Virginia Commonwealth University General Clinical Research Center
Richmond, Virginia, 23298, United States
NCT Number: NCT00205504
Oral contraceptives (OCs) are the most widely used method of reversible birth control. However, the long-term cardiovascular safety of the widely used low-dose OCs (ethinyl-estradiol < 50 mcg) is still debated. Although cardiovascular events are rare in young women whether they use OCs or not, the risks of myocardial infarction and ischemic stroke are increased among users of OCs who have conventional cardiovascular risk factors such as use of tobacco, diabetes or hypercholesterolemia. However, the risk of cardiovascular events in OC users with emerging cardiovascular risk factors (such as obesity and the metabolic syndrome) have not been investigated. Recently, the metabolic syndrome has been linked with the risk of cardiovascular disease. The syndrome is a clustering of risk factors in a single individual, and its underlying cause may be insulin resistance. Whether the metabolic syndrome predicts a higher cardiovascular risk in OC users has not been studied. This is a critical problem because the metabolic syndrome is prevalent in 24% of adults. Until the cardiovascular risks in users of OC are clearly defined, the appropriate use of OC with the least harm would not be possible.
The investigator's long-term goal is to understand the best way to prevent and treat cardiovascular disease in women. The objective of this particular project is to obtain pilot data on the extent to which the metabolic syndrome and obesity affects glucose metabolism and cardiovascular risks in women taking OCs. The researchers hypothesize that women with metabolic syndrome and obese women will have worsened glucose metabolism and elevated cardiovascular risks associated with OC use, when compared to normal weight women without the metabolic syndrome. Results of this study will clarify the risk factors for cardiovascular events in women taking OCs, and will serve as pilot data for a National Institutes of Health (NIH) proposal. Once the cardiovascular risk factors of OC users are understood, clinicians can make better informed decisions about contraceptive choices for their patients.
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Notify Me18 year–40 year
Female
Interventional
Phase 4
Richmond, Virginia, 23298, United States
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Obese women with or without the metabolic syndrome should have a Body Mass Index (BMI) > 30 kg/m2 and lean women should have a Body Mass Index BMI < 25 kg/m2.
Exclusion criteria
Ortho Tri Cyclen, one tablet daily, for 6 cycles
Time frame: Baseline and 6 months
Insulin sensitivity was assessed by frequent sampling intravenous glucose tolerance test (FSIVGTT).
Time frame: Baseline and 6 months
The lipid profile is assessed through blood sample analysis for low-density lipoprotein (LDL), Triglycerides and high-density lipoprotein (HDL).
Time frame: Baseline and 6 months
Inflammatory markers are assessed through blood analysis for C-reactive protein (hs-CRP) and adiponectin.
Time frame: Baseline and 6 months
Time frame: Baseline and 6 months
Waist-to-hip ratio is assessed through calculated ratio of waist and hip circumference.
Time frame: Baseline and 6 months
Inflammatory marker is assessed through blood analysis for Monocyte chemotactic protein-1 (MCP-1).
Time frame: Baseline and 6 months
Time frame: Baseline and 6 months
Body Mass Index is a calculation of height and weight: kg/m²
Time frame: Baseline and 6 months
Time frame: Baseline and 6 months
These inflammatory markers are assessed through blood analysis of Soluble Vascular Cell Adhesion Molecule (sVCAM) and soluble intercellular adhesion molecule (sICAM).
Virginia Commonwealth University
Other
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View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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