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CLINICAL TRIALS PROFILE FOR LISINOPRIL AND HYDROCHLOROTHIAZIDE

Clinical Trials for Lisinopril And Hydrochlorothiazide

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Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT00007592	Hypertension Screening and Treatment Program	Completed	VA Office of Research and Development	N/A	1989-06-01	Hypertension is one of the most common medical problems in the United States and in the VA health care system. It has been well-documented that hypertension can be effectively treated. However, there remain important unresolved clinical questions in the area of antihypertensive treatment. For example, how much is mortality affected by visit compliance, blood pressure control and type of antihypertensive agent? Or, are some regimens associated with more morbidity than others? Or, are there inexpensive regimens that are as effective as more expensive regimens? The amount of data that is available from this demonstration project (currently 6,100 patients) will help address these questions. The answers to these questions should result in better care for veterans with hypertension.
NCT00171535	Efficacy and Safety of Valsartan/Amlodipine Combination in Patients With Severe Hypertension	Completed	Novartis	Phase 3	2004-10-01	This study will assess the effectiveness and safety of different combination antihypertensive treatments in patients with severe hypertension
NCT00408512	Pharmacosurveillance and Pharmacogenetics of First-line Diuretics in Hypertension: The StayOnDiur Study	Completed	Agenzia Italiana del Farmaco	Phase 4	2006-12-01	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
NCT00408512	Pharmacosurveillance and Pharmacogenetics of First-line Diuretics in Hypertension: The StayOnDiur Study	Completed	Federico II University	Phase 4	2006-12-01	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
NCT00459056	The Vascular Effects of Carvedilol Controlled Release (CR) in Abdominally Obese Hypertensive Patients	Completed	GlaxoSmithKline	Phase 3	2007-04-01	The purpose of this study is to compare the effects of two different combination therapies for high blood pressure on vascular health.
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