Cardiovascular DiseasesNCT00070668
Inflammatory Genomics in Human Carotid Artery Disease
An observational study of Cardiovascular Diseases and Atherosclerosis, run by National Heart, Lung, and Blood Institute (NHLBI).
Trial summary
To investigate the relationship between genetic variation in genes for inflammation and carotid artery atherosclerosis. Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Cardiovascular Diseases, Atherosclerosis, Carotid Artery Diseases
- How many people
- Not given
- Where
- No sites listed yet
- Study dates
- Sep 2003to Aug 2008
- 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 Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
No eligibility criteria
About this study
To investigate the relationship between genetic variation in genes for inflammation and carotid artery atherosclerosis.
Read the detailed description
BACKGROUND:
Atherosclerotic vascular disease is a major source of morbidity and mortality. Inflammation plays an important role in atherosclerosis. The tools to systematically study the extent to which genetic variation determines risk of and progression of atherosclerosis are only now becoming available.
DESIGN NARRATIVE:
The study will evaluate the role of genetic variation in inflammatory pathway genes at 29 loci on the risk and progression of carotid artery atherosclerotic disease (CAAD). Genes to be evaluated include those potentially involved in plaque initiation and progression. The investigators will evaluate single nucleotide polymorphisms (SNPs) informative for the common locus haplotypes. Choice of informative polymorphisms for evaluation is based on the genes' evolutionary history. They will evaluate progression effects in subjects with CAAD followed longitudinally by noninvasive magnetic resonance (MR) techniques over 3 years. Risk will be evaluated by case-control comparisons. In additions to evaluating genetic polymorphisms, they will evaluate the intervening phenotypes of protein level for fibrinogen, C-reactive protein, serum amyloid A, and interleukin-6. Independence of genetic predictors from traditional cardiovascular risk factors will be evaluated.
The major specific aims are: Aim 1. Test for inflammatory genetic effects and protein level in CAAD progression in 550 subjects with CAAD (275 with 15-49% and 275 with 50-79% baseline CAAD stenosis) evaluated by 3-year magnetic resonance image follow-up of percent lumen stenosis; Aim 2. Determine whether the variation in the inflammatory genes or protein levels predicts 810 case vs. 810 control status with a case distribution of 335 subject with 15-49%, 275 with 50-75% and 200 with >80% carotid artery stenosis at baseline. Age (onset of vascular disease for cases, current age for controls)-, sex-, race-, and hospital-matched controls will have less than 15% stenosis on carotid duplex ultrasound. Genes that are implicated in disease may eventually allow targeted therapy.
- Medical subject headings
- Cardiovascular Diseases, Atherosclerosis, Carotid Artery Diseases, Inflammation
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Oct 2003 (estimated)
- Study startSep 2003
- Primary completionAug 2008
- Study completionAug 2008
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Cardiovascular DiseasesStudies of the same condition, open and under way.
- More trials run by National Heart, Lung, and Blood Institute (NHLBI)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
Sponsor and investigators
- Sponsor type
- US National Institutes of Health
- Investigators
- Gail Jarvik, University of Washington
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00070668
- Sponsor's protocol ID
- 1237
- Status last verified
- Aug 2008
- First submitted
- 6 Oct 2003
- Last updated
- 21 Aug 2008
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 21 Aug 2008. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Inflammatory Genomics in Human Carotid Artery Disease
- ClinicalTrials.gov ID
- NCT00070668
- Acronym / sponsor ID
- 1237
- Study type
- Observational
- Recruitment status
- Completed
- Lead sponsor
- National Heart, Lung, and Blood Institute (NHLBI)US National Institutes of Health
- Study start
- Sep 2003
- Primary completion
- Aug 2008 (actual)
- Study completion
- Aug 2008 (actual)
- First posted
- 9 Oct 2003 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
To investigate the relationship between genetic variation in genes for inflammation and carotid artery atherosclerosis.
Detailed description
BACKGROUND:
Atherosclerotic vascular disease is a major source of morbidity and mortality. Inflammation plays an important role in atherosclerosis. The tools to systematically study the extent to which genetic variation determines risk of and progression of atherosclerosis are only now becoming available.
DESIGN NARRATIVE:
The study will evaluate the role of genetic variation in inflammatory pathway genes at 29 loci on the risk and progression of carotid artery atherosclerotic disease (CAAD). Genes to be evaluated include those potentially involved in plaque initiation and progression. The investigators will evaluate single nucleotide polymorphisms (SNPs) informative for the common locus haplotypes. Choice of informative polymorphisms for evaluation is based on the genes' evolutionary history. They will evaluate progression effects in subjects with CAAD followed longitudinally by noninvasive magnetic resonance (MR) techniques over 3 years. Risk will be evaluated by case-control comparisons. In additions to evaluating genetic polymorphisms, they will evaluate the intervening phenotypes of protein level for fibrinogen, C-reactive protein, serum amyloid A, and interleukin-6. Independence of genetic predictors from traditional cardiovascular risk factors will be evaluated.
The major specific aims are: Aim 1. Test for inflammatory genetic effects and protein level in CAAD progression in 550 subjects with CAAD (275 with 15-49% and 275 with 50-79% baseline CAAD stenosis) evaluated by 3-year magnetic resonance image follow-up of percent lumen stenosis; Aim 2. Determine whether the variation in the inflammatory genes or protein levels predicts 810 case vs. 810 control status with a case distribution of 335 subject with 15-49%, 275 with 50-75% and 200 with >80% carotid artery stenosis at baseline. Age (onset of vascular disease for cases, current age for controls)-, sex-, race-, and hospital-matched controls will have less than 15% stenosis on carotid duplex ultrasound. Genes that are implicated in disease may eventually allow targeted therapy.
Study design
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 21 Aug 2008.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Gail Jarvik
University of Washington
Questions about this trial
What is this clinical trial studying?
An observational study of Cardiovascular Diseases and Atherosclerosis, run by National Heart, Lung, and Blood Institute (NHLBI).
The full registered description is in the About this study section and the official record.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 21 Aug 2008. 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 21 Aug 2008.