examining the impact of vascular age on the initial extent and the progression of atherosclerotic burden over a two to three-year period, it will test the hypothesis that vascular age is an important determinant of the ageassociated increase in atherosclerotic disease....

Read the detailed description

The prevalence, incidence, and severity of atherosclerotic disease all markedly increase with age. Basic experimental and observational data demonstrate that aging magnifies the pathologic and clinical consequences of established risk factors and is the most potent individual risk factor for coronary atherosclerosis and for adverse outcomes following an ischemic event. These findings suggest that normal aging alters the vascular substrate so as to promote the development and progression of atherosclerosis. The age-associated changes in vascular structure and function include an increase in central vascular stiffness, intimal proliferation, and endothelial dysfunction. The major hypothesis is that the above alterations in vascular substrate (i.e. vascular age) are an important determinant of the age associated increased likelihood for the development and progression of coronary atherosclerotic disease.

This protocol will non-invasively characterize vascular age and atherosclerotic burden in BLSA participants and individuals with successful aging, i.e. those with no or minimal evidence of coronary atherosclerotic disease, and those with premature, clinically evident coronary artery disease. It will repeat measures of vascular age and atherosclerotic burden three years after the first assessment. By examining the impact of vascular age on the initial extent and the progression of atherosclerotic burden over a two to three-year period, it will test the hypothesis that vascular age is an important determinant of the age-associated increase in atherosclerotic disease.

Keywords
Coronary, Endothelial, Vascular, Atherosclerosis, Arterial
Medical subject headings
Atherosclerosis, Cardiovascular Diseases, Vascular Diseases

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Characterize vascular age relat-BLSA

    Measured: Two-three years

Secondary outcomes (1)
  1. Characterize vascular age relat-other

    Measured: Two-three years

Timeline

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

  1. First posted31 Oct 2005 (estimated)
  2. Study start22 Jun 2004
  3. Study completion1 Nov 2017

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
Case-control
Time perspective
Prospective
Enrolment
495 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00246493
Sponsor's protocol ID
999904294
Other IDs
04-AG-N294
Status last verified
1 Nov 2017
First submitted
27 Oct 2005
Last updated
9 Dec 2019
Results posted
No

Publications

  • Lakatta EG. Cardiovascular aging research: the next horizons. J Am Geriatr Soc. 1999 May;47(5):613-25. doi: 10.1111/j.1532-5415.1999.tb02579.x. No abstract available.

    PubMed 10323658
  • Franklin SS, Wong ND, Larson MG, Kannel WB, Levy D. How important is pulse pressure as a predictor of cardiovascular risk? Hypertension. 2002 Feb;39(2):E12-3. No abstract available.

    PubMed 11847204
  • Grundy SM. Coronary plaque as a replacement for age as a risk factor in global risk assessment. Am J Cardiol. 2001 Jul 19;88(2A):8E-11E. doi: 10.1016/s0002-9149(01)01712-x.

    PubMed 11473737

Questions about this trial

What is this clinical trial studying?

An observational study of Atherosclerosis and Cardiovascular Disease, run by National Institute on Aging (NIA) at 2 sites 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 11 inclusion and 7 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: stopped early, as of the sponsor's last update on 9 Dec 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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 was stopped early. Results are not available in the source record.

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.

What does the primary outcome measure?

Characterize vascular age relat-BLSA (time frame: Two-three years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00246493, which also lists 3 linked publications.

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 9 Dec 2019.

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