Skip to content

The influence of type 1 diabetes on cardiac function and oxygen uptake during exercise capacity in children and adolescents – The T1CKET Study

The influence of type 1 diabetes on cardiac function and oxygen uptake during exercise capacity in children and adolescents – The T1CKET Study - T1CKET

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00038016
Enrollment
40
Registered
2025-10-31
Start date
2025-10-02
Completion date
Unknown
Last updated
2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

E10.91

Interventions

Group 1: Children and adolescents with type 1 diabetes Studyprocedure First information and informed consent. During screening visit, data on sex, age, height, weight, body mass index, medical and fam

Sponsors

Kinder- und Jugendkrankenhaus AUF DER BULT
Lead Sponsor

Eligibility

Sex/Gender
All
Age
12 Years to 18 Years

Inclusion criteria

Inclusion criteria: - T1D more than 5 years (only group A) - Age 12-18 years - No diabetic ketoacidosis in the last 6 months (only group A) - Written consent from at least one parent/guardian

Exclusion criteria

Exclusion criteria: - Known heart defects such as hemodynamically relevant ventricular or atrial septal defect, transposition of the great arteries, aortic isthmus stenosis, tetralogy of Fallot, hypoplastic left heart syndrome, Ebstein anomaly, double aortic arch - Pre-existing heart failure - Hypertrophic cardiomyopathy - Cardiac arrhythmias - Known arterial hypertension - Known renal insufficiency - Chronic pulmonary diseases: severe bronchial asthma, cystic fibrosis, pulmonary hypertension - A history of cancer - Pregnancy (clinical indication) - Diabetic ketoacidosis within the last 6 months

Design outcomes

Primary

MeasureTime frame
The primary endpoint is the prevalence of pathological differences in cardiac function, in particular the UTR/twist in combination with the E/A ratio under sub-maximal exercise in children and adolescents with type 1 diabetes and its correlation with glycemic metrics (coefficient of variation [CV], Time in Range [TIR], Time below Range [TBR], Time above Range [TAR], average glucose [AV], standard deviation [SD]).

Secondary

MeasureTime frame
- Association between HbA1c and cardiac-skeletal muscle interaction - Influence of maximum glucose values on relationship between cardiac output and skeletal muscle oxygen consumption - Influence of pre-exercise glucose levels on relationship between cardiac output and skeletal muscle oxygen consumption - Influence of minimum glucose values on relationship between cardiac output and skeletal muscle oxygen consumption - Influence of the rate of glucose change on relationship between cardiac output and skeletal muscle oxygen consumption - Influence of glycemic variability on muscle oxygen saturation - Evaluation of differences on relationship between cardiac output and skeletal muscle oxygen consumption between the sexes - Influence of BMI on relationship between cardiac output and skeletal muscle oxygen consumption - Association with positive history of diabetic ketoacidosis - Influence of lipid metabolism on relationship between cardiac output and skeletal muscle oxygen consumption - Influence of diabetes duration on relationship between cardiac output and skeletal muscle oxygen consumption - Evaluation of different lactate elevations between T1D and controls

Countries

Germany

Contacts

Public ContactOlga Kordonouri

Kinder- und Jugendkrankenhaus AUF DER BULT

kordonouri@hka.de+4951181153331

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Jun 11, 2026