Testing How Odors and Beliefs Affect Asthma Symptoms
Tests whether odors and beliefs about them change asthma symptoms in adults.
Plain-language title generated from the registry record
Registry title: The Effect of Odors on Asthma Symptoms
Key facts
- Where
- Leuven, BelgiumSee the site
AI summary: who the study is looking for
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults aged 18 to 65 with a doctor's diagnosis of asthma. It studies how odors and beliefs about them affect asthma symptoms.
- Age
- 18 to 65 years
- Sex
- All sexes can join.
- Disease stage
- A doctor's diagnosis of asthma. FEV1 must not be lower than 60% predicted.
Main reasons for not taking part
- FEV1 lower than 60% predicted
- A clinical condition other than asthma
Read by machine on 12 November 2026.
Could this be for you?
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 18 and 65 years old?
Source: NCT02624362, who can take part
Where in Belgium
- UZ LeuvenLeuven, BelgiumNo longer taking part
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorTrial details
- Who runs it
- Universitaire Ziekenhuizen KU Leuven
- Trial code
- NCT02624362
- Record updated
- 3 July 2024
- Original description
An extended replication of Jaen \& Dalton (2014), the investigators aim to investigate the role of odors and associated trigger beliefs on symptom perception and airway inflammation in individuals with asthmaRead full original descriptionShow less
The Effect of Suggestion of Harmful/Beneficial Effects of Odors on Asthma Symptoms
An extended replication of Jaen \& Dalton (2014), the investigators aim to investigate the role of odors and associated trigger beliefs on symptom perception and airway inflammation in individuals with asthma
Inclusion: A physician diagnosis of asthma.
Exclusion: clinical condition other than asthma; FEV1 lower than 60% predicted.