Evaluation of Correlations Between Volatile Organic Compounds and Venous Blood Glucose in Subjects With Type 2 Diabetes

Inclusion Criteria: * Signed written informed consent * T2D treated with one or more oral anti-diabetic drugs (incl GLP-1 and/or GIP) * \< 10 years since T2D diagnosis * HbA1c ≤8% (HbA1c based on last measurement by treating physician but not older than 120 days) * Willingness to undergo study procedures * Age 45 -70 years (inclusive) Exclusion Criteria: * Pregnancy and/or lactation period * Currently on chronic or occasional treatment with pulmonary drugs * Insulin dependency * Smoking (last cigarette within the last six months) * BMI above 30 kg/m² * Lp(a) above 125 nmol/l * LDL not in the individual target range of an earlier cholesterol goal according ESC guideline 2021 (LDL based on last measurement by treating physician but not older than 30 days) * Irregular 12-lead ECG or increased carotid plaque burden based on a three-point sonography. Both examinations are performed and evaluated according to the investigator's judgment. * History of, or manifested, cardiovascular diseases * Medical history of epilepsy or other neurological disease associated with seizure events * Known sensitivity to medical grade adhesives * Comorbidities that are suspected to alter the VOC spectra * Participation in another investigation with an investigational drug within the 30 days preceding and during the present investigation * Not able to understand, write or read German