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Browse 3,009 clinical trials for hypertension. Find studies that match your criteria and connect with research centers.
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NCT01295216
Nearly half of the adult population in Latin American urban settings has abnormally high blood pressure. Although half of these subjects with high blood pressure are still in the pre-hypertensive stage (systolic blood pressure values in the 120-139 mmHg range or diastolic blood pressure in the 80-89 mmHg range), the rate of progression to hypertension is high (10-20% per year), according to studies done in other settings. The main objective of this proposal is to evaluate the effectiveness of an affordable and sustainable primary health care intervention to reduce blood pressure and prevent progression from pre-hypertensive status to hypertension in individuals at poor urban clinics in Argentina, Guatemala, and Peru. Our primary hypotheses are that pre-hypertensive subjects who receive mHealth (mobile health) support for 12 months (intervention group) will have lower blood pressure compared to individuals who receive the usual primary health care (control group); and that pre-hypertensive subjects will maintain lower blood pressure six months after receiving mHealth support. The investigators will determine the effects of an intervention using mHealth technology, including short message services (SMS) and one-to-one telephone calls, to promote lifestyle modification focused on reducing blood pressure among participants. The intervention also aims to help participants become better informed, motivated, and encouraged to practice self-management of their own health; to improve patient satisfaction levels; provide tailored targeted interventions; and to improve patient-provider relationships. The proposal is designed as a proof-of-concept intervention in three Latin American countries that encompass a wide range of environments and health care settings. A total of 212 subjects (30-60 years old) per country will be recruited in primary health clinics and randomized to study groups. Blood pressure, anthropometry, and behavioral risk factors (physical activity, diet, stress, alcohol and tobacco use) will be measured at baseline and at months 6 and 12 during the intervention, and six months after the end of the intervention. The investigators will also evaluate feasibility, acceptability, cost-effectiveness, and process implementation of the intervention.
NCT01541189
To evaluate efficacy and safety of valsartan 160mg in Chinese hypertensive patients.
NCT01839786
The purpose of this study is to evaluate the lung Doppler signals in patients with pulmonary hypertension that undergo (prospective arm) or underwent (retrospective arm) right heart catheterization (RHC) in order to assess whether this non-invasive tool could be used in pulmonary hypertension diagnosis and monitoring.
NCT01884246
Individuals in Appalachian Kentucky are vulnerable to cardiovascular disease (CVD) by virtue of having high rates of multiple CVD risk factors. There is a critical need to develop and test CVD risk reducing interventions that are appropriate and effective in Appalachia. In the absence of such interventions, the dramatic CVD disparities seen in this area will continue to rise. Lifestyle interventions reduce CVD risk by 44%. The investigators and others have demonstrated that lifestyle change is most effective when patients are given the tools to engage in effective self-care, and that interventions individualized to patients' specific needs and barriers are more effective than interventions that are not. The central hypothesis is that to be successful in Appalachia, CVD risk reducing interventions must focus on patient-centered lifestyle change that increase individuals' abilities to engage in self-care, must be culturally appropriate, and must have components that overcome barriers faced by individuals living in Appalachia. The investigators propose a randomized, controlled comparative effectiveness trial with 300 individuals from Appalachian Kentucky who do not have a primary care provider and who are at risk for CVD by virtue of having two or more modifiable CVD risk factors. The investigators will compare (1) a patient-centered, culturally appropriate, self-care CVD risk reduction intervention (HeartHealth) designed to improve multiple CVD risk factors while overcoming barriers to success with (2) referral of patients to a primary care provider for management of their CVD risk factors. The investigators propose the following specific aims to be tested at 4 months and 1 year after baseline. To compare the short and long-term impact of the interventions on: 1\) the risk factor selected by patients (i.e., tobacco use, blood pressure, lipid profile, hemoglobin-A1c (HgA1c) for diabetics, body mass index, waist circumference, depressive symptoms, or physical activity level); 2) all of the CVD risk factors of each patient; 3) quality of life; 4) patient and healthcare provider satisfaction; 5) desirability and adoptability by assessing adherence to recommended CVD risk reduction measures, and retention of recruited individuals. The investigators hypothesize that in comparison to the referral strategy, the multifaceted patient-centered, self-care intervention will engender more favorable outcomes across all measures.
NCT01240512
This is a randomized, double-blind, multicenter, 6-month follow-up trial of low (400 IU/day) versus high (4000 IU/day) dose vitamin D supplementation in individuals with pre- and early stage 1 hypertension and vitamin D deficiency. A total of 530 participants (265 participants per treatment arm) will be randomized between 3 sites. Approximately 2,250 participants will be screened between the 3 sites. Vital signs, 24-hour ambulatory blood pressure monitoring, clinical laboratory safety tests and adverse event assessments will be performed to evaluate the effectiveness of the two doses of vitamin D on blood pressure. Blood samples will be stored for future biomarker assessments. The total duration of the study is anticipated to be 18 months, assuming a 12 month enrollment period.
NCT01251146
This is a Phase 4, prospective, multi-centric and randomized controlled study to compare the effects of bisoprolol and atenolol on resting heart rate (RHR) and sympathetic nervous system's (SNS) activity in subjects with essential hypertension.
NCT02617238
Randomised two parallel groups multicenter study using a Prospective Randomised Open Blinded End-point design (PROBE), aiming at comparing the efficacy of a therapeutic strategy targeting the normalisation of arterial stiffness for reducing cardiovascular (CV) and renal events, in comparison with a classical therapeutic strategy implementing the European Society of Hypertension-European Society of Cardiology (ESH-ESC) Guidelines, in patients with essential hypertension and medium-to-very high CV risk.
NCT02915315
Essential hypertension is a complex trait which results from interaction between environmental factors and genetic factors. Our study aimed to detect the differential expression of LncRNAs and epigenetic changes such as DNA methylation associated with salt sensitive hypertension in human based on a chronic salt loading study conducted in Lantian county, China. Firstly, a chronic salt loading study will be conducted in a Chinese population to differentiate salt-sensitive and salt-resistant individuals. Second, LncRNAs and DNA methylation Chip analysis will be performed using samples collected from salt-sensitive and salt resistant individual, and the results will be analyzed by modern bioinformatics methods to seek for differential genetic markers. In addition, the investigators also try to examine the effects of chronic salt loading on BP, ambulatory BP, microalbuminuria and baPWV and other biochemical indexes. This project had great significance to reveal molecular genetics mechanism in the development of salt, salt-sensitive and hypertension.
NCT02773888
Invasive intracranial pressure (ICP) monitoring is highly effective, but involves risks. HS-1000 measures ICP non-invasively by assessing the acoustic properties of the patient's head. HS-1000 device, a proprietary non-invasive ICP monitor, is expected to safely and accurately monitor ICP with minimal discomfort to patients, and provide information about normal or elevated ICP levels to the physicians.
NCT02355444
Cardiovascular disease (CVD) is the most common cause of death in Ireland, accounting for 33% of all deaths. Hypertension or elevated blood pressure, is also a significant health problem, however, it is one of the major controllable risk factors associated with CVD. While increased consumption of fruit and vegetables is associated with reduced risk of CVD, evidence is accumulating that consumption of berry fruits in particular, may promote cardiovascular health. Blackberries have a favourable nutritional profile, in that they are rich in dietary fibre, vitamins C, K and folate but low in dietary fat and kilocalories. In addition, blackberries are a rich source of antioxidants, and contain numerous phytochemicals including polyphenols. The aim of this study is to investigate the potential beneficial effects of blackberry consumption on cardiovascular health, in particular, effects on blood pressure.
NCT00351130
Essential hypertension is a widespread disease which affects one out of every three adults in the industrialized world. It contributes to cardiovascular disease development, a major and well established risk factor. A patient non compliant to drug therapy is recognized as one of the primary reasons for inadequate blood pressure control.
NCT03063697
The purpose of this study is to Evaluate the Safety of DILATREND SR Cap. in Korean Patients with Essential hypertension, Chronic stable angina and Congestive heart failure for 52 weeks.
NCT00394745
The purpose of this study is to evaluate potential effects of valsartan on lipid subfractions and other parameters in lipid metabolism in patients with essential hypertension and metabolic syndrome.
NCT02003469
Background and Rationale Cardiovascular disease is highly prevalent in the kidney transplant population, accounting for approximately 40% of all deaths and significant morbidity. The morbidity and mortality experienced by kidney transplant recipient's results from an excess of pre-transplant risk factors that are exacerbated by kidney transplantation along with the development of novel risk factors. Hypertension (HTN) is the most consistent cardiovascuar disease risk factor in transplant recipients.. A large number of studies have been done in the general population comparing ambulatory blood pressure monitoring (ABPM) to casual, office based and home measures of blood pressure (BP). The results have clearly demonstrated that ABPM gives a more accurate representation of BP and arguably should be used as part of routine patient care. ABPM has been shown to reveal patients both with white-coat and with masked HTN, nocturnal HTN and lack of nocturnal dipping. Ambulatory BP measures afford us a non-invasive, highly accurate way to evaluate and treat kidney transplant recipients. Live kidney donors (LKD) have significantly expanded the supply of critical organs. Of paramount importance of course has always been donor safety. As a result, candidates are known to be healthy at the time of donation. Ambulatory blood pressure monitoring allows a unique opportunity to examine the effects of live kidney donation on the blood pressure profiles of LKD. Methods Study Design: Prospective, 5-year, single center study of ABPM, cardiovascular and graft outcomes in incident and prevalent live kidney donors, kidney and kidney-pancreas transplant candidates and recipients.
NCT02099513
This study develops and pilots the initial interface of our mobile health platform that will allow for intra-individual tailoring and personalization of health interventions. This will allow for just-in-time interventions that adapt both the content and timing, not just initially, but also over time based upon prior outcome data, responses to an intervention, current environmental and social context, activity level, location, time, and an individual's psychophysiological state.1,2 Aim 1: To develop the initial interface of the mobile health platform that will allow patients to report and receive data representing multiple health domains including blood pressure, pO2 (pulse oximeter), values, weight, physical activity, calories burned, sleep, and self-report survey measures such as pain and fatigue. Aim 2: To assess feasibility of the mobile health platform to receive and deliver data representing multiple health domains over 1 month through a single-case study design (N=6).3 Aim 3: To develop an algorithm using the diet data collected in Aim 1 that will facilitate adaptive work by providing patients with automated real time feedback on their progress. Aim 4: To develop an algorithm using the diet data collected in Aim 1 that will that will facilitate adaptive approaches by alerting clinicians on the progress of their patients.
NCT00311740
The purpose of this study is to compare the effect of the fixed combination of valsartan+hydrochlorothiazide (HCTZ) on blood pressure reduction with valsartan and HCTZ alone and whether the combination treatments are safe and well tolerated. The study aims to establish a dose response relationship for both monotherapies and the combinations. This study is being conducted in Japan.
NCT02926495
Hypertension is a serious public health issue, affecting approximately 30% of adults. Hypertension greatly contributes to the risk for heart disease and stroke, both among the top three leading causes of death in the Americas, Europe, and Asia. While most treated individuals with hypertension are controlled on medication, diet and exercise, an estimated 12% are resistant to conventional medical intervention. Alternative effective treatments are still needed for this hypertensive patient population to mitigate the risk and incidence of mortality and morbidity. This original Investigational Device Application is for a study intended to confirm the safety and efficacy of bilateral subcutaneous median nerve stimulation using the eCoin system to treat resistant hypertension. The eCoin device delivers electrical stimulation pulses to the median nerve from a small coin sized device placed under the skin of the distal anterior forearm. The implant delivers a weekly 30 minute treatment based on previous studies showing a long lasting and cumulative effect. The safety and efficacy of eCoin therapy has previously been demonstrated in a multinational, randomized, double-blind, sham-controlled study in New Zealand, Taiwan and Canada. This trial is a multi-center, prospective, double-blind, 1:1 randomized sham-controlled study of the safety and effectiveness of eCoin median nerve neuromodulation in subjects with drug-treatment resistant hypertension. The eCoin neuromodulation device will be implanted subcutaneously in the right and left forearms of patients with uncontrolled hypertension despite treatment with 3 or more antihypertensive agents. After a 4 week implant healing period, subjects will be 1:1 randomized into either a treatment or control group. One half of the subjects have their devices activated (treatment) and the other half undergo a sham activation (control) to maintain participant blinding to their treatment allocation. During the six months post-randomization, the eCoin is ON in the treatment group and OFF in the control group.
NCT00139555
Left ventricular hypertrophy (LVH) increases the risk of cardiovascular morbidity and mortality in patients with high blood pressure, compared to those without LVH. Reduction of left ventricular mass (LVM) with antihypertensive agents is associated with improved clinical outcome. This study will evaluate the effects of amlodipine/benazepril in reducing LVM in patients with high risk hypertension.
NCT01255436
Objective: To test the primary hypothesis that SMS text messages delivered to patients via mobile phone can improve blood pressure within 12 weeks compared to usual care Design: Parallel group, randomized, controlled trial; the patient is the unit of randomization Setting: General Medicine Outpatient Continuity Clinic of the Philippine General Hospital and Private Outpatient Clinics near the Philippine General Hospital Patients: Ambulatory men and women aged 19 years and older (N=700) with a diagnosis of essential hypertension, on maintenance blood pressure-lowering medications, who have daily access to a mobile phone in the household and know or live with someone who knows how to retrieve, read and reply to text messages using a mobile phone Intervention: SMS text messages delivered twice a week for 12 weeks, which aim to 1) provide information regarding hypertension; 2) remind patients to take their medications. Main Outcome Measure: The primary outcomes are the mean change in systolic and diastolic blood pressures at the end of 12 weeks. The secondary outcomes are improvement in blood pressure control rate and medication adherence.
NCT00964847
The purpose of this study is to compare the effects of 24 weeks of either a blood pressure education and walking program versus a yoga exercise program versus the combined intervention of blood pressure education and yoga on reducing mild to moderate high blood pressure in pre-hypertension and stage 1 hypertension subjects.
