Influence of Brain Insulin Sensitivity on Peripheral Insulin Sensitivity

December 20, 2013 updated by: andreas fritsche, University Hospital Tuebingen
The researchers will investigate if brain insulin action influences peripheral insulin sensitivity in healthy humans.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

10

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, Internal medicine IV

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 35 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • BMI < 28 kg/m2
  • normal HbA1c
  • healthy volunteers

Exclusion Criteria:

  • Heparin induced thrombocytopenia (HIT)
  • metal implants
  • cardial diseases
  • anemia
  • patients taking any kind of drugs

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
Experimental: insulin nasal spray
160 Units of human insulin as nasal spray
Drug: human insulin as nasal spray
Placebo Comparator: Placebo nasal spray
Nasalspray containing placebo solution
Drug: Placebo

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Insulin sensitivity as measured by clamp
Time Frame: 45 minutes to 120 minutes post nasal spray
We will measure insulin sensitivity by hyperinsulinemic euglycemic clamp before and after nasal spray application. We will compare the post-spray insulin sensitivity between the two condition (insulin nasal spray vs placebo nasal spray). Furthermore, we will compare insulin sensitivity before and after nasal insulin application.
45 minutes to 120 minutes post nasal spray

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Autonomous nervous system activity
Time Frame: 45 to 120 minutes post spray
Activity of the autonomous nervous system will be estimated by heart rate variability in ECG. We will compare the post-spray autonomous nervous system activity between the two condition (insulin nasal spray vs placebo nasal spray). Furthermore, we will compare autonomous nervous system activity before and after nasal insulin application.
45 to 120 minutes post spray

Collaborators and Investigators

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

Sponsor

University Hospital Tuebingen

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

April 1, 2013

Primary Completion (Actual)

November 1, 2013

Study Registration Dates

First Submitted

April 28, 2013

First Submitted That Met QC Criteria

May 3, 2013

First Posted (Estimate)

May 6, 2013

Study Record Updates

Last Update Posted (Estimate)

December 23, 2013

Last Update Submitted That Met QC Criteria

December 20, 2013

Last Verified

December 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SFB 997 A01 WP7

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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