[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100505635":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":31,"centralContacts":36,"locations":26,"responsibleParty":44,"collaborators":26,"id":46,"slug":47,"hasResults":48,"nctId":49,"briefTitle":50,"officialTitle":51,"acronym":26,"eligibilityCriteria":52,"healthyVolunteers":48,"sex":53,"minAge":54,"maxAge":26,"enrollmentInfo":55,"targetDuration":26,"studyType":58,"phases":59,"briefSummary":61,"conditions":62,"keywords":71,"overallStatus":77,"whyStopped":26,"lastUpdateSubmitDate":78,"lastUpdatePostDateStruct":79,"startDateStruct":82,"completionDateStruct":84,"leadSponsor":86,"locationsCount":26},{"fullName":5,"class":6},"Ottawa Hospital Research Institute","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"vitamin D +\u002F- calcium supplementation","EXPERIMENTAL","patients given Vitamin D 1000iu daily. Also given calcium 500mg BID daily if calcium deficient.",[13],"Dietary Supplement: vitamin D +\u002F- calcium",{"label":15,"type":16,"description":17,"interventionNames":18},"Placebo arm","PLACEBO_COMPARATOR","patients given 3 pills of placebo daily.",[19],"Other: Placebo",[21,27],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"DIETARY_SUPPLEMENT","vitamin D +\u002F- calcium","vitamin D 1000iU daily +\u002F- calcium 500mg BID daily",[9],null,{"type":6,"name":28,"description":29,"armGroupLabels":30,"otherNames":26},"Placebo","placebo pill x3 daily",[15],[32],{"name":33,"affiliation":34,"role":35},"Darren Tse, MD","Ottawa Hospita Research Institute","PRINCIPAL_INVESTIGATOR",[37,42],{"name":33,"role":38,"phone":39,"phoneExt":40,"email":41},"CONTACT","6137997838","13360","dtse88@gmail.com",{"name":43,"role":38,"phone":39,"phoneExt":26,"email":41},"Darren Tse",{"type":35,"investigatorFullName":43,"investigatorTitle":45,"investigatorAffiliation":5,"oldNameTitle":26,"oldOrganization":26},"Physician","100505635","clinical-trial-of-vit-d-and-calcium-for-recurrent-bppv-100505635",false,"NCT05863949","Clinical Trial of Vit D and Calcium for Recurrent BPPV","STOP Vertigo: Supplementation of Vitamin D for Termination of Recurrences From Benign Paroxysmal Positional Vertigo","Inclusion Criteria:\n\n* Age 18 years or older\n* 2 or more distinct episodes of benign paroxysmal positional vertigo within a 12-month period on history\n* At least 1 episode diagnosed based on physical examination by trained study personnel, meeting the diagnostic criteria of the Bárány Society\n* Episodes separated in time, with a minimum of 1 week symptom-free between episodes\n* Serum evidence of Vitamin D deficiency, as evidenced by 25-hydroxy vitamin D level of \\\u003C75 nmol\u002FL (\\\u003C30 ng\u002FmL)48\n* Subject able to provide informed consent to participate in the study\n\nExclusion Criteria:\n\nPotential subjects will be excluded if they\n\n* have another identifiable cause of vertigo identified on history or physical examination\n* have a history of allergy or medically significant adverse reaction to vitamin D or calcium carbonate\n* have a chronic medical disorder which is a contraindication to vitamin D or calcium carbonate supplementation, including uncontrolled hyperparathyroidism, nephrolithiasis, or GI malabsorption disorders\n* are on loop diuretic agents or thiazides\n* have a contraindication to routine bloodwork for study purposes, including being hospitalized with a critical illness, cellulitis at blood draw sites, or presence of vascular grafts.","ALL","18 Years",{"count":56,"type":57},860,"ESTIMATED","INTERVENTIONAL",[60],"NA","Randomized double blind placebo controlled trial of vitamin D supplements, with or without calcium supplementation, versus placebo in reduction of recurrences in BPPV.",[63,64,65,66,67,68,69,70],"BPPV","Benign Paroxysmal Positional Vertigo","Vertigo","Vertigo, Peripheral","Dizziness","Dizziness; Epidemic","Vitamin D Deficiency","Calcium Deficiency",[72,73,74,75,76],"bppv","benign paroxysmal positional vertigo","vertigo","dizziness","vitamin D","NOT_YET_RECRUITING","2025-06-20",{"date":80,"type":81},"2025-06-25","ACTUAL",{"date":83,"type":57},"2025-08",{"date":85,"type":57},"2026-09",{"name":5,"class":6}]