ET-blockade and Exercise-induced Vascular Adaptations in T2DM

May 4, 2016 updated by: Radboud University Medical Center

Effect of a Dual ET(Endothelin)-Blocker on Exercise Induced Vascular Adaptations in Type 2 Diabetes Mellitus (T2DM)

The purpose of this study is to establish the effect of ET blockade on vascular adaptations during an 8-week exercise program in subjects with T2DM. We hypothesize that combining ET - blockade with exercise training leads to an acute increase of exercise induced blood flow when compared with exercise alone. We expect that this will lead to an optimization of vascular training effect in T2DM.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

19

Phase

  • Phase 4

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

  • Netherlands
    • Gelderland
      • Nijmegen, Gelderland, Netherlands, 6525 EX
        • Radboud University Nijmegen Medical Centre

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

40 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Type 2 Diabetes Mellitus (>2 years since diagnosis) OR controls

Exclusion Criteria:

  • <40 years of age
  • >65 years of age
  • smoking
  • cardiovascular disease
  • diabetes related manifest vascular complications
  • Type 1 Diabetes Mellitus
  • use of Glibenclamide
  • use of HIV drugs
  • use of calcineurin inhibitors
  • use of drugs that interfere with CYP3A4 and CYP2C19

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: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Bosentan + Exercise
2x/day 62.5 mg Bosentan for 4 weeks alongside 3x/week supervised exercise 2x/day 125 mg Bosentan for 4 weeks alongside 3x/week supervised exercise
Drug: Bosentan
Other Names:
  • Tracleer
  • actelion pharmaceuticals
Behavioral: Exercise
Supervised exercise training program of 8 weeks, for 3x/week
Other Names:
  • Supervised Exercise Training Program
Placebo Comparator: Placebo + Exercise
2x/day 62.5 mg Placebo for 4 weeks alongside 3x/week supervised exercise 2x/day 125 mg Placebo for 4 weeks alongside 3x/week supervised exercise
Drug: Placebo
Other Names:
  • actelion pharmaceuticals
Behavioral: Exercise
Supervised exercise training program of 8 weeks, for 3x/week
Other Names:
  • Supervised Exercise Training Program
Other: Exercise
3x/week supervised exercise for 8 weeks
Behavioral: Exercise
Supervised exercise training program of 8 weeks, for 3x/week
Other Names:
  • Supervised Exercise Training Program

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Flow mediated dilation
Time Frame: 8 weeks
8 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
Conduit Artery Dilator Capacity
Time Frame: 8 weeks
8 weeks
Intima-Media Thickness
Time Frame: 8 weeks
8 weeks
Maximal Oxygen Uptake
Time Frame: 8 weeks
8 weeks

Collaborators and Investigators

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

Sponsor

Radboud University Medical Center

Collaborators

Actelion

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, 2010

Primary Completion (Actual)

December 1, 2013

Study Completion (Actual)

December 1, 2013

Study Registration Dates

First Submitted

January 28, 2013

First Submitted That Met QC Criteria

January 28, 2013

First Posted (Estimate)

January 30, 2013

Study Record Updates

Last Update Posted (Estimate)

May 5, 2016

Last Update Submitted That Met QC Criteria

May 4, 2016

Last Verified

May 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ET-EX-TRAINING

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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