Validation Of Quantitative Flow Ratio (QFR) - Derived Virtual Angioplasty (QIMERA-I)

September 23, 2021 updated by: Carlos Baladron, PhD, Hospital Clínico Universitario de Valladolid
Prospective intervention study to assess the accuracy of the predicted QFR-derived virtual angioplasty compared to hyperaemic and non-hyperaemic pressure-wire derived indexes after PCI, as well as with QFR post-PCI.

Study Overview

Status

Recruiting

Conditions

Study Type

Interventional

Enrollment (Anticipated)

100

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

      • Lugo, Spain
        • Recruiting
        • Hospital de Lugo
        • Contact:
          • Raymundo Ocaranza-Sanchez, PhD, MD
      • Madrid, Spain
        • Recruiting
        • Hospital Clinico San Carlos
        • Contact:
          • Javier Escaned, PhD, MD
      • Murcia, Spain
        • Recruiting
        • Hospital Clinico Universitario Virgen de la Arrixaca
        • Contact:
          • Eduardo Pinar, PhD
        • Sub-Investigator:
          • Ramon López-Palop, PhD, MD
      • Valladolid, Spain, 47003
        • Recruiting
        • Hospital Clínico Universitario de Valladolid
        • Contact:
          • Carlos Baladron, Dr.
          • Phone Number: 983420000
        • Principal Investigator:
          • Alfredo Redondo-Diéguez, MD
        • Principal Investigator:
          • Ignacio J Amat-Santos, PhD, MD
    • La Coruña
      • Santiago De Compostela, La Coruña, Spain
        • Recruiting
        • Complejo Hospitalario Universitario, Santiago de Compostela
        • Contact:
          • José R Rumoroso, MD
        • Sub-Investigator:
          • Mario Sadaba

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients submitted to a coronary angiogram with at least one non-left main stable coronary stenosis with PCI indication.

Exclusion Criteria:

  • Severe stenosis of the left main coronary artery.
  • Patients admitted with ST-elevation myocardial infarction.
  • Culprit lesions in Non-ST-Elevation Acute Coronary Syndromes (NSTEACS) patients.
  • Unability to identify the culprit lesion in NSTE-ACS patients.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: DIAGNOSTIC
  • Allocation: NA
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: QFR Intervention
Patients submitted to a coronary angiogram with at least one non-left main stable coronary stenosis between 50 and 90% and PCI indication with paired assessment of QFR, dFR, RFR and FFR, before and after PCI once informed consent is provided.
Quantitative flow ratio (QFR) is a novel approach enabling rapid computation of FFR pullbacks from three-dimensional quantitative coronary angiography (3D-QCA) without using a pressure wire.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Numerical agreement between predicted post PCI QFR (residual QFR) and post PCI dPR RFR-FFR, as well as direct QFR post-PCI mesurement.
Time Frame: 1 hour
1 hour

Secondary Outcome Measures

Outcome Measure
Time Frame
Sensitivity
Time Frame: 1 hour
1 hour
Specificity
Time Frame: 1 hour
1 hour
Summary of the receiver-operator characteristics curve (sROC)
Time Frame: 1 hour
1 hour
Negative predictive value
Time Frame: 1 hour
1 hour
Positive predictive value
Time Frame: 1 hour
1 hour
Positive likelihood ratio
Time Frame: 1 hour
1 hour
Negative likelihood ratio
Time Frame: 1 hour
1 hour
Identification of independent predictors for increased predicted postPCI QFR (residual QFR) and post PCI dPR-RFR-FFR.
Time Frame: 1 hour
1 hour

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

January 1, 2020

Primary Completion (ANTICIPATED)

December 31, 2021

Study Completion (ANTICIPATED)

January 31, 2022

Study Registration Dates

First Submitted

December 13, 2019

First Submitted That Met QC Criteria

December 13, 2019

First Posted (ACTUAL)

December 16, 2019

Study Record Updates

Last Update Posted (ACTUAL)

September 24, 2021

Last Update Submitted That Met QC Criteria

September 23, 2021

Last Verified

September 1, 2021

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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