40
Participants
Start Date
February 1, 2018
Primary Completion Date
August 23, 2019
Study Completion Date
August 23, 2019
Estradiol vaginal ring
Estradiol 2mg vaginal ring
Placebo vaginal ring
Silicone vaginal ring without any active estradiol
Women's Health Research Unit at Oregon Health and Science University, Portland
Oregon Health and Science University
OTHER