Status: Recruiting
The REgistry of Very Early Estrogen and AnovuLation
The purpose of this study is to to build a registry of women with early estrogen loss due to Functional Hypothalamic Amenorrhea (FHA) to understand the prevalence, racial and ethnic diversity of this condition.
Participants needed: 100,000
Trial details
Age: 18-40Biological sex: FemaleType: ObservationalSponsor: Mayo ClinicUpdated: Nov 21, 2025Locations: 2Duration: 5 Years
Eligibility criteria
Estradiol: < 50pg/mL [+14]
Parturition/lactating in the last 6-12 months [+1]