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Coronary Artery DiseasePhase 4COPENCT00852215

Do Cobalt Chrome Stent and Paclitaxel-Eluting Stent Have Equivalent Clinical Result in Non-Complex Lesion?

A Phase 4 study testing Taxus stent and Vision stent in people with Coronary Artery Disease, run by Samsung Medical Center at 1 site in South Korea.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

We sought to evaluate the long-term safety and efficacy of drug-eluting stent in large vessels compared with bare metal stent. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Coronary Artery Disease
What is being tested?
Taxus stent and Vision stent
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
500 participants
Where
1 siteSouth Korea
Study dates
Aug 2008to Jul 2010
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Angiographically proved significant stenosis in native coronary artery (> 50% diameter stenosis with ischemic symptoms or positive functional study, or > 70% diameter stenosis without ischemic symptoms or positive functional study)
  • planned target lesion number =< 2
  • reference diameter 2.75 - 4.0 mm
  • lesions can be fully covered by one 28 mm or shorter stent

Who cannot join

  • unprotected left main coronary disease with more than 50% stenosis or planned left main angioplasty
  • ostial target lesion (within 5 mm of ostium)
  • angiographic evidence of thrombus within target lesion
  • calcified lesions which cannot be successfully predilated
  • instent restenosis
  • multi-vessel intervention more than 2 lesions
Show all 10Show fewer
  • atherectomy is planned before stenting
  • bifurcation lesion that needs side branch ballooning or stenting
  • Severe left ventricular dysfunction with echocardiographic ejection fraction less than 30%
  • ST-elevation myocardial infarction within the preceding 72 hours

Trial locations and contacts

1 site in 1 country.

Hyeon-Cheol Gwon, MD,PhD contact

82-2-3410-3418

hcgwon@skku.edu

Young Bin Song, MD contact

82-2-3410-3419

youngbin.song@gmail.com

South Korea1 site, 1 recruiting
  • Samsung Medical Center

    Seoul, 135-710

    Hyoen-Cheol Gwon, MD,PhD, 82-2-3410-3418, hcgwon@skku.edu

    Young Bin Song, MD, 82-2-3410-3419, youngbin.song@gmail.com

    Recruiting

Other trials in South Korea

About this study

Official title: Do Cobalt Chrome Stent and Paclitaxel-Eluting Stent Have Equivalent Clinical Result in Non-Complex Lesion? (COPE Study): Long-Term Follow-up Study

We sought to evaluate the long-term safety and efficacy of drug-eluting stent in large vessels compared with bare metal stent.

Read the detailed description

Drug-eluting stent (DES) has been proved to reduced restenosis rate dramatically compared to bare metal stent (BMS). However, the long-term safety of DES is still uncertain. Recent meta-analysis showed that very late stent thrombosis rate was higher in DES group although overall mortality was similar between 2 groups.

The safety issue of DES was first suggested in the BASKET-LATE study, which compared cobalt chromium alloy BMS (VISION®, Guidant, USA) with sirolimus- or paclitaxel-coated DES. The study showed a significantly higher rate of death or myocardial infarction in the DES group between 7 and 18 month after the procedure (BMS 1.3%, DES 4.9%, p=0.01). Moreover, benefit to reduce target vessel revascularization was not found and there was even the possibility of late harm in patients treated with DES in large native vessels.

We perform a multicenter prospective randomized study comparing paclitaxel-eluting stent with cobalt chromium stent several years, originally to see whether major adverse cardiac event is significantly lower in DES compared to thin-strut BMS in the non-complex lesion subset. In this article, we would like to investigate the 2-year clinical events in DES and BMS groups.

Being tested
Taxus stent, Vision stent
Keywords
Angioplasty, Transluminal, Percutaneous Coronary, Paclitaxel-eluting stent, Vision stent
Medical subject headings
Coronary Artery Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Taxus stentDevice

    Stenting with Paclitaxel-eluting coronary stent system for coronary lesions with > 50% diameter stenosis with ischemic symptoms or positive functional study, or > 70% diameter stenosis without ischemic symptoms or positive functional study

  • Vision stentDevice

    Stenting with VISION coronary stent system for coronary lesions with > 50% diameter stenosis with ischemic symptoms or positive functional study, or > 70% diameter stenosis without ischemic symptoms or positive functional study

Study groups in NCT00852215
Study groupRoleWhat they receive
1Active comparatorTaxus stent group
Receives: Device: Taxus stent
2Active comparatorVision stent group
Receives: Device: Vision stent

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Major adverse cardiac event (MACE: cardiac death, myocardial infarction, or target vessel revascularization)

    Measured: 1 year

Secondary outcomes (1)
  1. MACE and stent thrombosis by the criteria of Academic Research Consortium

    Measured: 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Feb 2009 (estimated)
  2. Study startAug 2008
  3. Primary completionJul 2009 (estimated)
  4. Study completionJul 2010 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
500 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00852215
Sponsor's protocol ID
2008-07-014
Acronym
COPE
Status last verified
Feb 2009
First submitted
25 Feb 2009
Last updated
26 Feb 2009
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Taxus stent and Vision stent in people with Coronary Artery Disease, run by Samsung Medical Center at 1 site in South Korea.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 26 Feb 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Hyeon-Cheol Gwon, MD,PhD (82-2-3410-3418, hcgwon@skku.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Major adverse cardiac event (MACE: cardiac death, myocardial infarction, or target vessel revascularization) (time frame: 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Feb 2009.

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