Lipoprotein Metabolism in Normal Volunteers and Patients With High Levels of Lipoproteins
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|ClinicalTrials.gov Identifier: NCT00001154|
Recruitment Status : Recruiting
First Posted : November 4, 1999
Last Update Posted : October 2, 2019
|First Submitted Date||November 3, 1999|
|First Posted Date||November 4, 1999|
|Last Update Posted Date||October 2, 2019|
|Actual Study Start Date||March 3, 1976|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures
||No outcome. This is a disease discover protocol. [ Time Frame: 5 years ]
|Original Primary Outcome Measures||Not Provided|
|Change History||Complete list of historical versions of study NCT00001154 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures||Not Provided|
|Original Secondary Outcome Measures||Not Provided|
|Current Other Pre-specified Outcome Measures||Not Provided|
|Original Other Pre-specified Outcome Measures||Not Provided|
|Brief Title||Lipoprotein Metabolism in Normal Volunteers and Patients With High Levels of Lipoproteins|
|Official Title||Lipoprotein Metabolism in Normal Volunteers and Hyperlipoproteinemic Patients|
Researchers plan to study the fat-rich particles, called lipoproteins, which circulate in the blood. This study is designed to improve understanding of normal, as well as abnormal, lipoprotein metabolism and the role it plays in the development of hardening of the arteries (atherosclerosis).
Patients participating in this study will receive injections of lipoproteins or apolipoproteins (the protein component of lipoproteins) that have been isolated and purified. These lipoproteins will be labeled with small amounts of radioactive material and sterilized before they are injected into the patient.
Patients participating in the study will be required to have blood samples taken, and provide urine samples throughout the course of the study. In addition, patient will be required to follow a specially formulated diet. Patients will be weighed throughout the course of the study.
|Detailed Description||We propose to investigate human in vivo lipoprotein metabolism using radiolabeled apolipoproteins on plasma lipoproteins. Paired kinetic studies using dual-labeled iodinated lipoproteins and apolipoproteins are performed in healthy volunteer controls with normal lipids and subjects with dyslipidemia under controlled metabolic conditions. Studies are designed to formulate metabolic pathways in patients with undefined genetic disorders of lipid metabolism as well as in healthy volunteers to provide original insights into normal and pathologic metabolic pathways. All kinetic data is computer analyzed to provide quantitative data and facilitate direct comparison of multiple studies.|
|Study Design||Observational Model: Case-Only
Time Perspective: Prospective
|Target Follow-Up Duration||Not Provided|
|Sampling Method||Non-Probability Sample|
Subjects with new and undefined dyslipidemia
|Publications *||Not Provided|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Study Completion Date||Not Provided|
|Primary Completion Date||Not Provided|
Subjects with new and undefined dyslipidemia-particularly familial disorders with extreme phenotypes.
Healthy normal volunteers - (18 years old or older) controls to investigate the formation of HDL for prebeta HDL.
Healthy control volunteers are initially screened for secondary causes of hyperlipidemia and are excluded if they have any clinically significant laboratory abnormality (i.e., liver disease, disease, kidney disease, endocrine disease,), chronic medical problems (i.e., hypertension, migraines, inflammatory bowel, hepatitis, HIV) or require any chronic medications (i.e., acne, asthma).
The healthy control volunteers weight must fall within the current guidelines for ideal body weight.
Unwilling to follow metabolic diet.
Allergic to iodine.
Unable to sign consent form.
|Ages||18 Years to 80 Years (Adult, Older Adult)|
|Accepts Healthy Volunteers||Yes|
|Listed Location Countries||United States|
|Removed Location Countries|
|Other Study ID Numbers||760051
|Has Data Monitoring Committee||Not Provided|
|U.S. FDA-regulated Product||Not Provided|
|IPD Sharing Statement||Not Provided|
|Responsible Party||National Institutes of Health Clinical Center (CC) ( National Heart, Lung, and Blood Institute (NHLBI) )|
|Study Sponsor||National Heart, Lung, and Blood Institute (NHLBI)|
|PRS Account||National Institutes of Health Clinical Center (CC)|
|Verification Date||September 26, 2019|