The Clopidogrel and Aspirin After Surgery for Coronary Artery Disease

October 20, 2008 updated by: China National Center for Cardiovascular Diseases
Clopidogrel is a antiplatelet agent and is effective at reducing intimal hyperplasia in animal models of thrombosis.Several large clinical trials have demonstrated that clopidogrel with aspirin can reduce ischemic events and mortality in patients with atherosclerotic disease,therefore the combination of two antiplatelets might be useful to prevent patients received coronary artery bypass graft surgery from Saphenous vein graft disease. the aim of this study is to estimate the safety and efficacy of clopidogrel and aspirin therapy versus aspirin alone in patients after CABG.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

300

Phase

  • Phase 3

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

  • China
    • Beijing
      • Beijing, Beijing, China, 100037
        • Recruiting
        • Institute of cardiovascular diseases,Fuwai hospital
        • Principal Investigator:
          • shengshou hu, MD
        • Contact:

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 to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients undergoing primary multi-vessel CABG with at least two saphenous vein grafts, with or without the use of cardiopulmonary bypass.

Exclusion Criteria:

  • Emergency surgery
  • Valve surgery
  • Redo CABG
  • Left ventricle ejection fraction < 30%
  • Preoperative use of clopidogrel (with the exception of the current admission)
  • Preoperative use of warfarin
  • Allergy to aspirin or clopidogrel
  • History of cerebrovascular accident
  • History of severe liver disease
  • Morbid obesity
  • Current malignancy

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
Intervention / Treatment
Experimental: 1
Drug: clopidogrel and aspirin
clopidogrel 75mg daily and aspirin 100mg daily
Active Comparator: 2
Drug: aspirin
aspirin 100mg daily

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Vein graft patency examined by CT scan
Time Frame: three months after surgery
three months after surgery

Secondary Outcome Measures

Outcome Measure
Time Frame
Incidence of major adverse coronary events Incidence of major bleeding events
Time Frame: two years following surgery
two years following surgery

Collaborators and Investigators

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

Sponsor

China National Center for Cardiovascular Diseases

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

December 1, 2007

Primary Completion (Anticipated)

December 1, 2008

Study Registration Dates

First Submitted

October 19, 2008

First Submitted That Met QC Criteria

October 20, 2008

First Posted (Estimate)

October 21, 2008

Study Record Updates

Last Update Posted (Estimate)

October 21, 2008

Last Update Submitted That Met QC Criteria

October 20, 2008

Last Verified

October 1, 2008

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • NCCD20080101

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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