Multicentre Registry of CCTA, IVUS and OCT

November 25, 2024 updated by: Cleerly, Inc.

Registry of Coronary Computed Tomography Angiography Intravenous Ultrasound and Optical Coherence Tomography to Compare Invasive/Non-invasive Imaging Modalities for Determination of Severity Volume and Type of Coronary Atherosclerosis

The Invictus Registry will compare the diagnostic performance of coronary computed tomography angiography (CCTA) versus intravascular imaging by intravenous ultrasound (IVUS) or optical coherence tomography (OCT) for the measurement of minimum lumen area, the identification of stenosis severity, burden, morphology and vulnerability of coronary atherosclerosis.

Study Overview

Status

Active, not recruiting

Detailed Description

Clinical Significance:

Coronary computed tomographic angiography (CCTA) is a robust non-invasive modality to evaluate the presence, extent and severity of Coronary Artery Disease (CAD). For a plaque assessment, previous studies demonstrated that CCTA provides a high correlation with intravascular imaging by intravenous ultrasound (IVUS) in assessing coronary plaque characteristics stenosis severity and volume. High risk (vulnerable) plaque characteristics (positive remodeling, low attenuation plaque, spotty calcifications) are recognized to be more prone to rupture with increased rates of short-term cardiovascular disease events. Although several studies similarly demonstrated the good concordance between CCTA and IVUS or optical coherence tomography (OCT) in assessing high risk plaque features, patient numbers in these prior studies were limited to fully understand the effect of CCTA for the assessment of coronary atherosclerotic plaque features.

The Research is a multi-center, registry enrolling patients with single/multi vessel atherosclerotic coronary artery disease. The study will be conducted in up to 15 Medical Centers in Japan. In each patient, a CCTA, IVUS), and/ or OCT will be performed, to provide a total of 1,300 vessels from 1,000 patients. Thus, the full cohort (Prospective plus Retrospective patients) will provide a total of 2,000 vessels as basis for a diagnostic performance comparison between CCTA and IVUS or OCT. Accrual is expected to take 24 months.

Study Type

Observational

Enrollment (Estimated)

1700

Contacts and Locations

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

Study Locations

      • Ehime, Japan
        • Ehime University
      • Hiroshima, Japan
        • Hiroshima University
      • Matsuyama, Japan
        • Yotsuba Circulation Clinic
      • Okayama, Japan
        • Okayama Red Cross Hospital
      • Tokyo, Japan
        • Juntendo University
      • Tokyo, Japan, 143-8540
        • Toho University Omori Medical Center
      • Tokyo, Japan
        • Edogawa Hospital
      • Tokyo, Japan
        • Sakakibara Heart Institute
      • Tokyo, Japan
        • Tokai University

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

N/A

Sampling Method

Probability Sample

Study Population

Patients with single/multi vessel atherosclerotic coronary artery disease

Description

Inclusion Criteria:

  • Signed informed consent, inclusive of release of medical information, and Health Insurance Portability and Accountability Act (HIPAA) documentation
  • Age 18 years or older
  • Known or suspected Coronary Artery Disease and subsequently indicated for coronary artery angiography

Exclusion Criteria:

  • Individuals unable to provide informed consent
  • Acute ST elevation myocardial infarction
  • Pregnant woman
  • Angiographically visible thrombus at the site of the lesion interrogated by IVUS or OCT
  • Patients with lesions required balloon angioplasty before OCT and/or IVUS

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

  • Observational Models: Cohort
  • Time Perspectives: Other

Cohorts and Interventions

Group / Cohort
Retrospective
A total of 700 vessel from 700 patients clinically indicated CCTA and IVUS or OCT performed within 3 months.
Prospective
A total of 1,000 subjects will be enrolled in this Registry. This number of subject is expected to provide a maximum of 1,300 vessels. All CCTA and IVUS/OCT will be performed within 3 months

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To compare the diagnostic performance of CCTA versus IVUS or OCT for the measurement of minimum lumen area.
Time Frame: June 2019- June 2021

Patients will undergo invasive coronary angiography with IVUS/OCT for the measurement of minimum lumen area, the identification of stenosis severity, burden, morphology and vulnerability of coronary atherosclerosis.

The co-registration of IVUS/OCT images with CCTA segmented images will be implemented in the following three stages by locating the corresponding anatomical landmarks/fiduciary points (coronary ostia, side-branches, calcified plaques, and/or overlapping veins) and matching the corresponding coronary segments in all the imaging modalities

June 2019- June 2021

Collaborators and Investigators

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

Sponsor

Investigators

  • Principal Investigator: Rine Nakanishi, MD, Toho University - Omori Medical Center

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)

October 1, 2019

Primary Completion (Actual)

December 31, 2022

Study Completion (Estimated)

December 31, 2025

Study Registration Dates

First Submitted

August 15, 2019

First Submitted That Met QC Criteria

August 20, 2019

First Posted (Actual)

August 26, 2019

Study Record Updates

Last Update Posted (Estimated)

November 26, 2024

Last Update Submitted That Met QC Criteria

November 25, 2024

Last Verified

November 1, 2024

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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