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ET-blockade and Exercise Induced Blood Flow in T2DM

This study has been completed.
Information provided by (Responsible Party):
Radboud University Identifier:
First received: January 28, 2013
Last updated: May 3, 2016
Last verified: May 2016
The purpose of this study is to establish the effect of ET blockade on the acute exercise induced blood flow and endothelial function 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.

Condition Intervention Phase
Type 2 Diabetes Mellitus Drug: Bosentan Drug: Placebo Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Basic Science
Official Title: Effect of a Dual ET-blocker on Exercise Induced Blood Flow and Endothelial Function in T2DM

Resource links provided by NLM:

Further study details as provided by Radboud University:

Primary Outcome Measures:
  • exercise induced blood flow [ Time Frame: 2 hours ]

Secondary Outcome Measures:
  • exercise induced Flow Mediated Dilation [ Time Frame: 2 hours ]

Enrollment: 22
Study Start Date: May 2011
Study Completion Date: December 2013
Primary Completion Date: December 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Bosentan
Single dose of Bosentan (125 mg)
Drug: Bosentan
Other Names:
  • Tracleer
  • actelion pharmaceuticals
  • 125 mg oral dose
Placebo Comparator: Placebo
Single dose of placebo (125 mg)
Drug: Placebo
Other Names:
  • actelion pharmaceuticals
  • 125 mg oral dose


Ages Eligible for Study:   40 Years to 65 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

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
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Please refer to this study by its identifier: NCT01779596

Radboud University Nijmegen Medical Centre
Nijmegen, Gelderland, Netherlands, 6525 EX
Sponsors and Collaborators
Radboud University
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Radboud University Identifier: NCT01779596     History of Changes
Other Study ID Numbers: ET-EX-ACUTE
Study First Received: January 28, 2013
Last Updated: May 3, 2016

Keywords provided by Radboud University:
endothelial function
blood flow

Additional relevant MeSH terms:
Diabetes Mellitus
Diabetes Mellitus, Type 2
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Antihypertensive Agents
Endothelin Receptor Antagonists
Molecular Mechanisms of Pharmacological Action processed this record on September 19, 2017