NCT04518826

Brief Summary

This is a prospective single center, randomized controlled clinical study aimed to compare the clinical and angiographic follow-up results of patients with in-stent restenosis(ISR) after coronary drug eluting stent(DES) implantation treated by fractional flow reserve -guided and angiography guided drug eluting balloon(DEB) intervention. This study intends to confirm the clinical benefits of optimizing DEB intervention of DES-ISR by FFR.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
420

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2020

Longer than P75 for all trials

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 15, 2020

Completed
4 days until next milestone

First Posted

Study publicly available on registry

August 19, 2020

Completed
1 month until next milestone

Study Start

First participant enrolled

October 1, 2020

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2022

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2024

Completed
Last Updated

August 19, 2020

Status Verified

August 1, 2020

Enrollment Period

2 years

First QC Date

August 15, 2020

Last Update Submit

August 18, 2020

Conditions

Keywords

fractional flow reservein stent restenosisdrug eluting stent

Outcome Measures

Primary Outcomes (1)

  • target vessel failure

    cardiac death, target vessel myocardial infarction, target vessel failure

    12 month

Secondary Outcomes (2)

  • angiographic outcomes

    12 month

  • target vessel failure

    36 month

Study Arms (2)

FFR

In FFR group, FFR at maximum hyperemia will be measured after pretreatment of DES-ISR lesion by balloons(non-compliant balloon, cutting balloon or scoring balloon). If FFR \<0.9, the operator will dilate the DES-ISR lesion again before another FFR is measured. If FFR\>=0.9, DEB will be used and final FFR will be measured at the end of the procedure.

Device: fractional flow reserve

CAG

In angiography group, the operator will treat the DES-ISR lesion with balloons(non-compliant balloon, cutting balloon or scoring balloon), and then DEB without FFR guidance.

Interventions

FFR is a physiological functional parameter indicating the severity of ischemic myocardium perfused by a diseased coronary artery. It is measured by a pressure wire placed in the coronary artery and calculated by the ratio of pressures distal and proximal to the stenosis.

FFR

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

patients with coronary artery disease and DES implantation.

You may qualify if:

  • In-stent restenosis(ISR) occurred more than 6 months after drug eluting stent (DES) implantation

You may not qualify if:

  • ISR in bare metal stents and biodegradable stents
  • Complicated with immune diseases
  • ISR in left main DES
  • Suffer from renal failure requiring dialysis treatment or is undergoing dialysis treatment
  • Severe cardiac insufficiency (LVEF \<30%)
  • Subjects with ST segment elevation myocardial infarction within 7 days of onset of chest pain
  • Pregnant or lactating women
  • Combined with other diseases, life expectancy \<1 year
  • Follow - up visits required by the protocol cannot be followed, or the investigators believe that the participation of subjects in the trial will increase the risk

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Coronary Artery Disease

Condition Hierarchy (Ancestors)

Coronary DiseaseMyocardial IschemiaHeart DiseasesCardiovascular DiseasesArteriosclerosisArterial Occlusive DiseasesVascular Diseases

Study Officials

  • Junbo Ge, MD

    Fudan University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

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

Study Record Dates

First Submitted

August 15, 2020

First Posted

August 19, 2020

Study Start

October 1, 2020

Primary Completion

October 1, 2022

Study Completion

October 1, 2024

Last Updated

August 19, 2020

Record last verified: 2020-08

Data Sharing

IPD Sharing
Will not share