Cognitive Function & Electrocardiogram (ECG) During Hypoglycemia &

Status Completed

Clinical Trial Summary

Hypothesis: Treating patients with type 1 diabetes with a certain antihypertensive drug preserve cerebral function during hypoglycaemia.

Background: Studies have found that certain genetic variations leaves a subject with type 1 diabetes more prone to hypoglycaemia. It it thought to be a decline in cognition during hypoglycaemia that leaves them at risk of severe hypoglycaemia. The idea is tha when you suppress the genetic phenotype with a well known antihypertensive drug an improvement in cognition will occur and this will remove the patients tendency to severe hypoglycaemia.

Methods: The investigators want to explore whether the cerebral function is improved during hypoglycaemia in subjects with type 1 diabetes and the above mentioned genetic variation when treated with the antihypertensive drug Candesartan.

Clinical Trial Description

We will include 25 type 1 diabetic patients from our outpatient clinic. They are already genotyped from another trial.

Each patient goes through two cycles with hyperinsulinemic glucose clamp induced hypoglycemia. The study is double blinded, randomised and placebocontrolled so the patients receive both Candesartan and placebo but in different cycles.

In each cycle patients will receive either Candesartan or placebo for 7 days. After 8 days patients undergo a hypoglycaemic clamp during which primary and secondary endpoints will be measured.

In the hyperinsulinemic hypoglycaemic clamp the patients will undergo an adjustment period towards euglycaemia. A period of approximately 1 hour of euglycemia, an hour of hypoglycemia and a period of recovery towards euglycemia. In each of these glycemic states primary and secondary outcomes will be measured. ;

Study Design

Allocation: Randomized, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Prevention

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01116180
Study type	Interventional
Source	Hillerod Hospital, Denmark
Contact
Status	Completed
Phase	N/A
Start date	April 2010
Completion date	February 2013

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Cognitive Function and Electrocardiogram (ECG) During Hypoglycemia and Blockade of the Renin-angiotensin System

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms