Last updated on May 2016

Determining How Quickly Progesterone Slows LH Pulse Frequency

Are you eligible to participate in this study?

You may be eligible for this study if you meet the following criteria:

  • Conditions: Pcos | normal
  • Age: Between 18 - 35 Years
  • Gender: Female
  • Other:
    Subjects will be healthy women in two groups: (1) women with regular menstrual cycles
    and no evidence of hyperandrogenism, and (2) women with PCOS (defined as
    clinical/biochemical evidence of hyperandrogenism plus oligomenorrhea, but with no
    evidence for other endocrinopathies).
    Subjects will be 18-35 years old.
    Subjects will be willing to strictly avoid pregnancy (using non-hormonal methods)
    during the time of study and must be willing and able to provide informed consent.

You may not be eligible for this study if the following are true:

  • We will exclude women with a history of any disorders that may potentially be
    complicated by hormonal treatment, such as DVT and breast, ovarian, or endometrial
    We will exclude women with any other cancer diagnosis and/or treatment (with the
    exception of basal cell or squamous skin carcinoma) unless they have remained
    clinically disease free (based on appropriate surveillance) for five years.
    Women with anemia (hematocrit < 36% and/or a hemoglobin level <12 g/dl) will be
    treated with iron for a maximum of 2 sequential months before the 1st admission
    and/or before the 2nd admission. If they remain anemic after 2 sequential months of
    ferrous gluconate (325 mg bid), they will then be excluded from further participation
    in the study.
    Women with a history of any disorders that may potentially be complicated by
    long-term iron supplementation, such as hemochromatosis and polycythemia vera, will
    be excluded.
    Women with a significant history of cardiac or pulmonary dysfunction (e.g., known or
    uspected congestive heart failure; known or suspected coronary atherosclerosis;
    asthma requiring systemic intermittent corticosteroids; etc.) will be excluded.
    Women with liver enzymes, alkaline phosphatase, or bilirubin > 1.5 times upper limit
    of normal (confirmed on repeat) will be excluded, with the exception that mild
    bilirubin elevations will be accepted in the setting of known Gilbert's syndrome.
    Abnormal sodium or potassium concentrations (confirmed on repeat); bicarbonate
    concentrations <20 or >30 (confirmed on repeat)
    Women with abnormal renal function (i.e., serum creatinine > 1.4) will be excluded
    (confirmed on repeat)
    Pregnant and breast-feeding women will be excluded.
    A history of allergy to progesterone or estradiol will constitute grounds for
    Women with a BMI greater or equal to 40 kg/m2.
    A total testosterone > 150 ng/dl in women with PCOS (which suggests the possibility
    of a virilizing neoplasm) (confirmed on repeat)
    Elevated DHEAS (mild elevations may be seen in PCOS, and elevations < 1.5 times the
    upper limit of normal will be accepted in PCOS) (confirmed on repeat)
    Follicular 17-hydroxyprogesterone > 300 ng/dl, which suggests the possibility of
    congenital adrenal hyperplasia (if elevated during the luteal phase and there is a
    concern about the possibility of congenital adrenal hyperplasia, the
    17-hydroxyprogesterone may be collected during the follicular phase, or >60 if
    oligomenorrheic). NOTE: If a 17-hydroxyprogesterone > 300 ng/dl is confirmed on
    repeat testing, an ACTH stimulated 17-hydroxyprogesterone < 1000 ng/dl will be
    required for study participation.
    A previous diagnosis of diabetes, a fasting glucose ≥ 126 mg/dl, or a hemoglobin A1c
    > 6.5%
    Abnormal TSH (subjects with adequately treated hypothyroidism, reflected by normal
    TSH values, will not be excluded; or, for a new diagnosis of hypothyroidism, further
    tudy will at the least be delayed pending appropriate treatment) (confirmed on
    Abnormal prolactin (mild elevations may be seen in PCOS, and elevations < 1.5 times
    the upper limit of normal will be accepted in this group) (confirmed on repeat)
    Evidence of Cushing's syndrome by history or physical exam
    Due to the amount of blood being drawn in the study, subjects with body weight < 110
    lbs. will be excluded from the study

Recruitment Status: Open

Brief Description Eligibility Contact Research Team

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