Randomized, double blind, active-controlled, parallel study to analyse effects of the combination of aliskiren and valsartan on the vascular structure and function of retinal vessels - ARTS
- Conditions
- HypertensionMedDRA version: 12.1Level: LLTClassification code 10020772Term: Hypertension
- Registration Number
- EUCTR2009-017676-24-DE
- Lead Sponsor
- niversity Hospital Erlangen
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- ot Recruiting
- Sex
- All
- Target Recruitment
- 150
• Male or female aged 18 to 75 years (females of child bearing potential must be using adequate contraceptive precautions)
• Females of childbearing potential or within two years of the menopause must have a negative urine pregnancy test at enrolment visit
• Patients with mild to moderate uncomplicated essential hypertension with a trough mean sitting DBP = 90 mmHg and/or SBP = 140 mmHg or pretreated arterial hypertension
• Written informed consent
• Agreement to attend all study visits as planned in the protocol
• Agreement to perform routinely self home blood pressure measurements as well as keep a blood pressure diary throughout the study and to inform the investigator if BP exceeds cutt off criteria given in the ICF
Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range
• In the investigator’s opinion the patient can not be withdrawn from their current antihypertensive medication
• Secondary hypertension (e.g. patients with hyperaldosteronism, pheochromocytoma, renal artery stenosis, renal parenchymal disease, coarctation of the aorta, Cushing’s disease syndrome)
• Severe essential hypertension (systolic blood pressure = 180 mmHg and/or diastolic blood pressure = 110 mmHg) or treatment resistant hypertension (3 antihypertensive drugs and still SBP = 140mmHg and/or DBP = 90mmHg)
• History of hypertensive encephalopathy or intracerebral hemorhage
• Diabetes mellitus Type 1 or Type 2
• History of epilepsia (no retinal exam possible)
• Eye cataract (no retinal exam possible)
• History of the following within the last six months: myocardial infarction, unstable angina pectoris, percutaneous coronary intervention, heart failure
• Presence of significant renal, respiratory, hepatic, gastrointestinal, endocrine or metabolic, immunological, haematological or oncological, neurological and psychiatric diseases or dysfunction
• Impaired renal function as shown by estimated GFR (abbreviated MDRD formula) < 45 ml/min/1.73 m2
• Impaired hepatic function as shown by transaminases higher than three times the upper normal limit
• Known allergy or a known intolerance to any ARB or Aliskiren
• Females who are pregnant or lactating or who are not on an adequate contraception (Pearl-Index = 1 %)
• Use of any investigational drug within 28 days before study entry
• Patients previously enrolled into the study
• History of drug, medication abuse.
• Serious disorders which may limit the ability to evaluate the efficacy or safety of the test drug(s), including cerebrovascular, cardiovascular, renal, respiratory, hepatic, gastrointestinal, endocrine or metabolic, immunological, haematological or oncological, neurological and psychiatric diseases
• Subject is the investigator or any subinvestigator, research assistant, pharmacist, study coordinator, other staff or relative thereof directly involved in the conduct of the protocol
• Mental conditions rendering the subject unable to understand the nature, scope and possible consequences of the study
• Subject unlikely to comply with protocol, e.g. uncooperative attitude, inability to return for follow-up visits and unlikelihood of completing the study
• Subject who do not give written consent, that pseudonymous data will be transferred in line with the duty of documentation and the duty of notification according to § 12 and § 13 GCP-V
Study & Design
- Study Type
- Interventional clinical trial of medicinal product
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Main Objective: To investigate the combined effect of aliskiren and valsartan on vascular structure, assessed by wall to lumen ratio of retinal arterioles, in hypertensive patients. ;Secondary Objective: To investigate the combined effect of aliskiren and valsartan in hypertensive patients<br>- on vasodilatory capacity of small retinal arteries in response to Flickerlight<br>- on basal NO activity of the retinal circulation (L-NMMA-infusion)<br>- on pulse wave velocity (PWV) and pulse wave analysis (PWA) (augmentation index, central systolic pressure, central pulse pressure)<br>- on endothelium function of the large and small arteries (change of augmentation index and central pulse pressure in response to L-NMMA infusion)<br>- on albuminuria (before and after infusion of L-NMMA);Primary end point(s): Change in wall to lumen ratio of retinal arterioles after 8 weeks of double-blind treatment
- Secondary Outcome Measures
Name Time Method