Mechanisms of Increased Androgen Production Among Women With Polycystic Ovary Syndrome

May 1, 2018 updated by: Jeffrey Chang, MD, University of California, San Diego
Jeffrey Chang MD is conducting a research study to learn more about the increased male hormone levels, otherwise known as androgens, seen in women with polycystic ovary syndrome (PCOS). Women with PCOS have ovaries that are comprised of many cysts, or follicles. They also have irregular or absent menstrual periods and symptoms of increased male hormones, such as facial hair or acne. In each part of the study (except part 4 which is for PCOS women only) we will be comparing responses of PCOS women to normal controls

Study Overview

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

Interventional

Enrollment (Actual)

41

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • San Diego, California, United States, 92103
        • UCSD Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years to 35 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

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

This section provides details of the study plan, including how the study is designed and what the study is measuring.

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:
  • Ovidrel
  • r-hCG
Recombinant human follicle stimulating hormone will be given iv and blood samples obtained before and 24 hr later.
Other Names:
  • r-hFSH
  • Gonal-F
Each subject will receive a 7 hr dose-response infusion of Adrenocorticotropin.
Other Names:
  • ACTH
  • Cosyntropin
Dexamethasone will be given prior to ACTH infusion test.
Other Names:
  • corticosteroid
Each subject will undergo 3 oral glcuose tolerance tests.
Other Names:
  • sugar
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:
  • Ovidrel
  • r-hCG
Recombinant human follicle stimulating hormone will be given iv and blood samples obtained before and 24 hr later.
Other Names:
  • r-hFSH
  • Gonal-F
Each subject will receive a 7 hr dose-response infusion of Adrenocorticotropin.
Other Names:
  • ACTH
  • Cosyntropin
Dexamethasone will be given prior to ACTH infusion test.
Other Names:
  • corticosteroid
Each subject will undergo 3 oral glcuose tolerance tests.
Other Names:
  • sugar

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
Change from baseline in 17-hydroxyprogesterone at 24 hours after hCG injection
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
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.
Baseline and 1, 2, 3, 4, 5, and 6 hours after ACTH
17 Hydroxyprogesterone Response to hCG Injection After Lowered Insulin Levels.
Time Frame: Baseline and 24 after hCG
17 hydroxyprogesterone levels
Baseline and 24 after hCG
Anti-Mullerian Hormone (AMH)
Time Frame: Baseline
Baseline

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

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: R. Jeffrey Chang, M.D., Professor

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2009

Primary Completion (Actual)

September 1, 2013

Study Completion (Actual)

September 1, 2013

Study Registration Dates

First Submitted

October 5, 2009

First Submitted That Met QC Criteria

October 5, 2009

First Posted (Estimate)

October 6, 2009

Study Record Updates

Last Update Posted (Actual)

June 4, 2018

Last Update Submitted That Met QC Criteria

May 1, 2018

Last Verified

May 1, 2018

More Information

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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