CompletedNot Applicable

Impact of Chewing Gum on FeNO Levels in Patients With Bronchial Asthma

Germany30 participantsStarted 2025-08-01

Plain-language summary

The aim of the study is to investigate the influence of chewing gum consumption on FeNO levels in asthma patients in order to avoid systematic errors in treatment decisions.

Who can participate

Age range18 Years

SexALL

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Inclusion criteria

✓. have known bronchial asthma with a FeNO level ≥25 ppb at regular medical checkups
✓. are of legal age
✓. are mentally and physically capable of understanding the significance and scope of the study and obeying the instructions of study personnel
✓. are legally competent and have signed the informed consent form.

Exclusion criteria

✕. Current or past medically relevant illness or treatment that could impact the evaluability of the study.
✕. FeNO levels \< 25 ppb
✕. Medical contraindications to conducting FeNO measurements
✕. Expected unwillingness to actively participate in study-related measures.
✕. Known allergies or intolerances to the contents of chewing gum
✕. Smoking, alcohol consumption, mouthwash use, chewing gum/candy/lettuce/spinach/kale/beetroot/radish/sausage consumption, or exercise on the day of the study.

What they're measuring

FeNO measurement after 15 minutes of consuming sugar-free, antioxidant-containing chewing gum

Timeframe: 15 Minutes

Trial details

NCT IDNCT07053956

SponsorRWTH Aachen University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2025-12-17

View on ClinicalTrials.gov More Asthma Bronchiale trials