Active clinical trials for "Hypertension"

The study team is proposing a single arm intervention to test the effect of an electronic intervention on medication use among individuals with a prescription for hypertension/high blood pressure. The investigator proposes that technology like text messaging, email, web applications and mobile apps with proven, nurse intervention scripts, will lead to significant, cost-effective improvements in hypertension medication use.

The purpose of this study is to test the hypothesis that endothelin plays a role in the pathogenesis of supine hypertension in pure autonomic failure by increasing vascular resistance. To gauge its contribution to blood pressure regulation, pure autonomic failure and multiple system atrophy patients with supine hypertension will undergo a medication testing with the endothelin blocker, BQ123. We will compare the hemodynamic effects between PAF and MSA patients. Our primary endpoint will be the decrease in blood pressure during the administration of this compound.

The proposed study is a physiologic investigation of the effects of testosterone on the natriuretic peptide system. The hypotheses of the study are that testosterone administration will decrease natriuretic peptide levels and salt excretion. The entire protocol is 8 weeks in duration.

This study will examine the effects of add-on sildenafil to bosentan monotherapy in patients with Pulmonary Arterial Hypertension. Patients on bosentan monotherapy will be followed every 6 months to assess if they have met the pre-defined treatment goals. If a patient fails to achieve these treatment goals or fails to maintain them, sildenafil will be added to their existing bosentan monotherapy. Patients will be assessed 6 months after start of combination therapy for changes in 6MWT, Borg dyspnea scale, WHO functional class, quality of life.

The purpose of this study is to demonstrate the safety and effectiveness of the study drug Nebivolol, in people who suffer with high blood pressure with Chronic Obstructive Pulmonary Disease (COPD).

The goal of this study is to compare the effects of Potassium Magnesium Citrate to Potassium Chloride on blood pressure among patients with pre-hypertension or mild hypertension. We will also test whether Potassium Magnesium Citrate increases excretion of large amounts of sodium in the urine.

The purpose of this research study is to compare the effect of Netarsudil and Timolol on eye pressure and blood vessels of the back of the eye.

This blinded cross-over clinical trial will enroll participants with mild stage 1 hypertension to evaluate whether urinary extracellular transcript abundance predicts response to an mineralocorticoid receptor (MR) antagonist, eplerenone. Eligible participants will have a 2 week wash-in period followed by 4 weeks of treatment with placebo or eplerenone. There will be a 2 week wash out period from study medications and then participants will take the other drug (placebo or eplerenone) for 4 weeks. In addition, participants will also provide urine and blood samples during the trial, have physical assessments, and be monitored for safety.

The purpose of this study is to determine if higher-than usual doses of daily folic acid has an effect on the rate of gestational diabetes mellitus (GDM) or gestational hypertension in pregnant women while determining status of folic acid, vitamin B12, homocysteine and vitamin D in pregnancy.

Both Cosopt® and Xalatan® plus Timoptic® will significantly lower IOP, however only Cosopt® will demonstrate positive hemodynamic effects. The clinical significance of this will be investigated by examining the ophthalmic and short posterior ciliary arteries to determine the blood supply to the optic nerve head, the site of damage in glaucoma