Investigation of Vascular Relaxing Effects of Candesartan and Pioglitazone.
The study is designed to test the hypothesis in healthy subjects that candesartan and pioglitazone provide additional vascular relaxing or modulating effects in addition to their blood-pressure and blood glucose level reducing ability, respectively.
|Study Design:||Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Primary Purpose: Treatment
|Official Title:||Characterization of Vascular Effects of Candesartan and Pioglitazone.|
- Vascular reactivity
- Pulse wave velocity
- Changes in Angiotensin metabolites
|Study Start Date:||October 2005|
|Estimated Study Completion Date:||September 2006|
The aim of the study is to investigate the effect of oral candesartan and/ or rosiglitazone therapy on the vascular responsiveness of different vasoactive compounds (angiotensin II, insulin, histamine and glyceroltrinitrate) in healthy subjects. Pioglitazone will be given orally (4 weeks 30mg/d, titrated to 45 mg/d for another 4 weeks). Candesartan will be given orally (4 weeks 8mg/d, titrated to 16 mg/d for another 4 weeks) as treatment. Every subject will receive intravenous stimulation with phenylephrine, angiotensin II, histamine, insulin and glyceroltrinitrate before and after an 8 weeks treatment interval with study medication or placebo. In addition, pulse wave velocity will me measured non-invasively before and after treatment.
|Institute of Clinical Pharmacology, Medical Faculty, University of Technology|
|Dresden, Germany, 01307|
|Study Chair:||Wilhelm Kirch, MD||Institute of Clinical Pharmacology|