TASK ORDER 19: 75N96021F00019: THE INVESTIGATION OF VITAMIN D AND MENSTRUAL CYCLES TRIAL (INVITED)POP: SEPTEMBER 1, 2021 TO AUGUST 31, 2022COST-REI

Social And Scientific Systems, Inc., Silver Spring MD

Investigators

Abstract

This work implements a Phase II, dose-ranging, randomized clinical trial (?The Investigation of Vitamin D and Menstrual Cycles Trial: A Phase II Randomized Trial?) investigating vitamin D?s influence on the hypothalamic-pituitary-ovarian axis. The study will carefully evaluate the hormonal, ovulatory, and overall menstrual cycle changes that occur with vitamin D treatment. Vitamin D supplementation may be a low-cost intervention that improves menstrual cycle function and fertility.