CONTRAST (Can cONTrast Injection Better Approximate FFR compAred to Pure reSTing Physiology?)
CONTRAST
1 other identifier
observational
763
9 countries
11
Brief Summary
The purpose of this study is to determine the diagnostic performances of iodine contrast medium and resting conditions to predict fractional flow reserve (FFR). Reference FFR will be measured using standard adenosine. We hypothesize that contrast FFR will offer superior diagnostic agreement compared to resting conditions.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jul 2014
Shorter than P25 for all trials
11 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 1, 2014
CompletedFirst Submitted
Initial submission to the registry
July 2, 2014
CompletedFirst Posted
Study publicly available on registry
July 9, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2015
CompletedMay 16, 2016
May 1, 2016
10 months
July 2, 2014
May 12, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Agreement with binary FFR≤0.80
To quantify any improvement in binary agreement from resting conditions to contrast medium injection, using adenosine-derived FFR≤0.8 as the reference standard.
Baseline
Secondary Outcomes (2)
Binary diagnostic performance
Baseline
Continuous relationship with FFR
Baseline
Study Arms (1)
All patients
Entire cohort undergoes paired testing
Interventions
Intracoronary or intravenous adenosine to induce hyperemia for reference FFR
Intracoronary injection of contrast medium to induce hyperemia for "contrast FFR"
Eligibility Criteria
Patients undergoing FFR assessment for standard clinical indications
You may qualify if:
- Age 18 years or older.
- Undergoing FFR assessment for standard clinical indications.
- Ability to understand and willingness to sign a written informed consent.
You may not qualify if:
- Prior coronary artery bypass grafting (CABG).
- Extremely tortuous or calcified coronary arteries precluding intracoronary physiologic measurements. Operators may exclude subtotal or similar high-grade lesions, which in their judgment may be threatened by pressure wire placement.
- Known severe left ventricular hypertrophy (septal wall thickness at echocardiography of \>13 mm).
- Inability to receive adenosine (for example, severe reactive airway disease, marked hypotension, or advanced atrioventricular block without pacemaker).
- Recent (within 3 weeks prior to cardiac catheterization) ST-segment elevation myocardial infarction (STEMI) in any arterial distribution (not specifically target lesion).
- Culprit lesions (based on clinical judgment of the operator) for either STEMI or non-STEMI cannot be included.
- Severe cardiomyopathy (ejection fraction \<30%).
- Renal insufficiency such that an additional 12 to 20 mL of contrast would, in the opinion of the operator, pose unwarranted risk to the patient.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (11)
Stanford University, Palo Alto VA
Palo Alto, California, 94304, United States
Integris Health
Oklahoma City, Oklahoma, 73112, United States
Cardiovascular Center (OLV-Ziekenhuis)
Aalst, Belgium
Hôpital Louis Pradel
Lyon, France
University of Naples Federico II
Naples, 80131, Italy
Catharina Hospital
Eindhoven, North Brabant, 5623EJ, Netherlands
Hospital Fernando Fonseca
Lisbon, Portugal
Seoul National University College of Medicine
Seoul, 110-744, South Korea
Asan Medical Center
Seoul, 138-736, South Korea
Södersjukhuset
Stockholm, Sweden
Golden Jubilee National Hospital
Clydebank, G81 4HX, United Kingdom
Related Publications (15)
De Bruyne B, Pijls NH, Barbato E, Bartunek J, Bech JW, Wijns W, Heyndrickx GR. Intracoronary and intravenous adenosine 5'-triphosphate, adenosine, papaverine, and contrast medium to assess fractional flow reserve in humans. Circulation. 2003 Apr 15;107(14):1877-83. doi: 10.1161/01.CIR.0000061950.24940.88. Epub 2003 Mar 31.
PMID: 12668522BACKGROUNDJohnson NP, Jeremias A, Zimmermann FM, Adjedj J, Witt N, Hennigan B, Koo BK, Maehara A, Matsumura M, Barbato E, Esposito G, Trimarco B, Rioufol G, Park SJ, Yang HM, Baptista SB, Chrysant GS, Leone AM, Berry C, De Bruyne B, Gould KL, Kirkeeide RL, Oldroyd KG, Pijls NHJ, Fearon WF. Continuum of Vasodilator Stress From Rest to Contrast Medium to Adenosine Hyperemia for Fractional Flow Reserve Assessment. JACC Cardiovasc Interv. 2016 Apr 25;9(8):757-767. doi: 10.1016/j.jcin.2015.12.273.
PMID: 27101902RESULTAchim A, Johnson NP, Liblik K, Burckhardt A, Krivoshei L, Leibundgut G. Coronary steal: how many thieves are out there? Eur Heart J. 2023 Aug 7;44(30):2805-2814. doi: 10.1093/eurheartj/ehad327.
PMID: 37264699DERIVEDJohnson NP, Matsuo H, Nakayama M, Eftekhari A, Kakuta T, Tanaka N, Christiansen EH, Kirkeeide RL, Gould KL. Combined Pressure and Flow Measurements to Guide Treatment of Coronary Stenoses. JACC Cardiovasc Interv. 2021 Sep 13;14(17):1904-1913. doi: 10.1016/j.jcin.2021.07.041.
PMID: 34503741DERIVEDJohnson NP, Collet C. Can FFR After Stenting Help Reduce Target Vessel Failure? JACC Cardiovasc Interv. 2021 Sep 13;14(17):1901-1903. doi: 10.1016/j.jcin.2021.08.001. No abstract available.
PMID: 34503740DERIVEDGould KL, Johnson NP, Roby AE, Nguyen T, Kirkeeide R, Haynie M, Lai D, Zhu H, Patel MB, Smalling R, Arain S, Balan P, Nguyen T, Estrera A, Sdringola S, Madjid M, Nascimbene A, Loyalka P, Kar B, Gregoric I, Safi H, McPherson D. Regional, Artery-Specific Thresholds of Quantitative Myocardial Perfusion by PET Associated with Reduced Myocardial Infarction and Death After Revascularization in Stable Coronary Artery Disease. J Nucl Med. 2019 Mar;60(3):410-417. doi: 10.2967/jnumed.118.211953. Epub 2018 Aug 16.
PMID: 30115688DERIVEDJohnson NP, Kirkeeide RL, Gould KL. Same Lesion, Different Artery, Different FFR!? JACC Cardiovasc Imaging. 2019 Apr;12(4):718-721. doi: 10.1016/j.jcmg.2017.11.029. Epub 2018 Jan 17. No abstract available.
PMID: 29361484DERIVEDKobayashi Y, Johnson NP, Zimmermann FM, Witt N, Berry C, Jeremias A, Koo BK, Esposito G, Rioufol G, Park SJ, Nishi T, Choi DH, Oldroyd KG, Barbato E, Pijls NHJ, De Bruyne B, Fearon WF; CONTRAST Study Investigators. Agreement of the Resting Distal to Aortic Coronary Pressure With the Instantaneous Wave-Free Ratio. J Am Coll Cardiol. 2017 Oct 24;70(17):2105-2113. doi: 10.1016/j.jacc.2017.08.049.
PMID: 29050557DERIVEDNishi T, Johnson NP, De Bruyne B, Berry C, Gould KL, Jeremias A, Oldroyd KG, Kobayashi Y, Choi DH, Pijls NHJ, Fearon WF; CONTRAST Study Investigators. Influence of Contrast Media Dose and Osmolality on the Diagnostic Performance of Contrast Fractional Flow Reserve. Circ Cardiovasc Interv. 2017 Oct;10(10):e004985. doi: 10.1161/CIRCINTERVENTIONS.117.004985.
PMID: 29042397DERIVEDMatsumura M, Johnson NP, Fearon WF, Mintz GS, Stone GW, Oldroyd KG, De Bruyne B, Pijls NHJ, Maehara A, Jeremias A. Accuracy of Fractional Flow Reserve Measurements in Clinical Practice: Observations From a Core Laboratory Analysis. JACC Cardiovasc Interv. 2017 Jul 24;10(14):1392-1401. doi: 10.1016/j.jcin.2017.03.031.
PMID: 28728652DERIVEDGargiulo G, Stabile E, Ferrone M, Barbato E, Zimmermann FM, Adjedj J, Hennigan B, Matsumura M, Johnson NP, Fearon WF, Jeremias A, Trimarco B, Esposito G; CONTRST Study Investigators. Diabetes does not impact the diagnostic performance of contrast-based fractional flow reserve: insights from the CONTRAST study. Cardiovasc Diabetol. 2017 Jan 13;16(1):7. doi: 10.1186/s12933-016-0494-2.
PMID: 28086778DERIVEDJohnson NP, Gould KL, Di Carli MF, Taqueti VR. Invasive FFR and Noninvasive CFR in the Evaluation of Ischemia: What Is the Future? J Am Coll Cardiol. 2016 Jun 14;67(23):2772-2788. doi: 10.1016/j.jacc.2016.03.584.
PMID: 27282899DERIVEDGould KL, Johnson NP. Coronary Blood Flow After Acute MI: Alternative Truths. JACC Cardiovasc Interv. 2016 Mar 28;9(6):614-7. doi: 10.1016/j.jcin.2016.02.009. No abstract available.
PMID: 27013162DERIVEDGould KL, Johnson NP. Myocardial Bridges: Lessons in Clinical Coronary Pathophysiology. JACC Cardiovasc Imaging. 2015 Jun;8(6):705-9. doi: 10.1016/j.jcmg.2015.02.013. No abstract available.
PMID: 26068287DERIVEDGould KL, Johnson NP, Kaul S, Kirkeeide RL, Mintz GS, Rentrop KP, Sdringola S, Virmani R, Narula J. Patient selection for elective revascularization to reduce myocardial infarction and mortality: new lessons from randomized trials, coronary physiology, and statistics. Circ Cardiovasc Imaging. 2015 May;8(5):e003099. doi: 10.1161/CIRCIMAGING.114.003099. No abstract available.
PMID: 25977304DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Nils P Johnson, MD, MS
University of Texas Medical School at Houston
- STUDY DIRECTOR
William F Fearon, MD
Stanford University
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor of Medicine
Study Record Dates
First Submitted
July 2, 2014
First Posted
July 9, 2014
Study Start
July 1, 2014
Primary Completion
May 1, 2015
Study Completion
May 1, 2015
Last Updated
May 16, 2016
Record last verified: 2016-05