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Essential Hypertension clinical trials

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NCT ID: NCT00441350 Completed - Hypertension Clinical Trials

Olmesartan/HCTZ 40/12.5 mg Combination Therapy Versus Olmesartan Medoxomil 40 mg Monotherapy in Essential Hypertension

Start date: July 2007
Phase: Phase 3
Study type: Interventional

The primary objective of this study was to assess the anti-hypertensive effect of OM/HCTZ 40/12.5 mg combination therapy compared to OM 40 mg monotherapy in lowering sitting diastolic BP in hypertensive patients after 8 weeks of double-blind treatment. The study consisted of two sequential phases of 8 weeks duration each: During the first phase, OM 40 mg monotherapy was compared with OM/HCTZ 40/12.5 mg in order to evaluate the additional benefit of OM/HCTZ 40/12.5 mg in the treatment of essential moderate to severe hypertension. During the second phase, patients whose BP proved to be insufficiently controlled by the OM 40 mg monotherapy were to start OM/HCTZ 40/12.5 mg combination therapy while patients whose BP proved to be insufficiently controlled by the OM/HCTZ 40/12.5 mg combination were to be up-titrated to the OM/HCTZ 40/25 mg combination to evaluate the additional benefit of the up-titrated combination. The study was be conducted by qualified and experienced personnel with adherence to GCP, current guidelines on the design of studies in hypertension, the applicable regulatory requirements and the ethical principles based on the Declaration of Helsinki.

NCT ID: NCT00438945 Completed - Clinical trials for Essential Hypertension

The Effect of Eprosartan on Hormones and Kidney Function in Patients With Essential Hypertension

Start date: January 2007
Phase: Phase 4
Study type: Interventional

We, the investigators at Holstebro Hospital, want to test the hypothesis that eprosartan reduces the activity of the sympathetic nervous system in patients with essential hypertension - during baseline conditions and after activation of the sympathetic nervous system.

NCT ID: NCT00437645 Completed - Clinical trials for Essential Hypertension

Efficacy and Safety of Valsartan/Amlodipine Compared to Amlodipine in Patients With Essential Hypertension

Start date: January 2007
Phase: Phase 3
Study type: Interventional

This study was designed to compare the efficacy, tolerability, and safety of the combination valsartan/amlodipine 160/5 mg versus amlodipine 10 mg in patients with essential hypertension not adequately controlled (defined as mean sitting systolic blood pressure [msSBP] ≥ 130 mmHg and ≤ 160 mmHg) on amlodipine 5 mg alone. The study evaluated both the efficacy and tolerability of the treatments by providing data that assessed blood pressure and the proportion of patients developing peripheral edema.

NCT ID: NCT00430950 Completed - Clinical trials for Essential Hypertension

Combination of Olmesartan and Hydrochlorothiazide in Essential Hypertension

Start date: February 2007
Phase: Phase 3
Study type: Interventional

The study will evaluate the blood pressure lowering effects of two different dosages of the combination of olmesartan and hydrochlorothiazide in patients with moderate or severe high blood pressure.

NCT ID: NCT00430508 Completed - Clinical trials for Essential Hypertension

Use of the Combination of Olmesartan and Hydrochlorothiazide in Essential Hypertension

Start date: February 2007
Phase: Phase 3
Study type: Interventional

The study will evaluate the blood pressure lowering effects of two different dosages of the combination of olmesartan and hydrochlorothiazide in patients with moderate or severe high blood pressure.

NCT ID: NCT00425373 Completed - Clinical trials for Essential Hypertension

Efficacy and Safety of Valsartan and Amlodipine in Patients With Essential Hypertension

Start date: November 2006
Phase: Phase 2/Phase 3
Study type: Interventional

The purpose of this study is to evaluate the safety and efficacy of fixed combination of valsartan (40 mg and 80 mg) and amlodipine (2.5 mg and 5 mg), valsartan and amlodipine alone, and placebo in reducing blood pressure. The study will investigate the dose response relationship for the combinations, monotherapies, and placebo.

NCT ID: NCT00424541 Completed - Hypertension Clinical Trials

Pharmacokinetic and Pharmacodynamic Profiles of Aliskiren in Japanese Patients With Mild to Moderate Essential Hypertension

Start date: January 2007
Phase: Phase 1
Study type: Interventional

This study will evaluate the pharmacokinetic profile, the effect of rennin inhibition and the relationship among pharmacokinetics, renin-angiotensin system (RAS) biomarkers, and blood pressure lowering effects of oral doses of SPP100 in Japanese patients with mild to moderate essential hypertension. Safety will also be evaluated.

NCT ID: NCT00415038 Completed - Clinical trials for Essential Hypertension

Efficacy of Rostafuroxin in the Treatment of Essential Hypertension

Start date: February 2005
Phase: Phase 2
Study type: Interventional

The purpose of this study is to verify the efficacy of Rostafuroxin in the treatment of essential hypertension and to determine the best effective dose to be administered in the general hypertensive population and in a subset of this population in which genetic patterns could be involved in the etiology of essential hypertension.

NCT ID: NCT00408512 Completed - Clinical trials for Essential Hypertension

Pharmacosurveillance and Pharmacogenetics of First-line Diuretics in Hypertension: The StayOnDiur Study

stayondiur
Start date: December 2006
Phase: Phase 4
Study type: Interventional

Background: The use of thiazide diuretics in the treatment of hypertension (HT) is widely considered a first line treatment, given the efficacy and low cost of this class of drugs. This indication is not unanimous, because thiazides can cause metabolic alterations and other side effects increasing cardiac and cerebrovascular risk, which reduce compliance to treatment and increase health care system cost. However, large intervention trials in HT suggest that the improvement in cardiovascular prognosis of HT patients depends more on follow-up procedures than on type of drug used. Furthermore, the investigators have documented improved compliance to antihypertensive therapy by implementing cooperation between general practitioners (GPs) and HT specialists. Objectives: In a multicenter, open label randomized study the investigators will compare the persistence on therapy of thiazides versus other treatments, as a first line antihypertensive therapy, in a clinical setting characterized by a strict cooperation between GPs and HT specialist. The investigators will also analyse candidate genes with impact on drug-induced metabolic alterations to elucidate the pathophysiology of these phenomena. Methods: 260 GPs will recruit 2600 hypertensive patients with indication to pharmacological treatment and randomise them to starting treatment with chlortalidone (12.5 to 25 mg daily, 1300 pts) or a GP decided single drug (excluding thiazides) or combination therapy at highest tolerated dose. In both groups any other class of antihypertensive drugs can be added over time in order to achieve blood pressure control (<140/90 mmHg). Follow-up will last 2 years. Blood sample and urine analyses, carotid and cardiac ultrasound will be performed at baseline and scheduled time points. Genotyping will be performed by sequencing. Data will be collected and stored using a web based centralized Case Report Form (CRF) Expected results: Results will highlight whether a follow-up strategy based on tight cooperation between GPs and HT specialists can allow the use of thiazides as first line antihypertensive therapy without any negative effect on persistence, adherence and efficacy of the treatment. These data can be used to reduce total burden of the Health Care System in HT by replacing more expensive drugs with diuretics in the 50% of hypertensive patients, who do not receive this class of drugs. Furthermore, the pharmacogenetic approach may clarify the pathophysiological mechanisms of drug-induced metabolic side effects

NCT ID: NCT00343551 Completed - Clinical trials for Essential Hypertension

Efficacy and Safety of Aliskiren 300mg Compared to Irbesartan 300mg and Ramipril 10 mg in the Setting of a Missed Dose for Patients With Essential Hypertension.

Start date: May 2006
Phase: Phase 3
Study type: Interventional

The purpose of this study is to investigate the efficacy (blood pressure lowering effect) and safety of aliskiren given to hypertensive patients after a missed dose.