Active clinical trials for "Hypertension"

Pulmonary Hypertension (PH) is a severe disease with a bad prognosis. However, thanks to extensive research in this field, there are more and better treatment options that allow patients to participate in recreational activities at moderate altitude or bring up the question of air-travel. Still very few is known about the effects hypoxic conditions have on PH patients. The aim of this study is to investigate the effects of hypoxia in comparison to normoxia and hyperoxia on pulmonary hemodynamics in patients with pulmonary hypertension during routine right heart catheterisation. We aim to get insight into the pathophysiology of pulmonary hemodynamics under hypoxic conditions in comparison to normoxia and hyperoxia in patients with pulmonary arterial and chronic thromboembolic pulmonary hypertension compared with control patients, that are scheduled for right heart catheterisation due to dyspnea but have no PH.

Chronic kidney disease (CKD) and hypertension are two closely related common chronic diseases that have serious implications to human health. Hypertension is a major cause for progression of renal disease and a risk factor for cardiovascular disease (CVD). Control of Blood Pressure (BP) to target is now considered to be the main goal in the treatment of patients with CKD. In clinical practice, it is difficult for CKD patients with hypertension to achieve systolic BP (SBP) or diastolic BP (DBP) goal; oftentimes, calcium channel blocker (CCB) class of drugs, for example, nifedipine gastrointestinal therapeutic system (GITS), is used in such patients. Previous data have demonstrated nifedipine to be having a significant dose-response relationship; that is, nifedipine 60 mg provided better BP reduction than 30 mg. However, there are limited studies that have evaluated the efficacy and tolerability of nifedipine GITS 60 mg in Chinese CKD patients with hypertension. Hereby, the objective of this study was to evaluate the effectiveness and tolerability of nifedipine GITS 60 mg treatment in a large cohort of CKD patients with uncontrolled hypertension.

Study to evaluate real-world safety, effectiveness and appropriate use of Micatrio® Combination Tablets treatment in patients with hypertension

Measure pulse wave velocity stability in relation to time of day, day of the week, physical activity, sleep quality, stress levels and blood pressure.

The investigators will study sedentary behavior (SED) across pregnancy in young women. We hypothesize that SED will increase across pregnancy and that higher SED will be related to worse cardiovascular health, specifically elevated blood pressure (BP) and excessive gestational weight gain (GWG). Pregnancy is a biologically relevant period during which CVD risk factors may develop or worsen, contributing to future CVD. Pregnant women also spend most of their day sedentary, which is defined as too much sitting as distinct from too little exercise. SED has emerged as a risk factor, independent from moderate-to-vigorous physical activity (e.g., exercise), for elevated BP, obesity, diabetes, CVD, and mortality in general populations, but there are no recommendations for SED during pregnancy and few studies evaluate SED across pregnancy. These few studies are limited by small sample size, lack of repeated measures across trimesters, suboptimal SED assessment methodology, and a failure to link with clinical outcomes (e.g., BP, GWG). The investigators will address these gaps in a prospective study that will measure SED in 130 pregnant women across three trimesters using state-of-the-art objective activity monitors capable of measuring min-by-min activity by both intensity and posture. We will also measure BP and GWG during each trimester and, further, will link to and abstract all prenatal clinic weights and BPs, glucose screening results, gestational diabetes, preeclampsia, and adverse birth outcomes. Lastly, with the long-term goal of identifying women at high risk of SED during pregnancy and designing effective interventions, the investigators will efficiently evaluate correlates and determinants of SED which have never been studied during pregnancy.

Effectiveness of fasting or fasting-mimicking diet has been proved an effective approach to treat metabolic and autoimmune diseases in mice. However, clinical trials performing prolonged fasting with more than 7 days have not been reported. Investigators conduct an open label, phase I/II clinical trial to evaluate the safety and effectiveness of the 21-day fasting-like diet in the treatment of metabolic and autoimmune diseases.

Over the past decade, advancements in therapies available for pulmonary hypertension (PH) have increased life expectancy for those who qualify and receive treatment. Yet, prognostication of these patients has remained a clinical dilemma. The application of the REVEAL registry predictive algorithm provides information about estimated 1-year survival but since invasive measurements from a right heart catheterization cannot easily be repeated, it is not feasible to continually use this longitudinally to assess the disease burden. Simple tests such as BNP has been shown to be very clinically relevant in short -term and long term prognostication and seems to correspond well to the right ventricular failure. Elevated right atrial pressures, and its estimation via IVC measurements predict poor survivorship in a recent retrospective analysis. As clinical measurement of jugular venous pressure is becoming less reliable, we aim to bring point- of-care ultrasound to the outpatient setting. Point of care ultrasound is widely used in the Emergency Department and Intensive Care Unit settings. By measuring estimated right atrial pressure (eRAP) via Inferior Vena Cava (IVC) measurements at outpatient clinic visits we aim to find a correlation with the existing and widely used B-type Natriuretic Peptide (BNP), that is collected at each visit as a part of regular care. These measurements can be followed longitudinally and may aid in prognostication. Data will be collected over the period of 1 year at clinic visits. A composite endpoint (including death, hospitalizations for PH, addition of new PH specific therapy after a stabilization period of 3 months, lung transplant or atrial septostomy) will separately be collected. At the end of the data collection period, clinical data only will be collected for a additional 2 years via phone correspondence, chart review or at regular PH clinic visits.

This study is collecting post-marketing information on the safety and effectiveness of Ventavis under the routine clinical practice for patients with PAH

Sleep apnea involves significant increases in disease and death, but its consequences in people over 65 years of age are incompletely recognized. Intraoral mandibular advancement appliances reduce the number of apneas and hypopneas. The investigators hypothesized that oral appliances provided to the elderly may prevent hypertension and other consequences of sleep apnea in large populations, at a favorable cost/benefit relationship for the public health system.

The primary objective is to evaluate the effect of the treatment with Micardis® or MicardisPlus® on blood pressure. Secondary objectives are the effect of Micardis® / MicardisPlus® on metabolic parameters (triglycerides, cholesterol, blood glucose and HbA1c) in patients with essential hypertension and diabetes mellitus