Daytime Body Rhythms in Breath Chemicals of People With and Without Diabetes
Measures breath chemicals during the day in adults with and without diabetes.
Plain-language title generated from the registry record
Registry title: The Daytime Circadian Rhythm in Exhaled Volatile Organic Compounds in People Living Without and Diabetes
Key facts
- Where
- Bern, SwitzerlandSee the site
Where in Switzerland
- University of BernBern, SwitzerlandTaking people
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?
Trial details
- Who runs it
- University of Bern
- Trial code
- NCT05984979
- Record updated
- 8 December 2025
- Original description
Exhaled volatile organic compounds will be measured during daytime with the goal to identifying circadian variability. The study incudes three subgroups: people without diabetes, people with type 1 diabetes, and people with type 2 diabetes. A total of 60 people will be recruited for the study.Read full original descriptionShow less
The Daytime Circadian Rhythm in Exhaled Volatile Organic Compounds in People Living Without and With Type 1 and 2 Diabetes: an Exploratory Study
Exhaled volatile organic compounds will be measured during daytime with the goal to identifying circadian variability. The study incudes three subgroups: people without diabetes, people with type 1 diabetes, and people with type 2 diabetes. A total of 60 people will be recruited for the study.
Inclusion: Subgroup 1:; Age 18 or older; HbA1c below 6.5%; Written informed consent; Subgroup 2:; Age 18 or older; T1D (Type 1 diabetes) with MDI (multiple daily injection) or CSII (Continuous subcutaneous insulin infusion therapy) therapy >1 year; Written informed consent; Subgroup 3; Age 18 or older; T2D (Type 2 diabetes) with oral antidiabetic medication or insulin therapy; Written informed consent.
Exclusion: Antibiotic treatment in the previous 4 months; Any chronical lung and intestinal disease diagnosis (such as intestinal bowel disease (IBD); asthma; COPD (chronic obstructive pulmonary disease); lung cancer, …); Coeliac disease; Any acute disease diagnosis (such as viral or bacterial infection); Pregnancy or breastfeeding; Smoking (last cigarette less than 6 months ago); Lactose and fructose intolerance; Drinking habit of more than four units of alcohol per day; Current inhaled medicines treatments.