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The purpose of the study is to evaluate the systemic bioavailability of DHEA and its metabolites and the pharmacokinetics of vaginal suppositories at four different DHEA concentration.
Humans, are unique among animal species in having adrenals that secrete large amounts of the inactive precursor steroids dehydroepiandrosterone (DHEA) and especially its sulfate DHEA-S. The marked reduction in the formation of DHEA-S by the adrenals during aging results in a dramatic fall in the formation of androgens and estrogens in peripheral target tissues, a situation that has been proposed to be associated with age-related diseases including skin atrophy, insulin resistance and obesity. Much attention has been given to the benefits of DHEA administered to postmenopausal women, especially on the bone, skin, vagina and well being after oral as well as percutaneous administration of the precursor steroid.
Therefore, this study proposes to evaluate the systemic bioavailability and the effectiveness of 1.3 mL vaginal suppositories of DHEA at 4 different concentrations (0.0%, 0.5%, 1.0% et 1.8%) following 1 week administration of vaginal suppositories in post-menopausal women with vaginal atrophy. This is a phase I, randomized, placebo-controlled, double-blind study.
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Bio-availability Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment
Clinique des traitements hormonaux CHUL Research Center
Active, not recruiting
Centre hospitalier universitaire de Québec
Published on BioPortfolio: 2014-08-27T03:40:23-0400
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The secretion of estrogens by the ovaries stops at menopause. Afterward, dehydroepiandrosterone (DHEA) becomes the only source of both estrogens and androgens during all the postmenopausal years. To m...
A major C19 steroid produced by the ADRENAL CORTEX. It is also produced in small quantities in the TESTIS and the OVARY. Dehydroepiandrosterone (DHEA) can be converted to TESTOSTERONE; ANDROSTENEDIONE; ESTRADIOL; and ESTRONE. Most of DHEA is sulfated (DEHYDROEPIANDROSTERONE SULFATE) before secretion.
The uptake of substances from the VAGINA via the vaginal epithelium/mucosa.
Collection of pooled secretions of the posterior vaginal fornix for cytologic examination.
An incision of the posterior vaginal wall and a portion of the pudenda which enlarges the vaginal introitus to facilitate delivery and prevent lacerations.
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