Heart Failure, Congestive
Conditions
Brief summary
The purpose of this study is to determine whether treatment with Toprol-XL for 12 months in asymptomatic heart failure subjects will improve their heart structure and thus prevent the progression to symptomatic disease.
Interventions
50 mg
Sponsors
Study design
Eligibility
Inclusion criteria
* Diagnosis of stable asymptomatic heart failure. * Documented ejection fraction less than 0.40. * Must be able to comply with all study procedures.
Exclusion criteria
* Taken B-blocker therapy for longer than 1 week within 6 months prior to randomization. * Have heart problems that would not allow B-blocker therapy. * Receiving B-blockers therapy for any medical reason including topical B-blockers that might cause systemic absorption (e.g., glaucoma). * Undergone certain heart surgeries, such as, prior heart transplant or cardiomyoplasty. * Have certain heart diseases. * Pregnant or breast feeding. * Unlikely to survive.
Countries
United States