Rapid Assessment of Bedside BNP In Treatment of Heart Failure (RABBIT)

Study Overview
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Brief Summary
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To determine the clinical utility of using the Triage® BNP Test to guide therapy in outpatients with heart failure

Detailed Description
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The Triage® BNP Test has been cleared by the U.S. Food and Drug Administration as an aid in the diagnosis and assessment of severity of heart failure. In addition to numerous reports describing the diagnostic and prognostic utility of BNP, reports from various pilot studies have described decreases in BNP in association with various heart failure therapies. Other reports have described modest increases in BNP in association with digitalis and beta-receptor antagonism. The observation that the circulating BNP concentration decreases during heart failure therapy, coupled with the ability of BNP to be used as a prognostic tool and assess the severity of heart failure, it is hypothesized that using BNP measurements to guide heart failure therapy could have a significant impact on the care of heart failure patients. This hypothesis is supported by various reports of pilot studies that describe a significant benefit of administering therapy tailored to concentrations of BNP and related peptides. Patients that are discharged after a hospitalization for heart failure will be approached for study enrollment.This is a multi-center, single (patient)-blinded cluster-randomized study. Half of the sites will have BNP measurements available to guide therapy (experimental arm) and the other half of the sites will not have BNP measurements available (control arm). Blood (plasma) will be collected at each visit and appropriate forms completed. Patients will be asked to complete a Minnesota living with heart failure questionnaire and to do a 6-minute walk test. Patients will be followed for 12 months.

Official Title
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Rapid Assessment of Bedside BNP In Treatment of Heart Failure (RABBIT)

Conditions
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Heart Failure

Intervention / Treatment
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* Device: Triage® B-Type Natriuretic Peptide (BNP) Test


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age 18 or older Patient was hospitalized and treated for heart failure Patient is fully stabilized at discharge Able to give informed consent Exclusion Criteria: History of severe pulmonary disease Chronic O2 therapy for COPD Primary pulmonary hypertension History of renal disease requiring dialysis History of severe hepatic disease Patients using LVAD's Stroke, MI, PTCA, CABG or unstable angina within the past 1 month Bi-ventricular pacemaker placement within last 1 month History of severe aortic stenosis History of severe mitral stenosis History of constrictive pericarditis Patient has had a cardiac transplant Status 1 cardiac transplant candidates ICD or DRG assignment of non-Q wave MI within last 1 month Patient has cor pulmonale A re-hospitalization, death or an IV treatment for heart failure before the first post-discharge visit and/or15) Planned chronic IV treatment.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Intervention/Treatment |
| --- |
|Device: Triage® B-Type Natriuretic Peptide (BNP) Test|nan|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Combined endpoint of mortality, unplanned clinic or hospital visits that require IV treatment for heart failure, and quality of life. |  |  | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| All-cause re-hospitalization, Quality of Life, 6 minute walk distance, New York Heart Association class and BNP. |  |  |