- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00989781
Mechanisms of Increased Androgen Production Among Women With Polycystic Ovary Syndrome
Study Overview
Status
Conditions
Detailed Description
The first part of this study looks specifically at the structure of the ovaries, which are the female sex glands where both androgens and estrogens (female hormones) are made. It involves imaging your ovaries with a technology called 3-D Ultrasound. We are interested in recording the number, size and arrangement of the follicles in your ovaries.
The second part of the study looks at how the ovary produces male hormones, or androgens, with and without follicle stimulating hormone (FSH) stimulation. Hormones are substances made by a gland in one part of the body which regulate another part. FSH is a hormone naturally produced by the pituitary gland located in the brain and it helps the ovary produce estrogens, or female hormones. LH is a hormone also naturally produced by the pituitary gland and it has the ability to stimulate the ovary to make androgens. We are interested to see how much androgen your ovaries will produce in response to LH with and without FSH. To accomplish this, you will be given FSH as well as hCG, a drug that acts like LH to stimulate the ovary; FSH and hCG are approved by the Food and Drug Administration (FDA) for this investigational, off-label use.
The third part of the study looks at how much the adrenal glands contribute to the increase male hormone levels seen in PCOS. ACTH is a hormone naturally produced by the pituitary gland located in the brain and it stimulates the adrenals to make hormones. The adrenal glands are above the kidneys. They are chiefly responsible for helping the body adjust to stressful situations and work by producing cortisol and adrenaline. The adrenal glands also produce androgens, or male hormones. Previous studies have shown that some women with PCOS produce more male hormones from their adrenals. We are interested to see how much androgen your adrenal glands produce. To accomplish this, you will first be given dexamethasone, a stress steroid, to temporarily suppress your adrenal glands. You will then be given ACTH intravenously over the course of 7 hours to stimulate your adrenal glands.
The fourth part of the study is for PCOS women only and looks at how much the role of insulin contributes to the increase male hormone levels. Insulin is a hormone naturally produced by the pancreas that stimulates all of the cells in your body to take up glucose, or sugar, from the blood. Previous studies have shown that PCOS women who are more resistant to insulin, or whose cells do not take up glucose from the blood in response to insulin, make more male hormones. We are interested to see how much androgen your ovaries produce in response to LH before and after we temporarily decrease the amount of insulin in your blood. To accomplish this, you will again be given hCG, a drug that acts like LH to stimulate the ovary, with and without diazoxide, a drug that decreases the amount of insulin in your bloodstream. These tests will all be done after you are on a diet that limits how much sugar you eat. To test how much insulin you make, you will also be given Oral Glucose Tolerance Tests before and after diazoxide. This test is done by drinking a sugary liquid and testing your blood over 3 hours.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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California
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San Diego, California, United States, 92103
- UCSD Medical Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
A group of 40 women with PCOS and 20 normal women ages 18-37 will be studied.
- Subjects will be determined to have PCOS based on clinical history of irregular menses and clinical or laboratory evidence of hyperandrogenism and polycystic ovaries on ultrasound.
- Subjects should not have been on any hormonal therapy or metformin for at least 2 months prior to study start.
- Subjects will be determined to be normal controls if they have a clinical history of regular periods
Exclusion Criteria:
- Women with hemoglobin less than 11 gm/dl at screening evaluation
- Women with untreated thyroid abnormalities
- Pregnant women or women who are nursing
- Women with BMI > 37
- Women with known sensitivity to the agents being used
- Women with prosthetic devices (i.e.,ear)/ shunts (ventricular), Hearing aids, Metal plate/pins/screws/wires
- Women with diabetes, or renal, liver, or heart disease.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Screening
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: PCOS women
Each subject will undergo pelvic 3D ultrasound followed by an iv recombinant human chorionic gonadotropin (r-hCG) stimulation test. One month later the r-hCG test will be repeated 24 hr after an injection of recombinant human follicle stimulating hormone (FSH). After 1 month, subjects will receive a 7 hr dose-response infusion of adrenocorticotropin (ACTH) with blood sampling. Dexamethasone will be given prior to ACTH. After 1 month, subject will receive r-hCG as described above followed the next day by an oral glucose tolerance test (OGTT). Subsequently, subjects will take Diazoxide 3 times a day for 2 weeks. At weekly intervals (2 weeks), the r-hCG stimulation test will be repeated followed the next day by an OGTT as described above. |
One time pelvic ultrasound
Recombinant human chorionic gonadotropin will be given iv and blood samples obtained before and 24 hr afterwards
Other Names:
Recombinant human follicle stimulating hormone will be given iv and blood samples obtained before and 24 hr later.
Other Names:
Each subject will receive a 7 hr dose-response infusion of Adrenocorticotropin.
Other Names:
Dexamethasone will be given prior to ACTH infusion test.
Other Names:
Each subject will undergo 3 oral glcuose tolerance tests.
Other Names:
|
Experimental: Normal women
Each subject will undergo pelvic 3D ultrasound followed by an iv recombinant human chorionic gonadotropin (r-hCG) stimulation test. One month later the r-hCG test will be repeated 24 hr after an injection of recombinant human follicle stimulating hormone (FSH). After 1 month, subjects will receive a 7 hr dose-response infusion of adrenocorticotropin (ACTH) with blood sampling. Dexamethasone will be given prior to ACTH. After 1 month, subject will receive r-hCG as described above followed the next day by an oral glucose tolerance test (OGTT). Subsequently, subjects will take Diazoxide 3 times a day for 2 weeks. At weekly intervals (2 weeks), the r-hCG stimulation test will be repeated followed the next day by an OGTT as described above. |
One time pelvic ultrasound
Recombinant human chorionic gonadotropin will be given iv and blood samples obtained before and 24 hr afterwards
Other Names:
Recombinant human follicle stimulating hormone will be given iv and blood samples obtained before and 24 hr later.
Other Names:
Each subject will receive a 7 hr dose-response infusion of Adrenocorticotropin.
Other Names:
Dexamethasone will be given prior to ACTH infusion test.
Other Names:
Each subject will undergo 3 oral glcuose tolerance tests.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
17-hydroxyprogesterone Responses to hCG in PCOS Women and Normal Controls
Time Frame: Baseline and 24 hours after hCG
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Change from baseline in 17-hydroxyprogesterone at 24 hours after hCG injection
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Baseline and 24 hours after hCG
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Adrenal 17-hydroxyprogesterone Response to ACTH in PCOS Women and Normal Controls
Time Frame: Baseline and 1, 2, 3, 4, 5, and 6 hours after ACTH
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17-hydroxyprogesterone response to ACTH infusion in women with PCOS and normal women.
Response is reported as a single value generated by summing the data at end time frame.
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Baseline and 1, 2, 3, 4, 5, and 6 hours after ACTH
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17 Hydroxyprogesterone Response to hCG Injection After Lowered Insulin Levels.
Time Frame: Baseline and 24 after hCG
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17 hydroxyprogesterone levels
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Baseline and 24 after hCG
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Anti-Mullerian Hormone (AMH)
Time Frame: Baseline
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Baseline
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Follicle Count on 3-D Ultrasound in PCOS Women and Normal Controls
Time Frame: baseline
|
3-D ultrasound was not assessed; instead 2-D ultrasound was performed
|
baseline
|
Collaborators and Investigators
Investigators
- Principal Investigator: R. Jeffrey Chang, M.D., Professor
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Pathologic Processes
- Neoplasms
- Endocrine System Diseases
- Disease
- Ovarian Cysts
- Cysts
- Ovarian Diseases
- Adnexal Diseases
- Gonadal Disorders
- Polycystic Ovary Syndrome
- Syndrome
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Autonomic Agents
- Peripheral Nervous System Agents
- Anti-Inflammatory Agents
- Antineoplastic Agents
- Antiemetics
- Gastrointestinal Agents
- Glucocorticoids
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Antineoplastic Agents, Hormonal
- Reproductive Control Agents
- Dexamethasone
- Follicle Stimulating Hormone
- Hormones
- Chorionic Gonadotropin
- Cosyntropin
- Adrenocorticotropic Hormone
- Melanocyte-Stimulating Hormones
- beta-Endorphin
Other Study ID Numbers
- 090560
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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