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Hypertension clinical trials

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NCT ID: NCT03436550 Recruiting - Portal Hypertension Clinical Trials

Assessment of Portal Hypertension With Multiparametric MRI

Start date: December 12, 2017
Phase: N/A
Study type: Observational

The purpose of this study is to determine whether new multiparametric magnetic resonance imaging (MRI) methods (including diffusion-weighted MRI, dynamic contrast-enhanced MRI, MR elastography and phase-contrast imaging) can be useful in assessing liver damage and degree of portal hypertension (a complication of advanced liver fibrosis and cirrhosis) secondary to chronic liver disease, compared to ultrasound measurement of liver stiffness [acoustic radiation force impulse (ARFI) ultrasound] and routine blood tests. MRI uses magnetic fields to look at soft tissues in the body. This study will ultimately help to determine whether these methods will be useful in identifying liver disease and their complications that cannot be well-understood using current liver MRI techniques.

NCT ID: NCT03424317 Recruiting - Clinical trials for Resistant Hypertension

Therapeutic Effect of Sodium Intake Reduction in Treatment Resistant Hypertension

Start date: January 1, 2018
Phase: N/A
Study type: Interventional

The aim of this study was to evaluate the therapeutic effect of sodium intake reduction by education in patients with resistant hypertension. The study was designed to maximize the compliance to antihypertensive agents and use optimal doses of antihypertensive agents including diuretics for 2 months before randomization. Patients will be assigned randomly to receiving (1) education of sodium intake reduction and exercise, or (2) education of exercise alone. Education of sodium intake reduction will be blinded to patients, and education of exercise will be provided to both group to blind the subjects. Daytime ambulatory blood pressure is adopted for diagnosis of resistant hypertension to avoid white-coat effect.

NCT ID: NCT03419975 Recruiting - Ocular Hypertension Clinical Trials

A Multi-center, Randomized, Blinded Evaluator, Active Control, Parallel, Phase III Study to Evaluate the Efficacy and Safety of TJO-002 in POAG or Ocular Hypertension Patients

Start date: April 26, 2016
Phase: Phase 3
Study type: Interventional

TJO-002 or Acitve Control was administered on primary open-angle glaucoma or ocular hypertension patients for 12 weeks. This clinical trial study has hypothesize TJO-002 administration groups are not inferior to Active control administration groups.

NCT ID: NCT03406975 Recruiting - Obesity Clinical Trials

Multicenter ESG Trial (MERIT Trial)

Start date: December 20, 2017
Phase: N/A
Study type: Interventional

Endoscopic Sleeve Gastroplasty (ESG) is an endoscopic minimally invasive weight loss procedure where a commercially available, FDA approved, full-thickness endoscopic suturing device (Overstitch; Apollo Endosurgery, Austin, TX) is used to reduce the stomach volume by 80% through the creation of a restrictive endoscopic sleeve. This is accomplished by a series of endolumenally placed full-thickness sutures through the gastric wall, extending from the antrum to the gastroesophageal junction. Up to 200 participants at 8 locations in the United States will participate in this study. The ESG procedure has been performed clinically for 3 years in the United States. The investigators are completing this study to compare how effective the ESG is for achieving long-term weight loss when compared to lifestyle modification only, as well as to evaluate the long-term safety and durability of the procedure and its impact on quality of life. Results of this research may help support having this procedure covered by health insurance plans for future patients.

NCT ID: NCT03402191 Recruiting - Thalassemia Clinical Trials

L-arginine Versus Sildenafil in Children With Beta Thalassemia Associated With Pulmonary Hypertension

Start date: July 2016
Phase: Phase 4
Study type: Interventional

This study compares L-arginine Versus Sildenafil as treatment for pulmonary hypertension in Children with Beta Thalassemia

NCT ID: NCT03399604 Recruiting - Clinical trials for Primary Pulmonary Hypertension

Investigation of the Safety and Pharmacology of Dry Powder Inhalation of Treprostinil

Start date: January 2, 2018
Phase: Phase 3
Study type: Interventional

The primary objective of this study is to evaluate the long-term safety and tolerability of LIQ861, a dry powder formulation of treprostinil, in patients with Pulmonary Arterial Hypertension (PAH). A secondary objective of this study is to evaluate the comparative bioavailability of treprostinil between two formulations of inhaled therapy.

NCT ID: NCT03398785 Recruiting - Hypertension Clinical Trials

Adrenal Artery Ablation Treats Primary Aldosteronism

Start date: October 1, 2017
Phase: Phase 3
Study type: Interventional

Primary aldosteronism (PA) is one of the most common cause of endocrine and resistant hypertension. Current studies have shown that the activation of the renin-angiotensin-aldosterone system (RAAS) and the increased sympathetic nerve activity in the central or local tissue are the key mechanisms of high blood pressure and its organ damages. The classical method for diagnosis of primary aldosteronism depends on the detection of peripheral venous blood aldosterone level, which is incapable of accurate positioning diagnosis. On the other hand, the current guidelines recommend that surgery and aldosterone receptor inhibitors were the only treatment for primary aldosteronism. However, only about 35% of aldosterone tumors and a small part of unilateral adrenal hyperplasia can be treated by surgery. More than 60% of idiopathic aldosteronism and bilateral adrenal hyperplasia need long-term drug therapy. However, long-term aldosterone inhibitor treatment may also cause hyperkalemia, male breast hyperplasia, female hirsutism and other adverse reactions. Therefore, the investigators proposed that endovascular chemical partial ablation of the adrenal gland can lower the aldosterone level, reduce the blood pressure and recover the potassium metabolism balance. In order to confirm the above effects, the investigators conduct an open, prospective, positive controlled study in patients with primary aldosteronism patients (including aldosterone, idiopathic aldosteronism and adrenal hyperplasia). The effects on blood pressure, blood electrolytes, adrenal hormones, metabolic indexes, target organ damages were observed to explore the efficacy and safety of the endovascular ablation of the adrenal gland in the treatment of primary aldosteronism.

NCT ID: NCT03385733 Recruiting - Clinical trials for Pulmonary Hypertension

Inspiratory Muscle Training in Pulmonary Hypertension

Start date: October 10, 2017
Phase: N/A
Study type: Interventional

The aim of this study is to investigate the effective of inspiratory muscle training on respiratory function, exercise capacity, physical activity and quality of life.

NCT ID: NCT03378596 Recruiting - Hypertension Clinical Trials

Impact of Citrulline and Arginine Supplementation on the Post-exercise Hypotension (PEH)

Start date: January 2, 2018
Phase: N/A
Study type: Interventional

Post-exercise hypotension (PEH) is a established phenomenon as one of the non-pharmacological ways of reducing blood pressure, producing important impacts, particularly in hypertensive individuals. However, the factors involved in the magnitude and duration of this effect are relatively little studied. Thus, the bioavailability of vasodilatation mediators may maximize the duration and magnitude of PEH. In this sense, the objective of the present project will be to verify the impact of L-citrulline associated with L-arginine supplementation on the acute blood pressure response after an aerobic exercise session. Approximately 80 adults (40 normotensive and 40 hypertensive) will be selected. The sample will be submitted to measurements of body mass, height and resting blood pressure. After the minimum interval of 48 h, subjects will be randomly submitted to four experimental situations (exercise/L-citrulline, exercise/L-arginine, exercise/placebo, exercise/L-citrulline + L-arginine). The exercise sessions (40 min in treadmill at 60% of FCres) will be performed with a minimum interval of 48 h. After each session, the blood pressure of the sample will be recorded during 24 hours. For data analysis, blood pressure values will be plotted in average of the wakefulness and average of the sleep periods and average of the 24 hours. The comparisons will be made through the ANOVA (repeated measures), following the recommended assumptions. It is hoped that the results of this project will collaborate to the knowledge regarding non-pharmacological models aimed at the prevention and treatment of hypertension in normotensive and hypertensive patients.

NCT ID: NCT03376828 Recruiting - Hypertension Clinical Trials

The Effect of Video and Traditional Laryngoscopy on Hemodynamic Response in Hypertensive and Normotensive Patients

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

During endotracheal intubation, it is known that la laryngoscopy has significant effects, such as tachycardia and blood pressure increase, which may be harmful, especially in those with cardiovascular disease. Different studies comparing laryngeal stimulation and there resulting hemodynamic response made with various intubation devices are available in the literature. The investigators planned to work with the hypothesis that endotracheal intubation with videolaryngoscopy would have less hemodynamic response traditional (Macintosh) laryngoscopy and the use of videolaryngoscopy would result in wider vision with less laryngeal stimulation.