[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100566907":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":29,"centralContacts":33,"locations":42,"responsibleParty":76,"collaborators":79,"id":84,"slug":85,"hasResults":86,"nctId":87,"briefTitle":88,"officialTitle":89,"acronym":90,"eligibilityCriteria":91,"healthyVolunteers":92,"sex":93,"minAge":94,"maxAge":95,"enrollmentInfo":96,"targetDuration":10,"studyType":99,"phases":10,"briefSummary":100,"conditions":101,"keywords":105,"overallStatus":45,"whyStopped":10,"lastUpdateSubmitDate":111,"lastUpdatePostDateStruct":112,"startDateStruct":115,"completionDateStruct":117,"leadSponsor":119,"locationsCount":120},{"fullName":5,"class":6},"Royal Brompton & Harefield NHS Foundation Trust","OTHER",[8,15],{"label":9,"type":10,"description":11,"interventionNames":12},"Affected",null,"Children diagnosed with Long QT Syndrome and Catecholaminergic Polymorphic Ventricular Tachycardia",[13,14],"Diagnostic Test: Exercise tolerance test","Other: Physical activity & heart rate monitoring",{"label":16,"type":10,"description":17,"interventionNames":18},"Unaffected","Healthy children (siblings of affected or those undergoing screening)",[13,14],[20,25],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":10},"DIAGNOSTIC_TEST","Exercise tolerance test","Clinical routine exercise tolerance test using an exercise treadmill, according to the arrhythmia protocol (15 minute protocol utilising increasing speed and incline with a 6 minute recovery)",[9,16],{"type":6,"name":26,"description":27,"armGroupLabels":28,"otherNames":10},"Physical activity & heart rate monitoring","Physical activity monitoring over two weeks using Actiheart and Pro-Diary monitors to record heart rate, heart rhythm, activities engaged in and estimated intensity of activities.",[9,16],[30],{"name":31,"affiliation":5,"role":32},"Catherine E Renwick","PRINCIPAL_INVESTIGATOR",[34,38],{"name":31,"role":35,"phone":36,"phoneExt":10,"email":37},"CONTACT","07968534941","c.renwick@rbht.nhs.uk",{"name":39,"role":35,"phone":40,"phoneExt":10,"email":41},"Ethaar El-Emire","0207 351 8109","E.El-Emir@rbht.nhs.uk",[43,62],{"facility":44,"status":45,"city":46,"state":10,"zip":47,"country":48,"countryCode":49,"cosmosGeoPoint":50,"geoPoint":55,"contacts":56},"Great Ormond Street Hospital","RECRUITING","London","WC1N 3JH","United Kingdom","UK",{"type":51,"coordinates":52},"Point",[53,54],-0.12574,51.50853,{"lat":54,"lon":53},[57,60],{"name":58,"role":35,"phone":10,"phoneExt":10,"email":59},"Sanela Andrijac","Sanela.Andrijac@gosh.nhs.uk",{"name":61,"role":32,"phone":10,"phoneExt":10,"email":10},"Juan Pablo Kaski",{"facility":63,"status":45,"city":64,"state":10,"zip":65,"country":48,"countryCode":49,"cosmosGeoPoint":66,"geoPoint":70,"contacts":71},"Royal Brompton Hospital","Sutton","SW36NP",{"type":51,"coordinates":67},[68,69],-0.2,51.35,{"lat":69,"lon":68},[72,74],{"name":73,"role":35,"phone":10,"phoneExt":10,"email":41},"Ethhaar El-Emir",{"name":75,"role":32,"phone":10,"phoneExt":10,"email":10},"Catherine Renwick",{"type":32,"investigatorFullName":77,"investigatorTitle":78,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"Renwick Catherine","Consultant Nurse \u002F HEE\u002FNIHR Doctoral Clinical and Practitioner Academic Fellow",[80,82],{"name":81,"class":6},"Great Ormond Street Hospital for Children NHS Foundation Trust",{"name":83,"class":6},"Guy's and St Thomas' NHS Foundation Trust","100566907","evaluation-of-exercise-testing-and-physical-activity-in-children-and-adolescents-living-with-inherited-arrhythmias-100566907",false,"NCT06661278","Evaluation of Exercise Testing and Physical Activity in Children and Adolescents Living With Inherited Arrhythmias","Evaluation of Free-living Physical Activity and the Assessment Tools Used to Support Pharmacological Therapy Titration and Exercise Prescription in Children and Adolescents Diagnosed With Inherited Arrhythmias","ACTIVELY","Inclusion Criteria:\n\nAffected cohort\n\n* Male and female children\n* Aged 6-16 years\n* Diagnosed with long QT syndrome or catecholaminergic polymorphic ventricular tachycardia\n* Treated with beta-blocker and\u002For sodium channel blockade\n* Able to complete a treadmill ETT\n\nHealthy cohort\n\n* Male and female children\n* Aged 6-16 years\n* Siblings of affected children (gene negative)\n* Undergoing IAS screening\n* Able to complete a treadmill ETT\n\nExclusion Criteria:\n\n* Children aged less than 6 years\n* Adults, 17 years of age and above\n* Unable to run on an exercise treadmill due to physical limitations.\n* Individuals unable to speak or understand English, due to no translation service available.\n* Pregnancy",true,"ALL","6 Years","16 Years",{"count":97,"type":98},110,"ESTIMATED","OBSERVATIONAL","The goal of this observational study is to evaluate exercise testing and daily physical activity in children and adolescents who are diagnosed with an inherited arrhythmia.\n\nThe main question it aims to answer is: Does maximum heart rate during controlled exercise tolerance testing accurately reflect maximum heart rate and peak exercise levels during free living daily physical activity in children and adolescents diagnosed with an inherited arrhythmia?\n\nParticipants will:\n\n* Complete routine exercise tolerance testing\n* Record daily physical activity and exercise over two weeks, while wearing an activity and heart rate monitor and digit diary.\n* Complete a physical activity questionnaire at the end of two weeks.",[102,103,104],"Long QT Syndrome","Catecholaminergic Polymorphic Ventricular Tachycardia Type 1","Catecholaminergic Polymorphic Ventricular Tachycardia Type 2",[106,107,108,109,110],"Children","Adolescents","Exercise","Physical activity","Exercise tolerance testing","2025-05-30",{"date":113,"type":114},"2025-05-31","ACTUAL",{"date":116,"type":114},"2025-03-18",{"date":118,"type":98},"2025-12-31",{"name":5,"class":6},2]