[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"functional-hypogonadotropic-hypogonadism\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:functional-hypogonadotropic-hypogonadism":28},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":13,"acronym":14,"eligibilityCriteria":15,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":18,"enrollmentInfo":19,"targetDuration":22,"studyType":23,"phases":4,"briefSummary":24,"conditions":25,"keywords":29,"overallStatus":33,"whyStopped":4,"lastUpdateSubmitDate":34,"lastUpdatePostDateStruct":35,"startDateStruct":38,"completionDateStruct":40,"leadSponsor":42,"locationsCount":45},"100560919","the-registry-of-very-early-estrogen-and-anovulation-100560919",false,"NCT06583408","The REgistry of Very Early Estrogen and AnovuLation","REVEAL","Inclusion Criteria:\n\n* 3 or more months of consecutive amenorrhea with a diagnosis of functional hypothalamic amenorrhea or screening hormones consistent with functional hypothalamic amenorrhea including but not limited to:\n\n  * Estradiol: \\\u003C 50pg\u002FmL\n  * LH: \\\u003C 10 IU\u002FmL\n  * FSH: \\\u003C 10 IU\n  * Testosterone: 2 - 45 ng\u002FdL\n  * Free Testosterone: 0.1 - 6.4 pg\u002FmL\n  * FT4: 0.93 - 1.70 ng\u002FdL\n  * Prolactin: \\\u003C 20 ng\u002FmL\n  * AMH: \\> 1 ng\u002FmL\n  * Urine or serum human chorionic gonadotropin: Negative\n* LH:FSH Ratio \\\u003C1\n* No signs of male-like hair growth on the upper lip, chin, chest, abdomen, buttocks, or back\n* Does not have a diagnosis for secondary amenorrhea, including prolactinoma, PCOS, premature ovarian insufficiency, pituitary surgery, infection, or infarction\n* Premenopausal status determined by WISE criteria\n* Able to give informed consent\n* Able to read English\n\nExclusion Criteria:\n\n* Parturition\u002Flactating in the last 6-12 months\n* Lack of consent","FEMALE","18 Years","40 Years",{"count":20,"type":21},100000,"ESTIMATED","5 Years","OBSERVATIONAL","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.",[26,27,28],"Hypothalamic Amenorrhea, Functional","Hypothalamic Amenorrhea","Functional Hypogonadotropic Hypogonadism",[30,31,32],"Anovulation","Estrogen Loss","Hypoestrogenemia","RECRUITING","2025-11-18",{"date":36,"type":37},"2025-11-21","ACTUAL",{"date":39,"type":37},"2024-07-01",{"date":41,"type":21},"2029-08-01",{"name":43,"class":44},"Mayo Clinic","OTHER",2]