Fractional Exhaled Nitric Oxide (FeNO)- Test as add-on Test in the Diagnostic Work-up of Asthma

Launched by FRANCISCUS GASTHUIS & VLIETLAND (HOSPITAL) · Jan 20, 2024

Keywords

ClinConnect Summary

This clinical trial is studying a new way to diagnose asthma by adding a test called the FeNO-test. This test measures the level of nitric oxide in your breath, which can help doctors understand if you have asthma. The goal is to see if using the FeNO-test can reduce the need for a more invasive test called the bronchial challenge test (BPT), which can be uncomfortable and costly. Researchers will compare the traditional method of diagnosing asthma with the new method that includes the FeNO-test to see if it helps save money and makes the process easier for patients.

To participate in this study, you need to be at least 18 years old and have symptoms that suggest you might have asthma but have not been diagnosed yet. If you have had asthma diagnosed before or had a respiratory infection in the last three weeks, you won't be eligible to join. If you do participate, you can expect to undergo both the FeNO-test and the standard tests, and researchers will track how you feel and the impact of these tests on your quality of life. Your comfort and the accuracy of the FeNO-test will be important parts of this study.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Patients ≥ 18 years old visiting the outpatient clinic pulmonology with the suspicion of asthma will be asked to participate in this study. For reasons of external validity and generalizability of the study results, it was decided not to exclude subgroups such as smokers or obese patients.
• Exclusion Criteria:
• • Patients with already diagnosed asthma are not allowed to participate.
• • The inclusion of patients with respiratory infections \<3 weeks ago will be postponed to \>3 weeks.