Evaluation of Exercise Induced Bronchoconstriction Using a Novel Automated Digital Clinical Decision System
NCT ID: NCT05162703
Last Updated: 2021-12-17
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
NA
15 participants
INTERVENTIONAL
2021-09-27
2022-04-30
Brief Summary
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Detailed Description
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Asthma and EIB represents an important challenge in both athletes and the general population, and correct diagnosis is important as it affects health as well as performance.
Presence of BHR is demonstrated by direct or indirect bronchial provocation testing. Indirect bronchial provocation includes several methods for the diagnosis of EIB. The most intuitive is exercise (field and laboratory) challenge testing (ECT), but sensitivity has been reported to be low, since exercise load and intensity have large impact on ability to detect EIB and in field-testing (FT), standardizing ambient conditions are impossible.
Suboptimal tests for EIB may explain why previous papers report poor relationship between symptoms of EIA and the objective EIB in athletes, leaving the actual rate of EIB remains unclear. What has been argued to be the true "gold standard" is a sports-specific exercise FT, performed in the actual training conditions which also makes it easier for the athlete to perform at maximum exercise. The advantages of monitoring with peak expiratory flow (PEF) or forced expiratory volume in 1 s (FEV1) outside a laboratory with a PEF meter or spirometer, respectively, are that it is simple and cheap. It also enables measure of bronchial challenge testing in close relationship to symptoms, since laboratory bronchial challenge testing often are negative in subjects being away from their profession too long. However, traditional non-digital method of serial PEF/FEV1 monitoring has limitations with poor adherence, interpretation difficulties with objectivity and time-consuming analysis and reading of paper PEF/FEV1 plots.
Recently, AsthmaTuner (Medituner AB) consisting of a patient smartphone application, a portable wireless spirometer for measuring lung function (PEF/FEV1), and a healthcare interface including treatment plan, was reported to significantly improve management of uncontrolled asthma. Such electronically clinical decision support systems (CDSS) has gained acceptance for the diagnosis of asthma, and by the ability to assess patient generated data in field ECTs, the CE-marked AsthmaTuner may provide athletes a feasible, time and cost-efficient self-monitoring of EIB and asthma. AsthmaTuner may also empower athletes in monitoring their lung function over time. These lung function measurements contain unexpected amounts of information for identifying athletes with distinct phenotypes of EIB due to strenuous sports and environmental conditions. Hence, AsthmaTuner have the potential to fill the knowledge gap regarding prevalence of EIB, development of EIB and the lack of association between symptoms and detection of EIB in athletes.
The primary objective of this study is to assess if the unstandardized field exercise challenge test (ECT) using AsthmaTuner can be performed independently by youths that have been investigated for asthma. This is an open feasibility study including youths who have been investigated for asthma. Participants will be equipped with a spirometer and and the AsthmaTuner mobile phone app to perform an exercise tests in their natural training environment. Feasibility will be evaluated using questionnaires.
Conditions
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Study Design
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NA
SINGLE_GROUP
DIAGNOSTIC
NONE
Study Groups
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Intervention group
Participants will be equipped with a spirometer and and the AsthmaTuner mobile phone app to perform an exercise tests in their natural training environment. Feasibility will be evaluated using questionnaires.
AsthmaTuner
Exercise challenge test using AsthmaTuner mobile phone app and spirometer.
Interventions
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AsthmaTuner
Exercise challenge test using AsthmaTuner mobile phone app and spirometer.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
15 Years
20 Years
ALL
Yes
Sponsors
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Karolinska Institutet
OTHER
Region Stockholm
OTHER_GOV
Responsible Party
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Principal Investigators
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Locations
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Astrid Lindgren Children's Hospital, Karolinska University Hospital
Stockholm, , Sweden
Countries
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Other Identifiers
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K 2021-5960
Identifier Type: -
Identifier Source: org_study_id