About this trial
Early diabetic kidney disease (DKD) occurs in 50-70% of youth with type 2 diabetes (T2D) and confers high lifetime risk of dialysis and premature death. Youth-onset T2D typically manifests during or shortly after puberty in adolescents with obesity. Epidemiological data implicate puberty as an accelerator of kidney disease in youth with obesity and diabetes and the investigators posit that the link between puberty and T2D-onset may explain the high burden of DKD in youth-onset T2D. A better understanding of the impact of puberty on kidney health is needed to promote preservation of native kidney function, especially in youth with T2D.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
HbA1c ≥6.0% for untreated high-risk group
BMI ≥ 85th %ile for high-risk group
Normal HbA1c ≤5.6% for control group
Type 1 diabetes (T1D) Antibody negative
Disqualifiers
History of Chronic kidney disease (CKD) or acute kidney injury (AKI)
Metabolic disorder prohibiting safe fasting
Iodine or penicillin allergy
Pregnancy
Trial population
The investigators propose to address the specific aims of this study in an accelerated longitudinal project with 40 adolescents with normal HbA1c (≤5.6%) and 60 with overweight/obesity and/or newly diagnosed T2D (BMI≥85%ile) and elevated HbA1c (≥6.0%) or on anti-diabetic medications ranging from TS 1-4 (Ages 8-14 yr). They will be studied annually for 2 years.
Trial design
Cohort
Cross-sectional
Treatments tested in this trial
Aminohippurate Sodium Inj 20%
DrugDiagnostic aid/agent used to measure effective renal plasma flow (ERPF)
Iohexol Inj 300 MG/ML
DrugDiagnostic aid/agent used to measure glomerular filtration rate (GFR)
Dextran 40
DrugDiagnostic aid/agent used to measure glomerular size and selectivity
Treatment groups
Trial outcomes
Primary outcomes
Effective renal plasma flow (ERPF)
Measured by PAH Clearance
Glomerular Filtration Rate (GFR)
Measured by iohexol clearance
Secondary outcomes
Insulin Sensitivity
Measured by IV glucose tolerance test (IVGTT)
Renal perfusion
Arterial spin labeling (ASL) MRI
Renal oxygenation
Blood oxygen level dependent (BOLD) MRI
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Petter Bjornstad
Lead sponsor
Seattle Children's Hospital
Sponsor institution
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Collaborator
Seattle Children's Hospital
Collaborator
University of Colorado, Denver
Collaborator