PCOS Clinical Trial
— CRM001Official title:
Determining the Rapidity With Which Exogenous P Suppresses Daytime LH (GnRH) Pulse Frequency in Women During the Follicular Phase of the Menstrual Cycle
Verified date | October 2020 |
Source | University of Virginia |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The rapidity with which progesterone (P) suppresses daytime lutenizing hormone (LH) (and by inference gonadotropin releasing hormone (GnRH)) pulse frequency is unknown. We propose to assess this further using a randomized, cross-over, placebo-controlled study. Ovulatory women will begin E2 patches on day 4-8 of the cycle, while women with PCOS will begin E2 patches either on day 4-8 of the cycle or at least 8 weeks post-menses. After 3 d of E2 administration, women will undergo a 24-h sampling study in the GCRC. Beginning at 2000 h, blood for LH, FSH, E2, P, and T will be obtained over a 24-h period. After 10 h of sampling, either oral micronized P (100 mg p.o.) suspension or placebo suspension will be administered (according to randomization). At the completion of sampling, E2 patches will be discontinued. During a subsequent menstrual cycle (or after at least 3 weeks in oligomenorrheic PCOS), subjects will undergo another GCRC study identical to the first (including pretreatment with E2) except that oral P will be exchanged for placebo or vice versa in accordance with the crossover design. We will assess the acute effects of progesterone on LH frequency, with secondary endpoints being mean LH, LH pulse amplitude, and mean follicle-stimulating hormone (FSH). We propose two primary hypotheses: (1) administration of P (at 0600 h) to normally cycling adult women during the follicular phase will result in a demonstrable suppression of daytime LH (and by inference GnRH) pulse frequency within 12 hours; (2) administration of P (at 0600 h) to women with PCOS will result in less suppression of daytime LH pulse frequency than in ovulatory women without PCOS. A secondary hypothesis is that augmentation of LH amplitude after P administration will be less in PCOS compared to normal controls.
Status | Completed |
Enrollment | 87 |
Est. completion date | January 18, 2020 |
Est. primary completion date | January 18, 2020 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Female |
Age group | 18 Years to 35 Years |
Eligibility |
Inclusion Criteria: - 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. Exclusion Criteria: - 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 cancer. - 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 suspected 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 exclusion. - Women with a BMI greater or equal to 40 kg/m2. - Virilization - 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 study will at the least be delayed pending appropriate treatment) (confirmed on repeat) - 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 |
Country | Name | City | State |
---|---|---|---|
United States | University of Virginia | Charlottesville | Virginia |
Lead Sponsor | Collaborator |
---|---|
University of Virginia | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | The primary endpoint is the change in the number of LH pulses (over 10 h) attributable to Progesterone. | 10 hours before and after administration of micronized progesterone and placebo | ||
Secondary | acute effects of P on mean LH | 10 hours before and after administration of micronized progesterone and placebo | ||
Secondary | acute effects of P on mean LH pulse amplitude | 10 hours before and after administration of micronized progesterone and placebo | ||
Secondary | acute effects of P on mean FSH | 10 hours before and after administration of micronized progesterone and placebo |
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