Clinical Trials Logo

Clinical Trial Summary

It is thought that altered brain lactate handling is involved in the development of impaired awareness of hypoglycemia (IAH), i.e. the inability to timely detect hypoglycemia in people with type 1 diabetes (T1DM). Infusion of lactate diminishes symptomatic and hormonal responses to hypoglycemia in patients with normal awareness of hypoglycemia (NAH), resembling the situation of patients with IAH. It is unknown whether this attenuating effect is due to brain lactate oxidation or the result of lactate-induced alterations of global and regional cerebral blood flow (CBF).

Normally, hypoglycemia causes a redistribution of CBF towards the thalamus, from where the sympathetic response to hypoglycemia is coordinated, but in IAH this effect is absent and global CBF is increased. We hypothesize that lactate infusion in patients with NAH will result in blunting of thalamic activation and/or enhanced global CBF. If so, these results may help delineating the pathogenesis of IAH which eventually creates new avenues to protect against the morbidity associated with hypoglycemia and IAH.

Study design: Single-blind placebo controlled, randomized cross-over intervention study Study population: T1DM patients with NAH (n=10) Intervention: On two separate occasions, patients with T1DM and NAH will undergo a hyperinsulinemic euglycemic-hypoglycemic glucose clamp with or without the infusion of exogenous lactate. ASL-MRI will be applied to measure global and regional changes in CBF.

Main study parameters/endpoints: The change in regional thalamic CBF in response to intravenous lactate infusion compared to placebo, during hypoglycemia


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT03730909
Study type Interventional
Source Radboud University
Contact Bastiaan de Galan, PhD
Phone 0243613286
Email bastiaan.degalan@radboud.nl
Status Recruiting
Phase N/A
Start date June 11, 2018
Completion date June 11, 2019

See also
  Status Clinical Trial Phase
Completed NCT03886974 - Transition to Adult Care in Type 1 Diabetes
Completed NCT05620251 - Response to BNT162b2 Vaccine in Adolescents With Type 1 Diabetes
Completed NCT03623113 - The Dietary Education Trial in Carbohydrate Counting (DIET-CARB Study in Type 1 Diabetes N/A
Recruiting NCT05078658 - Low-carbohydrate Diet in Children With Type 1 Diabetes N/A
Not yet recruiting NCT06018324 - CloudCare in the Treatment of Type 1 Diabetes in Pediatrics
Withdrawn NCT03736083 - Introducing CGM at Type 1 Diabetes Diagnosis N/A
Completed NCT03177096 - Impact of the Continuous Measurement of Blood Glucose on Insulin Pump on Child Quality of Life With Type 1 Diabetes N/A
Completed NCT04172077 - Self Efficacy Levels, Attachment Style and Resiliency of Youth With Type 1 Diabetes
Recruiting NCT04950634 - Sexual Dimorphism in Cardiovascular Autonomic Neuropathy in Patients With Type 1 Diabetes
Completed NCT04450745 - Physical Exercise in Normobaric Hypoxia and Normoxia in Type 1 Diabetic Patients N/A
Completed NCT03165786 - A Cognitive Behavioral Intervention to Reduce Fear of Hypoglycemia in Young Adults With Type 1 Diabetes N/A
Terminated NCT04028960 - IN Insulin in Type 1 Diabetes (T1D) Hypoglycemia Unawareness: Safety Only Phase Phase 2
Recruiting NCT05324488 - Diabetes Registry Graz for Biomarker Research
Completed NCT02984709 - Check It! 2.0: Positive Psychology Intervention for Adolescents With Type 1 Diabetes N/A
Completed NCT02984514 - Brown Adipose Tissue in Type 1 Diabetes N/A
Recruiting NCT05973799 - Effect of Fasting on Hypoglycemic Counterregulation in Type 1 Diabetes N/A
Recruiting NCT03311516 - New Insulin Therapy by Multiwave Bolus N/A
Completed NCT03711656 - Prediction and Prevention of Nocturnal Hypoglycemia in Persons With Type 1 Diabetes Using Machine Learning Techniques N/A
Recruiting NCT05737654 - The Effect of Exercise on Metabolic Parameters, Anthropometric Measurement Values and Quality of Life N/A
Completed NCT05044442 - HIT on Hypoglycaemic Risk in T1D N/A