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Browse 3,518 clinical trials for hypertension. Find studies that match your criteria and connect with research centers.
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NCT01528293
This is a prospective, randomized, comparative interventional human subject trial. Patients with a chronic venous ulceration of the lower extremity will be enrolled into this study. These wounds must be recalcitrant to the standard treatment regimen. There are a total of two arms in this study. One group will be randomly assigned to receive Vacuum Assisted Closure (V.A.C. or VAC) by means of the ActiV.A.C. + Compression therapy group consisting of the application of this device along with compression therapy. The other group will be randomly assigned into compression therapy only group. A total of 60 subjects will be enrolled into this 6 week study. There will be a 2 week run-in period (prior to the onset of the intervention) to ensure that the wound has not healed greater than 35% prior to intervention and randomization. Wounds that heal within the 6 week trial period will have an additional confirmatory visit 2 weeks after healing was identified. If within the 6 week intervention period the wound bed is determined to be ready for a Split Thickness Skin Graft (STSG) or Bio-engineered Alternative Tissue (BAT), the surgery or clinic application will be scheduled within 4 weeks. Subjects deemed not to be a surgical candidate, will have Bio-engineered Alternative Tissue (BAT) application in the clinic. This includes patients who are medically unstable to receive a medical clearance for surgery or otherwise not a candidate for Split Thickness Skin Graft (STSG) surgery (e.g. donor site skin is compromised). During this period between the scheduled STSG surgery or BAT application, the subjects will continue within the assigned treatment group. A confirmatory visit will also occur 2 weeks after the application of a Split Thickness Skin Graft (STSG) or Bio-engineered Alternative Tissue (BAT). Patients diagnosed with a chronic venous ulceration will be assessed for study eligibility during their initial clinical evaluation. Patients who meet the eligibility requirements will be asked to enroll into the study (see Subject Recruitment). Subjects will be asked to sign the informed consent form and receive a copy of the informed consent.
NCT02752269
According to the literature available pulmonary hypertension is present in 12 to 23% of patients suffering from Sjögren Syndrome. However epidemiological data are based on non-invasive measurements using echocardiography. Furthermore, no data are available regarding exercise hemodynamics in those patients. This study investigates pulmonary hemodynamics at rest and during exercise in patients suffering from primary and secondary Sjögren Syndrome. Patients under suspicion for pulmonary hypertension (PH) will be offered further investigations including right heart catheterization.
NCT01519635
The goal of this project is to evaluate the chronic effect (8 weeks) of RASILEZ 300mg (aliskiren) on renal tissue oxygenation in patients with stage 1-2 hypertension, and to compare the chronic effect (8 weeks) of RASILEZ 300mg (aliskiren) on renal tissue oxygenation in patients with stage 1-2 hypertension with these effects with those of ESIDREX 25mg (hydrochlorothiazide).
NCT04303871
Hypertensive disorders of pregnancy are important causes of maternal morbidity and mortality worldwide. Hypertension is one of the most commonly reported health conditions among pregnant women and complicates 5-10% of all pregnancies.(Martin et al., 2009) (Wagner et al., 2007) The measurement of central BP in hypertensive patients became more important because of its predictive value for cardiovascular events. Direct intra-arterial readings are considered to be the gold standard method for blood pressure measurement but because arterial cannulation is associated with risks, alternative non-invasive blood pressure measurements may be used. (Araghi et al., 2006) In our study, the investigator aimed to assess the accuracy of non-invasive central blood pressure by oscillometric automated device (Mobil O graph) in comparison to the invasive blood pressure measurement by arterial cannulation in patients with hypertensive disorders in pregnancy. the investigators enrolled 100 pregnant women and 10 healthy non-pregnant women as a control group, central blood pressure was measured invasively by arterial cannula and non-invasively by oscillometric automated device (Mobil O Graph). the investigatorshave found a high correlation between non-invasive central blood pressure measurements and invasively measured both systolic (r 0.968, p=0.000) and diastolic (r 0.687, p=0.000).
NCT02444689
The purpose of this study is to evaluate the effectiveness of a technology-based behavioral Healthy Lifestyle intervention on adiposity (body mass index z-score), blood pressure (mean clinic systolic BP), and heart size (LVM) in comparison to standard care.
NCT01317329
The purpose of this study is to determine the factors that are associated with improved cardiovascular function with the use of CPAP therapy on subjects diagnosed with moderate to severe obstructive sleep apnea.
NCT04295434
In the BP-CON-ESH study we are going to include and analyze treated hypertensive patients seen consecutively by the ESH Excellence Centres. Blood pressure will be measured as usually done in the office, but care will be adopted to make measurements highly standardized in all Centres. The primary goals will be to determine the global, regional and country rates of hypertension control in Europe. Other goals will be to identify global and regional factors associated with blood pressure control in different European regions. The results obtained in the BP-CON-ESH project will be used to refine treatment strategies for improvement of blood pressure control and will serve as a basis for assessing future changes and trends in Europe.
NCT01615627
The investigators will test whether hypotonic (diluted) remodulin solution causes less pain than the eutonic (undiluted) solution supplied by the manufacturer.
NCT02341664
The purpose of the Patient and Provider Assessment of Lipid Management Registry (PALM) is to gain a better understanding of physicians' cholesterol medication prescribing practices, patient and physician attitudes and beliefs related to cholesterol management, and current utilization of cholesterol-lowering therapies given the new ACC/AHA guideline recommendations. The PALM Registry hopes to allow for the design of ways to improve cholesterol management and decrease the burden of cardiovascular disease (CVD) in the US.
NCT03147573
Blood pressure measurement methods and conditions are determinants of hypertension diagnosis. The classical methods such as office blood pressure measurement (OBPM) and home blood pressure monitoring (HBPM) have significant limitations. A recent British guideline recommends systematic 24-hour ambulatory blood pressure monitoring (ABPM). However, these devices are not available at all health centers and they can only be used by one patient per day. The aim this study is to validate a new method, 1-hour blood pressure monitoring (1BPM), to diagnose the hypertension. Participants with suspected hypertension will be recruited from a population of patients seen at three primary health centers in an urban area. According to the sample size estimation, a minimum sample size of 214 participants would be needed for the study. Four diagnostic tests will be performed: OBPM at three visits, HBPM, AMPM and 1BPM. The test order for the 24-hour monitoring, and 1-hour monitoring, will be set randomly. Daytime records of ABPM will be compared to all other monitoring methods using the correlation coefficients and Bland Altman plots. The Kappa index will be used to calculate degree of agreement. The sensitivity and specificity of the methods will also be calculated.
NCT03954951
The purpose of this cluster randomized control trial is to test whether a multimodality strategy that includes an educational on-line course and performance feedback reports is effective to reduce clinical inertia in the management of hypertension in rural primary care clinics in the Dominican Republic.
NCT04286802
Hypertension is one of the most common chronic medical conditions. The concerned sequelae are the cardiovascular complications, especially acute myocardial infarction and stroke. In Thailand, the incidence of hypertension is increasing each year. Many clinical studies found that salt intake over the reference level (\>5 g/day) would result in elevated blood pressure (BP) and long-term morbidity. Dietary salt reduction campaigns were unsuccessful, in part, due to time limitation in the clinic, lacking of awareness, and the higher threshold to detect salt taste in chronic high salt ingestion. Salt meter is a device used to detect sodium content in daily food. It will facilitate monitoring and control of salt intake. The 24-hour urinary sodium excretion is an acceptable method to reflect the quantity of sodium intake. This study aimed to compare the efficacy of salt meter plus dietary education compared with education alone in terms of salt intake reduction, blood pressure, salt taste sensitivity, and vascular consequence.
NCT00673790
This study is being done to see if the blood pressure and metabolic effects of an approved drug nebivolol is comparable to that of another approved drug hydrochlorothiazide (HCTZ) and placebo in hypertensive patients.
NCT01687725
In patients with treatment resistant hypertension renal nerve ablation emerged as an effective interventional approach of treating hypertensive disease with a progressively increasing fall in blood pressure. Decreased activity of the sympathetic nervous system is one of the major underlying pathogenetic mechanism of the fall in blood pressure but the precise mechanisms that causes the fall in blood pressure in the short-term and, in particular, long-term remains elusive. The objective of the study is to understand the pathogenetic mechanisms of renal denervation beyond the reduced activity of the sympathetic nervous system. In 100 hypertensive patients most advanced technology will be applied, before and repeatedly after renal denervation, throughout the follow-up period of 1 year. Systemic activity of the renin angiotensin aldosterone system, renal perfusion (by MRI spin labeling technique), local activity of the renin angiotensin system in the kidney (urinary angiotensinogen concentrations), sodium excretion and total sodium content (23 Na-MRI technique) and vascular remodelling of small (retinal arterioles 50 - 150 µm) and large arteries (carotid - femoral pulse wave velocity and augmentation index, both measured over 24 hours) will be assessed. Identification of the pathogenetic mechanisms involved in the fall in blood pressure after renal denervation may help to identify those hypertensive patients that profit most from renal nerve ablation in terms of blood pressure reduction. The investigators propose the following hypotheses why a progressive decrease in blood pressure happens, in addition to the decreased activity of the central nervous system, after renal nerve ablation: Short term effects: A)Preservation of renal function and perfusion B)Reduction of local RAS activity in the kidney C)Exaggerated sodium excretion immediately after renal nerve ablation Long term effects: D)Decrease of total sodium content after 6 and 12 months E)Improvement of vascular wall properties after 6 and 12 months
NCT02945982
Portal hypertension is a common pathology in chronic liver disease, particularly in liver cirrhosis. Hepatitis B Virus (HBV) is one of most etiologies of liver cirrhosis in China. The basic reason for portal hypertension in HBV is the largely deposition of hepatic extracellular matrixes which causes high pressure in liver vessels. One of the most common symptoms of cirrhotic portal hypertension is gastroesophageal varices.The effective inhibition of HBV can partially stop or reverse liver fibrosis in patients with chronic Hepatitis and liver cirrhosis due to HBV and the anti-fibrotic strategy focusing on the regulation of hepatic extracellular matrix may have a great benefit. Therefore, antivirals therapy is also a basic treatment for low-grade cirrhotic portal hypertension. Fuzheng Huayu has been found to enhance the degradation of collagens in fibrotic liver and have a good action against liver fibrosis in patients with chronic hepatitis B. However, there are no high quality clinical evidences which can demonstrate if the combination of anti-viral and anti-fibrotic therapy can relieve the pressure of liver vessels and decline incidence rate and bleeding rate of gastroesophageal varices.
NCT02150616
The purpose of this study is to investigate the effect of travelling to moderate altitude and of nocturnal oxygen therapy during a stay at moderate altitude on breathing and sleep of patients with pulmonary hypertension or with interstitial lung disease.
NCT03280914
This observational study in a real-world community was designed to perform epidemiological investigation and assess effect of CPAP intervention of obstructive sleep apnea.
NCT03609294
The purpose of this study is to evaluate the pharmacokinetics and safety/tolerability when administrated fixed dose combination of Fimasartan/Linagliptin and when co-administrated Fimasartan and Linagliptin.
NCT04254042
The aim of the study is to compare the short term effect of perindopril and zofenopril in the management of hypertension and the oxydative stress in blacks hypertensive patients. PEZO-HP is a double-arm, double-blind, randomized and parallel clinical trial conducted at the Yaoundé Central Hospital.
NCT02484807
The development of disease-targeted medication for the treatment of pulmonary arterial hypertension (PAH) has significantly improved within the last years, leading to the development of 10 approved agents. Combination treatment with Endothelin-Receptor-Antagonists (ERA) and Phosphodiesterase-Type-5-Inibitors (PDE-5-Inhibitor) has become increasingly important for the treatment of PAH. In a recent press release, the results of the AMBITION study reported that an upfront combination treatment immediately after diagnosis leads to a delayed disease progression \[4\]. Thus, the question if there is a clinically relevant pharmaco-dynamic drug-drug interaction is of rising interest.
