Cardiovascular DiseasesNCT00064519
Genetics of CRP in Families With Myocardial Infarction
An observational study of Cardiovascular Diseases and Coronary Disease, run by Medical College of Wisconsin.
Trial summary
To investigate the genetics of C reactive protein in families with myocardial infarction. Read more about this study
- Who is it for?
- Ages 18 to 100 years
- Conditions the study is for
- Cardiovascular Diseases, Coronary Disease, Heart Diseases
- How many people
- 1,406 participants
- Where
- No sites listed yet
- Study dates
- Jul 2003to Jun 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 18 to 100 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Individuals having CAD and individuals not having CAD
- First Part DNA Collection a.) Inclusion Criteria i.) Being 18 years of age or older. ii.) Having had a cardiac catheterization procedure performed or undergoing one in the near future. iii.) A person having a family history of coronary artery disease and having at least one family member that has had a cardiac catheterization that is willing to participate. iv.) Having coronary artery (right, left main, circumflex, marginal and/or diagonal) blockage in a specific portion of the vessel (ostial, proximal, mid and/or distal). b.) Exclusion Criteria i.) Having had a bone marrow transplant.
- Second Part Coronary Collateralization and Extended Phenotyping a.) Inclusion Criteria i.) Having participated in DNA collection. ii.) Having at least one coronary artery with 100% blockage or iii.) Having normal coronary arteries with no blockage b.) Exclusion Criteria i.) Having received a diagnosis and treatment for kidney disease, cancer, myocardial infarction within the last three (3) months. ii.) Having a heart transplant.
About this study
To investigate the genetics of C reactive protein in families with myocardial infarction.
Read the detailed description
BACKGROUND:
Coronary artery disease (CAD) and myocardial infarction (MI) are the leading causes of death in the Western world. Numerous epidemiological studies have demonstrated the impact of various risk factors, such as arterial hypertension, hypercholesterolemia and diabetes mellitus. While these risk factors are partly under genetic control, a positive family history remains an additional independent predictor of CAD, suggesting the presence of as yet unidentified susceptibility loci. Given the enormous public health burden of CAD, there is significant interest in identifying its specific genetic foundations. As intensive experimental investigations continue, the inflammatory component of the disease process leading to atherosclerosis evolves as a key aspect in the disease process. Recent evidence demonstrates that systemic markers of inflammation such as C reactive protein (CRP) can predict those at high risk of coronary events. CRP emerges with much attention as both a diagnostic marker and therapeutic target with serum levels determined to a significant extent by genetic factors.
DESIGN NARRATIVE:
To elucidate the genetic basis of the inflammatory component of myocardial infarction and the regulation of C reactive protein, a gene function oriented evaluation of candidate genes will be conducted. Therefore the specific aims are as follows, 1. Identify positional candidate genes within regions identified for MI and CRP which are functionally related to inflammation and inflammatory processes. Sequence variation in selected candidate genes will be identified. 2. Evaluate the effect of these variants with regard to MI and CRP in two different ethnic populations: a family set of European Caucasians and a population-based, Hispanic family dataset. The role of CRP will be evaluated as a predictor of cardiovascular events in the study populations. Since clinical follow up data are available on both study populations, the extent to which CRP contributes to an increased risk for cardiovascular events will be analyzed.
- Medical subject headings
- Cardiovascular Diseases, Coronary Disease, Heart Diseases, Myocardial Infarction
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Families with MI | In conjunction with collaborators in Germany, we have established one of the largest collections of families with MI, comprising 1,406 individuals in 513 Western-European families. Based on this collection, our total genome scan and linkage analysis has identified a region on chromosome 14 with a significant linkage signal for myocardial infarction (LOD = 3.9, pointwise P = 0.00015, genome-wide P < 0.05)5. Preliminary results from an association study in a subset of these families has identified a small set of single nucleotide polymorphisms (SNPs) within candidate genes in this region as being suggestively associated with MI. No drugs are to be administre |
What is being measured
The primary outcome is the main question the study is designed to answer.
Association of markers with cardiovascular event
Measured: Event recorded at time of recruitment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Jul 2003 (estimated)
- Study startJul 2003
- Primary completionJun 2008
- Study completionJun 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 Medical College of WisconsinThe 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
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 1,406 participants (actual)
Sponsor and investigators
- Lead sponsor
- Medical College of Wisconsin
- Sponsor type
- University, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Responsible party
- Principal investigator, Ulrich Broeckel MD, Medical College of Wisconsin
- Investigators
- Ulrich Broeckel, Principal investigator, Medical College of Wisconsin
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00064519
- Sponsor's protocol ID
- 1225
- Other IDs
- R01HL074321
- Status last verified
- Sep 2015
- First submitted
- 8 Jul 2003
- Last updated
- 24 Sep 2015
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 Sep 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Genetics of CRP in Families With Myocardial Infarction
- ClinicalTrials.gov ID
- NCT00064519
- Acronym / sponsor ID
- 1225
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 1,406 participants (actual)
- Lead sponsor
- Medical College of WisconsinUniversity, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI)
- Study start
- Jul 2003
- Primary completion
- Jun 2008 (actual)
- Study completion
- Jun 2008 (actual)
- First posted
- 10 Jul 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 genetics of C reactive protein in families with myocardial infarction.
Detailed description
BACKGROUND:
Coronary artery disease (CAD) and myocardial infarction (MI) are the leading causes of death in the Western world. Numerous epidemiological studies have demonstrated the impact of various risk factors, such as arterial hypertension, hypercholesterolemia and diabetes mellitus. While these risk factors are partly under genetic control, a positive family history remains an additional independent predictor of CAD, suggesting the presence of as yet unidentified susceptibility loci. Given the enormous public health burden of CAD, there is significant interest in identifying its specific genetic foundations. As intensive experimental investigations continue, the inflammatory component of the disease process leading to atherosclerosis evolves as a key aspect in the disease process. Recent evidence demonstrates that systemic markers of inflammation such as C reactive protein (CRP) can predict those at high risk of coronary events. CRP emerges with much attention as both a diagnostic marker and therapeutic target with serum levels determined to a significant extent by genetic factors.
DESIGN NARRATIVE:
To elucidate the genetic basis of the inflammatory component of myocardial infarction and the regulation of C reactive protein, a gene function oriented evaluation of candidate genes will be conducted. Therefore the specific aims are as follows, 1. Identify positional candidate genes within regions identified for MI and CRP which are functionally related to inflammation and inflammatory processes. Sequence variation in selected candidate genes will be identified. 2. Evaluate the effect of these variants with regard to MI and CRP in two different ethnic populations: a family set of European Caucasians and a population-based, Hispanic family dataset. The role of CRP will be evaluated as a predictor of cardiovascular events in the study populations. Since clinical follow up data are available on both study populations, the extent to which CRP contributes to an increased risk for cardiovascular events will be analyzed.
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Families with MI | – | –In conjunction with collaborators in Germany, we have established one of the largest collections of families with MI, comprising 1,406 individuals in 513 Western-European families. Based on this collection, our total genome scan and linkage analysis has identified a region on chromosome 14 with a significant linkage signal for myocardial infarction (LOD = 3.9, pointwise P = 0.00015, genome-wide P < 0.05)5. Preliminary results from an association study in a subset of these families has identified a small set of single nucleotide polymorphisms (SNPs) within candidate genes in this region as being suggestively associated with MI. No drugs are to be administre |
Who may qualify
- Ages
- 18 to 100 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Individuals having CAD and individuals not having CAD
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
Association of markers with cardiovascular event
Time frame: Event recorded at time of recruitment
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 24 Sep 2015.
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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.
Ulrich Broeckel principal investigator
Medical College of Wisconsin
Questions about this trial
What is this clinical trial studying?
An observational study of Cardiovascular Diseases and Coronary Disease, run by Medical College of Wisconsin.
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 24 Sep 2015. 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.
What does the primary outcome measure?
Association of markers with cardiovascular event (time frame: Event recorded at time of recruitment). It is what the study was designed to measure, not a finding.
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 24 Sep 2015.