NCT04973410

Brief Summary

Aims

  1. 1.To assess the correlation between absolute flow and resistance assessed by catheter-based thermodilution technique using CoroFlow®-system and myocardial blood flow (MBF) measured by positron emission tomography (PET) and the tracer \[15O\] labeled water (\[15O\]H2O) (15O-H2O PET)
  2. 2.To assess the correlation between impaired MBF measured with 15O-H2O PET and negative fractional flow reserve (FFR) and index of microvascular resistance (IMR) level.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at below P25 for not_applicable coronary-artery-disease

Timeline
Completed

Started Dec 2019

Typical duration for not_applicable coronary-artery-disease

Geographic Reach
1 country

1 active site

Status
completed

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

December 1, 2019

Completed
1.3 years until next milestone

First Submitted

Initial submission to the registry

March 17, 2021

Completed
4 months until next milestone

First Posted

Study publicly available on registry

July 22, 2021

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2023

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2024

Completed
Last Updated

July 31, 2024

Status Verified

July 1, 2024

Enrollment Period

4.1 years

First QC Date

March 17, 2021

Last Update Submit

July 29, 2024

Conditions

Keywords

Thermodilution methodFFRIMRCFRPETMyocardial Blood Flow

Outcome Measures

Primary Outcomes (2)

  • Sensitivity, specificity for absolute myocardial blood flow measured by 15O-H2O PET in detection of coronary microcirculatory diseases measured by index of microcirculatory index (IMR)

    Sensitivity, specificity for absolute myocardial blood flow measured by 15O-H2O PET in detection of coronary microcirculatory diseases measured by index of microcirculatory index (IMR) during catheter-based thermodilution technique. The diagnostic performance of 15O-H2O PET between low and high IMR groups

    From the 15O-H2O PET scan to the coronary physiology assessment during ICA, up to 1 week.

  • The diagnostic performance of 15O-H2O PET between low and high IMR groups

    positive predictive value (PPV), negative predictive value (NPV) for absolute myocardial blood flow measured by 15O-H2O PET in detection of coronary microcirculatory diseases measured by index of microcirculatory index (IMR) during catheter-based thermodilution technique.

    From the 15O-H2O PET scan to the coronary physiology assessment during ICA, up to 1 week.

Study Arms (2)

Group A

OTHER

FFR negative/non-significant (\>0.80) and IMR negative (\<25)

Diagnostic Test: Coronary PhysiologyDiagnostic Test: 15O-H2O-PET scan

Group B

OTHER

FFR negative/non-significant (\>0.80) and IMR positive (\>25)

Diagnostic Test: Coronary PhysiologyDiagnostic Test: 15O-H2O-PET scan

Interventions

Coronary PhysiologyDIAGNOSTIC_TEST

Invasive coronary physiology measurements during diagnostic CAG with thermodilution method with the CoroFlow® (Coroventis, Uppsala, Sweden)

Also known as: IMR, FFR, CFR
Group AGroup B
15O-H2O-PET scanDIAGNOSTIC_TEST

Myocardial blood flow (MBF) measured with oxygen-15 (O-15) labelled water used as a tracer molecule with positron emission tomography (PET)

Group AGroup B

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients referred to diagnostic ICA after heart-CT
  • Able to provide an informed consent.
  • Age ≥ 18 years

You may not qualify if:

  • PCI, CABG, POBA or already acknowledge ischemic heart disease
  • Acute coronary disease or AMI
  • COPD or Asthma
  • Pregnancy and breast breeding
  • Contraindications to adenosine (severe asthma, complicated AV block, critical aortic stenosis, severe cardiac arrhythmias, severe valve diseases).
  • Renal impairment with estimated glomerular filtration rate (eGFR) \<40 ml / min.
  • Allergy to X-ray contrast agents or severe metabolic disease.
  • Donor heart, mechanical heart, or mechanical heart pump

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Aarhus University Hospital

Aarhus, 8200, Denmark

Location

Related Publications (13)

  • Pakkal M, Raj V, McCann GP. Non-invasive imaging in coronary artery disease including anatomical and functional evaluation of ischaemia and viability assessment. Br J Radiol. 2011 Dec;84 Spec No 3(Spec Iss 3):S280-95. doi: 10.1259/bjr/50903757.

    PMID: 22723535BACKGROUND
  • Wood DJ, Mason JB, Chapman HM. Scrapie scruples. N Z Vet J. 1978 Jul;26(7):190-1. doi: 10.1080/00480169.1978.34537. No abstract available.

    PMID: 278924BACKGROUND
  • Huang SC, Schwaiger M, Carson RE, Carson J, Hansen H, Selin C, Hoffman EJ, MacDonald N, Schelbert HR, Phelps ME. Quantitative measurement of myocardial blood flow with oxygen-15 water and positron computed tomography: an assessment of potential and problems. J Nucl Med. 1985 Jun;26(6):616-25.

    PMID: 3873525BACKGROUND
  • Bergmann SR, Fox KA, Rand AL, McElvany KD, Welch MJ, Markham J, Sobel BE. Quantification of regional myocardial blood flow in vivo with H215O. Circulation. 1984 Oct;70(4):724-33. doi: 10.1161/01.cir.70.4.724.

    PMID: 6332687BACKGROUND
  • Berti V, Sciagra R, Neglia D, Pietila M, Scholte AJ, Nekolla S, Rouzet F, Pupi A, Knuuti J. Segmental quantitative myocardial perfusion with PET for the detection of significant coronary artery disease in patients with stable angina. Eur J Nucl Med Mol Imaging. 2016 Jul;43(8):1522-9. doi: 10.1007/s00259-016-3362-0. Epub 2016 Mar 18.

    PMID: 26993310BACKGROUND
  • Kajander S, Joutsiniemi E, Saraste M, Pietila M, Ukkonen H, Saraste A, Sipila HT, Teras M, Maki M, Airaksinen J, Hartiala J, Knuuti J. Cardiac positron emission tomography/computed tomography imaging accurately detects anatomically and functionally significant coronary artery disease. Circulation. 2010 Aug 10;122(6):603-13. doi: 10.1161/CIRCULATIONAHA.109.915009. Epub 2010 Jul 26.

    PMID: 20660808BACKGROUND
  • Danad I, Uusitalo V, Kero T, Saraste A, Raijmakers PG, Lammertsma AA, Heymans MW, Kajander SA, Pietila M, James S, Sorensen J, Knaapen P, Knuuti J. Quantitative assessment of myocardial perfusion in the detection of significant coronary artery disease: cutoff values and diagnostic accuracy of quantitative [(15)O]H2O PET imaging. J Am Coll Cardiol. 2014 Oct 7;64(14):1464-75. doi: 10.1016/j.jacc.2014.05.069.

    PMID: 25277618BACKGROUND
  • De Bruyne B, Pijls NH, Kalesan B, Barbato E, Tonino PA, Piroth Z, Jagic N, Mobius-Winkler S, Rioufol G, Witt N, Kala P, MacCarthy P, Engstrom T, Oldroyd KG, Mavromatis K, Manoharan G, Verlee P, Frobert O, Curzen N, Johnson JB, Juni P, Fearon WF; FAME 2 Trial Investigators. Fractional flow reserve-guided PCI versus medical therapy in stable coronary disease. N Engl J Med. 2012 Sep 13;367(11):991-1001. doi: 10.1056/NEJMoa1205361. Epub 2012 Aug 27.

    PMID: 22924638BACKGROUND
  • Pijls NH, van Schaardenburgh P, Manoharan G, Boersma E, Bech JW, van't Veer M, Bar F, Hoorntje J, Koolen J, Wijns W, de Bruyne B. Percutaneous coronary intervention of functionally nonsignificant stenosis: 5-year follow-up of the DEFER Study. J Am Coll Cardiol. 2007 May 29;49(21):2105-11. doi: 10.1016/j.jacc.2007.01.087. Epub 2007 May 17.

    PMID: 17531660BACKGROUND
  • Corcoran D, Young R, Adlam D, McConnachie A, Mangion K, Ripley D, Cairns D, Brown J, Bucciarelli-Ducci C, Baumbach A, Kharbanda R, Oldroyd KG, McCann GP, Greenwood JP, Berry C. Coronary microvascular dysfunction in patients with stable coronary artery disease: The CE-MARC 2 coronary physiology sub-study. Int J Cardiol. 2018 Sep 1;266:7-14. doi: 10.1016/j.ijcard.2018.04.061. Epub 2018 Apr 19.

    PMID: 29716756BACKGROUND
  • Neumann FJ, Sousa-Uva M, Ahlsson A, Alfonso F, Banning AP, Benedetto U, Byrne RA, Collet JP, Falk V, Head SJ, Juni P, Kastrati A, Koller A, Kristensen SD, Niebauer J, Richter DJ, Seferovic PM, Sibbing D, Stefanini GG, Windecker S, Yadav R, Zembala MO; ESC Scientific Document Group. 2018 ESC/EACTS Guidelines on myocardial revascularization. Eur Heart J. 2019 Jan 7;40(2):87-165. doi: 10.1093/eurheartj/ehy394. No abstract available.

    PMID: 30165437BACKGROUND
  • Xaplanteris P, Fournier S, Keulards DCJ, Adjedj J, Ciccarelli G, Milkas A, Pellicano M, Van't Veer M, Barbato E, Pijls NHJ, De Bruyne B. Catheter-Based Measurements of Absolute Coronary Blood Flow and Microvascular Resistance: Feasibility, Safety, and Reproducibility in Humans. Circ Cardiovasc Interv. 2018 Mar;11(3):e006194. doi: 10.1161/CIRCINTERVENTIONS.117.006194.

    PMID: 29870386BACKGROUND
  • Luo C, Long M, Hu X, Huang Z, Hu C, Gao X, Du Z. Thermodilution-derived coronary microvascular resistance and flow reserve in patients with cardiac syndrome X. Circ Cardiovasc Interv. 2014 Feb;7(1):43-8. doi: 10.1161/CIRCINTERVENTIONS.113.000953. Epub 2014 Jan 7.

    PMID: 24399243BACKGROUND

Related Links

MeSH Terms

Conditions

Coronary Artery Disease

Condition Hierarchy (Ancestors)

Coronary DiseaseMyocardial IschemiaHeart DiseasesCardiovascular DiseasesArteriosclerosisArterial Occlusive DiseasesVascular Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Associate Professor

Study Record Dates

First Submitted

March 17, 2021

First Posted

July 22, 2021

Study Start

December 1, 2019

Primary Completion

December 31, 2023

Study Completion

July 1, 2024

Last Updated

July 31, 2024

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will not share

Locations