Measuring G Protein-Coupled Receptor Kinase-2 (GRK2) in the Blood to Diagnose and Treat Patients With Heart Failure

This study is currently recruiting participants.

Verified by Thomas Jefferson University, January 2009

First Received: January 8, 2007 Last Updated: January 22, 2009 History of Changes

Sponsor:	Thomas Jefferson University
Collaborator:	Johnson & Johnson
Information provided by:	Thomas Jefferson University
ClinicalTrials.gov Identifier:	NCT00419965

Purpose

The primary objective of this study is to determine the utility of GRK2 to differentiate between normal patients and patient groups that differ by the presence/absence of HF symptoms, systolic or diastolic left ventricular dysfunction, and risk factors; and to evaluate if a new assay provides similar values as traditional methods for measuring GRK2 levels.

Condition
Heart Failure

Study Type:	Observational
Study Design:	Cohort, Prospective
Official Title:	Measuring GRK2 in the Blood to Diagnose and Treat Patients With Heart Failure

Resource links provided by NLM:

MedlinePlus related topics: Heart Failure

U.S. FDA Resources

Further study details as provided by Thomas Jefferson University:

Biospecimen Retention: Samples With DNA

Biospecimen Description:

Frozen serum/plasma - coded samples

Estimated Enrollment:	600
Study Start Date:	October 2006
Estimated Study Completion Date:	February 2009

Detailed Description:

This study seeks to define a beta-adrenergic receptor kinase molecule in the blood and its role as an improved biomarker to be used for the diagnosis, assessment and management of patients with heart failure. We will test blood cell samples for the levels of this molecule, called "G protein-coupled receptor kinase-2" (GRK2) using both the existing method of GRK2 quantification in the Koch laboratory and using a prototype enzyme immunoassay (EIA) method being developed by Johnson & Johnson, Ortho-Clinical Diagnostics (OCD).

Eligibility

Ages Eligible for Study:	18 Years and older
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No
Sampling Method:	Probability Sample

Study Population

The study population subjects includes individuals in a range of age groups with a diagnosis of heart failure or at least one cardiovascular risk factor along with a subset of normal control subjects.

Criteria

Inclusion Criteria:

Normal Controls: Individuals without HF, hypertension, diabetes, hyperlipidemia, coronary artery disease or obesity;
Group I: Symptomatic Subjects with Reduced LV Function, HF symptoms, EF ≤ 40%.
Group II: Asymptomatic Patients with LV dysfunction, no HF symptoms (NYHA class I and ATS score 0 or 1, EF ≤ 40%.
Group III: Symptomatic Subjects with Preserved LV Function, HF symptoms, EF ≥ 50%, and diastolic dysfunction.
Group IV: Asymptomatic High Risk Subjects - Individuals with normal heart function, no HF symptoms (NYHA class I and ATS score 0 or 1), Preserved LV function (EF ≥ 50%), no diastolic dysfunction. Also possess one or more cardiovascular high risk factors: diagnosis of diabetes; hyperlipidemia; coronary artery disease; renal insufficiency; hypertension; age >70 years

Exclusion Criteria

Pregnancy
Not providing consent
Inability to provide consent
Participation in a clinical study involving an experimental therapy.

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00419965

Contacts

Contact: Suzanne Adams, RN MPH	215 955 8848	suzanne.adams@jefferson.edu
Contact: David J. Whellan, MD MHS	215 955 2636	david.whellan@jefferson.edu

Locations

United States, Pennsylvania
Thomas Jefferson University	Recruiting
Philadelphia, Pennsylvania, United States, 19107
Sub-Investigator: Paul J. Mather, MD
Sub-Investigator: Sharon Rubin, MD
Sub-Investigator: David J. Whellan, MD MHS

Sponsors and Collaborators

Thomas Jefferson University

Johnson & Johnson

Investigators

Principal Investigator:

Walter J. Koch, PhD

Thomas Jefferson University

More Information

No publications provided

Responsible Party:	Thomas Jefferson University Office of Research Administration ( Walter J. Koch PhD (PI) )
Study ID Numbers:	06C.358
Study First Received:	January 8, 2007
Last Updated:	January 22, 2009
ClinicalTrials.gov Identifier:	NCT00419965 History of Changes
Health Authority:	United States: Institutional Review Board

Additional relevant MeSH terms:

Heart Failure
Heart Diseases
Cardiovascular Diseases

ClinicalTrials.gov processed this record on November 27, 2009