Comparison of Phenprocoumon and Acetylsalicylic Acid (ASA)
|Valvular Calcification Coronary Calcification|
|Study Design:||Observational Model: Cohort
Time Perspective: Prospective
|Official Title:||Prospective Comparison of Phenprocoumon (Marcumar) and Acetylsalicylic Acid (ASA)With Regard to the Progress of Valvular and Coronary Calcification|
- Progression of coronary and valvular calcification confirmed by computed tomography [ Time Frame: 18 months ]
- Measurement of inhibitors of calcification and biomarkers for inflammation (blood samples), evaluation of the haemodynamic progress as well as dyastolic dysfunction (echocardiography) [ Time Frame: 18 months ]
Biospecimen Retention: Samples Without DNA
|Study Start Date:||February 2008|
|Study Completion Date:||August 2015|
|Primary Completion Date:||August 2015 (Final data collection date for primary outcome measure)|
patients with required new anticoagulation with phenprocoumon 1/2 of them with a GFR< 60 ml/min and >15 ml/min
patients with required therapy with ASS, 1/2 of them with a GFR <60 ml/min and >15 ml/min
Patients will be allocated to two groups with either
- anticoagulation with phenprocoumon (needed for at least 1 year)
- therapy with ASA
Both treatment groups should include to 50% patients with a glomerular filtration rate (GFR) < 60 ml/min and > 15 ml/min.
All patients will undergo a screening procedure with evaluation of calcium regulating proteins, echocardiography and stratified computed tomography of the heart. Medical check up's are planned after 1,3,6, 12 and 18 months.
Prior investigations concern diastolic ventricular function under long lasting therapy with phenprocoumon and the influence of long lasting therapy with phenprocoumon in patients suffering from aortic valve sclerosis.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00782743
|Department of Medicine, Division of Cardiology, Pulmonology and Vascular Medicine|
|Aachen, NRW, Germany, 52074|
|Principal Investigator:||Vincent Brandenburg, Prof.||RWTH Aachen University Departement of Cardiology, Pulmonology and Vascular Medicine|