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A Registry to Evaluate Patterns of Care Associated With the Use of Corus® CAD in Real World Clinical Care Settings (PRESET)

This study has been completed.
Information provided by (Responsible Party):
CardioDx Identifier:
First received: August 29, 2012
Last updated: January 26, 2016
Last verified: January 2016
The PRESET Registry--A Registry to Evaluate Patterns of Care Associated With the Use of Corus® CAD in Real World Clinical Care Settings (PRESET)--was designed as an observational, post-market, real-world registry to evaluate patterns of care, including referrals to a cardiologist, cardiac stress testing, CT angio, within the first month after Cours CAD testing.

Chest Pain Coronary Artery Disease

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: The PRESET Registry: A Registry to Evaluate Patterns of Care Associated With the Use of Corus® CAD in Real World Clinical Care Settings

Further study details as provided by CardioDx:

Primary Outcome Measures:
  • To describe referral patterns for cardiac care and testing within 1 month after gene expression testing. [ Time Frame: 1 month ]

Secondary Outcome Measures:
  • To describe follow up events (eg., diagnoses, non-cardiac testing, medication use, MACE) at 12 months follow up within gene expression test strata. [ Time Frame: 12 months ]

Enrollment: 713
Study Start Date: August 2012
Study Completion Date: October 2015
Primary Completion Date: September 2014 (Final data collection date for primary outcome measure)
Receiving Corus® CAD
Patients receiving Corus® CAD to aid in the diagnosis of obstructive CAD

Detailed Description:

Though the diagnostic properties of Corus® CAD have been evaluated in previous observational studies, there are limited data regarding how primary care clinicians are using the results of the test in the care and management of patients with angina. This registry is designed to examine the relationship between the Corus CAD score and patterns of care regarding diagnostic testing in real world clinical care settings.

Atherosclerotic coronary artery disease (CAD) is the most common cause of morbidity and mortality worldwide. CAD affects 16.5 million persons in the US. Diagnosing CAD is not straightforward and poses an enormous burden on the health care system. The most common symptom of CAD is chest pain (angina), however, only 10%-30% of chest pain and related symptoms are due to CAD. Though there are several diagnostic tests for CAD (e.g., coronary angiography, stress testing, nuclear myocardial perfusion imaging (MPI)), each has its limitations, including invasiveness, safety risks (e.g., bleeding, radiation exposure), expense, lack of accuracy, subjectivity in evaluation and interpretation of findings, and lack of availability in all geographic regions.

Recent scientific findings demonstrate that multiple genes are activated in circulating blood cells in patients with CAD. A gene expression test that detects activated and/or deactivated genes could therefore serve as a tool in aiding the diagnosis of CAD. The Corus® CAD test (henceforth, "Corus CAD") is a validated quantitative in vitro diagnostic test, performed in a single Clinical Laboratory Improvement Amendments (CLIA ) laboratory at CardioDx, Inc., using the gene expression level of 23 genes from peripheral blood specimens to assess the likelihood of a subject having at least a 50% coronary artery stenosis. Corus CAD incorporates the expression levels of these genes, using a validated algorithm with weighted functions, to generate a quantitative score and is indicated for use in stable patients with typical or atypical symptoms suggestive of CAD (e.g., chest pain, shortness of breath, heartburn, fatigue on exertion). The test is non-invasive (involving simple venipuncture), and as the results are evaluated at one laboratory, there is minimal potential variability in the analysis of findings.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
Patients presenting to their primary clinician's office with chest pain suggestive of obstructive coronary artery disease.

Inclusion Criteria:

  1. Symptoms suggestive of CAD, according to the opinion of the site registry clinician
  2. Receiving Corus CAD to aid in the diagnosis of obstructive CAD
  3. Age >= 18 years
  4. Willing and able to provide written informed consent

Exclusion Criteria:

  1. History of myocardial infarction (MI)
  2. Current MI or acute coronary syndrome
  3. Current New York Heart Association (NYHA) class III or IV congestive heart failure symptoms
  4. Known/documented CAD
  5. Diabetes Mellitus
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01677156

United States, Arizona
Warner Family Practice
Chandler, Arizona, United States, 85224
United States, Georgia
Synergy Health
Hiawassee, Georgia, United States, 30546
John's Creek Primary Care
Suwanee, Georgia, United States, 30024
United States, Kentucky
Paul McLaughlin, MD - Family Practice
Mount Sterling, Kentucky, United States, 40353
United States, Louisiana
KD Health and Wellness Center
Simmesport, Louisiana, United States, 71369
United States, Nebraska
Doctors for Health
Omaha, Nebraska, United States, 68130
United States, North Carolina
TIMA Wellness
Greensboro, North Carolina, United States, 27405
United States, Ohio
Dayton Internal Medicine
Dayton, Ohio, United States, 45402
Northside Medical Center
Youngstown, Ohio, United States, 44505
United States, Texas
Bells Medical Clinic
Bells, Texas, United States, 75414
Family Care Clinic
Bonham, Texas, United States, 75418
Aldrich Internal Medicine
Dallas, Texas, United States, 75218
Texas Familicare
Hurst, Texas, United States, 76054
Sponsors and Collaborators
Study Director: Michael Zapien, MS CardioDx, Inc.
Principal Investigator: Mark Monane, MD CardioDx, Inc.
  More Information

Responsible Party: CardioDx Identifier: NCT01677156     History of Changes
Other Study ID Numbers: CDX000015
Study First Received: August 29, 2012
Last Updated: January 26, 2016

Additional relevant MeSH terms:
Coronary Artery Disease
Myocardial Ischemia
Coronary Disease
Chest Pain
Heart Diseases
Cardiovascular Diseases
Arterial Occlusive Diseases
Vascular Diseases
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms processed this record on September 21, 2017