[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"menstrual-cycle-abnormal\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:menstrual-cycle-abnormal":28},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,3,0,[8,44,84],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":13,"acronym":14,"eligibilityCriteria":15,"healthyVolunteers":16,"sex":17,"minAge":18,"maxAge":19,"enrollmentInfo":20,"targetDuration":4,"studyType":23,"phases":24,"briefSummary":26,"conditions":27,"keywords":29,"overallStatus":31,"whyStopped":4,"lastUpdateSubmitDate":32,"lastUpdatePostDateStruct":33,"startDateStruct":36,"completionDateStruct":38,"leadSponsor":40,"locationsCount":43},"100638945","the-impact-of-whole-body-vibration-and-relaxation-techniques-on-adolescent-athlete-girls-with-triad-syndrome-100638945",false,"NCT07587346","The Impact of Whole-Body Vibration and Relaxation Techniques on Adolescent Athlete Girls With Triad Syndrome\"","WBV for triad","Inclusion Criteria:\n\n* Low energy availability (with or without disordered eating)\n* Menstrual dysfunction (oligomenorrhea)\n* Low bone mineral density or a history of stress fractures\n\nExclusion criteria:\n\n* Recent fractures or unhealed stress fractures within the last 6 months.\n* Presence of serious medical conditions that contraindicate WBV or exercise participation, such as: Uncontrolled cardiovascular disease, Uncontrolled hypertension, Neurological disorders, Severe vestibular disorders, Active cancer, Bleeding\u002Fclotting disorders.\n* Severe eating disorder requiring inpatient medical or psychiatric treatment.\n* Current use of medications that significantly affect bone or hormonal status\n* Participation in another interventional clinical study within the last 3 months.\n* Inability or unwillingness to provide assent\u002Fconsent or comply with study procedures.",true,"FEMALE","14 Years","16 Years",{"count":21,"type":22},50,"ESTIMATED","INTERVENTIONAL",[25],"NA","This study aims to explore the effects of Whole-Body Vibration (WBV) exercises and relaxation techniques on adolescent female athletes who are experiencing Female Athlete Triad Syndrome - a condition that may include low bone density, irregular menstrual cycles, and low energy availability.\n\nParticipants will take part in a structured program combining vibration training and relaxation sessions over several weeks. The goal is to determine whether this combination can improve bone health, menstrual regularity, physical performance, and overall well-being in young female athletes.",[28],"Menstrual Cycle Abnormal",[30],"Athelte traid , whole body vibration , relaxation technique","RECRUITING","2026-05-08",{"date":34,"type":35},"2026-05-14","ACTUAL",{"date":37,"type":35},"2025-11-02",{"date":39,"type":22},"2026-05-22",{"name":41,"class":42},"MTI University","OTHER",1,{"id":45,"slug":46,"hasResults":11,"nctId":47,"briefTitle":48,"officialTitle":49,"acronym":50,"eligibilityCriteria":51,"healthyVolunteers":16,"sex":17,"minAge":52,"maxAge":53,"enrollmentInfo":54,"targetDuration":4,"studyType":23,"phases":56,"briefSummary":57,"conditions":58,"keywords":70,"overallStatus":74,"whyStopped":4,"lastUpdateSubmitDate":75,"lastUpdatePostDateStruct":76,"startDateStruct":78,"completionDateStruct":80,"leadSponsor":82,"locationsCount":43},"100628155","effectiveness-of-an-mhealth-innovation-on-the-impact-of-menstrual-complaints-in-adolescents-100628155","NCT07457957","Effectiveness of an mHealth Innovation on the Impact of Menstrual Complaints in Adolescents","The Effectiveness of an mHealth Innovation on the Impact of Menstrual Complaints in Adolescents - A Randomised Controlled Trial","MGA","Inclusion Criteria:\n\n* Dutch, English, Turkish or Moroccan-Arabic speaking\n* Post menarche\n* Access to a smartphone or tablet with iOS or Android operating system\n\nExclusion Criteria:\n\n* Amenorrhea\n* Pregnancy\n* No menstrual bleeding or withdrawel bleeding in the 3 months prior to inclusion.\n* Previously or currently under treatment by a health care provider for menstrual complaints","12 Years","21 Years",{"count":55,"type":22},874,[25],"The aim of this study is to improve menstrual health-related quality of life in adolescents by using a mobile menstrual health tracker. We will perform a randomized controlled trial to evaluate the (cost)-effectiveness of this mHealth intervention.",[59,60,61,62,63,28,64,65,66,67,68,69],"Dysmenorrhea","Heavy Menstrual Bleeding","Menstrual Cramps","Menstrual Bleeding, Heavy","Menstrual Discomfort","Menstrual Disorder","Menstrual Health","Mobile Application","mHealth","Menstrual Health Intervention","Adolescent",[71,67,72,69,73],"randomized clinical trial","Menstrual health","Menstrual Tracker App","NOT_YET_RECRUITING","2026-03-04",{"date":77,"type":35},"2026-03-09",{"date":79,"type":22},"2026-02-16",{"date":81,"type":22},"2029-05-31",{"name":83,"class":42},"Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)",{"id":85,"slug":86,"hasResults":11,"nctId":87,"briefTitle":88,"officialTitle":89,"acronym":90,"eligibilityCriteria":91,"healthyVolunteers":16,"sex":17,"minAge":92,"maxAge":93,"enrollmentInfo":94,"targetDuration":4,"studyType":96,"phases":4,"briefSummary":97,"conditions":98,"keywords":101,"overallStatus":31,"whyStopped":4,"lastUpdateSubmitDate":108,"lastUpdatePostDateStruct":109,"startDateStruct":111,"completionDateStruct":113,"leadSponsor":115,"locationsCount":43},"100511238","quantum-menstrual-health-monitoring-study-100511238","NCT05936840","Quantum Menstrual Health Monitoring Study","Quantitative Hormonal Biomarkers of Menstrual Health in Normal and Abnormal Cycles","QMHMS","Inclusion Criteria:\n\n* Regularly menstruating, PCOS or athlete participants aged 18-45\n* Negative pregnancy test at the beginning and at the end of each cycle\n* Cycle lengths 24-34 days\n* Knowledge of previous 3 cycle lengths\n* Able to travel to Calgary Clinic for regular ultrasounds during the study period\n\nExclusion Criteria:\n\n* For regular cycles\n\n  * Anovulation in the last 3 cycles\n  * Currently or in the previous 3 months, on medications that are known to impair or stimulate ovulation (e.g. oral contraceptives, ovulation stimulants, etc)\n  * Known conditions that impair ovulation or fertility: polycystic ovarian syndrome, endometriosis, pelvic inflammatory disease in the last year, pituitary adenomas, exclusively breastfeeding\n  * Previous surgeries impacting the menstrual cycle: hysterectomy, bilateral oophorectomy\n  * Currently pregnant\n* For PCOS and athlete groups:\n\n  * Currently or in the previous 3 months, on medications that are known to impair or stimulate ovulation (e.g. oral contraceptives, ovulation stimulants, etc)\n  * Known conditions that impair ovulation or fertility: pelvic inflammatory disease in the last year, pituitary adenomas, exclusive breastfeeding\n  * Previous surgeries impacting the menstrual cycle: hysterectomy, bilateral oophorectomy\n  * Currently pregnant","18 Years","55 Years",{"count":95,"type":22},150,"OBSERVATIONAL","The Quantum Menstrual Health Monitoring Study will measure four key reproductive hormones in the urine to characterize patterns that predict and confirm ovulation, referenced to serum hormones and the gold-standard of the ultrasound day of ovulation in participants with regular cycles. These normal cycles will provide a reference for comparison to irregular cycles in polycystic ovarian syndrome (PCOS) and athletes. Clinical signs in the menstrual cycle (e.g. menstrual bleeding, temperature) as well as vital sign and sleep patterns will also be referenced to hormonal changes.",[28,99,100],"Polycystic Ovary Syndrome","Athletes",[102,103,104,105,106,107],"Quantitative urinary hormones","Follicle-stimulating hormone","Luteinizing hormone","Estrone-3-glucuronide","Pregnanediol glucuronide","Ultrasound","2024-10-24",{"date":110,"type":35},"2024-10-28",{"date":112,"type":35},"2024-05-01",{"date":114,"type":22},"2026-05-01",{"name":116,"class":117},"Quanovate Tech Inc.","INDUSTRY"]