Not provided
| ID | Type | Description | Link |
|---|---|---|---|
| NIH R03 HD053611 01 |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Class |
|---|---|
| National Institutes of Health (NIH) | NIH |
| Oregon Clinical and Translational Research Institute | OTHER |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
The purpose of the blood spot validation portion of the study is to test if measuring female hormone levels in the blood is as accurate through a finger stick, as it is by a blood draw from a vein. The purpose of the feasibility study is to evaluate ovulation occurrence in two populations of oral contraceptive users: heavier and lighter women.
The blood spot validation portion of the study tests the hypothesis that progesterone assays from self-collected daily blood spots are equivalent to serum samples, and that the values obtained can identify women that ovulate. After validating collection methods, enrollment will begin for the feasibility portion of the study looking at thin and heavy women on birth control pills. All women in this portion of the study will take a very-low dose birth control pill that is normally available through a doctor's office. During each month of the study, women will have their blood pressure and weight recorded, and have their blood drawn twice per week or use a finger stick kit daily at home to check for the natural hormones and brain chemicals that tells if an egg develops. During the last week of each menstrual cycle (period week), women will also have their blood drawn to measure the levels of hormone found in the birth control pill. Women will also need to report in a written diary that they have taken their birth control pill for the day.
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| I | Active Comparator | 10 normal weight women (BMI < 25 kg/m2) |
|
| II | Active Comparator | 10 obese women (BMI >30 kg/m2) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| ethinyl estradiol / levonorgestrel | Drug | Take one tablet daily of 20 mcg ethinyl estradiol/100 mcg levonorgestrel for 21 days plus 7 days of placebo tablets, repeat for two months total duration. |
| Measure | Description | Time Frame |
|---|---|---|
| Concentrations of circulating oral contraceptives dosed in a standard cyclic fashion in obese and normal BMI cohorts | Approximately one year |
Not provided
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Alison Edelman, MD, MPH | Oregon Health and Science University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Oregon Health & Science University | Portland | Oregon | 97239 | United States |
Not provided
| Label | URL |
|---|---|
| OHSU Women's Health Research Unit | View source |
Not provided
Not provided
| ID | Term |
|---|---|
| D001835 | Body Weight |
| ID | Term |
|---|---|
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
Not provided
Not provided
| ID | Term |
|---|---|
| D019304 | Ethinyl Estradiol-Norgestrel Combination |
| ID | Term |
|---|---|
| D004997 | Ethinyl Estradiol |
| D009651 | Norpregnatrienes |
| D009650 | Norpregnanes |
| D009654 | Norsteroids |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
|
| ethinyl estradiol / levonorgestrel | Drug | Take one tablet daily of 20 mcg ethinyl estradiol/100 mcg levonorgestrel for 21 days plus 7 days of placebo tablets, repeat for two months total duration. |
|
|
| D013256 |
| Steroids |
| D000072473 | Fused-Ring Compounds |
| D011083 | Polycyclic Compounds |
| D009644 | Norgestrel |
| D009652 | Norpregnenes |
| D042782 | Estrogenic Steroids, Alkylated |
| D045166 | Estradiol Congeners |
| D012739 | Gonadal Steroid Hormones |
| D042341 | Gonadal Hormones |
| D006728 | Hormones |
| D006730 | Hormones, Hormone Substitutes, and Hormone Antagonists |