VA111913 TS: First in Human Study
This is a first-in-human study of VA111913 TS, a new chemical entity being developed for the treatment of dysmenorrhea. This study is designed to investigate determine the safety, tolerability and pharmacokinetics of VA111913 TS after single and multiple doses in healthy non-pregnant female volunteers of child bearing age.
|Study Design:||Endpoint Classification: Safety Study
Primary Purpose: Treatment
|Official Title:||A First in Human Study Consisting of a Two-Part, Double-Blind, Placebo-Controlled, Escalating Single and Multiple Dose Study of VA111913 TS in Adult Non-Pregnant Women Volunteers With a Single Dose, Open, Fed vs. Fasting Crossover Phase|
|Study Start Date:||September 2008|
|Study Completion Date:||March 2009|
|Primary Completion Date:||March 2009 (Final data collection date for primary outcome measure)|
VA111913 TS is a selective V1a-receptor antagonist. The hypothesised mechanism of action of a V1a receptor antagonist in dysmenorrhea has been described in literature. Contractions of the uterine muscle are required for normal menstruation. Women with dysmenorrhea have increased uterine myometrial tone and contractions and decreased blood flow to the uterus. These abnormalities have been shown to lead to the pain experienced in dysmenorrhea. Thus, if a drug is able to reduce the hyperreactivity of the uterus to physiological levels then the pain experienced in dysmenorrhea may be controlled. In humans, vasopressin, via the V1a receptor, is able to potently induce contractions in both uterine smooth muscle and uterine blood vessels. Thus, a V1a receptor antagonist will potentially inhibit these contractions and in turn reduce the pain experienced in dysmenorrhea.