Clopidogrel Use and Long-term Safety After Drug-Eluting Stents Implantation (ZEST-LATE)

March 19, 2014 updated by: Seung-Jung Park

Evaluation of the Long-term Safety After Zotarolimus-Eluting Stent, Sirolimus-Eluting Stent, or PacliTaxel-Eluting Stent Implantation for Coronary Lesions - Late Coronary Arterial Thrombotic Events

The purpose of ZEST-LATE (Evaluation of the Long-term Safety After Zotarolimus-Eluting Stent, Sirolimus-Eluting Stent, or PacliTaxel-Eluting Stent Implantation for Coronary Lesions - Late Coronary Arterial Thrombotic Events) trial is to assess the relationship between long-term clopidogrel use beyond 1 year and long-term rates of death or MI after DES implantation and to estimate the duration of dual antiplatelet therapy for preventing the late thrombotic events.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Prospective, two arms, open-labeled, randomized multi-center trial of approximately 2,000 patients enrolled at 19 centers in Korea. Among all patients enrolled in the ZEST (Comparison of the Efficacy of Zotarolimus-Eluting Stent versus Sirolimus-Eluting Stent versus PacliTaxel-Eluting Stent for Coronary Lesions) trial, event-free patients who survived the first 12 months without nonfatal MI or repeat revascularization will be randomized to discontinue clopidogrel therapy at 12 months after DES implantation. All patients will be followed for another 12 months.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
1175

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

  • Korea, Republic of
      • Daegu, Korea, Republic of
        • Daegu Catholic University Medical Center
      • Daegu, Korea, Republic of
        • Keimyung University Dongsan Medical Center
      • Daegu, Korea, Republic of
        • Kyungpook National University Hospital
      • Daejeon, Korea, Republic of
        • Chungnam National University Hospital
      • GangNeung, Korea, Republic of
        • Asan Medical Center
      • Gwangju, Korea, Republic of
        • Chonnam National University Hospital
      • Ilsan, Korea, Republic of
        • NHIC Ilsan Hospital
      • Jeonju, Korea, Republic of
        • Chonbuk National University Hospital
      • Pusan, Korea, Republic of
        • Pusan Natioanal University Hospital
      • PyeongChon, Korea, Republic of
        • Hallym University Sacred Heart Hospital,
      • Seongnam, Korea, Republic of
        • Seoul National University Bundang Hospital
      • Seoul, Korea, Republic of
        • Seoul National University Hospital
      • Seoul, Korea, Republic of, 138-736
        • Asan Medical Center
      • Seoul, Korea, Republic of
        • Samsung Medical Center
      • Seoul, Korea, Republic of
        • Korea University Anam Hospital
      • Seoul, Korea, Republic of
        • Yonsei University Medical Center
      • Seoul, Korea, Republic of
        • St.Mary's Catholic Medical Center
      • Suwon, Korea, Republic of
        • Ajou University Hospital
      • Ulsan, Korea, Republic of
        • Ulsan University Hospital
      • Wonju, Korea, Republic of
        • Yonsei University Wonju Christian Hospital

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Among the participants in the ZEST trial, event-free patients who survived the first 12 months without nonfatal MI or repeat revascularization
  2. The patient or guardian agrees to the study protocol and the schedule of clinical follow-up, and provides informed, written consent, as approved by the appropriate Institutional Review Board/Ethical Committee of the respective clinical site.

Exclusion Criteria:

  1. Contraindication to antiplatelet therapy
  2. Non-cardiac co-morbid conditions are present with life expectancy <1 year or that may result in protocol non-compliance (per site investigator's medical judgment).
  3. Patients who are actively participating in another drug or device investigational study, which have not completed the primary endpoint follow-up period.
  4. Bleeding diathesis
  5. Recent stroke within 6-months
  6. Concurrent organ damage (creatinine level > 2.0mg/dL or AST and ALT > 3 times upper normal reference values)
  7. Patients with left main stem stenosis (>50% by visual estimate)

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Aspirin
Aspirin monotherapy (stopping clopidogrel at 1 year after DES)
Drug: Aspirin
stopping clopidogrel at 1 year after DES implantation
Other Names:
  • Aspirin monotherapy
Active Comparator: Aspirin,Clopidogrel
Aspirin,Clopidogrel Dual antiplatelet therapy (continue aspirin and clopidogrel 1year after DES)
Drug: Aspirin,Clopidogrel
continue aspirin and clopidogrel 1year after DES
Other Names:
  • Aspirin,Clopidogrel Dual antiplatelet therapy

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Composite of death or myocardial infarction
Time Frame: at 12 months after randomization (at 24 months after ZEST enrollment)
at 12 months after randomization (at 24 months after ZEST enrollment)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
All Death
Time Frame: at 12 months after randomization
at 12 months after randomization
Cardiac death
Time Frame: at 12 months after randomization
at 12 months after randomization
Myocardial infarction
Time Frame: at 12 months after randomization
at 12 months after randomization
Stroke
Time Frame: at 12 months after randomization
at 12 months after randomization
Target vessel revascularization (all and ischemia-driven)
Time Frame: at 12 months after randomization
at 12 months after randomization
Target lesion revascularization (all and ischemia-driven)
Time Frame: at 12 months after randomization
at 12 months after randomization
Stent thrombosis for the patients
Time Frame: at 12 months after randomization
at 12 months after randomization
Bleeding event
Time Frame: at 12 months after randomization
at 12 months after randomization

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Seung-Jung Park

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
CardioVascular Research Foundation, Korea

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2007

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 1, 2010

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2010

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 31, 2007

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 9, 2008

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 10, 2008

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 20, 2014

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 19, 2014

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 20070043

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.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings