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Hypertension, Resistant to Conventional Therapy clinical trials

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NCT ID: NCT03730519 Not yet recruiting - Clinical trials for Hypertension, Resistant to Conventional Therapy

UK Registry for Baroreflex Activation Therapy

Start date: November 2018
Phase: N/A
Study type: Interventional

This study is a post-marketing open label single arm, single centre clinical trial of electrical carotid sinus stimulation with the Barostim Neo device to target sub-optimally controlled arterial hypertension or highly variable blood pressure in patients for whom no alternative therapies are available.

NCT ID: NCT03324386 Completed - Clinical trials for Hypertension, Resistant to Conventional Therapy

The Use of Educational Technology in Improving Adherence Therapy

Start date: December 18, 2013
Phase: N/A
Study type: Interventional

Few studies show the benefits of educational technologies a support for the control of chronic diseases. The approach known as 'embracement' adopts relational strategies or soft technologies which promote bonding and may impact therapy adherence and quality of life in hypertensive patients.Objectives:To assess the impact of the embracement approach on therapy adherence, quality of life, and the white coat effect in hypertensive outpatients followed in a specialized clinic. This approach may be associated or not with the use of educational technology in a virtual learning environment(VLE) for distance learning (DL) and with use the educational technology in Blended E-learning (E-BLENDED)

NCT ID: NCT03046680 Recruiting - Clinical trials for Hypertension, Resistant to Conventional Therapy

Health Coaching Based Treatment Versus Usual Treatment of Systemic Arterial Hypertension and Comorbidities

Start date: December 1, 2016
Phase: N/A
Study type: Interventional

Hypertension is a multifactorial clinical condition, it may not cause symptoms and its diagnosis is often delayed. And even when it is diagnosed early, some patients cannot manage an adequate blood pressure. There are several hypotheses for the non-control of blood pressure, among them the difficulty of lifestyle change, irregular treatment with antihypertensive drugs, non-individualized treatment. Studies haven shown that tools such as multiprofessional team and hypertension leagues are important strategies to obtain a better outcome in the hypertension treatment, but new approaches are still necessary. Health Coaching is an individualized form of follow-up, promoting better adherence, better nutrition, smoking cessation, regular physical exercise and regular use of drugs, thus reducing cardiovascular mortality.

NCT ID: NCT02837445 Recruiting - Bradycardia Clinical Trials

Moderato System: A Double-Blind Randomized Trial

Start date: July 12, 2016
Phase: N/A
Study type: Interventional

The purpose of this double blind randomized study is the evaluation of the safety and efficacy of the Moderato System. The Moderato pacemaker is indicated for patients who require a dual chamber pacemaker and also have hypertension, in order to reduce their blood pressure.

NCT ID: NCT02832973 Recruiting - Clinical trials for Hypertension Resistant to Conventional Therapy

Sequential Nephron Blockade vs. Dual Blockade Renin-angiotensin System + Bisoprolol in Resistant Arterial Hypertension

Start date: September 2015
Phase: Phase 4
Study type: Interventional

A randomized clinical trial comparing sequential nephron blockage (SNB) with dual blockade of the renin-angiotensin system (RAAS) plus bisoprolol (DBB) in the treatment of resistant arterial hypertension (RH) was designed to investigate the importance of the SNB and the contribution of its volume component versus DBB and the importance of the serum renin in maintaining BP levels. This randomized trial with two treatment arms could help tailor therapy by identifying a more effective choice to control hypertension whether by acting on the control of volume or sodium balance, or by acting on the effects of the RAAS on the kidney. Methods - Participants: 80 patients undergoing treatment for RH with losartan (100-200 mg), chlorthalidone (25 mg), and amlodipine (5 mg) will be randomly divided into two groups after applying inclusion and exclusion criteria. Group 1: Sequential nephron blockade (SNB Group) n = 40 Group 2: Dual blockade of the RAAS plus bisoprolol (DBB Group) n = 40 Intervention: SNB consists in a progressive increase in sodium depletion. After the administration of a thiazide diuretic (chlorthalidone) and aldosterone receptor blocker, low doses of furosemide are administered and subsequently amiloride is prescribed to enhance the natriuretic effect. The dual blockade of the RAAS plus bisoprolol is used to increase the effect of angiotensin receptor 1 blockers (ARBs). Therapy then requires sequentially adding an angiotensin converting enzyme (ACE) inhibitor to reduce the levels of angiotensin (Ang) II resulting from blockage of the Ang II receptor and then to administer a beta-blocker to decrease the elevated renin secretion due to both the ACE inhibitors and ARBs Objective: This study, which compares two antihypertensive treatment regimens in patients with RH, has the following objectives: to demonstrate the therapeutic efficacy of SNB against DBB in RH patients, and to assess the side effects and adherence to treatment over 20 weeks of treatment. Enrollment: The eligibility criteria will follow those shown in the flowchart for the diagnosis of RH of the First Brazilian Position on RH. Patients will be excluded if they have: chronic renal failure, atrial fibrillation/atrioventricular block, contraindication to the drugs that will be used, refusal or failure to follow the regimen and secondary hypertension. Follow-up: Patients will be analyzed in five visits at intervals of 28 days for 20 weeks

NCT ID: NCT02690909 Recruiting - Clinical trials for Hypertension Resistant to Conventional Therapy

A Study to Evaluate Safety and Efficacy of the Redy™ Renal Denervation System in the Treatment of Patients With Uncontrolled Hypertension

Start date: April 2016
Phase: N/A
Study type: Interventional

The ReDy™ System (Renal Dynamics) is a renal denervation device incorporating a variety of ablation features and technical improvements over previously designed systems into a single product. It is intended to treat uncontrolled (drug-resistant) hypertension by RF ablation of the sympathetic nerve network surrounding the renal arteries. This study will be carried out to validate the safety and the efficacy of the ReDy™ Renal Denervation device and to demonstrate that it performs according to its intended use, i.e. the treatment of patients with uncontrolled hypertension.

NCT ID: NCT02667912 Active, not recruiting - Clinical trials for Hypertension, Resistant to Conventional Therapy

Distal Renal Denervation

Start date: January 2013
Phase: Phase 1/Phase 2
Study type: Interventional

Objective of this study is to evaluate whether a distal mode of endovascular renal denervation with the treatment performed primarily in segmental branches of renal artery is more effective than conventional mode of the intervention with the treatment equally distributed within its main trunk for the treatment of drug-resistant hypertension.

NCT ID: NCT02653222 Terminated - Clinical trials for Kidney Failure, Chronic

Chemical Renal Ethanol Sympatholysis Under CT Guidance Use for the Control of Therapy-Resistant Hypertension

Start date: February 2016
Phase: Phase 2
Study type: Interventional

In this study the investigators are going to assess the feasibility of this innovate technique of renal sympathetic denervation by translumbar access under ct-guidance. To limit the potential impact on the kidney, the investigators chose a population of chronic renal failure patients on dialysis or renal transplant (with native kidneys still present) and having resistant treatment hypertension despite antihypertensive combination therapy well conducted. The investigators expect to obtain a decrease of the blood pressure at the 24-hours ambulatory blood pressure monitoring (ABPM) one month after the sympathetic denervation.

NCT ID: NCT02623036 Recruiting - Clinical trials for Hypertension, Resistant to Conventional Therapy

The Use of Ambulatory Blood Pressure Monitors to Assess Angiotensin Converting Enzyme Inhibitors

Start date: November 2015
Phase: Phase 1
Study type: Interventional

The purpose of this study is to use ambulatory blood pressure monitors to investigate whether enalapril is superior to lisinopril in managing nocturnal hypertension in patients with resistant hypertension currently treated with daytime angiotensin converting enzyme inhibitors.

NCT ID: NCT02587533 Completed - Clinical trials for Hypertension, Resistant to Conventional Therapy

Peripheral Chemoreflex/Arterial Baroreflex Interaction in Patients With Electrical Carotid Sinus Stimulation

Start date: November 2015
Phase: N/A
Study type: Interventional

Peripheral chemoreceptors and baroreceptors are located in close proximity in the carotid artery wall at the level of the carotid bifurcation. Baroreceptor stimulation lowers sympathetic activity and blood pressure. In contrast, chemoreceptor stimulation raises sympathetic activity and blood pressure. Thus, beneficial effects of electrical carotid sinus stimulation on blood pressure could be diminished by chemoreceptor overactivity and/or concomitant chemoreceptor activation through the device. Therefore, our study will assess baroreflex/chemoreflex interactions in patients with resistant hypertension equipped with carotid sinus stimulators. The study will inform us of potential additional anti-hypertensive benefits of simultaneous chemoreceptor denervation during electrode placement. Furthermore, the results may provide information about suitable electrode design to spare co-activation of peripheral chemoreceptors. Taken together, the study will help develop strategies for improving responder rate and efficacy of carotid sinus stimulators in patients with resistant hypertension.