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Effect of Beta Blocker Treatment on Endothelial Function in Patients With Type 2 Diabetes or Chronic Heart Failure

This study has been completed.
Danish Heart Foundation
Information provided by:
Bispebjerg Hospital Identifier:
First received: July 5, 2007
Last updated: October 12, 2007
Last verified: July 2007

The aim of this study is to evaluate the effect of the two different beta blockers metoprolol and carvedilol on endothelial function in patients with either type two diabetes or chronic heart failure.

Hypothesis: 1* Carvedilol compared to metoprolol has a favourable effect on endothelial function.

2* Carvedilol compared to metoprolol has a favourable effect on insulin stimulated endothelial function.

The study is conducted as an open parallel group study. Endothelial function and insulin stimulated endothelial function was evaluated before and after a two months treatment period with either of the two beta blockers.

Condition Intervention Phase
Endothelial Function
Beta Blocker
Drug: Treatment with either metoprolol or carvedilol
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention

Resource links provided by NLM:

Further study details as provided by Bispebjerg Hospital:

Primary Outcome Measures:
  • Endothelial function and insulin stimulated endothelial function [ Time Frame: 2 months ]

Secondary Outcome Measures:
  • Insulin stimulated glucose uptake [ Time Frame: 2 months ]

Enrollment: 50
Study Start Date: February 2004
Study Completion Date: October 2007
Detailed Description:

Endothelial function is deteriorated in patients with type 2 diabetes and in patients with chronic heart failure. Treatment with carvedilol improves survival in patients with chronic heart failure compared to treatment with metoprolol. Carvedilol improves metabolic glucose control in patients with diabetes compared to metoprolol.Carvedilol compared to metoprolol also decreases the number of patients with new onset diabetes among patients with chronic heart failure. The mechanism behind these findings has not been fully understood.

The purpose of this study is to investigate if carvedilol compared to metoprolol has a favourable effect on endothelial function and insulin stimulated endothelial function, in groups of patients with either diabetes or chronic heart failure.


Ages Eligible for Study:   40 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Type 2 diabetes
  • Chronic heart failure

Exclusion Criteria:

  • For patients with type 2 diabetes:

    * Vascular complications.

  • For patients with chronic heart failure:

    • Severe uncontrolled heart failure.
    • Untreated severe hypertension, hypotension.
    • Bradycardia.
    • Known intolerance to beta blocker treatment.
    • Pregnancy,
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Please refer to this study by its identifier: NCT00497003

Department of Cardiology, University Hospital of Copenhagen, Bispebjerg
Copenhagen, Denmark, 2400
Sponsors and Collaborators
Bispebjerg Hospital
Danish Heart Foundation
Principal Investigator: Christian Torp-Pedersen, MD, DSc Department of Cardiology, Bispebjerg Hospital
  More Information

Publications automatically indexed to this study by Identifier (NCT Number): Identifier: NCT00497003     History of Changes
Other Study ID Numbers: KF 02-071/03
Study First Received: July 5, 2007
Last Updated: October 12, 2007

Keywords provided by Bispebjerg Hospital:
Endothelial function
Beta blocker
Type 2 diabetes
Chronic heart failure

Additional relevant MeSH terms:
Heart Failure
Heart Diseases
Cardiovascular Diseases
Adrenergic beta-Antagonists
Adrenergic Antagonists
Adrenergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Antihypertensive Agents
Vasodilator Agents
Adrenergic alpha-1 Receptor Antagonists
Adrenergic alpha-Antagonists
Anti-Arrhythmia Agents
Autonomic Agents
Peripheral Nervous System Agents
Adrenergic beta-1 Receptor Antagonists processed this record on May 25, 2017