
N-Acetylcysteine and Arginine Administration in Diabetic Patients
Type 2 Diabetes MellitusHypertensionIt has been demonstrated that the nitric oxide production is reduced in type 2 diabetic patients and that cardiovascular complications represent 80% of the causes of death in these patients. As nitric oxide is able to reduce platelet aggregation, increase the relaxation of smooth muscle cells, and reduce plasminogen activator inhibitor-1 and endothelin, we hypothesized that nitric oxide deficiency is responsable for the cardiovascular disease in type 2 diabetes mellitus. Arginine and N-acetylcysteine, precursor and enhancer of the nitric oxide synthesis respectively, are able to increase nitric oxide production. Aim of the study is to evaluate the effect of arginine and N-acetylcysteine administration on arterial blood pressure and different metabolic parameters in patients with type 2 diabetes mellitus and hypertension. Subjects and methods. 24 male subjects, randomly divided in two groups, will be studied. These subjects will undergo a treatment with arginine (1200 mg once a day) plus N-acetylcysteine (600 mg twice a day) or placebo for six months. Basal and final evaluations include: general examination ABPM (ambulatory blood pressure monitoring) HbA1c, total-cholesterol, HDL-cholesterol, LDL-cholesterol, oxidized LDLs, triglycerides, reduced/oxidized glutathione ratio in red blood cells, nitrites/nitrates, asymmetrical and symmetrical dimethyl-arginine, nitrotyrosine, arginine, homocysteine, C-reactive protein, interleukin-6, tumor necrosis factor-α, intercellular and vascular-cell adhesion molecules, plasminogen activator inhibitor-1 and fibrinogen the ultrasound assessment of the intima-media thickness after endothelium-dependent flow-mediated vasodilation of the brachial artery Expected results. Increase of nitric oxide production and reduction of arterial blood pressure and oxidative parameters.

Study to Evaluate Symptoms in Patients Treated With Nebivolol or Metoprolol Extended-release (ER)...
HypertensionThe purpose of this study was to compare the tolerability of nebivolol to metoprolol ER in a general population of patients with mild to moderate hypertension receiving hydrochlorothiazide (HCTZ)

Study of Travatan and Cosopt in Primary Open-Angle Glaucoma or Ocular Hypertension
Open-angle GlaucomaOcular HypertensionTo compare the efficacy and safety in patients treated with travoprost versus dorzolamide/timolol maleate combination in patients with open-angle glaucoma or ocular hypertension

The Efficacy of Spironolactone in Patients With Resistant Hypertension
HypertensionTo determine the efficacy of the addition of spironolactone to modern blood pressure lowering treatment regimens in patients with resistant hypertension (whose blood pressure is uncontrolled despite three blood pressure lowering drugs)

Transitioning To IV Remodulin From Ventavis in Patients With PAH: Safety, Efficacy and Treatment...
HypertensionPulmonaryThe purpose of this study is to compare the effects of switching from inhaled Ventavis to intravenous Remodulin in PAH patients who are considered to be failing inhaled Ventavis therapy. This study is intended to provide information on the safe transition from Ventavis to Remodulin as well as the impact intravenous Remodulin may have on overall quality of life and treatment satisfaction compared to Ventavis.

Open-Label Extension Study of Ubenimex in Patients With Pulmonary Arterial Hypertension (WHO Group...
Pulmonary Arterial HypertensionUbenimex is being developed for the treatment of pulmonary arterial hypertension (PAH) (World Health Organization [WHO] Group 1) to improve exercise capacity and delay clinical worsening. This study is a Phase 2, open-label, extension study to evaluate long-term safety and efficacy of ubenimex in patients with PAH (WHO Group 1) who complete Study EIG-UBX-001.

Renal Denervation Therapy for Resistant Hypertension in Type 2 Diabetes Mellitus
HypertensionResistant2 moreTo demonstrate the efficacy of renal denervation therapy in treating resistant hypertension and its effect on glucose metabolism in patients with type 2 diabetes mellitus

Renal Denervation for Complicated Hypertension
HypertensionThis is an observational proof of concept study investigating the safety and effectiveness of renal denervation to lower blood pressure in people whose blood pressure is not adequately controlled due to: intolerance to antihypertensive medication inability to take antihypertensive medication due to planned pregnancy renal artery stenosis chronic kidney disease non-compliance to antihypertensive medication A total of 125 participants, 25 from each of the groups mentioned above will be recruited to the study. The duration of this study is 36 months.

EnligHTN IV Trial - Multicenter Sham-controlled RCT of Renal Denervation for Hypertension
HypertensionThe purpose of the EnligHTN IV clinical investigation is to demonstrate the safety and effectiveness of the EnligHTN™ Renal Denervation System in the treatment of subjects with drug-resistant uncontrolled hypertension.

Effects of Oral Sildenafil on Mortality in Adults With PAH
Pulmonary Arterial HypertensionThis is a blinded study in adult patients with PAH evaluating the relative effects of sildenafil on mortality when administered at the three doses (80 mg, 20 mg or 5 mg, all three times per day [TID]). In addition, the relative effects on clinical worsening and 6-minute walking distance (6MWD) will be assessed.