Cardiovascular DiseasesNCT00007384
Longitudinal LDL-C Studies in Black and White Families
An observational study of Cardiovascular Diseases and Atherosclerosis, run by National Heart, Lung, and Blood Institute (NHLBI).
Trial summary
To longitudinally investigate multigenerational familial clustering of plasma low density lipoprotein cholesterol (LDL-C), with particular emphasis on the influences of apoE genotypes and various 'behaviors'. Read more about this study
- Who is it for?
- Ages Up to 100 years
- Conditions the study is for
- Cardiovascular Diseases, Atherosclerosis
- How many people
- Not given
- Where
- No sites listed yet
- Study dates
- Jul 2000to Jun 2006
- 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 longitudinally investigate multigenerational familial clustering of plasma low density lipoprotein cholesterol (LDL-C), with particular emphasis on the influences of apoE genotypes and various 'behaviors'.
Read the detailed description
BACKGROUND:
Elevated concentrations of plasma low density lipoprotein cholesterol (LDL-C), a major risk factor for coronary heart disease, cluster significantly in families. This clustering has been observed in cross-sectional studies in both black and white families, but longitudinal data on the familial clustering of LDL-C are virtually nonexistent.
DESIGN NARRATIVE:
The longitudinal study will provide new and important information about changes in the familial low density lipoprotein cholesterol (LDL-C) correlations in black and white families from the period of shared household environments to that of separate households, using families from the Princeton Lipid Research Clinics (LRC) Prevalence (1973-75) and Family Studies (1975-76). The study will also provide important information on changes in individual LDL-C levels over the same 25 year period. The former student participants were six to 18 years of age and are now 32 to 45 years of age; their parents were (largely) 26 to 55 years of age and are now 51 to 80 years of age. Plasma LDL-C concentrations in children and adults have been shown to associate with the apolipoprotein (apo) E genotype, with obesity, and with such elective behaviors as diet, cigarette smoking, and physical activity. In the LRC Study, measurements were made of LDL-C, body habitus, elective behaviors, and the family history of cardiovascular disease (CVD). The study will obtain repeat measures of these factors, plus determine the apo E isoforms. Changes in individual LDL-C levels and in familial associations can then be assessed in association with apo E isoforms, body composition, elective behaviors, and family history of CVD. Family members share ranges of body weight, patterns of fat distribution, dietary and smoking habits, and physical activity levels. The extent to which the familial clustering of LDL-C levels is determined by apo E isoforms interacting with the similar levels of obesity, and with the similar behaviors, is not currently known.
- Conditions
- Cardiovascular Diseases, Atherosclerosis
- Medical subject headings
- Cardiovascular Diseases, Atherosclerosis
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Dec 2000 (estimated)
- Study startJul 2000
- Primary completionJun 2006
- Study completionJun 2006
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- 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
- John Morrison, Children's Hospital & Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00007384
- Sponsor's protocol ID
- 957
- Other IDs
- R01HL062394
- Status last verified
- Jan 2008
- First submitted
- 19 Dec 2000
- Last updated
- 18 Feb 2016
- Results posted
- No
Publications
Miles MV, Horn PS, Tang PH, Morrison JA, Miles L, DeGrauw T, Pesce AJ. Age-related changes in plasma coenzyme Q10 concentrations and redox state in apparently healthy children and adults. Clin Chim Acta. 2004 Sep;347(1-2):139-44. doi: 10.1016/j.cccn.2004.04.003.
PubMed 15313151Miles MV, Morrison JA, Horn PS, Tang PH, Pesce AJ. Coenzyme Q10 changes are associated with metabolic syndrome. Clin Chim Acta. 2004 Jun;344(1-2):173-9. doi: 10.1016/j.cccn.2004.02.016.
PubMed 15149886Miles MV, Horn PS, Morrison JA, Tang PH, DeGrauw T, Pesce AJ. Plasma coenzyme Q10 reference intervals, but not redox status, are affected by gender and race in self-reported healthy adults. Clin Chim Acta. 2003 Jun;332(1-2):123-32. doi: 10.1016/s0009-8981(03)00137-2.
PubMed 12763289
Study at a glance
From the registry record, last updated by the sponsor on 18 Feb 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Longitudinal LDL-C Studies in Black and White Families
- ClinicalTrials.gov ID
- NCT00007384
- Acronym / sponsor ID
- 957
- Conditions
- Cardiovascular Diseases, Atherosclerosis
- Study type
- Observational
- Recruitment status
- Completed
- Lead sponsor
- National Heart, Lung, and Blood Institute (NHLBI)US National Institutes of Health
- Study start
- Jul 2000
- Primary completion
- Jun 2006 (actual)
- Study completion
- Jun 2006 (actual)
- First posted
- 19 Dec 2000 (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 longitudinally investigate multigenerational familial clustering of plasma low density lipoprotein cholesterol (LDL-C), with particular emphasis on the influences of apoE genotypes and various 'behaviors'.
Detailed description
BACKGROUND:
Elevated concentrations of plasma low density lipoprotein cholesterol (LDL-C), a major risk factor for coronary heart disease, cluster significantly in families. This clustering has been observed in cross-sectional studies in both black and white families, but longitudinal data on the familial clustering of LDL-C are virtually nonexistent.
DESIGN NARRATIVE:
The longitudinal study will provide new and important information about changes in the familial low density lipoprotein cholesterol (LDL-C) correlations in black and white families from the period of shared household environments to that of separate households, using families from the Princeton Lipid Research Clinics (LRC) Prevalence (1973-75) and Family Studies (1975-76). The study will also provide important information on changes in individual LDL-C levels over the same 25 year period. The former student participants were six to 18 years of age and are now 32 to 45 years of age; their parents were (largely) 26 to 55 years of age and are now 51 to 80 years of age. Plasma LDL-C concentrations in children and adults have been shown to associate with the apolipoprotein (apo) E genotype, with obesity, and with such elective behaviors as diet, cigarette smoking, and physical activity. In the LRC Study, measurements were made of LDL-C, body habitus, elective behaviors, and the family history of cardiovascular disease (CVD). The study will obtain repeat measures of these factors, plus determine the apo E isoforms. Changes in individual LDL-C levels and in familial associations can then be assessed in association with apo E isoforms, body composition, elective behaviors, and family history of CVD. Family members share ranges of body weight, patterns of fat distribution, dietary and smoking habits, and physical activity levels. The extent to which the familial clustering of LDL-C levels is determined by apo E isoforms interacting with the similar levels of obesity, and with the similar behaviors, is not currently known.
Study design
Who may qualify
- Ages
- Up to 100 years
- 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 18 Feb 2016.
- Background: PubMed 15313151Miles MV, Horn PS, Tang PH, Morrison JA, Miles L, DeGrauw T, Pesce AJ. Age-related changes in plasma coenzyme Q10 concentrations and redox state in apparently healthy children and adults. Clin Chim Acta. 2004 Sep;347(1-2):139-44. doi: 10.1016/j.cccn.2004.04.003.
- Background: PubMed 15149886Miles MV, Morrison JA, Horn PS, Tang PH, Pesce AJ. Coenzyme Q10 changes are associated with metabolic syndrome. Clin Chim Acta. 2004 Jun;344(1-2):173-9. doi: 10.1016/j.cccn.2004.02.016.
- Background: PubMed 12763289Miles MV, Horn PS, Morrison JA, Tang PH, DeGrauw T, Pesce AJ. Plasma coenzyme Q10 reference intervals, but not redox status, are affected by gender and race in self-reported healthy adults. Clin Chim Acta. 2003 Jun;332(1-2):123-32. doi: 10.1016/s0009-8981(03)00137-2.
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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.
John Morrison
Children's Hospital & Medical Center
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.
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 18 Feb 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?
On the ClinicalTrials.gov record for NCT00007384, 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 18 Feb 2016.