Metabolic Study of Women With Polycystic Ovary Syndrome & Sleep Apnea

Status Active, not recruiting

Clinical Trial Summary

The purpose of this study is to look at the metabolic (use of energy) and hormonal features of sleep problems in women with polycystic ovary syndrome (PCOS).

Clinical Trial Description

The prevalence of obesity and chronic sleep loss are at record levels among Americans and evidence continues to emerge to support a causal link between the two conditions. Metabolic abnormalities related to sleep disruption are particularly evident in individuals with obstructive sleep apnea (OSA), a disorder traditionally associated with male gender. While more prevalent in men, OSA is underrecognized in women in part because its clinical and polysomnographic features differ from those of men. Women with polycystic ovary syndrome (PCOS) are particularly susceptible to OSA with at least a 5-fold higher risk for its development compared to obese women without PCOS. This study will enroll obese women with PCOS, with and without OSA. Those with OSA will be randomized to receive CPAP or to receive depot leuprolide to suppress ovarian steroid output over 12 weeks, reassessed at 6 weeks, and then randomized (double-blind, placebo controlled) to 6 weeks of either micronized estrogen + placebo or micronized progestin + placebo. The independent effects of androgen, estrogen, and progesterone on OSA and metabolic function will be assessed. In addition, primary human adipocytes will be prepared from fat biopsies obtained from subjects. Insulin sensitivity will be determined by phospho-specific immunoblotting in conjunction with glucose uptake and anti-lipolysis assays. In parallel, adipocytes from these subjects will be cultured for 1-5 days prior to metabolic assays to ascertain if removal of from circulating factors will improve insulin signaling, or if insulin resistance persists in vitro. Finally, there will be an interface with the Metabolomics Laboratory at Duke University (C. Newgard, Lab Director), and metabolomics assessment will be done on blood and urine samples. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00696111
Study type	Interventional
Source	University of Chicago
Contact
Status	Active, not recruiting
Phase	N/A
Start date	December 2007
Completion date	June 2023

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See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Metabolic Study of Women With Polycystic Ovary Syndrome and Sleep Apnea

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms