Active clinical trials for "Heart Failure"

This study will assess the effect of vildagliptin on left ventricular function in patients with type 2 diabetes and congestive heart failure (NYHA Class I-III). Effect on HbA1c and overall safety and tolerability will also be assessed.

Exposure of healthy subjects to high altitude hypoxia elicits changes in cardiovascular, respiratory and metabolic features as weel as in exercise performance similar, for some aspects, to those observed in chronic heart failure. Exposure to high altitude hypoxia represents a suitable model to assess different treatments proposed for this pathological condition. Our aim was to evaluate the impact of two different third-generation beta-blockers used in heart failure (carvedilol and nebivolol) on cardiovascular, respiratory, metabolic profile and on exercise performance at high altitude.

This protocol describes a randomized multicenter clinical trial designed to test the hypothesis that a 12-week program of high-intensity interval training (HIIT) yields larger beneficial effects in stable heart failure patients than current practice, defined as either a similar training program with the same volume of moderate continuous training (MCT) or a recommendation of regular exercise at moderate intensity at individual choice (RRE).

A 28-week, feasibility study to investigate the safety and efficiency of the Automatic Fluid Shunt in patients with chronic congestive heart failure, ascites and diuretic resistance.

Heart failure with preserved systolic function (HF-PSF, or 'diastolic heart failure') accounts for half of hospitalizations for heart failure in patients over the age of 65. Most HF-PSF patients have systemic hypertension (HTN), and characteristic HTN-induced cardiovascular changes contribute to HF-PSF. However, it is unclear why most patients with HTN never develop HF-PSF or which specific aspects of HTN predispose to HF-PSF. In the Dahl S rat, the primary animal model of HF-PSF, high dietary sodium intake suppresses the systemic renin-angiotensin-aldosterone system, but upregulates renal and cardiac renin-angiotensin-aldosterone system by inducing oxidative stress. In humans, the magnitude of blood pressure response to sodium ingestion and depletion can categorize subjects as "salt-resistant" and "salt-sensitive." Human salt sensitivity is associated with structural and loading conditions that increase the risk for HF-PSF, including HTN, ventricular hypertrophy and diastolic dysfunction, arterial stiffening, and increased plasma volume. High dietary sodium intake induces oxidative stress in salt-sensitive humans. In humans with HTN and normal ventricular systolic function that do not have heart failure, increased oxidative stress predicts impaired exercise capacity, ventricular hypertrophy, diastolic dysfunction, arterial stiffening, and vascular endothelial dysfunction. The investigators have proposed that "salt sensitivity" and the accompanying oxidative stress on the typical high-sodium Western diet may contribute to the initiation and progression of HF-PSF. In patients with HF-PSF, the investigators will relate dietary changes to biochemical and cardiovascular functional measures. The investigators will study subjects on ad-lib diet and and following three weeks of rigorous dietary modification with the Dietary Approaches to Stop Hypertension (DASH)/sodium-restricted diet (SRD). This diet is richer in natural antioxidants and lower in sodium than the usual American diet. The DASH/SRD is recommended to lower blood pressure in patients with HTN, and is particularly effective in elderly, obese, and salt-sensitive hypertensives. Dietary sodium restriction is recommended for all HF patients including those with HF-PSF. The investigators hypothesize that the DASH/SRD will have favorable effects on oxidative stress, ventricular and vascular function, and blood pressure control in patients with hypertensive HF-PSF.

The study investigates the safety and effectiveness of a 12 week endurance training program for patients with chronic heart failure

To test the hypothesis that long-term PDE5-inhibition by overexpressing the nitric oxide pathway is beneficial in chronic heart failure patients. Double-blind and placebo-controlled trial. Primary end-points: quality of life and exercise performance

The purpose of this study is to determine the effects of candesartan, once daily (QD), on the N-terminal pro-B-type Natriuretic Peptide laboratory marker in subjects with symptomatic heart failure with diastolic dysfunction.

Reduction in mitral regurgitation due to safe placement of a PTMA device in the coronary sinus.

INTRODUCTION While pharmacological treatments specifically targeted to the cardio-circulatory system have been largely investigated, scanty controlled data are available concerning the role of dietary and metabolic approaches in the management/outcome of patients with heart failure. A large scale, randomized, clinical trial is proposed to test the effects of (a) n-3 PUFA and (b) a lipid lowering agent on top of the best recommended treatments for heart failure. STUDY DESIGN The GISSI-HF is a prospective, multicenter, randomized, double blind, placebo controlled study, with randomized allocation of patients with a clinical diagnosis of heart failure to: Randomization 1 (R1): n-3 PUFA 1 g daily vs corresponding placebo; Randomization 2 (R2): rosuvastatin 10 mg daily vs corresponding placebo. OBJECTIVES OF THE STUDY PRIMARY OBJECTIVES To demonstrate that, in patients with heart failure treated at the best of recommended therapies, long term administration of (a) n-3 PUFA, (b) rosuvastatin is more effective than the corresponding placebo in the reduction of: All-cause mortality All-cause mortality or hospitalizations for cardiovascular reason OTHER END-POINT MEASURES OF EFFICACY To assess that long term administration of (a) n-3 PUFA, (b) rosuvastatin is more effective than corresponding placebo in the reduction of: Cardiovascular mortality Cardiovascular mortality or hospitalizations for any reason Sudden cardiac death Hospitalizations for any reason Hospitalizations for cardiovascular reasons Hospitalizations for congestive heart failure Myocardial infarction Stroke