Conditions: Cardiomyopathy, Dilated
Keywords: Anti-beta1-receptor autoantibodies COR-1 Heart failure
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 36
Healthy volunteers: no

Brief summary:
The purpose of this study is to investigate the effect of COR-1 in combination with standard therapy in patients with heart failure. The safety and tolerability of COR-1 will also be assessed.

Detailed description:
In patients with dilated cardiomyopathy (heart is weakened and enlarged), the presence of anti-beta1-receptor autoantibodies has been shown to predict more depressed left ventricular function, increased prevalence of serious ventricular arrhythmias, sudden cardiac death, and cardiovascular mortality. In animal models, COR-1 cyclopeptide has been shown to bind to, and therefore decrease, the anti-beta1-receptor autoantibody titre. This study will investigate the safety and effectiveness of COR-1 treatment in patients with dilated cardiomyopathy. This study will be a randomized (the study treatment is assigned by chance), double-blind, (neither investigator nor patient knows the treatment that the volunteer receives), multicenter (study is conducted in more than one center) placebo-controlled (one of the treatments is inactive), parallel group study (patients in different treatment groups receive medication at the same time) in men and women who have heart failure due to dilated cardiomyopathy. Eligible patients should also have a left ventricular ejection fraction of less than or equal to 45% (measurement of the percentage of blood leaving the heart each time it contracts) and should be positive for anti-beta1-receptor autoantibodies. The study will consist of 3 phases: a screening phase, a double-blind treatment period, and a follow-up phase. Patients will be randomly assigned to 1 of 4 treatment groups: 20 mg COR-1, 80 mg COR-1, 160 mg COR-1, or placebo (inactive medication). Each patient will receive 1 intravenous dose (medication is injected into a vein) every 4 weeks for a total of 6 months. Patients will come to the study center each time they receive study medication and will remain at the center for 2 to 3 hours following the injection. Blood samples will be drawn at time points during the screening, treatment, and follow-up periods. Patients will return to the study center for follow-up visits at 3 months following completion of the 6-month treatment period. Patients will participate in the study for approximately 9 months. Patient safety will be monitored. The study drug (COR-1) is being investigated for the treatment of heart failure.

Arms:
arm 1: None arm 2: None arm 3: None arm 4: None

Interventions: intervention 1: 0.9 % sodium chloride intervention 2: COR-1 intervention 3: Standard therapy for heart failure
Intervention descriptions: intervention 1: Monthly intravenous injection for 6 months intervention 2: Monthly intravenous injection for 6 months intervention 3: All patients will continue to receive standard therapy for heart failure (ie, in accordance with guidelines) throughout the study.

Protocol document: