Evaluation of the diagnostic accuracy of FeNO in patients with suspected asthma: a prospective validation study

Klinikum rechts der Isar, Institut für Allgemeinmedizin und Versorgungsforschung der Technischen Universität München0 sites300 target enrollmentJune 24, 2020

ConditionsJ45 Asthma

Overview

Phase: 未知
Intervention: Not specified
Conditions: J45
Sponsor: Klinikum rechts der Isar, Institut für Allgemeinmedizin und Versorgungsforschung der Technischen Universität München
Enrollment: 300
Status: Not yet recruiting
Last Updated: last year

Overview Investigators Eligibility Criteria Outcomes Similar Trials

Overview

Brief Summary

No summary available.

Registry

who.int

Start Date

June 24, 2020

End Date

TBD

Last Updated

last year

Study Type

Interventional

Sex

All

Investigators

Sponsor

Klinikum rechts der Isar, Institut für Allgemeinmedizin und Versorgungsforschung der Technischen Universität München

Eligibility Criteria

Inclusion Criteria

•All adult patients suspected to suffer from asthma, visiting one of the participating practices of pneumologists and who declare their written informed consent to participate in the study will be consecutively included.

Exclusion Criteria

•Patients with the following criteria are not included:
•Patients who do not agree to participate in this study
•Patients younger than 18 years
•Patients who do not understand the meaning of the study due to a lack of knowledge of the German language
•Patients with an already diagnosed obstructive airway disease
•Patients who smoked on the day of the examination (falsification of the FeNO measurement and bronchial provocation test)
•Patients who have eaten a large amount of nitrate\-rich diet (e.g. salad) before the examination (false high FeNO values)
•Patients with airway infection \= 6 weeks prior study enrolement (distortion of the FeNO measurement and/or bronchial provocation test)