Clinical Trials Logo

Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00005483
Other study ID # 4970
Secondary ID R01HL052630
Status Completed
Phase N/A
First received May 25, 2000
Last updated January 6, 2016
Start date December 1994
Est. completion date July 1999

Study information

Verified date January 2016
Source Tufts University
Contact n/a
Is FDA regulated No
Health authority United States: Federal Government
Study type Observational

Clinical Trial Summary

To describe the distribution of homocysteine and prevalence of hyperhomocysteinemia with emphasis on race, sex and age. To determine the extent to which hyperhomocysteinemia is associated with status of folate and vitamin B12. Finally, to describe the relationships between prevalence of hyperhomocysteinemia and prevalence of cardiovascular disease and assess the importance of this risk factor as a cause of vascular disease among US adults. The study was renewed for one year to investigate normal homocysteine concentrations among children and to identify nutritional and non-nutritional determinants of total homocysteine concentrations in children.


Description:

BACKGROUND:

Hyperhomocysteinemia, a condition of elevated plasma homocysteine concentrations resulting from impaired sulfur amino acid metabolism, may be a powerful risk factor for occlusive vascular disease. However, little is known about the distribution of hyperhomocysteinemia in the general population. Furthermore, inadequate nutritional status might be a strong determinant of hyperhomocysteinemia, but its importance at a population level (as measured by the prevalence of hyperhomocysteinemia associated with inadequate nutrition) has received little study. Finally, levels of homocysteine associated with elevated risk of vascular disease have not been clearly established.

DESIGN NARRATIVE:

Using previously collected plasma samples, studies were conducted on the distribution of homocysteine and prevalence of hyperhomocysteinemia with emphasis on race, sex and age. Investigations were undertaken on the extent of the relationship of hyperhomocysteinemia to folate and vitamin B12. Finally, the relationships were described between prevalence of hyperhomocysteinemia and prevalence of cardiovascular disease and the importance of this risk factor as a cause of vascular disease among US adults was assessed..


Recruitment information / eligibility

Status Completed
Enrollment 0
Est. completion date July 1999
Est. primary completion date
Accepts healthy volunteers No
Gender Male
Age group N/A to 100 Years
Eligibility No eligibility criteria

Study Design

N/A


Locations

Country Name City State
n/a

Sponsors (2)

Lead Sponsor Collaborator
Tufts University National Heart, Lung, and Blood Institute (NHLBI)

References & Publications (2)

Jacques PF, Rosenberg IH, Rogers G, Selhub J, Bowman BA, Gunter EW, Wright JD, Johnson CL. Serum total homocysteine concentrations in adolescent and adult Americans: results from the third National Health and Nutrition Examination Survey. Am J Clin Nutr. 1999 Mar;69(3):482-9. — View Citation

Selhub J, Jacques PF, Rosenberg IH, Rogers G, Bowman BA, Gunter EW, Wright JD, Johnson CL. Serum total homocysteine concentrations in the third National Health and Nutrition Examination Survey (1991-1994): population reference ranges and contribution of vitamin status to high serum concentrations. Ann Intern Med. 1999 Sep 7;131(5):331-9. — View Citation

See also
  Status Clinical Trial Phase
Recruiting NCT05650307 - CV Imaging of Metabolic Interventions
Recruiting NCT05654272 - Development of CIRC Technologies
Recruiting NCT04515303 - Digital Intervention Participation in DASH
Completed NCT04056208 - Pistachios Blood Sugar Control, Heart and Gut Health Phase 2
Recruiting NCT04417387 - The Genetics and Vascular Health Check Study (GENVASC) Aims to Help Determine Whether Gathering Genetic Information Can Improve the Prediction of Risk of Coronary Artery Disease (CAD)
Not yet recruiting NCT06211361 - Cardiac Rehabilitation Program in Patients With Cardiovascular Disease N/A
Not yet recruiting NCT06032572 - Evaluation of the Safety and Effectiveness of the VRS100 System in PCI (ESSENCE) N/A
Recruiting NCT04514445 - The BRAVE Study- The Identification of Genetic Variants Associated With Bicuspid Aortic Valve Using a Combination of Case-control and Family-based Approaches.
Enrolling by invitation NCT04253054 - Chinese Multi-provincial Cohort Study-Beijing Project
Completed NCT03273972 - INvestigating the Lowest Threshold of Vascular bENefits From LDL Lowering With a PCSK9 InhibiTor in healthY Volunteers N/A
Completed NCT03680638 - The Effect of Antioxidants on Skin Blood Flow During Local Heating Phase 1
Recruiting NCT04843891 - Evaluation of PET Probe [64]Cu-Macrin in Cardiovascular Disease, Cancer and Sarcoidosis. Phase 1
Completed NCT04083846 - Clinical Study to Investigate the Pharmacokinetic Profiles and Safety of High-dose CKD-385 in Healthy Volunteers(Fed) Phase 1
Completed NCT04083872 - Clinical Study to Investigate the Pharmacokinetic Profiles and Safety of Highdose CKD-385 in Healthy Volunteers(Fasting) Phase 1
Completed NCT03619148 - The Incidence of Respiratory Symptoms Associated With the Use of HFNO N/A
Completed NCT03466333 - Postnatal Enalapril to Improve Cardiovascular fUnction Following Preterm Pre-eclampsia Phase 2
Completed NCT03693365 - Fluid Responsiveness Tested by the Effective Pulmonary Blood Flow During a Positive End-expiratory Trial
Completed NCT04082585 - Total Health Improvement Program Research Project
Completed NCT05132998 - Impact of a Comprehensive Cardiac Rehabilitation Program Framework Among High Cardiovascular Risk Cancer Survivors N/A
Completed NCT05067114 - Solutions for Atrial Fibrillation Edvocacy (SAFE)