[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100652275":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":10,"centralContacts":15,"locations":10,"responsibleParty":21,"collaborators":10,"id":25,"slug":26,"hasResults":27,"nctId":28,"briefTitle":29,"officialTitle":30,"acronym":31,"eligibilityCriteria":32,"healthyVolunteers":27,"sex":33,"minAge":34,"maxAge":35,"enrollmentInfo":36,"targetDuration":10,"studyType":39,"phases":10,"briefSummary":40,"conditions":41,"keywords":43,"overallStatus":47,"whyStopped":10,"lastUpdateSubmitDate":48,"lastUpdatePostDateStruct":49,"startDateStruct":52,"completionDateStruct":54,"leadSponsor":56,"locationsCount":10},{"fullName":5,"class":6},"Central Hospital, Nancy, France","OTHER",[8,12],{"label":9,"type":10,"description":11,"interventionNames":10},"Children with positive response to exercise challenge test",null,"Children aged 5 to 16 years old who performed an exercise challenge test and had a decrease of ≥ 10% in FEV1 after test (FEV1 = forced expiratory volume in 1 sec obtained by forced spirometry)",{"label":13,"type":10,"description":14,"interventionNames":10},"Children with NEGATIVEresponse to exercise challenge test","Children aged 5 to 16 years old who performed an exercise challenge test and had a decrease of \\\u003C 10% in FEV1 after test (FEV1 = forced expiratory volume in 1 sec obtained by forced spirometry)",[16],{"name":17,"role":18,"phone":19,"phoneExt":10,"email":20},"Iulia Ioan, MD PhD","CONTACT","+33 3 83 15 47 94","ic.ioan@chru-nancy.fr",{"type":22,"investigatorFullName":23,"investigatorTitle":24,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","Dr. Iulia IOAN","Head of Pediatric Function Testing Department","100652275","respiratory-admittance-by-oscillometry-in-children-100652275",false,"NCT07771608","Respiratory Admittance by Oscillometry in Children","Respiratory Admittance Response to Exercise Challenge Test in Children","ArsEIB","Inclusion Criteria:\n\n* Children aged 5 to 16 years\n* Children addressed by the pediatric pulmonologist to an exercise challenge test between January 2023 and April 2026\n* Children with interpretable and reproducible oscillometric measurements\n* Children with interpretable and reproducible spirometric measurements\n\nExclusion Criteria:\n\n* Children who performed only spirometric measurements\n* Children who performed only oscillometric measurements\n* Children whose oscillometric and spirometric measurements are non-interpretable\n* Children whose oscillometric and spirometric measurements are non-reproducible","ALL","5 Years","16 Years",{"count":37,"type":38},144,"ESTIMATED","OBSERVATIONAL","Oscillometry is a pulmonary function testing technique suited for children because it does not require specific respiratory maneuvers like spirometry. Oscillometry provides a measure of respiratory impedance (Zrs) that is underestimated when the oscillatory signal is applied at the subject's mouth particularly during bronchoconstriction induced by an exercise challenge test (ECT). This limitation may be overcome by calculating respiratory admittance (Ars), the inverse of respiratory impedance during an ECT.",[42],"Asthma (Diagnosis)",[44,45,46],"lung function testing","oscillometry","asthma","NOT_YET_RECRUITING","2026-08-17",{"date":50,"type":51},"2026-08-19","ACTUAL",{"date":53,"type":38},"2026-08-25",{"date":55,"type":38},"2026-09-01",{"name":5,"class":6}]