Efficacy of Dexamethasone in Polycystic Ovary Syndrome Related Infertility

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DESCRIPTION (provided by applicant): This application is written in response to RFA-HD-13-016 to participate as a Clinical Site in an ongoing multicenter cooperative program designed to conduct clinical studies investigating problems in reproductive medicine. The application directly addresses the mission of the Reproductive Sciences Branch to ensure the birth of healthy, wanted babies through studies on human fertility and Infertility. The long term objectives of the proposed project are to improve live birth rates in infertile women with polycystic ovary syndrome (PCOS), and to explore the role of chronic Inflammation In the pathophysiology of PCOS-related infertility and in the response to fertility therapy in such individuals. First line therapy with clomiphene citrate fails to result in successful pregnancy in up to one-half of PCOS patients. However, the addition of dexamethasone (DEX) to CC shows promise as a safe, effective, inexpensive intervention in this population. We thus propose the following specific alms: Specific Aim 1. To compare the live birth rate in women with PCOS treated with CC plus placebo to that in PCOS women treated with CC plus DEX; Specific Aim 2. To compare serum hormone levels and markers of inflammation in women with PCOS treated with CC and placebo to those in PCOS women treated with CC plus DEX; Specific Aim 3. To explore possible relationships between serum hormone levels and markers of inflammation or treatment-related changes in these parameters and ovulation and live born delivery rates. We will address these specific alms by conducting a double-blind, randomized trial of ovulation induction with CC plus DEX compared to CC plus placebo. Based on considerations described in the proposal we hypothesize that: 1) The live birth rate in women with PCOS treated with CC plus DEX will be 10% higher than the rate in women treated with CC plus placebo; 2) Serum levels of dehydroepiandrosterone sulfate (DHEAS) and markers of inflammation will be reduced significantly in subjects treated with CC plus DEX compared to women treated with CC plus placebo; 3) Lower levels of markers of inflammation in women treated with DEX will be associated with a higher likelihood of live born delivery.