The Influence of Acute Hyperglycaemia on Brain in T1D

May 8, 2018 updated by: Tadej Battelino, University of Ljubljana, Faculty of Medicine

The Influence of Acute Hyperglycaemia on Oxidative Stress, Inflammation, Neurochemical Profile in Brain and Executive Functions of Adolescents With Type 1 Diabetes Mellitus

The study is going to include 20 adolescents, 5-10 years after onset of T1D, aged 12-20 years, on insulin pump. The participants are going to have MRI of the head in euglycaemic and hyperglycaemic state. During both MRI, the participants are going to preform Flanker test, Tower of London test and Spatial memory test. The investigators are going to evaluate the response of inflammation markers and oxidative stress marekers in blood during hypreglycaemia.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The study is going to include 20 patientswith T1D. The group of patients is going to be homogeneous. The inclusion criteria are going to be: duration of T1D approximately 5 - 10 years, age between 10 and 24 years, without associated clinical complications of T1D, similar value of HbA1c and BMI within the normal range (depending on the percentile for age and sex), treatment with an insulin pump. Only the patients who are going to give written consent to participate in the form "Declaration of conscious and free consent" are going to be included.

All selected clinical data to determine the phenotypic characteristics of the patient will be obtained from available medical records or. at their regular outpatient reading.

After 12-hour fasting overnight, the patients will undergo 2h hyperglycaemic clamp.

During hyperglycemia a sample of venous blood for the evaluation of oxidative stress, inflammatory response and the expression of non-coding RNA is going to be drawn.

Subjects will have 1H-MRS in hyperglycaemic and euglycaemic state and evaluation of executive function (using psychological tests) is going to be preformed. For 1H-MRS, the MRI of the head in order to obtain anatomical data is going to be preformed at first .

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Slovenia
      • Ljubljana, Slovenia, 1000
        • Medical Faculty - University of Ljubljana

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

10 years to 18 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • T1D on insulin pump, no diabetic complication, normal BMI and blood pressure

Exclusion Criteria:

-

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: hyperglycaemic clamp
Other: hyperglycaemic clamp
2h hyperglyceamic clamp

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
prolonged reaction time
Time Frame: during the MRI in hyperglycaemia
during the MRI in hyperglycaemia

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Ljubljana, Faculty of Medicine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 13, 2017

Primary Completion (Actual)

March 30, 2018

Study Completion (Actual)

March 30, 2018

Study Registration Dates

First Submitted

June 13, 2017

First Submitted That Met QC Criteria

June 13, 2017

First Posted (Actual)

June 15, 2017

Study Record Updates

Last Update Posted (Actual)

May 9, 2018

Last Update Submitted That Met QC Criteria

May 8, 2018

Last Verified

May 1, 2018

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Hyperglycemia-01

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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