Optical Coherence Tomography Following Paclitaxel Eluting Stent Implantation in Multivessel Coronary Artery Disease (OCTAXUS)

February 5, 2010 updated by: A.O. Ospedale Papa Giovanni XXIII

A Prospective Optical Coherence Tomography Study on Completeness of Strut Coverage and Vessel Wall Response at 3-6 and 9 Months Following Paclitaxel Eluting Stent Implantation in Multivessel Coronary Artery Disease

A prospective Optical Coherence Tomography (OCT) study on the completeness of strut coverage and vessel wall response, at different time points (3-6-9 Months), following TAXUS Liberte stent implantation (staged procedures) in patients with multi vessel native coronary artery lesions

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Major concerns were addressed to the delayed healing process of drug-eluting stents in off-label indications. To date no studies have detailed the in-vivo completeness of DES coverage at different time points. The objective of this prospective study is to measure the completeness of strut coverage and vessel wall response (neointima disomogeneity, acquired late incomplete strut apposition) at different time points following paclitaxel-eluting stent implantation, in patients with multivessel disease treated with staged PCI procedures. Optical Coherence Tomography (OCT) that detects smaller degrees of stent strut coverage more accurately than IVUS will be used at different time point. Intravascular ultrasound (IVUS) will be performed as per normal practice at any index procedures and 9 months elective follow-up.

Study Type

Interventional

Enrollment (Anticipated)

30

Phase

  • Phase 4

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

  • Italy
      • Bergamo, Italy, 24100
        • Ospedali Riuniti di Bergamo

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:

  1. Multivessel coronary artery disease (two or 3 VD) to be treated at 2 sequences (staged procedures) with paclitaxel-polymer eluting stents
  2. Native coronary artery disease with >= 75% diameter stenosis
  3. Vessel size in between 2.5 and 3.5 mm.
  4. Written informed consent signed

Exclusion Criteria:

  1. No suitable anatomy for OCT scan: (truly ostial , tortuous anatomy, very distal lesions or vessels larger than 3.75 in reference diameter).
  2. significant left main coronary artery disease,
  3. lesions in bypass grafts,
  4. acute myocardial infarction,
  5. poor cardiac function as defined by left ventricular ejection fraction ≤ 30%.
  6. allergy to aspirin and or clopidogrel/ticlopidine,
  7. Renal failure with creatinine value > 2.5 mg/dl

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: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: A
Device, paclitaxel drug-eluting stent
Device: Taxus Libertè™ paclitaxel drug-eluting stent
device:Taxus Libertè™ (Boston Scientific,Natick,MS)assessed at different time points after implant
Other Names:
  • Taxus Libertè™ (Boston Scientific,Natick,MS)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Proportion of uncovered and/or malapposed Taxus Libertè struts at different time point after the implant, as measured by OCT
Time Frame: 3-6-9 months
3-6-9 months

Secondary Outcome Measures

Outcome Measure
Time Frame
% Incomplete apposition at different point of FU (3-6-9 months)
Time Frame: 3-6-9 months
3-6-9 months
Proportion of neointima disomogeneity around struts at different point of FU (3-6-9 months)
Time Frame: 3-6-9 months
3-6-9 months
OCT Neointima thickness overtime
Time Frame: 3-6-9 months
3-6-9 months
Ischemia Driven Target Vessel Failure (ID-TVF) rate at 12 months
Time Frame: 12 months
12 months
Adjudicated MACE rate at 30 days and 12 months
Time Frame: 30 days and 12 months
30 days and 12 months

Collaborators and Investigators

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

Sponsor

A.O. Ospedale Papa Giovanni XXIII

Collaborators

Boston Scientific Corporation
Case Western Reserve University

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

November 1, 2007

Primary Completion (Actual)

August 1, 2009

Study Completion (Actual)

November 1, 2009

Study Registration Dates

First Submitted

June 20, 2008

First Submitted That Met QC Criteria

June 23, 2008

First Posted (Estimate)

June 24, 2008

Study Record Updates

Last Update Posted (Estimate)

February 9, 2010

Last Update Submitted That Met QC Criteria

February 5, 2010

Last Verified

February 1, 2010

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1087/2007

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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