[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100628294":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":12,"centralContacts":16,"locations":22,"responsibleParty":39,"collaborators":10,"id":42,"slug":43,"hasResults":44,"nctId":45,"briefTitle":46,"officialTitle":47,"acronym":10,"eligibilityCriteria":48,"healthyVolunteers":49,"sex":50,"minAge":51,"maxAge":52,"enrollmentInfo":53,"targetDuration":10,"studyType":56,"phases":10,"briefSummary":57,"conditions":58,"keywords":60,"overallStatus":24,"whyStopped":10,"lastUpdateSubmitDate":65,"lastUpdatePostDateStruct":66,"startDateStruct":69,"completionDateStruct":71,"leadSponsor":73,"locationsCount":74},{"fullName":5,"class":6},"Stanford University","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":10},"Women",null,"Young women with regular menstrual cycles",[13],{"name":14,"affiliation":5,"role":15},"Jamie M Zeitzer, PhD","PRINCIPAL_INVESTIGATOR",[17],{"name":18,"role":19,"phone":20,"phoneExt":10,"email":21},"Lara Weed, BS, MS","CONTACT","650-723-2300","weed@stanford.edu",[23],{"facility":5,"status":24,"city":25,"state":26,"zip":27,"country":28,"countryCode":29,"cosmosGeoPoint":30,"geoPoint":35,"contacts":36},"RECRUITING","Stanford","California","94305","United States","US",{"type":31,"coordinates":32},"Point",[33,34],-122.16608,37.42411,{"lat":34,"lon":33},[37],{"name":38,"role":19,"phone":10,"phoneExt":10,"email":21},"Lara Weed",{"type":15,"investigatorFullName":40,"investigatorTitle":41,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"Jamie Zeitzer","Professor","100628294","body-clocks---coordination-of-peripheral-and-central-oscillators-100628294",false,"NCT07459764","Body Clocks - Coordination of Peripheral and Central Oscillators","Confluence of Sleep, Circadian Rhythms, and the Menstrual Cycle on Injury Risk in Women","Inclusion Criteria:\n\n* Regular menstrual cycle (21-35 days)\n* 18-30 years old\n\nExclusion Criteria:\n\n* Neuromuscular or neurodegenerative disease\n* Gut disorders\n* circadian sleep disorders\n* prescription medications affecting sleep\n* recovering from physical injury\n* taking hormonal birth control",true,"FEMALE","18 Years","30 Years",{"count":54,"type":55},20,"ESTIMATED","OBSERVATIONAL","The investigators are conducting an observational trial examining young women over the course of 28 days in which we are monitoring movement, sleep, heart rate, oxygen saturation, gut physiology, light, and menstrual cycle. The inter- and independence of the cyclicity of these variables with each other, the circadian cycle, the menstrual cycle, and the sleep cycle will be tested.",[59],"Circadian Dysregulation",[61,62,63,64],"sleep","circadian","menstrual","women's health","2026-04-21",{"date":67,"type":68},"2026-04-24","ACTUAL",{"date":70,"type":68},"2026-04-15",{"date":72,"type":55},"2026-09-30",{"name":5,"class":6},1]