NCT04679805

Brief Summary

The use of intra coronary physiological assessment with fractional flow reserve (FFR) is nowadays the standard approach to define ischemia-inducing stenosis and guide myocardial revascularization strategy in patients with coronary artery disease. Further, FFR has been shown to be a strong and independent predictor of major adverse cardiac events after stent implantation. A lower value of FFR after stent implantation is associated with a worse clinical prognosis, without a clearly defined threshold above which clinical follow up are similar for all FFR values. Among 750 patients in the Fractional Flow Reserve Post-Stent Registry, the event rate was 29.5% in patients with FFR\<0.80 compared to 9 4.9% in patients with FFR\>0.95 (p\<0.001). However, FFR remains poorly adopted in many cathlabs, partly because of procedural time, discomfort or sides effect during hyperemia, non-uniform adenosine response and economical constraints. This leads to the validation of resting indices (instantaneous wave-free ratio (iFR), diastolic pressure ratio (dPR), and resting full-cycle ratio (RFR) among others). Those indices evaluate coronary physiology without the use of maximal hyperemia and have 15 slightly different threshold compared to FFR (≤0.89 vs 0.80, for iFR and RFR, and FFR 16 respectively).In the VALIDATE RFR study, a head-to-head comparison of RFR and iFR from a retrospective analysis, diagnostic accuracy of RFR was 97.4% with an area under the curve 1 (AUC) of 99.6%. In the more recent RE-VALIDATE RFR study, 431 patients with 501 lesions 2 were prospectively evaluated for the diagnostic performance of RFR in all-comers patients. Compared to iFR, RFR achieved high diagnostic accuracy, sensitivity and specificity. These are the reasons why we designed a prospective, non-randomized, clinical trial, to better 18 explore the value of RFR before and after PCI in real live and after optimization by post dilation 19 in all-comers patients with coronary artery disease in the Middle East region..

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
3

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Jun 2021

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
terminated

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

First Submitted

Initial submission to the registry

December 17, 2020

Completed
5 days until next milestone

First Posted

Study publicly available on registry

December 22, 2020

Completed
6 months until next milestone

Study Start

First participant enrolled

June 6, 2021

Completed
25 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2021

Completed
Last Updated

March 13, 2023

Status Verified

March 1, 2023

Enrollment Period

25 days

First QC Date

December 17, 2020

Last Update Submit

March 10, 2023

Conditions

Keywords

Percutaneous Coronary InterventionFractional Flow ReserveResting Full Cycle Ratio

Outcome Measures

Primary Outcomes (1)

  • RFRpre vs. RFRfinal

    comparison between RFR (Resting Full Cycle Ratio) before and after optimized PCI (RFRpre vs. RFRfinal) in all included lesions

    Intra operative, up to 1 month

Secondary Outcomes (15)

  • RFRpre vs. RFRpost

    Intra operative, up to 1 month

  • RFRpost vs. RFRfinal

    Intra operative, up to 1 month

  • FFRpre vs. FFRpost

    Intra operative, up to 1 month

  • FFRpost vs. FFRfinal

    Intra operative, up to 1 month

  • FFRpre vs. FFRfinal

    Intra operative, up to 1 month

  • +10 more secondary outcomes

Eligibility Criteria

Age21 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Male and female subjects could be enrolled in the present study if they are 21 years old or older at the time of inclusion. The trial will enroll 100 patients who need to meet ALL eligibility criteria and provide written informed consent prior to inclusion.

You may qualify if:

  • Patient is ≥ 21 years
  • The patient is deemed eligible for PCI of at least one coronary stenosis (RFRpre ≤0.89 or FFR≤0.80)
  • The patient is able and is willing to comply with all study procedures and process.

You may not qualify if:

  • The patient is in cardiogenic shock
  • The patient has a bifurcation lesion that requires a planned two stents technique
  • The patient refuses to participate.
  • The patient suffers acute coronary syndrome and should be treated by PCI in the culprit lesion (non-culprit lesions in non-culprit vessel could be included)
  • The patient has an ostial stenosis to be treated by PCI

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Al Qassimi Hospital

Sharjah city, United Arab Emirates

Location

Related Publications (18)

  • 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.

  • Fearon WF, Luna J, Samady H, Powers ER, Feldman T, Dib N, Tuzcu EM, Cleman MW, Chou TM, Cohen DJ, Ragosta M, Takagi A, Jeremias A, Fitzgerald PJ, Yeung AC, Kern MJ, Yock PG. Fractional flow reserve compared with intravascular ultrasound guidance for optimizing stent deployment. Circulation. 2001 Oct 16;104(16):1917-22. doi: 10.1161/hc4101.097539.

  • Pijls NH, Klauss V, Siebert U, Powers E, Takazawa K, Fearon WF, Escaned J, Tsurumi Y, Akasaka T, Samady H, De Bruyne B; Fractional Flow Reserve (FFR) Post-Stent Registry Investigators. Coronary pressure measurement after stenting predicts adverse events at follow-up: a multicenter registry. Circulation. 2002 Jun 25;105(25):2950-4. doi: 10.1161/01.cir.0000020547.92091.76.

  • Doh JH, Nam CW, Koo BK, Lee SY, Choi H, Namgung J, Kwon SU, Kwak JJ, Kim HY, Choi WH, Lee WR. Clinical Relevance of Poststent Fractional Flow Reserve After Drug-Eluting Stent Implantation. J Invasive Cardiol. 2015 Aug;27(8):346-51.

  • Agarwal SK, Kasula S, Hacioglu Y, Ahmed Z, Uretsky BF, Hakeem A. Utilizing Post-Intervention Fractional Flow Reserve to Optimize Acute Results and the Relationship to Long-Term Outcomes. JACC Cardiovasc Interv. 2016 May 23;9(10):1022-31. doi: 10.1016/j.jcin.2016.01.046.

  • Li SJ, Ge Z, Kan J, Zhang JJ, Ye F, Kwan TW, Santoso T, Yang S, Sheiban I, Qian XS, Tian NL, Rab TS, Tao L, Chen SL. Cutoff Value and Long-Term Prediction of Clinical Events by FFR Measured Immediately After Implantation of a Drug-Eluting Stent in Patients With Coronary Artery Disease: 1- to 3-Year Results From the DKCRUSH VII Registry Study. JACC Cardiovasc Interv. 2017 May 22;10(10):986-995. doi: 10.1016/j.jcin.2017.02.012. Epub 2017 Apr 26.

  • Hwang D, Lee JM, Lee HJ, Kim SH, Nam CW, Hahn JY, Shin ES, Matsuo A, Tanaka N, Matsuo H, Lee SY, Doh JH, Koo BK. Influence of target vessel on prognostic relevance of fractional flow reserve after coronary stenting. EuroIntervention. 2019 Aug 29;15(5):457-464. doi: 10.4244/EIJ-D-18-00913.

  • Davies JE, Sen S, Dehbi HM, Al-Lamee R, Petraco R, Nijjer SS, Bhindi R, Lehman SJ, Walters D, Sapontis J, Janssens L, Vrints CJ, Khashaba A, Laine M, Van Belle E, Krackhardt F, Bojara W, Going O, Harle T, Indolfi C, Niccoli G, Ribichini F, Tanaka N, Yokoi H, Takashima H, Kikuta Y, Erglis A, Vinhas H, Canas Silva P, Baptista SB, Alghamdi A, Hellig F, Koo BK, Nam CW, Shin ES, Doh JH, Brugaletta S, Alegria-Barrero E, Meuwissen M, Piek JJ, van Royen N, Sezer M, Di Mario C, Gerber RT, Malik IS, Sharp ASP, Talwar S, Tang K, Samady H, Altman J, Seto AH, Singh J, Jeremias A, Matsuo H, Kharbanda RK, Patel MR, Serruys P, Escaned J. Use of the Instantaneous Wave-free Ratio or Fractional Flow Reserve in PCI. N Engl J Med. 2017 May 11;376(19):1824-1834. doi: 10.1056/NEJMoa1700445. Epub 2017 Mar 18.

  • Gotberg M, Christiansen EH, Gudmundsdottir IJ, Sandhall L, Danielewicz M, Jakobsen L, Olsson SE, Ohagen P, Olsson H, Omerovic E, Calais F, Lindroos P, Maeng M, Todt T, Venetsanos D, James SK, Karegren A, Nilsson M, Carlsson J, Hauer D, Jensen J, Karlsson AC, Panayi G, Erlinge D, Frobert O; iFR-SWEDEHEART Investigators. Instantaneous Wave-free Ratio versus Fractional Flow Reserve to Guide PCI. N Engl J Med. 2017 May 11;376(19):1813-1823. doi: 10.1056/NEJMoa1616540. Epub 2017 Mar 18.

  • Svanerud J, Ahn JM, Jeremias A, van 't Veer M, Gore A, Maehara A, Crowley A, Pijls NHJ, De Bruyne B, Johnson NP, Hennigan B, Watkins S, Berry C, Oldroyd KG, Park SJ, Ali ZA. Validation of a novel non-hyperaemic index of coronary artery stenosis severity: the Resting Full-cycle Ratio (VALIDATE RFR) study. EuroIntervention. 2018 Sep 20;14(7):806-814. doi: 10.4244/EIJ-D-18-00342.

  • Lee JM, Choi KH, Park J, Hwang D, Rhee TM, Kim J, Park J, Kim HY, Jung HW, Cho YK, Yoon HJ, Song YB, Hahn JY, Nam CW, Shin ES, Doh JH, Hur SH, Koo BK. Physiological and Clinical Assessment of Resting Physiological Indexes. Circulation. 2019 Feb 12;139(7):889-900. doi: 10.1161/CIRCULATIONAHA.118.037021.

  • Mallidi J, Atreya AR, Cook J, Garb J, Jeremias A, Klein LW, Lotfi A. Long-term outcomes following fractional flow reserve-guided treatment of angiographically ambiguous left main coronary artery disease: A meta-analysis of prospective cohort studies. Catheter Cardiovasc Interv. 2015 Jul;86(1):12-8. doi: 10.1002/ccd.25894. Epub 2015 Mar 19.

  • Shaheen M, Mokarrab M, Youssef A, Aref M, Abushouk AI, Elmaraezy A, Almasswary A. Physiological evaluation of the provisional side-branch intervention strategy for bifurcation lesions using instantaneous wave-free ratio. Indian Heart J. 2018 Dec;70 Suppl 3(Suppl 3):S254-S258. doi: 10.1016/j.ihj.2018.01.028. Epub 2018 Jan 31.

  • Kobayashi Y, Johnson NP, Berry C, De Bruyne B, Gould KL, Jeremias A, Oldroyd KG, Pijls NHJ, Fearon WF; CONTRAST Study Investigators. The Influence of Lesion Location on the Diagnostic Accuracy of Adenosine-Free Coronary Pressure Wire Measurements. JACC Cardiovasc Interv. 2016 Dec 12;9(23):2390-2399. doi: 10.1016/j.jcin.2016.08.041. Epub 2016 Nov 9.

  • van Zandvoort LJC, Masdjedi K, Witberg K, Ligthart J, Tovar Forero MN, Diletti R, Lemmert ME, Wilschut J, de Jaegere PPT, Boersma E, Zijlstra F, Van Mieghem NM, Daemen J. Explanation of Postprocedural Fractional Flow Reserve Below 0.85. Circ Cardiovasc Interv. 2019 Feb;12(2):e007030. doi: 10.1161/CIRCINTERVENTIONS.118.007030.

  • Meneveau N, Souteyrand G, Motreff P, Caussin C, Amabile N, Ohlmann P, Morel O, Lefrancois Y, Descotes-Genon V, Silvain J, Braik N, Chopard R, Chatot M, Ecarnot F, Tauzin H, Van Belle E, Belle L, Schiele F. Optical Coherence Tomography to Optimize Results of Percutaneous Coronary Intervention in Patients with Non-ST-Elevation Acute Coronary Syndrome: Results of the Multicenter, Randomized DOCTORS Study (Does Optical Coherence Tomography Optimize Results of Stenting). Circulation. 2016 Sep 27;134(13):906-17. doi: 10.1161/CIRCULATIONAHA.116.024393. Epub 2016 Aug 29.

  • Thygesen K, Alpert JS, Jaffe AS, Chaitman BR, Bax JJ, Morrow DA, White HD; Executive Group on behalf of the Joint European Society of Cardiology (ESC)/American College of Cardiology (ACC)/American Heart Association (AHA)/World Heart Federation (WHF) Task Force for the Universal Definition of Myocardial Infarction. Fourth Universal Definition of Myocardial Infarction (2018). J Am Coll Cardiol. 2018 Oct 30;72(18):2231-2264. doi: 10.1016/j.jacc.2018.08.1038. Epub 2018 Aug 25. No abstract available.

  • Cutlip DE, Windecker S, Mehran R, Boam A, Cohen DJ, van Es GA, Steg PG, Morel MA, Mauri L, Vranckx P, McFadden E, Lansky A, Hamon M, Krucoff MW, Serruys PW; Academic Research Consortium. Clinical end points in coronary stent trials: a case for standardized definitions. Circulation. 2007 May 1;115(17):2344-51. doi: 10.1161/CIRCULATIONAHA.106.685313.

MeSH Terms

Conditions

Coronary Artery Disease

Condition Hierarchy (Ancestors)

Coronary DiseaseMyocardial IschemiaHeart DiseasesCardiovascular DiseasesArteriosclerosisArterial Occlusive DiseasesVascular Diseases

Study Officials

  • Arif Al Nooryani

    Al Qassimi Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 17, 2020

First Posted

December 22, 2020

Study Start

June 6, 2021

Primary Completion

July 1, 2021

Study Completion

July 1, 2021

Last Updated

March 13, 2023

Record last verified: 2023-03

Data Sharing

IPD Sharing
Will not share

Locations