Dehydroepiandrosterone (DHEA) Treatment in Women and Men Experiencing Hypoactive Sexual Desire Disorder: Modulation of Sexual Libido by Androgens and Neurosteroids

Hypoactive Sexual Desire Disorder (HSDD) is a very common syndrome in adult women and men, characterized by a severe deficiency in the desire for sexual activity, causing marked distress. There is some data that androgens such as testosterone have some beneficial effect in this condition. DHEA is a neurosteroid that is metabolized into testosterone and estrogen, both of assumed importance in the regulation of sexual libido. The direct involvement of DHEA in the regulation of sexual function is unknown, however, DHEA treatment improved libido in midlife-onset depressed subjects. In this study, we will treat women and men suffering from HSDD with DHEA. The study's first objective is to determine the effect of DHEA treatment on sexual libido in menopausal women and both young and mid-aged men. The secondary objective is to compare baseline measures of DHEA, androgens, and other neurosteroids, in individuals with HSDD to controls. Furthermore, we will investigate possible correlations between plasma and urine levels of several neurosteroids and change in measures of libido. Fifty women and men diagnosed with HSDD will be treated with either 100 mg of DHEA or placebo for 6 weeks, in a double-blind, placebo-controlled study. Outcome measures will include several 17-Ketosteroids, DHEAS and bioavailable testosterone. Psychological outcome measures will include sexual function, mood and well-being. Twenty controls without HSDD will also be recruited to determine and compare their baseline levels of neurosteroids.