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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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NCT02222077
This study aims to investigate in adolescents and young adults: * the 24h diurnal variation of ambulatory central blood pressure * the association of central compared to peripheral blood pressure with indices of asymptomatic target-organ damage
NCT01042158
This will be a 36-week, single group, open label study assessing the effects of Tadalafil plus Ambrisentan combination therapy in patients with pulmonary arterial hypertension associated with the scleroderma spectrum of disease (PAH-SSD). Standard outcome measures such as six-minute walk distance (6MWD), New York heart Association (NYHA) classification, and hemodynamic measurements will be assessed, as well as novel functional measures of RV-PV function including the transthoracic echocardiogram parameter tricuspid annular plane systolic ejection (TAPSE), contrast-enhanced cardiac MRI and heart rate variability assessed by Holter monitoring. This design (excluding a placebo arm) was selected for ethical concerns and to provide optimal efficiency and active therapy to all study subjects. It also allows for comparisons between the two monotherapies and with combination therapy.
NCT03276598
Blood pressure variation and the risk of essential hypertension have an important genetic component. In most cases susceptibility to essential hypertension is likely determined by the action of more than one gene. The identification of genes causing susceptibility to hypertension is important, since it would give new tools for the diagnosis and enable better etiological classification and specific treatment of the disease. The innovation of this study is to use the response to antihypertensive therapy as an intermediate phenotype. In the study, each subject uses one of four antihypertensive drugs, each as a monotherapy in a rotational fashion, for 28 days in a randomized order. The antihypertensive drugs to be tested include a thiazide diuretic, a beta-adrenergic antagonist, an angiotensin-II receptor antagonist and a calcium channel blocker. The drugs that are selected for the study are "typical" representatives of their groups and long-acting, and the dosages are sufficient but well tolerable.