Effect of Homocysteine-Lowering Therapy With Folic Acid, Vitamin B12, and Vitamin B6 on Endothelium-Dependent Vasodilatation of Forearm Resistance Vessels in Patients With Coronary Heart Disease

This study has been completed.
Sponsor:
Information provided by:
University Hospital Inselspital, Berne
ClinicalTrials.gov Identifier:
NCT00693589
First received: June 5, 2008
Last updated: June 6, 2008
Last verified: June 2008

June 5, 2008
June 6, 2008
January 2005
February 2007   (final data collection date for primary outcome measure)
Flow mediated dilatation (FMD) [ Time Frame: after 6 weeks of randomized treatment and after 6 weeks of combined treatment ] [ Designated as safety issue: No ]
Same as current
Complete list of historical versions of study NCT00693589 on ClinicalTrials.gov Archive Site
changes in biochemistry parameters [ Time Frame: after 6 weeks of randomized treatment and after 6 weeks of combined treatment ] [ Designated as safety issue: No ]
Same as current
Not Provided
Not Provided
 
Effect of Homocysteine-Lowering Therapy With Folic Acid, Vitamin B12, and Vitamin B6 on Endothelium-Dependent Vasodilatation of Forearm Resistance Vessels in Patients With Coronary Heart Disease
Effect of Homocysteine-Lowering Therapy With Folic Acid, Vitamin B12, and Vitamin B6 on Endothelium-Dependent Vasodilatation of Forearm Resistance Vessels in Patients With Coronary Heart Disease

Endothelial dysfunction is an early marker of atherosclerosis and is found in patients (pts) with coronary (CAD) and peripheral artery disease (PAD). Statin-therapy has been shown to improve endothelial function in pts with CAD or PAD by reducing LDL-cholesterol and inflammatory markers. B-group vitamin-supplements have variable been reported to have positive or neutral effects on endothelial function. Therefore, we want to compare the effect of rosuvastatin and B-group vitamin supplementation on endothelial function of the forearm resistance vessels in pts with cardiovascular disease.

Study design: 36 pts with CAD or PAD are randomly assigned to either rosuvastatin 10mg/d or vitamin supplementation with folic acid 1mg, vitamin B12 0.4mg and B6 10mg/d for 6 weeks in a double-blinded design. After 6 weeks all pts receive rosuvastatin and vitamin supplementation in combination for additional 6 weeks.

Interventional
Phase 2
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
  • Cardiovascular Disease
  • Endothelial Dysfunction
Drug: folic acid, vitamin B12 and B6 and rosuvastatin
Vitamin supplementation with folic acid 1mg/d, vitamin B12 0.4mg/d and B6 10mg/d po for 6 weeks alone vs. rosuvastatin 10mg/d for 6 weeks alone and thereafter combined treatment for 6 weeks
Other Name: Crestor
  • Active Comparator: R
    Rosuvastatin treatment for 6 weeks and after that combined treatment with rosuvastatin and vitamin supplementation for additional 6 weeks
    Intervention: Drug: folic acid, vitamin B12 and B6 and rosuvastatin
  • Active Comparator: V
    Vitamin supplementation with folic acid, vitamin B12 and B6 for 6 weeks and after that combined treatment with vitamin supplementation and rosuvastatin
    Intervention: Drug: folic acid, vitamin B12 and B6 and rosuvastatin
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
36
April 2007
February 2007   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • CAD or PAD (>50% luminal stenosis), previous myocardial infarction or bypass surgery >3 month ago
  • history of percutaneous coronary intervention (PTCA or stenting)
  • confirmed consent

Exclusion Criteria:

  • myocardial infarction or acute coronary syndrome or bypass surgery <3 month ago
  • ongoing treatment with statins
  • ongoing vitamin supplementation with folic acid and B vitamins
  • <18 years
  • active smokers
  • uncontrolled arterial hypertension
  • renal insufficiency
  • atrial fibrillation
  • liver disease
  • NYHA class >2
  • familial hypercholesterolemia
Both
18 Years and older
No
Contact information is only displayed when the study is recruiting subjects
Not Provided
 
NCT00693589
KEK-Nr. 115/03
No
Allemann, Y., MD, Cardiology, Inselspital Berne
University Hospital Inselspital, Berne
Not Provided
Study Director: Kerstin Wustmann, MD Cardiology, Inselspital, University hospital Bern
Study Chair: Yves Allemann, MD Cardiology, Inselspital, University hospital Bern
University Hospital Inselspital, Berne
June 2008

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP