Short-Term Dual Antiplatelet and Maintenance CloPidogrel Therapy After Drug-Eluting Stent Implantation (STAMP-DES)

February 20, 2017 updated by: CHEOL WHAN LEE, M.D., Ph.D

Short-Term Dual Antiplatelet and Maintenance CloPidogrel Therapy After Drug-Eluting Stent Implantation : STAMP-DES Trial

The purpose of this study is to compare short-term (6-month Dual Anti Platelet Therapy(DAPT) followed by clopidogrel monotherapy) vs. standard long-term dual antiplatelet strategies (24-month DAPT followed by aspirin monotherapy) on clinically relevant bleeding complications (Bleeding Academic Research Consortium(BARC) type 2, 3, or 5)31 in patients after zotarolimus-eluting stent implantation.

Study Overview

Status

Status

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

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.

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.
364

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
      • Cheju, Korea, Republic of
        • Cheju Halla General Hospital
      • Daegu, Korea, Republic of
        • Keimyung University Dongsan Medical Center
      • Daejeon, Korea, Republic of
        • Eulji University Hospital
      • Gangneung, Korea, Republic of
        • GangNeung Asan Hospital
      • Ilsan, Korea, Republic of
        • Inje University Ilsan Paik Hospital
      • Seoul, Korea, Republic of
        • Asan Medical Center
      • Seoul, Korea, Republic of
        • Kyunghee University Medical Center
      • Seoul, Korea, Republic of
        • Kangbuk Samsung Medical Center
      • Seoul, Korea, Republic of
        • The Catholic University of Korea St. Paul's Hospital
      • Seoul, Korea, Republic of
        • The Catholic University of Korea, Yeouido St. Mary's Hospital
      • Seoul, Korea, Republic of
        • SMA-SNU Boramae Medical Center
      • Ulsan, Korea, Republic of
        • Ulsan University 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

19 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Men or women at least 19 years of age
  • Patients with stable coronary artery disease who were successfully treated with zotarolimus-eluting stents
  • Patients without major bleeding or MACE (myocardial infarction, stent thrombosis, stoke, repeat revascularization) within 6 months after zotarolimus-eluting stent placement
  • 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:

  • Persistent thrombocytopenia (platelet count <100,000/µl)
  • A known intolerance to a study drug (aspirin, clopidogrel)
  • Patients requiring long-term oral anticoagulants or cilostazol
  • Patients presented with acute myocardial infarction (STEMI or NSTEMI) at the time of index procedure
  • Planned cardiac surgery (e.g., CABG, valve repair or replacement, or aneurysmectomy) or planned major non-cardiac surgery within 18 months after procedure
  • Bare-metal stent implantation at the time of index procedure
  • Chronic disease requiring treatment with oral, intravenous, or intra-articular corticosteroids (use of topical, inhaled, or nasal corticosteroids is permissible).
  • A diagnosis of cancer in the past 2 years or current treatment for the active cancer.
  • Any clinically significant abnormality identified at the screening visit, physical examination, laboratory tests, or electrocardiogram which, in the judgment of the Investigator, would preclude safe completion of the study.
  • Hepatic disease or biliary tract obstruction, or significant hepatic enzyme elevation (ALT or AST > 3 times upper limit of normal).
  • History of adult asthma manifested by bronchospasm in the past 6 months, or currently taking regular anti-asthmatic medication(s).
  • Unwillingness or inability to comply with the procedures described in this protocol.
  • Patients pregnant or breast-feeding or child-bearing potential.

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: Short term dual therapy
Drug: Clopidogrel
6-month DAPT followed by clopidogrel monotherapy
Active Comparator: Long term dual therapy
Drug: Aspirin plus clopidogrel
standard long-term dual antiplatelet strategies (24-month DAPT followed by aspirin monotherapy)

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
Measure Description
Time Frame
Number of participants with clinically relevant bleeding
Time Frame: 18 months
clinically relevant bleeding (Bleeding Academic Research Consortium Definition: type 2, 3, or 5) at 18 months after randomization (6-24 months after the procedure)
18 months

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
Number of participants with death from cardiovascular cause
Time Frame: 18 months
18 months
Number of participants with myocardial infarction
Time Frame: 18 months
18 months
Number of participants with stroke
Time Frame: 18 months
18 months
Number of participants with stent thrombosis
Time Frame: 18 months
18 months
Number of participants with repeat revascularization
Time Frame: 18 months
18 months
Number of participants with BARC(Bleeding Academic Research Consortium Definition) type 3 or 5
Time Frame: 18 months
18 months
Number of participants with a composite of death from vascular causes or myocardial infarction
Time Frame: 18 months
18 months
Number of participants with a composite of death from cardiovascular causes, myocardial infarction, stroke, stent thrombosis
Time Frame: 18 months
18 months
Number of participants with a composite of death from vascular causes, myocardial infarction, stroke, stent thrombosis, BARC type 3 or 5
Time Frame: 18 months
18 months
Number of participants with gastrointestinal side effects (gastric or duodenal active ulcer, perforation, gastrointestinal bleeding)
Time Frame: 18 months
18 months
Number of participants with a composite of BARC(Bleeding Academic Research Consortium Definition) 2, 3, 5 or gastrointestinal side effects.
Time Frame: 18 months
18 months

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.
CHEOL WHAN LEE, M.D., Ph.D

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.
Medtronic
CardioVascular Research Foundation, Korea
Chong Kun Dang Pharmaceutical Corp.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Seung-jung Park, MD, Asan Medical Center
  • Principal Investigator: Cheol-Whan Lee, MD, Asan 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)

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.
December 22, 2015

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.
February 13, 2017

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.
February 13, 2017

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).
July 5, 2015

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.
July 8, 2015

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.
July 10, 2015

Study Record Updates

Last Update Posted (Actual)

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.
February 23, 2017

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.
February 20, 2017

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.
February 1, 2017

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.
  • AMCCV2014-09

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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