Expired Study
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La Jolla, California 92093


Purpose:

In women with polycystic ovary syndrome (PCOS), the cardinal physiological abnormality is excessive ovarian androgen production marked by increased serum testosterone (T) and androstenedione (A) levels. Studies to determine the alteration in ovarian steroidogenesis that lead to abnormal production of ovarian androgens have revealed increased CYP17 gene expression with accentuated 17-hydroxylase activity leading to exaggerated 17-hydroxyprogesterone (17P) responses to luteinizing hormone (LH) stimulation. In contrast, T and A responses did not distinguish between PCOS and normal women, although these androgens were clearly greater in the former compared to the latter group. As a result, 17P responsiveness has been employed to determine the functional capacity of the ovary to produce androgens. The stimulatory agents that have been used included GnRH agonist, Lupron, at a dose of 10 microgram per kilogram, or hCG at a dose of 10,000 IU. The investigators propose to conduct a study that will determine the pattern of androgen responsiveness to 25ucg of hCG after 24 hours in adolescents with PCOS, those with oligomenorrhea, and in normal controls. This will allow for a comparison of these adolescents' ovarian functional capacity to produce androgens.


Study summary:

In women with polycystic ovary syndrome (PCOS), the cardinal physiological abnormality is excessive ovarian androgen production marked by increased serum testosterone (T) and androstenedione (A) levels. Studies to determine the alteration in ovarian steroidogenesis that lead to abnormal production of ovarian androgens have revealed increased CYP17 gene expression with accentuated 17-hydroxylase activity leading to exaggerated 17-hydroxyprogesterone (17P) responses to luteinizing hormone (LH) stimulation. In contrast, T and A responses did not distinguish between PCOS and normal women, although these androgens were clearly greater in the former compared to the latter group. As a result, 17P responsiveness has been employed to determine the functional capacity of the ovary to produce androgens. The stimulatory agents that have been used included GnRH agonist, Lupron, at a dose of 10 microgram per kilogram, or hCG at a dose of 10,000 IU.We propose to conduct a study that will determine the pattern of androgen responsiveness to 25ucg of hCG after 24 hours in adolescents with PCOS, those with oligomenorrhea, and in normal controls. This will allow for a comparison of these adolescents' ovarian functional capacity to produce androgens.


Criteria:

Inclusion Criteria: - Normal CBC (Hemoglobin must be at least 11mg/dl) - Normal renal and liver function tests - Normal vital signs including normal blood pressure Exclusion Criteria: - Pregnancy - On oral contraceptives - On insulin lowering drugs - On anti-androgens (i.e., spironolactone, flutamide, finasteride, etc) - On medications that will influence androgen metabolism or clearance - On medications that will inhibit the cytochrome P450 enzyme system (Cimetidine, ketoconazole, etc)


NCT ID:

NCT01154192


Primary Contact:

Principal Investigator
R. Jeffery Chang, M.D.
UCSD School of Medicine


Backup Contact:

N/A


Location Contact:

La Jolla, California 92093
United States



There is no listed contact information for this specific location.

Site Status: N/A


Data Source: ClinicalTrials.gov

Date Processed: August 31, 2019

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