Insulin Sensitivity of the Human CNS System: fMRI Study With Intranasal Insulin Application

December 2, 2015 updated by: andreas fritsche, University Hospital Tuebingen

Insulinsensitivität Des Menschlichen Zentralnervensystems: Kernspintomographische Untersuchung Mit Intranasaler Gabe Von Insulin

The purpose of the study is to investigate whether insulin sensitivity and insulin resistance of the human brain is comparable in all insulin sensitive parts of the brain and whether correlates to other phenotypic information (i.e. whole body insulin sensitivity, BMI, age) of the study participants.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

48

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

  • Germany
      • Tuebingen, Germany, 72074
        • University of Tuebingen

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

18 years to 60 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Normal routine blood works
  • for women: negative pregnancy test
  • healthy

Exclusion Criteria:

  • Type 2 diabetes
  • pregnancy
  • acute or chronic diseases
  • Pacemakers
  • Artificial heart valves
  • Metal prostheses
  • Implanted magnetic metal parts (screws, ...)
  • Metal fragments
  • Braces
  • insulin pumps
  • Tattoos
  • claustrophobia
  • reduced temperature sensation and / or increased sensitivity to warming of the body
  • Ear disease or an increased sensitivity to loud noises

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: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Human Insulin
Nasal spray
Drug: Human Insulin
160 U of insulin
Placebo Comparator: Placebo solution
Nasal spray
Drug: Placebo
Insulin dilution medium without insulin

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Insulin effect on regional brain activity assessed by fMRI
Time Frame: Change from Baseline to 15 minutes and 60 minutes post spray application
Change from Baseline to 15 minutes and 60 minutes post spray application

Collaborators and Investigators

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

Sponsor

University Hospital Tuebingen

Investigators

  • Principal Investigator: Andreas Fritsche, MD, Universitat Tubingen

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

February 1, 2013

Primary Completion (Actual)

April 1, 2014

Study Completion (Actual)

April 1, 2014

Study Registration Dates

First Submitted

February 18, 2013

First Submitted That Met QC Criteria

February 20, 2013

First Posted (Estimate)

February 22, 2013

Study Record Updates

Last Update Posted (Estimate)

December 3, 2015

Last Update Submitted That Met QC Criteria

December 2, 2015

Last Verified

December 1, 2015

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Eudra-CT: 2006-002244-29
  • 17/2008AMG1 (Other Identifier: Ethik-Kommission an der Medizinischen Fakultät der Eberhard-Karls-Universität und am Universitätsklinikum Tübingen)

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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