Type 1 Diabetes
Conditions
Keywords
Insulin, Detemir, Brain, Glucose metabolism
Brief summary
The aim of this study is to test the hypothesis that subcutaneous administration of insulin detemir, as compared to insulin NPH, leads to a more pronounced effect on cerebral glucose metabolism and/or cerebral blood flow in brain regions associated with appetite regulation, to account for the reported difference in weight.
Interventions
100 IU/ml, QD, dose individually adjusted, to be used for a period of 12 weeks; in combination with insulin aspart TID
100 IU/ml, QD, dose individually adjusted, to be used for a period of 12 weeks; in combination with insulin aspart TID
Sponsors
Study design
Eligibility
Inclusion criteria
* Type 1 diabetic patients; * Diabetes duration =/\> 1 year; * HbA1c \ 7,5%;
Exclusion criteria
* Recent onset of DM; * BMI \< 18 OR \> 35 kg/m2; * T2DM; * History of major heart/renal disease; * Severe untreated proliferative retinopathy; * History of recurrent severe hypoglycaemia; * (History of) brain disorders; * Alcohol abuse,(History of) drug abuse, benzodiazepines, selective beta-blockers, oral steroids, oral anticoagulants; * Current psychiatric disease/treatment; * (history of) eating disorders; * History of severe head trauma accompanied by loss of consciousness; * Any endocrine disease not well controlled for at least 3 months; * Inability to undergo MRI; * Visual acuity \< 0.3; * Known or suspected allergy to trial product or related products
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Cerebral metabolic rate of glucose, in brain regions associated with appetite control, as determined by FDG-PET | After 12 weeks of treatment |
| Cerebral blood flow, in brain regions associated with appetite control, as determined by H2O-PET | After 12 weeks of treatment |
Secondary
| Measure | Time frame |
|---|---|
| CSF insulin concentration | After 12 weeks of treatment |
| Activity in brain regions associated with appetite control, as determined by fMRI | After 12 weeks of treatment |
| Weight change | After 12 weeks of treatment |
Countries
Netherlands