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Computed TomogRaphic Evaluation of Atherosclerotic DEtermiNants of Myocardial IsChEmia

Computed TomogRaphic Evaluation of Atherosclerotic DEtermiNants of Myocardial IsChEmia (The CREDENCE Trial)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02173275
Acronym
CREDENCE
Enrollment
618
Registered
2014-06-24
Start date
2014-05-31
Completion date
2018-01-18
Last updated
2019-11-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Myocardial Ischemia

Brief summary

The study seeks to determine the accuracy of using anatomic and physiologic information measurable by computed tomography features of stenosis, plaque, fractional flow reserve-CT and to compare this measure to stress testing for the detection of myocardial ischemia against the gold standard of cardiac catheterization with fractional flow reserve. The hypothesis of this proposal is that integrating anatomic plaque features with physiologic fractional flow reserve-CT will optimize identification of coronary lesions that are ischemia-causing by computed tomography .

Detailed description

The CREDENCE trial will be a prospective multicenter cross-sectional study of 618 individuals (n=309 \[derivation cohort\]; n=309 \[validation cohort\]) who will undergo stress test, computed tomography, cardiac catheterization and fractional flow reserve. For the purposes of the study, either stress test or computed tomography will have been performed for clinical purposes, with the other test being performed as part of trial procedure. Study analyses will focus on the diagnostic performance of the information derived by stress test versus computed tomography against an invasive gold standard of cardiac catheterization and fractional flow reserve for an endpoint of vessel territory-specific ischemia. In keeping with prior studies, vessel territories will be comprised of the left anterior descending artery (and diagonal branches), the left circumflex artery (and obtuse marginal branches) and the right coronary artery (and posterolateral branch and posterior descending artery). To date, the relative performance of traditional stress imaging testing compared to the entirety of information proffered by CT has not been assessed compared to an unbiased gold standard. The study proposed herein will directly address this unmet need.

Interventions

None listed

Sponsors

National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH
Weill Medical College of Cornell University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Age \>18 years 2. Scheduled to undergo clinically-indicated non-emergent invasive coronary angiography

Exclusion criteria

1. Known CAD (myocardial infarction \[MI\], percutaneous coronary interventions \[PCIs\], coronary artery bypass graft \[CABG\],) 2. Hemodynamic instability 3. Inability to provide written informed consent 4. Concomitant participation in another clinical trial in which subject is subject to investigational drug or device 5. Pregnant state 6. Absolute contraindication to iodinated contrast due to prior near-fatal anaphylactoid reaction (laryngospasm, bronchospasm, cardiorespiratory collapse, or equivalent) 7. Serum creatinine ≥1.7 mg/dl or Glomerular Filtration Rate \<30 ml/min 8. Baseline irregular heart rhythm (e.g., atrial fibrillation, etc.) 9. Heart rate ≥100 beats per minute 10. Systolic blood pressure ≤90 mm Hg 11. Contraindications to β blockers or nitroglycerin or adenosine 12. BMI \>40 kg/m2

Design outcomes

Primary

MeasureTime frameDescription
Diagnostic accuracy of vessel territory-specific ischemia of an integrated stenosis-APC-FFRCT measure by CT48-60 monthsThe primary endpoint is the diagnostic accuracy of an integrated stenosis-APC-FFRCT metric by CT, as compared to perfusion or perfusion-MBF stress imaging testing for vessel territory-specific ischemia as determined by FFR (gold standard).

Secondary

MeasureTime frameDescription
Individual comparisons of APCs or FFRCT to MPI vessel-specific perfusion deficits or reduced MBF.48-60 monthsTo compare the accuracy of the individual components of APCs or FFRCT to MPI vessel-specific perfusion deficits or reduced MBF against ischemia by FFR.
Post-PCI FFR prediction by FFRCT virtual stenting48-60 monthsTo determine the accuracy of FFRCT virtual stenting to post-PCI FFR value of \>0.80 and determine the correlation between the FFRCT virtual stenting to post-PCI FFR.

Countries

Canada, China, Italy, Japan, Latvia, Netherlands, South Korea, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 2, 2026