- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03088046
Circulating Androgen Levels Are Not Affected by the Administration of Vaginal Micronized Progesterone for Withdrawal Bleeding in Patients With Polycystic Ovarian Syndrome
Hormonal evaluation of women who are suspected of having Polycystic ovary syndrome (PCOS) involves the measurement of basal levels of androgens and 17-hydroxyprogesterone (17-OHP), which are generally used to establish the presence of hyperandrogenemia. In general, these levels are obtained during the follicular phase to maintain sampling uniformity and avoid spurious increases due to corpus luteum function. However, because most hyperandrogenic patients are oligo/amenorrheic, it is frequently necessary to administer a progestogen to induce withdrawal bleeding and properly time the blood sampling.
Several medications have been described to properly induce withdrawal bleeding , with medroxyprogesterone acetate (MPA) being the most widely use. However, synthetic compounds as MPA do not replicate precisely the constellation of biologic activities of the parent hormone and results in a temporary, albeit clinically relevant, suppression in ovarian function and circulating androgen levels , in addition of several adverse side effects .
In this study, it is hypothesized that the administration of natural progesterone vaginally, which will avoid hepatic first pass, may result in significantly less hormonal suppression.
The authors test this hypothesis by prospectively determining the effect of vaginal micronized progesterone (OMP), administered for the induction of withdrawal bleeding, on the circulating androgen and 17-OHP levels in women with PCOS.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Chronic ovulatory dysfunction, defined as intermenstrual intervals of >45 days or a total of <8 menstrual cycles per year
- Polycystic ovaries, defined as at least one ovary with >12 follicles between 2 and 9 mm or an ovarian volume >10 mL
- Clinical hyperandrogenism, defined by a Ferriman Gallwey score >8
Exclusion Criteria:
- non-classic congenital adrenal hyperplasia,
- hyperprolactinemia
- thyroid dysfunction
- Oral contraceptives pills taken at least 3 months before the study
Study Plan
How is the study designed?
Design Details
- Primary Purpose: DIAGNOSTIC
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
OTHER: Micronized Progesterone
Administration of 200 mg of vaginal Micronized Progesterone (100 mg every 12 hours) for a 7-day course
|
Anovulatory women with Polycystic ovary syndrome and clinical hyperandrogenism attended in our Hospital will participate in the study. A patient information sheet will be provided and written consent will be obtained. Patients who give written consent will participate in the trial. All patient information will be confidential and only be available to researches involved in the study. Blood samples will be collected at baseline (Sample #1) and between the 3rd and the 5th day of withdrawal after 7 days of 100mg vaginal MP every 12 hours of administration(Sample#2). |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Total testosterone (TT)
Time Frame: Blood samples will be collected at baseline (Sample #1) , and between the 3rd ad the 5th day of withdrawal after the treatment (sample #2)
|
Difference between first and second sample in Total testosterone
|
Blood samples will be collected at baseline (Sample #1) , and between the 3rd ad the 5th day of withdrawal after the treatment (sample #2)
|
Change in free testosterone (FT)
Time Frame: Blood samples will be collected at baseline (Sample #1) , and between the 3rd ad the 5th day of withdrawal after the treatment (sample #2)
|
Difference between first and second sample in free testosterone
|
Blood samples will be collected at baseline (Sample #1) , and between the 3rd ad the 5th day of withdrawal after the treatment (sample #2)
|
Change in sex hormone binding globulin (SHBG)
Time Frame: Blood samples will be collected at baseline (Sample #1) , and between the 3rd ad the 5th day of withdrawal after the treatment (sample #2)
|
Difference between first and second sample in sex hormone binding globulin (SHBG)
|
Blood samples will be collected at baseline (Sample #1) , and between the 3rd ad the 5th day of withdrawal after the treatment (sample #2)
|
Change in dehydroepiandrosterone sulfate (DHEAS)
Time Frame: Blood samples will be collected at baseline (Sample #1) , and between the 3rd ad the 5th day of withdrawal after the treatment (sample #2)
|
Difference between first and second sample in dehydroepiandrosterone sulfate (DHEAS)
|
Blood samples will be collected at baseline (Sample #1) , and between the 3rd ad the 5th day of withdrawal after the treatment (sample #2)
|
Change in androstenedione (A4)
Time Frame: BBlood samples will be collected at baseline (Sample #1) , and between the 3rd ad the 5th day of withdrawal after the treatment (sample #2)
|
Difference between first and second sample in androstenedione (A4)
|
BBlood samples will be collected at baseline (Sample #1) , and between the 3rd ad the 5th day of withdrawal after the treatment (sample #2)
|
Change in 17-OH progesterone
Time Frame: Blood samples will be collected at baseline (Sample #1) , and between the 3rd ad the 5th day of withdrawal after the treatment (sample #2)
|
Difference between first and second sample in 17-OH progesterone
|
Blood samples will be collected at baseline (Sample #1) , and between the 3rd ad the 5th day of withdrawal after the treatment (sample #2)
|
Collaborators and Investigators
Sponsor
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Neoplasms
- Endocrine System Diseases
- Disease
- Ovarian Cysts
- Cysts
- Ovarian Diseases
- Adnexal Diseases
- Gonadal Disorders
- 46, XX Disorders of Sex Development
- Disorders of Sex Development
- Urogenital Abnormalities
- Adrenogenital Syndrome
- Congenital Abnormalities
- Polycystic Ovary Syndrome
- Hyperandrogenism
- Syndrome
- Anovulation
- Physiological Effects of Drugs
- Hormones
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Progestins
- Progesterone
Other Study ID Numbers
- SMD-2017-02
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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