Active clinical trials for "Heart Failure"

The purpose of this study is to determine the safety and efficacy of intravenous administration of intermittent doses of levosimendan (infusions of 0,2 μg/kg/min, of levosimendan or placebo, without bolus, for 6 hours every 2 weeks) compared to placebo in ambulatory patients with advanced chronic heart failure.

Heart failure (cardiomyopathy) is a chronic condition in which the heart fails to function as a pump to move blood around the body. Aspirin has been traditionally used in heart failure because a tendency towards blood clots (including stroke and heart attack, clots in the legs and in the lungs) has been observed in this group and aspirin's mechanism of action is to prevent blood clots. This is important because two-thirds of cases of heart failure are caused by a blood clot in the coronary artery resulting in a heart attack, and aspirin is given to reduce the chances of further heart attacks. However aspirin was introduced before clinical trials as the investigators know them now were run. Systematic review of the trials of aspirin in heart failure has shown that its use does not increase survival, and there is no evidence to recommend its routine use. Another important finding was that use of aspirin may reduce the beneficial effects of ACE inhibitors which do have a mortality benefit, and that aspirin was associated with an increase in hospitalisation for heart failure compared to other drugs which prevent clots or placebo. The investigators propose that the use of aspirin in heart failure that is not caused by heart attacks ("non-ischaemic cardiomyopathy") is unnecessary and could be stopped. The importance of finding evidence to cease unproven medications in heart failure cannot be understated. Patients with heart failure take an average of six prescription medications each day. Each medication has side effects and the interactions of all the drugs together are unknown. Aspirin itself is a drug which frequently has side effects of increased risk of bleeding, gastrointestinal ulceration, as well as kidney impairment. In this study, the investigators plan to withdraw aspirin from patients with stable non-ischaemic heart failure in a closely monitored environment and watch for the effect of this on heart failure.

After the encouraging results of 6 months of Growth Hormone Replacement Therapy in Patients With Chronic Heart Failure and Coexisting Growth Hormone Deficiency (NCT00591760) the investigators wanted to collect data about the long-term efficacy and safety of this kind of therapy.

The purpose of this study is to evaluate the efficacy and safety of L-carnitine injection in treatment of Chinese patients with heart failure. A prospective, multicenter, randomized, double-blind, parallel, placebo-controlled clinical study was performed. Treatment period: 7 days, follow-up: 1 month

Evaluation the safety and efficacy of C3BS-CQR-1 by comparing the overall response to standard of care and C3BS-CQR-1 relative to standard of care and a sham procedure.

The purpose of the present study is to evaluate the effects of a blockade of the vasopressin system and central hemodynamic system in heart failure (HF) patients during physical exercise. The significance of the vasopressin system during physical exercise is unclear. If vasopressin is a significant regulator of exercise hemodynamics in HF, strategies to intervene against activation of the V1A-receptor might be expected to improve HF symptoms and possibly outcome. The potential effects of the central hemodynamic system will be evaluated with a Swan-Ganz catheter. Echocardiography will be performed at rest and during submaximal working capacity before and during the infusion of a vasopressin receptor antagonist (conivaptan) or placebo. Cardiac output will be measured by thermodilution. The exercise test will be performed at 50 % of VO2 max and hemodynamic and echocardiographic measurements will be collected. The exercise test will be performed on a supine multistage bicycle.

The purpose of this clinical investigation is to evaluate the efficacy and safety of the CVRx Barostim Neo System in the treatment of patients with heart failure.

The main objective is to test the effect of prolonged therapy (24 weeks) with isosorbide dinitrate ± hydralazine on arterial wave reflections (primary endpoint). Secondary endpoints include left ventricular (LV) mass, fibrosis and diastolic function) and exercise capacity (assessed via the 6-minute walk test) in patients with Heart Failure and Preserved Ejection Fraction (HFPEF). We will also test the hypothesis that the reduction in arterial wave reflections induced by vasoactive therapy will correlate with the improvement in exercise capacity, LV mass, fibrosis and diastolic function. Finally, we will assess whether the hemodynamic response to an acute dose of sublingual nitroglycerin (NTG) can predict the sustained changes in the reflected wave and other hemodynamic parameters in response to chronic vasodilator therapy.

The purpose of this study is to evaluate the feasibility, safety and effects in inflammatory response of the therapy with a probiotic agent, the yeast Saccharomyces boulardii (SB), in chronic heart failure patients.

Although anticholinesterase reversal agents have been used in combination with anticholinergic drugs for over half a century, it has been suggested that they should be used with caution in patients with underlying cardiovascular disease. As sugammadex has no endogenous targets, it is unlikely to cause any adverse cardiovascular effects. This selective relaxant binding agent is specifically designed to encapsulate rocuronium, which can, therefore, promptly restore neuromuscular function regardless of any levels of NMB as the dose is increased. Some reports, however, suggest that sugammadex may have increased time to effect in some patient populations like the elderly, patients in intensive care and renal failure patients. A less dynamic circulation and increased transfer time to the effector site in these subjects are likely explanations for this effect. The present trial was designed to assess the safety and efficacy of sugammadex 2.0 mg kg-1 for the reversal of rocuronium-induced NMB in patients with heart failure.