Full Text View
Tabular View
No Study Results Posted
Related Studies
Inflammation Markers Over Time in Cardiovascular Disease
This study has been completed.
Study NCT00005692   Information provided by National Heart, Lung, and Blood Institute (NHLBI)
First Received: May 25, 2000   Last Updated: June 23, 2005   History of Changes

May 25, 2000
June 23, 2005
April 1992
 
 
 
Complete list of historical versions of study NCT00005692 on ClinicalTrials.gov Archive Site
 
 
 
Inflammation Markers Over Time in Cardiovascular Disease
 

To determine inflammation markers over time in cardiovascular disease. To test the hypothesis that measures of coagulation and fibrinolysis correlate with the incidence of coronary heart disease (CHD) and other thrombosis related disorders, and to help identify those individuals at greatest risk, using the Cardiovascular Health Study (CHS) and Honolulu Heart Program (HHP) populations. These two genetically distinct populations had different event rates for CHD, and offered a unique opportunity to test associations that were uncovered by comparing results across populations.

BACKGROUND:

Coronary heart disease (CHD) and other thrombosis related disorders are a major source of morbidity and mortality in the United States and the world. To a certain extent they are diseases of the elderly, with the majority of overt CHD occurring in persons over the age of 65. Recently, fibrinogen and factor VII have been implicated as independent CHD risk factors in middle age populations, although causative roles have not been established. These studies increased understanding of the relationship of thrombosis to cardiovascular risk.

DESIGN NARRATIVE:

Beginning in 1992, the study tested the hypothesis that measures of coagulation and fibrinolysis correlated with the incidence of coronary heart disease (CHD) and other thrombosis related disorders, and identified those individuals at greatest risk, using the Cardiovascular Health Study (CHS) and Honolulu Heart Program (HHP) populations. These two genetically distinct populations had different event rates for CHD, and offered a unique opportunity to test associations that were uncovered by comparing results across populations. The study examined selected measures of coagulation and fibrinolysis in individuals 65 years and older: measures of pro-coagulation (factor antigen VII, prothrombin fragment 1.2, fibrinopeptide A and thrombin - antithrombin III complex), measures of coagulation inhibition (protein C and protein S, antithrombin III, and the lipoprotein associated coagulation inhibitor (LACI), and measures of fibrinolysis (plasminogen activator inhibitor-1 (PAI-1), tissue plasminogen activator-PAI-1 complex, plasmin-alpha-2 antiplasmin complex, and Lp(a).

A case/control design was used to determine the relationship between the above measurements and the incidence of CHD (and other thrombosis related disorders). The short and medium term biological variability of the above measures was determined to aid in interpretation of observed differences. Finally, the distribution of the above measurements was established in both cohorts and their relationships to other variables in the extensive CHS and HHP data bases ascertained.

The study was renewed in 1999 to determine inflammation markers over time in cardiovascular disease.

 
Observational
Natural History
  • Cardiovascular Diseases
  • Coronary Disease
  • Heart Diseases
  • Thrombosis
  • Inflammation
 
 

*   Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline.
 
Completed
 
November 2002
 

No eligibility criteria

Both
65 Years and older
No
Contact information is only displayed when the study is recruiting subjects
 
 
NCT00005692
 
4222
National Heart, Lung, and Blood Institute (NHLBI)
 
Investigator: Russell Tracy University of Vermont
National Heart, Lung, and Blood Institute (NHLBI)
March 2005

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP