Active clinical trials for "Heart Failure"

Multi-center, randomized, double-blind , placebo parallel controlled, standard therapy based phase III clinical trial, to evaluate the efficacy of recombinant human neuregulin-1 on serum NT-proBNP, as well as safety in patients with chronic heart failure.

Sleep apnea syndrome is clinically defined by frequent pauses in breathing during sleep and symptoms, such as being tired. It can decrease the restfulness of sleep and decreases the level of oxygen in the blood. Sleep apnea patients suffer from daytime sleepiness, hypertension, coronary artery disease (CAD), stroke, ischemic heart disease, arrhythmias, pulmonary hypertension, heart failure, and premature death. There is significant evidence suggesting that nighttime decreases in blood oxygen levels are the primary cause of many of the abnormalities associated with this disease. Epidemiological studies have demonstrated a surprisingly high prevalence of sleep apnea. Mild sleep apnea is present in 17% of adults in the general population and moderate to severe sleep apnea is present in 5.7% of adults. Among patients with heart failure the prevalence skyrockets. Multiple studies have found the prevalence of moderate to severe sleep apnea to be anywhere from 11-53% in heart failure patients. Continuous positive airway pressure (CPAP) therapy is currently the standard of care for sleep apnea sufferers regardless of the severity of their disease. In patients without heart failure, CPAP therapy has numerous benefits and several long term studies have reported that CPAP causes less cardiovascular disease as well as a long term improvement in cardiovascular symptoms and mortality among patient with severe sleep apnea. In heart failure patients, CPAP has shown some beneficial short term effects but evidence of long term improvements in symptoms and mortality are lacking. Compliance with CPAP therapy reduces systolic blood pressure, improves cardiac function, raises oxygen levels, and increases exercise tolerance. On the other hand, CPAP has not been shown to affect survival or number of hospitalizations in heart failure patients. Moreover, compliance with CPAP is often poor and many people cannot tolerate it. This further limits the therapeutic effectiveness of this intervention. The purpose of this study is to assess whether nocturnal oxygen administration via nasal cannula alone can improve outcomes in congestive heart failure patients with moderate to severe sleep apnea. The effects of nocturnal oxygen administration will be assessed by using biomarkers of heart stress and markers of whole body inflammation.

The purpose of the research is to determine if patients have fewer Heart Failure (HF) events after receiving Aquapheresis (AQ) therapy compared to intravenous (IV) diuretics up to 90 days of discharge from the hospital. Heart Failure events are defined as returning to the hospital, clinic or emergency department (ED) for treatment of HF symptoms.

The prevalence of renal dysfunction after implantation of the artificial heart is high. The infusion of exogenous B-type natriuretic peptide (BNP) after implantation of the total artificial heart (TAH) improves renal function in a sustained manner. The renal protective and hormone-modulating effects of nesiritide may be enhanced with ventriculectomy compared to heart failure surgery that leaves the native myocardium intact. The goal of this project is to determine the renal protective effects of nesiritide after implantation of a mechanical device.

Evaluate the Efficacy and Safety of Recombinant Human Neuregulin-1 for Subcutaneous Administration in Patients With Chronic Systolic Heart Failure

The central objective of this proposal is to establish that vitamin D supplementation in heart failure patients with low vitamin D levels will have improved outcomes compared to placebo. In addition the investigators will also evaluate the role of genetics in regard to vitamin D and heart failure. The investigators will be evaluating what is currently a novel approach of identifying patients with low vitamin D and treating this low vitamin D level. The investigators will be able to evaluate the importance of vitamin D supplementation in these patients and the role of genetics on our defined outcomes.

The aim of this study is to compare the effects of 1) high-dose furosemide, 2) low-dose furosemide, and 3) low-dose furosemide combined with low-dose dopamine on diuresis, clinical status, renal function, electrolyte balance, length of stay, and 60-day post-discharge outcomes in patients hospitalized with acute decompensated heart failure.

The purpose of this study is to determine whether in patients with acute decompensated congestive heart failure and the cardiorenal syndrome, i.e. a state in which therapy directed to improve symptoms is limited by further worsening renal function, fluid removal by ultrafiltration is superior to different pharmacological approaches in acutely relieving congestion and preventing further deterioration in renal function and whether it results in longer admission-free survival 90 days after enrolment

The main purpose of this study is to determine the safety and tolerability of tonapofylline (BG9928) when given at different doses to patients with heart failure and renal insufficiency. This study will also explore: Disease related quality-of-life Exercise capacity Renal function Concomitant medications

The purpose of this study is to examine the safety and potential effectiveness of a new surgical procedure for treating heart failure. The experimental treatment is performed during standard coronary artery bypass graft (CABG) surgery, and applies radiofrequency energy to heat a portion of the damaged heart muscle. The tissue heating reduces the enlarged heart of patients suffering from ischemic heart failure, and may result in the heart pumping blood more efficiently, thereby improving the functional status of the patient.