OPtimized Stenting Using Intravascular Ultrasound(IVUS) in Long lEsion: Rationale for Simplified criteriA (OPERA)

January 21, 2020 updated by: Centre Chirurgical Marie Lannelongue

OPtimized Stenting Using IVUS in Long lEsion: Rationale for Simplified criteriA

Rationale IVUS has shown to be efficient for bare metal stent deployment, but has not been specifically studied for Drug Eluting Stents. The angiographically versus IVUS optimization (AVIO) study was performed with (medical device's type )Promus stent, results are promising, but the study was not designed for clinical endpoint.

There is no consensus on IVUS criteria for stent deployment. The MUSIC criteria were widely used in the early 2000, but have limitations for complex long lesions. The AVIO criteria were recently proposed for complex lesions, but these criteria also have some issues and the complexity make their routine use challenging.

We performed a pilot study for long complex lesion analysis using IVUS, in order to define easy to use criteria, applicable for complex lesions in drug eluting stents (DES) era. The new criteria (OPERA) are an adaptation of the MUSIC criteria.

OTELLO study is an ongoing trial sponsored by Boston Scientific Inc, to determine Major Adverse Cardiac Event with the new TAXUS Element stent. 500 patients will be enrolled in the study.

Main question Is IVUS using simplified new criteria beneficial for long (>28mm) TAXUS element stent deployment?

Study design This study will consist to prospectively include consecutive patients with>28mm taxus element stent using IVUS. OPERA Criteria for stent deployment will be the objectives to reach. OPERA is an adaptation of the MUSIC criteria for long complex lesion. The patients from the OTELLO study, with the same inclusion criteria, will composed the control group . Population will be matched using the propensity score.

20 to 30 French centers involved in OTELLO study will be contacted for participating in OPERA.

Hypothesis:

Long lesion percutaneous coronary intervention(PCI) have specific characteristics like Diffuse old atheroma Calcifications Discrepancies between prox and distal diameter Infiltration longer than the target lesion Bifurcations Inhomogeneous strength due to the balloon (Laplace law) Primary hypothesis Long Taxus element deployed using IVUS and OPERA criteria have better outcomes than without IVUS

Primary Objectives 38% MACE (SAT, target lesion revascularization (TLR), myocardial infarction (MI), Death) reduction using IVUS and OPERA criteria for Taxus element ≥ 28 mm implantation

Secondary endpoint

  1. MACE determination for Taxus element ≥ 28 mm implantation with IVUS and OPERA criteria
  2. Safety: procedural Stroke, Urgent cardiac surgery, procedural MI
  3. Comparison of IVUS criteria: OPERA, MUSIC, AVIO

Secondary objectives Safety of OPERA criteria Feasibility of using OPERA criteria in non expert IVUS center MACE determination with a 4% margin error for Taxus element ≥ 28 mm implantation with IVUS and OPERA criteria

Methods Inclusion of consecutive patients using IVUS Taxus element ≥ 28 mm in a multicentric study propensity score matched analysis matched for comparison to OTELLO study. (Same inclusion criteria as OTELLO)

Statistical analysis Primary Endpoint: MACE expected in the OTELLO study=18% MACE expected in the OPERA study=11% Number of patient in the OTELLO study=500 Alpha=0.05,1- Beta=0.73 Number of patients analysable in the OPERA study needed =250 patients i.e 300 pts inclusions.

Secondary Endpoint 4% margin error with a MACE of 11% need also 250 pts

Type of study Biomedical research French study Centralized IVUS analysis 1, 6 and 12 months telephone contact

Safety and efficacy measures Efficacy: MACE (Cardiac Death, target vessel revascularization (TVR), Myocardial Infarction) at 12 months Safety: procedure related event: Urgent surgery, According to Good Clinical Practices serious adverse event (SAE) declared within 24 Hours

Study Overview

Study Type

Interventional

Enrollment (Anticipated)

300

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 Locations

    • Ile De France
      • Le Plessis Robinson, Ile De France, France, 92350
        • Centre chirurgical Marie Lannelongue

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:

  • Age > 18 years
  • Patients who have had a coronary angioplasty with implantation of a TAXUS™ Element™ stent of 28, 32 and 38 mm in length and up to 3 stents per patient in the case of acute occlusive dissection deployed using IVUS
  • Patients with indication of Taxus™ Element™ stent included in the List of Reimbursable Products and Supplies (LPPR):
  • diabetes,
  • small vessel (less than 3 mm in diameter),
  • long lesion(s) (more than 15 mm long),
  • chronic total occlusion > 1 month,
  • intra-stent restenosis with the exclusion drug eluting stent(s), restenosis of
  • people with a lesion that is accessible to IVUS after stenting
  • people who have provided consent for collection of medical data for this trial.

Exclusion Criteria:

-Those who refuse to consent to the collection and/or processing of data necessary to complete the trial and/or the centralized follow-up

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: New OPERA Criteria
TAXUS™ Element long stent
Segments are selected using bifurcation branch take-off. The reference is selected or estimated on both sides of the bifurcation and is applied to the concerned segment. The objective is to attain > 80% of the reference cross-sectional areas (CSA) per segment. The balloon diameter is adapted to the endoluminal diameter of the reference.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The incidence of MACE composite criteria among patients who received a TAXUS long stent deployed using IVUS according to the OPERA criteria according to the LPPR during a 12 months period after inclusion in the trial.
Time Frame: 12 months period after inclusion in the trial

The MACE composite criteria includes all cardiac deaths and infarctions in the regions of treated lesions as well as revascularization of treated lesions (via iterative angioplasty or aortocoronary bypass) of lesion(s) that receive TAXUS long stent according to the Commission Evaluation of Products and Service (CEPP) over a 12 months period after inclusion in the trial.

To demonstrate improvement of MACE during deployment of 28, 32 and 38 mm TAXUS™ Element™ stents using IVUS. The main objective of the trial is the collection of health data, especially the rate of serious cardiac events at 12 months in the indications recognized by the LPPR. These events are represented by a MACE composite criteria at 1 year, including all cardiac deaths and infarctions in the region of the stented artery and revascularization of the stented artery (TVR) where the reference population is the OTELLO population.

12 months period after inclusion in the trial

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The incidence of the MACE composite criteria at 6 months, 12 months and 3 years.
Time Frame: 6 months, 12 months and 3 years
6 months, 12 months and 3 years
The incidence of individual components of the MACE composite criteria at 6 months, 12 months and 3 years.
Time Frame: 6 months, 12 months and 3 years
Cardiac deaths and infarctions in the region of the stented artery, revascularization of the stented artery
6 months, 12 months and 3 years
The occurrence of follow-on events over a period of 6 months, 12 months and 3 years.
Time Frame: 6 months, 12 months and 3 years
Death from all causes, all myocardia infarctions, all revascularizations.
6 months, 12 months and 3 years
Stent thrombosis at 12 months
Time Frame: 12 months
12 months
Medico-economics data at 12 months including
Time Frame: At 12 months including
  • the number of secondary hospitalizations for cardiac problems
  • the number of hospitalizations for problem non cardiac but associated with the procedure
  • the number of new coronary angiographies
  • the number de new angioplasties
  • the number of Coronary Artery Bypass Grafting (CABG)
  • the number and type of other additional examinations
  • the number and type of special consultations during the monitoring period
At 12 months including

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.

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

October 1, 2012

Primary Completion (Actual)

April 1, 2017

Study Completion (Actual)

July 1, 2018

Study Registration Dates

First Submitted

May 16, 2013

First Submitted That Met QC Criteria

May 23, 2013

First Posted (Estimate)

May 24, 2013

Study Record Updates

Last Update Posted (Actual)

January 23, 2020

Last Update Submitted That Met QC Criteria

January 21, 2020

Last Verified

July 1, 2018

More Information

Terms related to this study

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