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Regadenoson R-T Perfusion Imaging Trial

This study has been completed.
Mayo Clinic
Astellas Pharma Inc
Information provided by (Responsible Party):
Thomas R. Porter, MD, University of Nebraska Identifier:
First received: February 3, 2009
Last updated: July 19, 2012
Last verified: July 2012
To exam the feasibility and accuracy of RTPE during vasodilator stress with 400micrograms of the A2A Receptor agonist Regadenoson for detection of significant coronary artery disease (CAD) in patients scheduled to undergo coronary angiography. Sensitivity, specificity , and accuracy of perfusion and wall motion analysis to identify a coronary stenosis> 50% in diameter by quantitive angiography will be analyzed

Condition Intervention
Coronary Artery Disease Myocardial Perfusion Abnormalities Drug: Regadenoson

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Single (Outcomes Assessor)
Primary Purpose: Diagnostic
Official Title: Regadenoson Real Time Perfusion Imaging Trial

Resource links provided by NLM:

Further study details as provided by Thomas R. Porter, MD, University of Nebraska:

Primary Outcome Measures:
  • more feasible and accurate way to detect significant coronary artery disease [ Time Frame: upon completion of the study ]

Enrollment: 100
Study Start Date: May 2009
Study Completion Date: December 2011
Primary Completion Date: March 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
RTPE studies (resting and following Regadenoson 400 ug IV bolus injection) will be performed during a continuous infusion of lipid encapsulated microbubbles (Definity, Lantheus Medical Imaging) to qualitatively and quantitatively examine wall motion and myocardial contrast enhancement.
Drug: Regadenoson
400ug IV bolus injection, single dosage
Other Names:
  • Definity (Lantheus Medical Imaging)
  • Lipid encapsulated microbubbles


Ages Eligible for Study:   30 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Male or female. Age ≥30 years.
  • Resting Left Ventricular Ejection Fraction > 40% using Simpson's biplane measurement.
  • Scheduled for coronary angiography within 30 days of the Regadenoson stress test.
  • Negative urine pregnancy test within 2 hours of ultrasound contrast administration required of females of childbearing age unless post-menopausal or with evidence of surgical sterilization.
  • Be conscious and coherent, and able to communicate effectively with trial personnel.
  • Agreeable to undergo the additional stress test and coronary angiography
  • Have at least an intermediate likelihood of coronary disease based on the following clinical profile
  • Good apical echo images with at least 50% of each coronary artery territory well visualized.

Exclusion Criteria:

  • Known or suspected hypersensitivity to ultrasound contrast agent used for the study.
  • Pregnancy or lactation.
  • Complicated hemodynamic instability (i.e., NYHA Class IV heart failure, unstable angina at rest despite medical therapy).
  • Life expectancy of less than two months or terminally ill.
  • Congestive (idiopathic) or hypertrophic cardiomyopathy.
  • Known left main disease.
  • Heart transplant recipient, hypertrophic cardiomyopathy, acute myo- or pericarditis.
  • Resting Left Ventricular Ejection Fraction < 40%
  • Large inducible perfusion defects or wall motion abnormalities during prior stress imaging study associated with left ventricular cavity dilatation.
  • Early positive treadmill EKG within the first stage of the test.
  • History of >1st degree heart block, sick sinus syndrome or high grade AV block without a pacemaker.
  • Dipyridamole use within 30 hours of stress test, or consumption of methylxanthines within 12 hours, or use of sublingual nitroglycerin within two hours.
  • Participation In another investigational study within one month of this study.
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Please refer to this study by its identifier: NCT00837369

United States, Minnesota
Mayo Clinic
Rochester, Minnesota, United States, 55905
United States, Nebraska
University of Nebraska Medicial Center
Omaha, Nebraska, United States, 68105
Sponsors and Collaborators
University of Nebraska
Mayo Clinic
Astellas Pharma Inc
  More Information

Responsible Party: Thomas R. Porter, MD, Professor, University of Nebraska Identifier: NCT00837369     History of Changes
Other Study ID Numbers: 566-08-FB
Study First Received: February 3, 2009
Last Updated: July 19, 2012

Keywords provided by Thomas R. Porter, MD, University of Nebraska:
Stress echocardiography
Myocardial perfusion imaging

Additional relevant MeSH terms:
Coronary Artery Disease
Myocardial Ischemia
Coronary Disease
Heart Diseases
Cardiovascular Diseases
Arterial Occlusive Diseases
Vascular Diseases
Adenosine A2 Receptor Agonists
Purinergic P1 Receptor Agonists
Purinergic Agonists
Purinergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs processed this record on September 19, 2017