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Effect of Glucagon-like Peptide 1 (GLP-1) on Microvascular Myocardial Function in Patients With Type 2 Diabetes.

Phase 4
Completed
Conditions
Type 2 Diabetes
Microvascular Dysfunction
Interventions
Registration Number
NCT01931982
Lead Sponsor
Bispebjerg Hospital
Brief Summary

The purpose of the study is to determine if a GLP-1 agonist improves microvascular perfusion in the heart of patients with type 2 diabetes

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
20
Inclusion Criteria
  • Type 2 diabetes on monotherapy with metformin or sulfonylurea or combination therapy of metformin and sulfonylurea.
  • Age: 25-75 years
  • BMI>25 kg/m2
  • HbA1c 6,0-10 %
Exclusion Criteria
  • Current treatment with insulin or Dipeptidyl peptidase IV inhibitor.
  • Haemoglobin < 6.5 mmol/l
  • Documented significant stenosis of the left anterior descending artery (LAD) at coronary angiography or CT-angiography or regional dysfunction documented during dipyridamol stress-echocardiography. If stress test at baseline shows significant stenosis the patient will be excluded from the study.
  • Allergy towards victoza ® (liraglutide ), Dipyridamol, Nitroglycerin or rescue medicine: Theophyllin
  • Pregnancy
  • Severe asthma
  • Active cancer
  • Severe co-morbidity with limited life-expectancy
  • Estimated glomerular filtration rate (eGFR) <60 (measured at baseline)
  • Severe hepatic co-morbidity
  • Chronic alcohol abuse
  • Heart failure with a left ventricular ejection fraction </= 45%
  • Atrial fibrillation
  • Chronic or previous acute pancreatitis
  • Inflammatory bowel disease.

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
victozaVictozaThe study is a cross over study. Patients randomised to start with victoza are treated with victoza for 10 weeks. After a wash out period of 2 weeks they cross over to 10 weeks of no treatment
Primary Outcome Measures
NameTimeMethod
Change in coronary flow reserve (CFR)CFR is measured at baseline and after 10 weeks of intervention

CFR can be reliably assessed non-invasively by trans-thoracic Doppler flow echocardiography of the left anterior descending artery with a success rate of over 90% even in an obese population with a relative poor acoustic window. CFR is the ratio of flow during stress to during rest.

Secondary Outcome Measures
NameTimeMethod
Change in Endothelial function:Endothelial function is measured at baseline and after 10 weeks of intervention

Measurement of Peripheral Arterial Tone, with the use of the commercially available machine (Endo-PAT2000®) assesses the control of digital vascular tone by the sympathetic nervous system and nitric oxide (NO).

Trial Locations

Locations (1)

Bispebjerg Hospital

🇩🇰

Copenhagen, Capital region, Denmark

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