Comparison of BNP & NT-proBNP in the Management of Patients With Chronic &

Status Active, not recruiting

Clinical Trial Summary

The purpose of this study is to compare the changes in B-type Natriuretic Peptide (BNP) and amino-terminal fragment of proBNP (NT-proBNP) in outpatients managed in the heart failure (HF) clinic initiated on the Angiotensin Receptor Neprilysin Inhibitor (Entresto) and directly compare the prognostic values of BNP and NT-proBNP in patients admitted with acute decompensated HF.

Clinical Trial Description

Both natriuretic peptides (NP), namely B-type NP (BNP) and amino-terminal fragment of proBNP (NT-proBNP), have an established role in the management of patients with heart failure (HF).[1] However, the clinical utility of BNP has recently been questioned with the PARADIGM-HF trial, which demonstrated increased BNP and reduced NT-proBNP levels following the administration of Entresto, a newly approved angiotensin receptor neprilysin inhibitor (ARNI).[2.3] The increase in BNP was thought to be reflective of reduced metabolism of BNP as a result of neprilysin inhibition.[2] However, this claim was based on observations of three points in time and with wide confidence intervals.[3] In addition, there has been no attempt to demonstrate dose relationships. Furthermore, although both BNP and NT-proBNP have each been shown to predict HF readmission in hospitalized patients [1,4,5] the relative utility between the two NPs for this prediction remains unclear. We therefore hypothesize that once beyond the initiation of ARNI therapy, BNP and NT-proBNP will be equally predictive of clinical events in patients with HF.

The studies comprise of two separate protocols:

A. Outpatient Protocol - the effect of Entresto measuring the changes in the NT-proBNP and BNP test results. This protocol will be conducted on ambulatory outpatients initiating on Entresto. Patients will have blood sampling for the measurements of BNP and NT-proBNP at baseline, at the first and second up titration in dose of Entresto, and at 6 months and 1st year after starting Entresto.

B. Inpatient Protocol-predicting outcomes. This will be conducted on patients admitted for acute decompensated HF. Blood sampling for BNP and NT-proBNP will be collected in different time points (admission, hospital discharge, 30th day, 90th day, and 180th day) and measure its changes. ;

Study Design

Related Conditions & MeSH terms

Heart Failure

Clinical Trial Details

NCT number	NCT04107220
Study type	Interventional
Source	St. Michael's Hospital, Toronto
Contact
Status	Active, not recruiting
Phase	N/A
Start date	June 2016
Completion date	June 2020

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Comparison of BNP and NT-proBNP in the Management of Patients With Chronic and Acute Heart Failure

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms