Viewing Study NCT00443859



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Study NCT ID: NCT00443859
Status: TERMINATED
Last Update Posted: 2016-07-11
First Post: 2007-03-02

Brief Title: N-Terminal Pro-brain Natriuretic Peptide Hormone and Persistent Pulmonary Hypertension
Sponsor: Christiana Care Health Services
Organization: Christiana Care Health Services

Study Overview

Official Title: Clinical Significance of N-Terminal Pro-Brain Natriuretic Peptide Levels in Persistent Pulmonary Hypertension
Status: TERMINATED
Status Verified Date: 2009-05
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Interim analysis showed greater variablility in NT-proBNP findings than anticipated
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: Babies who are suspected of having persistent pulmonary hypertension PPHN will be included in this study PPHN is a condition in which the blood is restricted from flowing to the lungs in a normal way making it hard for babies to breath and placing strain on the heart This study will observe whether certain hormones that measure stress N-terminal pro-brain natriuretic peptide can help determine how well a baby will do when they have PPHN
Detailed Description: PPHN occurs in infant or 34 weeks gestation and is characterized by an elevation in pulmonary vascular resistance PVR and right-to-left shunting of the blood at the atrial ductal and pulmonary levels leading to hypoxemia Management of these infants is complex and the clinical course is often difficult to predict

Brain natriuretic peptide BNP is a cardiac hormone that is secreted from cardiac myocytes and cardiac fibroblasts Upon activation the prohormone is cleaved into a biologically active BNP and an inactive N-terminal proBNP NT-proBNP BNP and NT-proBNP levels are increasingly being used for diagnostic purpose in adults and have been correlated to adult pulmonary hypertension Multiples studies have been performed to determine normal values for NT-proBNP in the pediatric population One study measured NT-proBNP levels in umbilical cord blood during the second trimester and at delivery of uncomplicated pregnancies and determined normal reference values of NT-proBNP It is thought that NT-proBNP has potential for use in term infants with PPHN

The objective of this research is to correlate NT-proBNP levels to left ventricular dysfunction in term infants with PPHN Secondarily we want to assess the possible use of NT-proBNP to predict response to inhaled nitric oxide and the ability to successfully wean off inhaled nitric oxide

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None