ClinicalTrials.gg
CompletedNCT03088046Updated Mar 23, 2017

Circulating Androgen Levels Are Not Affected by the Administration of Vaginal Micronized Progesterone for Withdrawal Bleeding in Patients With Polycystic Ovarian Syndrome

An interventional study of Micronized Progesterone in Anovulation, Polycystic Ovary Syndrome and Hyperandrogenism, sponsored by Fundacion Dexeus. Completed. Open to female participants aged 18 Years to 35 Years. Per ClinicalTrials.gov, last updated 2017-03-23.

Sponsored by Fundacion Dexeus · Not applicable, Interventional, and Diagnostic

From the registry’s dates

  • Registered 3 years 1 month after the study started (first participant enrolled Feb 2014, registered Mar 2017).
Phase
Not applicable
Study type
Interventional
Enrollment
15
Allocation
Not applicable
Ages
18 Years to 35 Years
Sex
Female
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Study summary

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.

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Conditions studied

  • Anovulation
  • Polycystic Ovary Syndrome
  • Hyperandrogenism
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In context

Anovulation

75 studies on the registry are indexed under Anovulation; 7 are open to participants now.

This study's enrollment of 15 is below the median of 80 across 52 interventional studies indexed under Anovulation.

Browse Anovulation studies →

Lead sponsor

Fundacion Dexeus is the lead sponsor of 36 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 35 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

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

Exclusion Criteria:

  • non-classic congenital adrenal hyperplasia,
  • hyperprolactinemia
  • thyroid dysfunction
  • Oral pills taken at least 3 months before the study
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

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Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
15 participants (actual)

Study arms

  • Other
    Micronized Progesterone

    Administration of 200 mg of vaginal Micronized Progesterone (100 mg every 12 hours) for a 7-day course

    Drug: Micronized Progesterone

Interventions

  • 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).

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What researchers measure

Primary outcomes

  1. Change in Total testosterone (TT)

    Difference between first and second sample in Total testosterone

    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)

  2. Change in free testosterone (FT)

    Difference between first and second sample in free testosterone

    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)

  3. Change in sex hormone binding globulin (SHBG)

    Difference between first and second sample 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)

  4. Change in dehydroepiandrosterone sulfate (DHEAS)

    Difference between first and second sample 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)

  5. Change in androstenedione (A4)

    Difference between first and second sample 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)

  6. Change in 17-OH progesterone

    Difference between first and second sample 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)

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Study locations

No study locations are listed for this record.

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References and documents

Publications

  • Livadas S, Boutzios G, Economou F, Alexandraki K, Xyrafis X, Christou M, Zerva A, Karachalios A, Tantalaki E, Diamanti-Kandarakis E. The effect of oral micronized progesterone on hormonal and metabolic parameters in anovulatory patients with polycystic ovary syndrome. Fertil Steril. 2010 Jun;94(1):242-6. doi: 10.1016/j.fertnstert.2009.02.073. Epub 2009 May 5. PubMed 19409554 ↗

Related links

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 23, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03088046
Lead sponsor
Fundacion Dexeus
Responsible party
Carlos Dosouto Capel (Fellow in Reproductive Endocrinology, Fundacion Dexeus) — Principal investigator
First posted
Mar 23, 2017
Start date
Feb 2014
Primary completion
Feb 2015
Completion
Feb 2015
Last update
Mar 23, 2017

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2017. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Progesterone

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