Clinical Trials Logo

Clinical Trial Summary

Type 1 diabetes is the major type of diabetes in the young. The pathophysiology still needs clarification in order to reach feasible means of preventing the disease. This study aims in defining the differences in pancreatic and intestinal blood flow between subjects with and without type 1 diabetes and validating the methodology to achieve this. Earlier animal studies have demonstrated changes in pancreatic islet blood flow using microspheres. The aim of this study is to test and validate a method for the assessment of islet perfusion in humans using molecular imaging. The investigators hypothesize that glucose-stimulated pancreatic perfusion is enhanced specifically in islets in healthy subjects and that this increase is mostly suppressed in subjects with type 1 diabetes. Positron emission tomography (PET) is a non-invasive imaging technique, which can be used to study flow and metabolism of different organs. Using radiowater ([15O]H2O) and PET, cellular perfusion can be measured directly and noninvasively. Recently, diffusion weighted magnetic resonance imaging (DWI) has also been applied as a complimentary method for the assessment to quantitate changes in pancreatic blood flow. In the study 10 healthy subjects and 10 subjects with type 1 diabetes will be imaged on two separate days. Pancreatic and intestinal perfusion are first measured with [15O]H2O and combined PET/magnetic resonance imaging before and 5 and 15 minutes after intravenous glucose infusion. On the second day, PET imaging is replaced by dynamic DWI conducted in the same time schedule and with intravenous glucose stimulation.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT02547337
Study type Observational
Source Turku University Hospital
Contact
Status Completed
Phase
Start date September 10, 2015
Completion date June 10, 2021

See also
  Status Clinical Trial Phase
Recruiting NCT05653518 - Artificial Pancreas Technology to Reduce Glycemic Variability and Improve Cardiovascular Health in Type 1 Diabetes N/A
Enrolling by invitation NCT05515939 - Evaluating the InPen in Pediatric Type 1 Diabetes
Completed NCT05109520 - Evaluation of Glycemic Control and Quality of Life in Adults With Type 1 Diabetes During Continuous Glucose Monitoring When Switching to Insulin Glargine 300 U/mL
Recruiting NCT04016987 - Automated Structured Education Based on an App and AI in Chinese Patients With Type 1 Diabetes N/A
Active, not recruiting NCT04190368 - Team Clinic: Virtual Expansion of an Innovative Multi-Disciplinary Care Model for Adolescents and Young Adults With Type 1 Diabetes N/A
Active, not recruiting NCT05413005 - Efficacy of Extracorporeal Photopheresis (ECP) in the Treatment of Type 1 Diabetes Mellitus Early Phase 1
Active, not recruiting NCT04668612 - Dual-wave Boluses in Children With Type 1 Diabetes Insulin Boluses in Children With Type 1 Diabetes N/A
Recruiting NCT05414409 - The Gut Microbiome in Type 1 Diabetes and Mechanism of Metformin Action Phase 2
Completed NCT02837094 - Enhanced Epidermal Antigen Specific Immunotherapy Trial -1 Phase 1
Recruiting NCT05418699 - Real-life Data From Diabetic Patients on Closed-loop Pumps
Recruiting NCT05670366 - The Integration of Physical Activity Into the Clinical Decision Process of People With Type 1 Diabetes N/A
Completed NCT04084171 - Safety of Artificial Pancreas Therapy in Preschoolers, Age 2-6 N/A
Recruiting NCT06144554 - Post Market Registry for the Omnipod 5 System in Children and Adults With Type 1 Diabetes
Recruiting NCT05281614 - Immune Effects of Vedolizumab With or Without Anti-TNF Pre-treatment in T1D Early Phase 1
Recruiting NCT05153070 - Ciclosporin Followed by Low-dose IL-2 in Patients With Recently Diagnosed Type 1 Diabetes Phase 2
Recruiting NCT05379686 - Low-Dose Glucagon and Advanced Hybrid Closed-Loop System for Prevention of Exercise-Induced Hypoglycaemia in People With Type 1 Diabetes N/A
Withdrawn NCT04259775 - Guided User-initiated Insulin Dose Enhancements (GUIDE) to Improve Outcomes for Youth With Type 1 Diabetes N/A
Active, not recruiting NCT01600924 - Study on the Assessment of Determinants of Muscle and Bone Strength Abnormalities in Diabetes
Completed NCT02855307 - Closed-loop Control of Glucose Levels (Artificial Pancreas) During Postprandial Exercise in Adults With Type 1 Diabetes Phase 2
Completed NCT02897557 - Insulet Artificial Pancreas Early Feasibility Study N/A