NCT05496023

Brief Summary

To investigate the feasibility of physiological map generated from angiography-derived fractional flow reserve (FFR) (angio-FFR) pullback and its value in predicting physiological and clinical outcomes after stenting.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
329

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2017

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

January 1, 2017

Completed
5.6 years until next milestone

First Submitted

Initial submission to the registry

August 7, 2022

Completed
3 days until next milestone

First Posted

Study publicly available on registry

August 10, 2022

Completed
20 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 30, 2022

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2022

Completed
Last Updated

August 10, 2022

Status Verified

August 1, 2022

Enrollment Period

5.7 years

First QC Date

August 7, 2022

Last Update Submit

August 8, 2022

Conditions

Outcome Measures

Primary Outcomes (3)

  • Propotion of angio-FFR based physiological map successfully created

    Propotion of successful angio-FFR based physiological map created by overlaying the angio-FFR based pullback onto coronary angiogram will be calculated

    Immediate after angiography

  • Correlation of predicted post-PCI angio-FFR by physiological map with angio-FFR after PCI

    Pearson Correlation analysis will be performed to assess the correlation of predicted post-PCI angio-FFR by physiological map with angio-FFR after PCI

    Immediate post-PCI

  • Agreement of predicted post-PCI angio-FFR by physiological map with angio-FFR after PCI

    Bland-altman analysis will be performed to assess the agreement of predicted post-PCI angio-FFR by physiological map with angio-FFR after PCI

    Immediate post-PCI

Secondary Outcomes (7)

  • Correlation of pre-PCI angio-FFR with pre-PCI FFR

    Immediate after pre-PCI FFR measurement

  • Agreement of pre-PCI angio-FFR with pre-PCI FFR

    Immediate after pre-PCI FFR measurement

  • Correlation of post-PCI angio-FFR with post-PCI FFR

    Immediate post-PCI FFR measurement

  • Agreement of post-PCI angio-FFR with post-PCI FFR

    Immediate post-PCI FFR measurement

  • Correlation of pre-PCI angio-FFR derived pullback pressure gradient (PPG) with post-PCI angio-FFR

    Immediate post-PCI

  • +2 more secondary outcomes

Study Arms (2)

Pre PCI state

The current study will analyze the angio-FFR and generate the virtual pullback. The pullback will be co-registered by overlaying the pullback onto coronary angiogram.

Device: Percutaneous coronary intervention

Post-PCI state

The post-PCI FFR and angio-FFR will be meaured.

Interventions

1. Pre-PCI angio-FFR was calculated and virtual pullback was generated 2. Automated algorithm to calculate delta angio-FFR per unit length and co-registered onto coronary angiogram was developed 3. PCI was performed using 2nd generation DES

Pre PCI state

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients who diagnosed obstructive coronary artery disease and evaluated by pre-PCI FFR measurement, then treated by DES with invasive physiologic evaluation at the index procedure.

You may qualify if:

  • any patient meets eligible criteria who underwent PCI with DES followed by invasive physiologic assessment at the index procedure
  • any patient who underwent PCI for lesions with pre-PCI FFR\<=0.80
  • available of both pre- and post-PCI FFR measurement
  • available of both pre- and post-PCI angio-FFR calculation
  • available of pre-PCI co-registration of angio-FFR with coronary angiogram

You may not qualify if:

  • unavailable pre-PCI angio-FFR calculation and co-registration with coronary angiogram
  • unavailable post-PCI angio-FFR calculation
  • culprit vessel of acute coronary syndrome
  • failed achieving TIMI 3 flow at the end of PCI
  • left ventricular ejection fraction \<30%
  • graft vessel
  • collateral feeder
  • in-stent restenosis
  • primary myocardial or valvular heart disease
  • in patient whose life expectancy less than 2 years
  • visible thrombus of target vessel segment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Zhongshan Hospital of Fudan University

Shanghai, 200032, China

RECRUITING

Related Publications (3)

  • Dai N, Che W, Liu L, Zhang W, Yin G, Xu B, Xu Y, Duan S, Yu H, Li C, Yao K, Huang D, Ge J. Diagnostic Value of Angiography-Derived IMR for Coronary Microcirculation and Its Prognostic Implication After PCI. Front Cardiovasc Med. 2021 Oct 15;8:735743. doi: 10.3389/fcvm.2021.735743. eCollection 2021.

    PMID: 34722667BACKGROUND
  • Shin D, Dai N, Lee SH, Choi KH, Lefieux A, Molony D, Hwang D, Kim HK, Jeon KH, Lee HJ, Jang HJ, Ha SJ, Park TK, Yang JH, Song YB, Hahn JY, Choi SH, Doh JH, Shin ES, Nam CW, Koo BK, Gwon HC, Ge J, Lee JM. Physiological Distribution and Local Severity of Coronary Artery Disease and Outcomes After Percutaneous Coronary Intervention. JACC Cardiovasc Interv. 2021 Aug 23;14(16):1771-1785. doi: 10.1016/j.jcin.2021.06.013.

    PMID: 34412795BACKGROUND
  • Dai N, Hwang D, Lee JM, Zhang J, Jeon KH, Paeng JC, Cheon GJ, Koo BK, Ge J. Feasibility of Quantitative Flow Ratio-Derived Pullback Pressure Gradient Index and Its Impact on Diagnostic Performance. JACC Cardiovasc Interv. 2021 Feb 8;14(3):353-355. doi: 10.1016/j.jcin.2020.10.036. No abstract available.

    PMID: 33541549BACKGROUND

MeSH Terms

Conditions

Coronary Artery Disease

Interventions

Percutaneous Coronary Intervention

Condition Hierarchy (Ancestors)

Coronary DiseaseMyocardial IschemiaHeart DiseasesCardiovascular DiseasesArteriosclerosisArterial Occlusive DiseasesVascular Diseases

Intervention Hierarchy (Ancestors)

Endovascular ProceduresVascular Surgical ProceduresCardiovascular Surgical ProceduresSurgical Procedures, OperativeMinimally Invasive Surgical Procedures

Study Officials

  • Junbo Ge, MD

    Fudan University

    STUDY CHAIR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 7, 2022

First Posted

August 10, 2022

Study Start

January 1, 2017

Primary Completion

August 30, 2022

Study Completion

October 1, 2022

Last Updated

August 10, 2022

Record last verified: 2022-08

Locations