Oral Contraceptives in the Metabolic Syndrome
Study Details
Study Description
Brief Summary
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.
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
|
Phase 4 |
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Active Comparator: Obese women with metabolic syndrome
|
Drug: Ortho Tri Cyclen
Ortho Tri Cyclen, one tablet daily, for 6 cycles
|
Active Comparator: Obese women without metabolic syndrome
|
Drug: Ortho Tri Cyclen
Ortho Tri Cyclen, one tablet daily, for 6 cycles
|
Active Comparator: lean women without metabolic syndrome
|
Drug: Ortho Tri Cyclen
Ortho Tri Cyclen, one tablet daily, for 6 cycles
|
Outcome Measures
Primary Outcome Measures
- Changes in Insulin Sensitivity Associated With Oral Contraceptive (OC) Use Compared Among (1) Obese Women and (2) Lean Women [Baseline and 6 months]
Insulin sensitivity was assessed by frequent sampling intravenous glucose tolerance test (FSIVGTT).
Secondary Outcome Measures
- Changes in Lipid Profile Compared Associated With OC Use Among (1) Obese Women and (2) Lean Women [Baseline and 6 months]
The lipid profile is assessed through blood sample analysis for low-density lipoprotein (LDL), Triglycerides and high-density lipoprotein (HDL).
- Inflammatory Marker Changes, High Sensitive C-reactive Protein (Hs-CRP) and Adiponectin, Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women [Baseline and 6 months]
Inflammatory markers are assessed through blood analysis for C-reactive protein (hs-CRP) and adiponectin.
- Changes in Estrogen Metabolites (Plasma) Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women [Baseline and 6 months]
- Changes in Waist-to-Hip Ratio Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women [Baseline and 6 months]
Waist-to-hip ratio is assessed through calculated ratio of waist and hip circumference.
- Inflammatory Marker Changes (MCP-1) Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women [Baseline and 6 months]
Inflammatory marker is assessed through blood analysis for Monocyte chemotactic protein-1 (MCP-1).
- Changes in Blood Pressure Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women [Baseline and 6 months]
- Changes in Body Mass Index (BMI) Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women [Baseline and 6 months]
Body Mass Index is a calculation of height and weight: kg/m²
- Changes in Waist Circumference Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women [Baseline and 6 months]
- Inflammatory Marker Changes, Soluble Vascular Cell Adhesion Molecule (sVCAM) and Soluble Intercellular Adhesion Molecule (sICAM), Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women [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).
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Acceptable health based on interview, medical history, physical examination, and laboratory tests (comprehensive metabolic panel - SMA20, and complete blood count - CBC);
-
Have not taken oral contraceptives (OCs) in the past 3 months;
-
Ability to comply with the requirements of the study;
-
Ability and willingness to provide signed, witnessed informed consent. In addition, women with the metabolic syndrome must meet the National Cholesterol Education Program (NCEP) defined criteria of the metabolic syndrome, that is, having at least 3 of the 5 factors:
-
increased waist circumference > 35 inches,
-
hypertriglyceridemia ≥ 150 mg/dL,
-
low high-density lipoprotein (HDL) cholesterol < 50 mg/dL in women,
-
hypertension (≥ 130/≥ 85 mmHg),
-
fasting glucose ≥ 100 mg/dL.
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:
-
Diabetes mellitus by fasting glucose or a 2-hour oral glucose tolerance test (OGTT);
-
Clinically significant pulmonary, cardiac (including but not limited to ischemic heart disease, stable/unstable angina, and congestive heart failure), renal, hepatic, cholestatic, neurologic, psychiatric, infectious, and malignant disease (other than melanoma skin cancer);
-
History of thromboembolism, myocardial infarction, cerebrovascular accident, vascular disease, known coagulopathy, prolonged immobilization, or recent major surgery (within past 6 months);
-
Systolic blood pressure greater than 160 mmHg or diastolic blood pressure greater than 100 mmHg (mild hypertension is not an exclusion criterion);
-
History of breast cancer, migraine headaches, or age ≥ 35 years and smoker of ≥ 20 cigarettes/day;
-
Use of metformin, thiazolidinediones, anti-hyperlipidemic drugs, anti-hypertensive drugs, glucocorticoids, or anti-androgens (spironolactone, flutamide, etc.) within 3 months;
-
Documented or suspected illicit drug abuse or alcoholism within one year;
-
Ingestion of any investigational drugs within 3 months prior to the study onset; and
-
Pregnancy or lactation (≤ 6 weeks postpartum);
-
Hematocrit < 33g/dL. These exclusion criteria are based on study requirements and also go beyond guidelines for OC use published by the World Health Organization.
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | Virginia Commonwealth University General Clinical Research Center | Richmond | Virginia | United States | 23298 |
Sponsors and Collaborators
- Virginia Commonwealth University
Investigators
- Principal Investigator: Kai I Cheang, Pharm.D., Virginia Commonwealth University
- Study Director: John E Nestler, M.D., Virginia Commonwealth University
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- HM4060
Study Results
Participant Flow
Recruitment Details | |
---|---|
Pre-assignment Detail | Although 46 completed informed consent, only 36 initiated the study. Among The participants who did not begin the study were lost to follow-up prior to beginning the protocol, were no shows, or withdrew from the study before beginning study procedures. |
Arm/Group Title | Obese Women | Lean Women |
---|---|---|
Arm/Group Description | Women with Body Mass Index (BMI) >30 kg/m². Note: Only two arms were analyzed for the results. Women who were candidates for taking oral contraceptive pills and had the metabolic syndrome could not be recruited. That is because some inclusion criteria for metabolic syndrome are actually exclusion criteria for safe oral contraceptive use. | Women with Body Mass Index)BMI <25 kg/m² |
Period Title: Overall Study | ||
STARTED | 21 | 15 |
COMPLETED | 14 | 15 |
NOT COMPLETED | 7 | 0 |
Baseline Characteristics
Arm/Group Title | Obese Women | Lean Women | Total |
---|---|---|---|
Arm/Group Description | Women with Body Mass Index (BMI) >30 kg/m². Note: Only two arms were analyzed for the results. Women who were candidates for taking oral contraceptive pills and had the metabolic syndrome could not be recruited. That is because some inclusion criteria for metabolic syndrome are actually exclusion criteria for safe oral contraceptive use. | Women with Body Mass Index)BMI <25 kg/m² | Total of all reporting groups |
Overall Participants | 21 | 15 | 36 |
Age (Count of Participants) | |||
<=18 years |
0
0%
|
0
0%
|
0
0%
|
Between 18 and 65 years |
21
100%
|
15
100%
|
36
100%
|
>=65 years |
0
0%
|
0
0%
|
0
0%
|
Age (years) [Mean (Standard Deviation) ] | |||
Mean (Standard Deviation) [years] |
25.3
(6.9)
|
21.4
(2.3)
|
23.4
(5.8)
|
Sex: Female, Male (Count of Participants) | |||
Female |
21
100%
|
15
100%
|
36
100%
|
Male |
0
0%
|
0
0%
|
0
0%
|
Region of Enrollment (participants) [Number] | |||
United States |
21
100%
|
15
100%
|
36
100%
|
Outcome Measures
Title | Changes in Insulin Sensitivity Associated With Oral Contraceptive (OC) Use Compared Among (1) Obese Women and (2) Lean Women |
---|---|
Description | Insulin sensitivity was assessed by frequent sampling intravenous glucose tolerance test (FSIVGTT). |
Time Frame | Baseline and 6 months |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Obese Women | Lean Women |
---|---|---|
Arm/Group Description | Women with Body Mass Index (BMI) >30 kg/m² | Women with Body Mass Index (BMI) <25 kg/m² |
Measure Participants | 14 | 15 |
Baseline Insulin sensitivity |
4.36
(2.32)
|
6.62
(3.69)
|
6 months Insulin sensitivity |
3.82
(3.12)
|
8.23
(3.30)
|
Title | Changes in Lipid Profile Compared Associated With OC Use Among (1) Obese Women and (2) Lean Women |
---|---|
Description | 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 |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Obese Women | Lean Women |
---|---|---|
Arm/Group Description | Women with Body Mass Index (BMI) >30 kg/m² | Women with Body Mass Index (BMI) <25 kg/m² |
Measure Participants | 14 | 15 |
Baseline LDL |
95
(18.4)
|
84
(24.3)
|
6 months LDL |
113
(25.2)
|
104
(26.1)
|
Baseline Triglycerides |
72
(50.3)
|
72
(52.0)
|
6 months Triglycerides |
83
(51.1)
|
106
(52.9)
|
Baseline HDL |
51
(10.7)
|
53
(10.0)
|
6 months HDL |
58
(12.4)
|
61
(12.8)
|
Title | Inflammatory Marker Changes, High Sensitive C-reactive Protein (Hs-CRP) and Adiponectin, Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women |
---|---|
Description | Inflammatory markers are assessed through blood analysis for C-reactive protein (hs-CRP) and adiponectin. |
Time Frame | Baseline and 6 months |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Obese Women | Lean Women |
---|---|---|
Arm/Group Description | Women with Body Mass Index (BMI) >30 kg/m² | Women with Body Mass Index (BMI) <25 kg/m² |
Measure Participants | 14 | 15 |
Baseline Hs-CRP |
4908.76
(5215.07)
|
2050.77
(4748.75)
|
6 months Hs-CRP |
6207.76
(4566.8)
|
2266.02
(3443.3)
|
Baseline Adiponectin |
17568.86
(5680.86)
|
21976.53
(8322.05)
|
6 months Adiponectin |
18408.43
(4934.39)
|
22221.36
(11160.97)
|
Title | Changes in Estrogen Metabolites (Plasma) Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women |
---|---|
Description | |
Time Frame | Baseline and 6 months |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Obese Women | Lean Women |
---|---|---|
Arm/Group Description | Women with Body Mass Index (BMI) >30 kg/m². Note: Only two arms were analyzed for the results. Women who were candidates for taking oral contraceptive pills and had the metabolic syndrome could not be recruited. That is because some inclusion criteria for metabolic syndrome are actually exclusion criteria for safe oral contraceptive use. | Women with Body Mass Index)BMI <25 kg/m² |
Measure Participants | 14 | 15 |
Baseline 16aE1 |
314.76
(179.73)
|
317.47
(159.8)
|
6 months 16aE1 |
421.6
(286.57)
|
383.39
(452.98)
|
Baseline 2ME1 |
25.92
(11.03)
|
32.39
(9.3)
|
6 months 2ME1 |
52.84
(54.29)
|
45.58
(23.83)
|
Baseline 4ME1 |
5.26
(3.58)
|
4.45
(3.13)
|
6 months 4ME1 |
6.1
(3.29)
|
7.42
(8.55)
|
Baseline 2ME2 |
1.48
(1.06)
|
0.91
(0.82)
|
6 months 2ME2 |
1.5
(1.11)
|
1.74
(2.15)
|
Baseline E1 |
217.23
(170.88)
|
245.99
(128.41)
|
6 months E1 |
315.03
(339.15)
|
227.4
(271.6)
|
Baseline 4ME2 |
0.73
(0.55)
|
0.59
(0.54)
|
6 months 4ME2 |
0.89
(0.79)
|
1.14
(1.41)
|
Baseline E2 |
34.11
(15.61)
|
36.796
(17.28)
|
6 months E2 |
74.73
(117.52)
|
47.32
(61.82)
|
Baseline 2OHE1 |
101.07
(126.04)
|
85.62
(48.08)
|
6 months 2OHE1 |
135.95
(220.24)
|
57.96
(70.02)
|
Baseline 2OHE2 |
9.81
(5.85)
|
8.01
(3.62)
|
6 months 2OHE2 |
11.55
(21.74)
|
6.05
(4.69)
|
Baseline 4OHE1 |
33.78
(16.52)
|
33.98
(25.86)
|
6 months 4OHE1 |
27.29
(25.65)
|
29.12
(15.08)
|
Baseline Total plasma |
1068
(472.78)
|
1022.16
(295.61)
|
6 months Total plasma |
1342.21
(1166.36)
|
1007.89
(977.81)
|
Title | Changes in Waist-to-Hip Ratio Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women |
---|---|
Description | Waist-to-hip ratio is assessed through calculated ratio of waist and hip circumference. |
Time Frame | Baseline and 6 months |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Obese Women | Lean Women |
---|---|---|
Arm/Group Description | Women with Body Mass Index (BMI) >30 kg/m² | Women with Body Mass Index (BMI) <25 kg/m² |
Measure Participants | 14 | 15 |
Baseline Waist-Hip Ratio |
0.79
(0.059)
|
0.73
(0.027)
|
6 months Waist-Hip Ratio |
0.81
(0.057)
|
0.73
(0.057)
|
Title | Inflammatory Marker Changes (MCP-1) Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women |
---|---|
Description | Inflammatory marker is assessed through blood analysis for Monocyte chemotactic protein-1 (MCP-1). |
Time Frame | Baseline and 6 months |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Obese Women | Lean Women |
---|---|---|
Arm/Group Description | Women with BMI >30 kg/m² | Women with BMI >25 kg/m² |
Measure Participants | 14 | 15 |
Baseline MCP-1 |
209.56
(125.92)
|
156.14
(36.29)
|
6 months MCP-1 |
219.86
(159.85)
|
206.66
(76.15)
|
Title | Changes in Blood Pressure Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women |
---|---|
Description | |
Time Frame | Baseline and 6 months |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Obese Women | Lean Women |
---|---|---|
Arm/Group Description | Women with Body Mass Index (BMI) >30 kg/m². Note: Only two arms were analyzed for the results. Women who were candidates for taking oral contraceptive pills and had the metabolic syndrome could not be recruited. That is because some inclusion criteria for metabolic syndrome are actually exclusion criteria for safe oral contraceptive use. | Women with Body Mass Index)BMI <25 kg/m² |
Measure Participants | 14 | 15 |
Baseline Systolic Blood Pressure |
121.1
(3.2)
|
105.7
(8.6)
|
6 months Systolic Blood Pressure |
123.5
(11.7)
|
106.5
(12.2)
|
Baseline Diastolic Blood Pressure |
74.4
(1.8)
|
68.0
(3.7)
|
6 months Diastolic Blood Pressure |
73.4
(6.6)
|
66.5
(6.8)
|
Title | Changes in Body Mass Index (BMI) Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women |
---|---|
Description | Body Mass Index is a calculation of height and weight: kg/m² |
Time Frame | Baseline and 6 months |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Obese Women | Lean Women |
---|---|---|
Arm/Group Description | Women with Body Mass Index (BMI) >30 kg/m² | Women with Body Mass Index (BMI) <25 kg/m² |
Measure Participants | 14 | 15 |
Baseline BMI |
37.1
(6.7)
|
21.3
(1.8)
|
6 months BMI |
37.6
(4.7)
|
21.4
(4.9)
|
Title | Changes in Waist Circumference Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women |
---|---|
Description | |
Time Frame | Baseline and 6 months |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Obese Women | Lean Women |
---|---|---|
Arm/Group Description | Women with Body Mass Index (BMI) >30 kg/m² | Women with Body Mass Index (BMI) <25 kg/m² |
Measure Participants | 14 | 15 |
Baseline Waist circumference |
100.0
(14.4)
|
70.2
(4.1)
|
6 months Waist circumference |
101.0
(10.5)
|
70.9
(10.7)
|
Title | Inflammatory Marker Changes, Soluble Vascular Cell Adhesion Molecule (sVCAM) and Soluble Intercellular Adhesion Molecule (sICAM), Associated With OC Use Compared Among (1) Obese Women and (2) Lean Women |
---|---|
Description | These inflammatory markers are assessed through blood analysis of Soluble Vascular Cell Adhesion Molecule (sVCAM) and soluble intercellular adhesion molecule (sICAM). |
Time Frame | Baseline and 6 months |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Obese Women | Lean Women |
---|---|---|
Arm/Group Description | Women with Body Mass Index (BMI) >30 kg/m² | Women with Body Mass Index (BMI) <25 kg/m² |
Measure Participants | 14 | 15 |
Baseline sVCAM |
905
(190.63)
|
1139.6
(159.57)
|
6 months sVCAM |
880.14
(180.08)
|
1003.29
(256.62)
|
Baseline sICAM |
163.34
(50.44)
|
182.11
(91.17)
|
6 months sICAM |
163.2
(27.71)
|
160.21
(74.88)
|
Adverse Events
Time Frame | ||||
---|---|---|---|---|
Adverse Event Reporting Description | ||||
Arm/Group Title | Obese Women | Lean Women | ||
Arm/Group Description | Women with Body Mass Index (BMI) >30 kg/m². Note: Only two arms were analyzed for the results. Women who were candidates for taking oral contraceptive pills and had the metabolic syndrome could not be recruited. That is because some inclusion criteria for metabolic syndrome are actually exclusion criteria for safe oral contraceptive use. | Women with Body Mass Index)BMI <25 kg/m² | ||
All Cause Mortality |
||||
Obese Women | Lean Women | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | / (NaN) | / (NaN) | ||
Serious Adverse Events |
||||
Obese Women | Lean Women | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 1/21 (4.8%) | 0/15 (0%) | ||
Gastrointestinal disorders | ||||
Gallstones removal | 1/21 (4.8%) | 0/15 (0%) | ||
Other (Not Including Serious) Adverse Events |
||||
Obese Women | Lean Women | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 2/21 (9.5%) | 2/15 (13.3%) | ||
Injury, poisoning and procedural complications | ||||
Tiredness | 0/21 (0%) | 1/15 (6.7%) | ||
Pain with venipuncture | 0/21 (0%) | 1/15 (6.7%) | ||
Phlebitis due to catheter insertion | 1/21 (4.8%) | 0/15 (0%) | ||
Dizziness due to Ortho Tricyclen | 1/21 (4.8%) | 0/15 (0%) |
Limitations/Caveats
More Information
Certain Agreements
All Principal Investigators ARE employed by the organization sponsoring the study.
There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
Results Point of Contact
Name/Title | Kai Cheang, Principal Investigator |
---|---|
Organization | Virginia Commonwealth University |
Phone | 804-828-9698 |
kicheang@vcu.edu |
- HM4060