View clinical trials related to Heart Failure.
Filter by:The objective of the study is to determine if there is any relationship between respiratory rate and Heart Failure events.
The purpose for this study (CY 1124) is to evaluate the effects of CK-1827452, a cardiac myosin activator, on myocardial systolic performance, myocardial oxygen consumption, and myocardial efficiency in patients with heart failure and to confirm that the unique preclinical pharmacological profile of CK- 1827452 is substantially the same in patients with heart failure.
The purpose of this study is to determine whether buspirone compared to acetazolamide and to placebo will reduce the number and/or severity of breathing pauses during sleep that occur in some patients with Heart Failure.
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 determine the efficacy and safety of IV SLV320 in acute heart failure patients with renal dysfunction.
Several lines of evidence have suggested that Advanced Glycation End-products (AGEs) play a role in the development and progression of heart failure. The AGE-crosslink breaker Alagebrium improved cardiac function and symptoms in experimental preclinical and small human heart failure studies. These results have not yet been confirmed in a randomized controlled clinical trial. Objective: to evaluate the safety and efficacy of alagebrium in subjects diagnosed with heart failure. This is a randomized, double-blind, placebo-controlled trial to assess the effects of 400 mg (2 x 100 mg bid) of alagebrium versus placebo over 9 months. 100 subjects will be studied (50 per treatment group) in approximately 6 centers. Procedures: exercise testing (VO2 max; the primary variable), ECGs and blood sampling.
Specific Aims The aims of this trial are to evaluate the safety and effectiveness of the DuraHeart™ LVAS in patients with advanced heart failure who require LVAS support as a bridge to cardiac transplantation. Study Population The patient population for this trial consists of patients with end stage heart failure awaiting cardiac transplantation. Patients must be listed for transplant with UNOS with status 1A or 1B. All patients who meet the eligibility criteria may be included in the study regardless of gender, race or ethnicity. Study Design This is a multi-center, prospective, single arm study in which the lower one-sided confidence interval exceeds the performance goal. Enrollment is expected to occur within an 18-month time period at up to 40 centers. All patients will be followed for all endpoints for 6 months while on DuraHeart™ LVAS support, or until cardiac transplantation or death, whichever occurs first. For those patients who remain on support after 180 days, survival and device reliability data will continue to be collected on a regular basis. If patients are transplanted, survival at day 30 post cardiac transplantation will also be assessed.
The principal research objectives are to demonstrate cardioselective beta-blockade using bisoprolol is not inferior to placebo with regard to pulmonary function and improves quality of life in patients with heart failure and coexistent moderate or severe chronic obstructive pulmonary disease with or without significant reversibility. Patients will be followed up for 4 months during which bisoprolol will be up-titrated to the maximum clinically tolerated dose. Health status will be assessed using a generic and two disease specific questionnaires, and pulmonary function by spirometry, body box plethysmography, and cardiopulmonary exercise testing.
A new therapy for patients with advanced heart failure (HF) involves the implantation of a specialized pacemaker device (Cardiac Resynchronization Therapy, CRT) that attempts to restore the synchronized contraction of the ventricular chambers of the heart. In some people, CRT improves exertional breathlessness and allows them to exercise for longer periods. However, to date, the mechanisms by which CRT improves symptoms and exercise tolerance is unknown. This study will use in-depth cardiopulmonary exercise testing and pulmonary function testing to explore these mechanisms in greater detail.
Many patients with heart failure are unable to increase their heart rate appropriately when their body needs increased blood flow. As a result, they may be unable to mobilize excess fluid that their body retains. We hypothesize that we can provide assistance to their body in mobilizing this fluid by artificially increasing their heart rate using a pacemaker. We plan to conduct a prospective clinical trial to evaluate this hypothesis. We will use a cross over design to study patients who already have biventricular pacemakers implanted or a narrow QRS and volume overload. We will screen them using a blood test that is a rough estimate of volume overload. Patients who meet the inclusion criteria will be randomly assigned to have their pacemakers adjusted or to have no intervention during the first of 2 visits. They will be unaware of which group they are in. Following adjustment, they will be monitored for six hours. Prior to the pacemaker adjustment, several tests will be performed to evaluate heart function and the levels of hormones related that are affected by heart failure. These tests will be repeated at the end of the six hour intervention period in each visit. At the end of the visit patients who had their pacemakers adjusted will have it reset to their original settings.