NCT00243178

Brief Summary

The purpose of this study is to determine if the combination of Clopidogrel 75mg once daily (od) plus aspirin at 100mg daily (recommended dose) is as effective as oral anticoagulation therapy with a lower risk of bleeding in patients with atrial fibrillation associated with at least one major cardiovascular risk factor.Primary objectives :The combination of clopidogrel plus aspirin compared to adjusted dose (INR between 2.0 and 3.3) oral anticoagulation (a vitamin K antagonist) will result in the same risk of the composite outcome of stroke, non-CNS systemic embolism, myocardial infarction or vascular death in patients with atrial fibrillation.The secondary objective is to establish whether or not aspirin plus clopidogrel has a lower risk of hemorrhage than standard anticoagulation therapy.

Trial Health

68
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
6,706

participants targeted

Target at P75+ for phase_3 atrial-fibrillation

Timeline
Completed

Started Jul 2003

Geographic Reach
31 countries

31 active sites

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2003

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2005

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2005

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

October 20, 2005

Completed
1 day until next milestone

First Posted

Study publicly available on registry

October 21, 2005

Completed
Last Updated

October 19, 2009

Status Verified

October 1, 2009

Enrollment Period

2.2 years

First QC Date

October 20, 2005

Last Update Submit

October 16, 2009

Conditions

Keywords

Atrial fibrillationAnticoagulant therapyThromboembolic prevention

Outcome Measures

Primary Outcomes (1)

  • Primary outcome:time to the first occurrence of stroke, non-CNS systemic embolism, myocardial infarction or vascular death

    during approximately three years of follow-up

Secondary Outcomes (1)

  • Secondary outcomes: major hemorrhage, total mortality and stroke.

    during approximately three years of follow-up

Interventions

75 mg once daily in combination with aspirin

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Evidence of atrial fibrillation either on one current Electrocardiogram (ECG) or on two ECG recorded at two weeks a part during 6 months prior to study enrollment.
  • Evidence of high risk of vascular events: at least one of the following risk criteria must be present:
  • are 75 years or greater;
  • on treatment for systemic hypertension;
  • prior stroke, TIA, or non-CNS systemic embolus;
  • left ventricular dysfunction with left ventricular ejection fraction (EF) estimated by echocardiogram or angiogram (radionuclide or contrast) to be \< 45%;
  • peripheral vascular disease (previous peripheral artery revascularization, limb and foot amputation, or the combination of current intermittent claudication and ankle arm systolic blood pressure ratio \< 0.9);
  • age 55 to 74 years; AND
  • either diabetes mellitus requiring drug therapy, or documented previous myocardial infarction, or documented coronary artery disease.

You may not qualify if:

  • Patients will be excluded from ACTIVE if any of the following are present :
  • requirement for clopidogrel (such as recent coronary stent procedure);
  • requirement for oral anticoagulant (such as prosthetic mechanical heart valve);
  • prior intolerance to ASA or clopidogrel;
  • documented peptic ulcer disease within the previous 6 months;
  • prior intracerebral hemorrhage;
  • significant thrombocytopenia; (platelet count \< 50 x 10(9)/L);
  • psychosocial reason making study participation impractical;
  • geographic reason making study participation impractical;
  • ongoing alcohol abuse;
  • mitral stenosis;
  • pregnant or nursing woman or woman of child bearing potential and not on effective birth control for at least one month prior to start of study or not willing to continue on birth control for duration of study;
  • severe comorbid condition such that the patient is not expected to survive 6 months;
  • patient currently receiving an investigational pharmacologic agent; OR
  • requirement for chronic (\> 3 months) non-COX-2 inhibitor NSAID therapy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (32)

Sanofi-Aventis Administrative Office

Bridgewater, New Jersey, 08807, United States

Location

Sanofi-Aventis Administrative Office

Macquarie Park, Australia

Location

Sanofi-Aventis Administrative Office

Vienna, Austria

Location

Sanofi-Aventis Administrative Office

Diegem, Belgium

Location

Sanofi-Aventis Administrative Office

São Paulo, Brazil

Location

Sanofi-Aventis Administrative Office

Laval, Canada

Location

Sanofi-Aventis Administrative Office

Santiago, Chile

Location

Sanofi-Aventis Administrative Office

Prague, Czechia

Location

Sanofi-Aventis Administrative Office

Hørsholm, Denmark

Location

Sanofi-Aventis Administrative Office

Helsinki, Finland

Location

Sanofi-Aventis Administrative Office

Paris, France

Location

Sanofi-Aventis Administrative Office

Berlin, Germany

Location

Sanofi-Aventis Administrative Office

Athens, Greece

Location

Sanofi-Aventis Administrative Office

Causeway Bay, Hong Kong

Location

Sanofi-Aventis Administrative Office

Budapest, Hungary

Location

Sanofi-Aventis Administrative Office

Netanya, Israel

Location

Sanofi-Aventis Administrative Office

Milan, Italy

Location

Sanofi-Aventis Administrative Office

Kuala Lumpur, Malaysia

Location

Sanofi-Aventis Administrative Office

México, Mexico

Location

Sanofi-Aventis Administrative Office

Gouda, Netherlands

Location

Sanofi-Aventis Administrative Office

Lysaker, Norway

Location

Sanofi-Aventis Administrative Office

Warsaw, Poland

Location

Sanofi-Aventis Administrative Office

Porto Salvo, Portugal

Location

Sanofi-Aventis Administrative Office

Moscow, Russia

Location

Sanofi-Aventis Administrative Office

Singapore, Singapore

Location

Sanofi-Aventis Administrative Office

Midrand, South Africa

Location

Sanofi-Aventis Administrative Office

Barcelona, Spain

Location

Sanofi-Aventis Administrative Office

Bromma, Sweden

Location

Sanofi-Aventis Administrative Office

Geneva, Switzerland

Location

Sanofi-Aventis Administrative Office

Taipei, Taiwan

Location

Sanofi-Aventis Administrative Office

Istanbul, Turkey (Türkiye)

Location

Sanofi-Aventis Administrative Office

Guildford Surrey, United Kingdom

Location

Related Publications (4)

  • ACTIVE Writing Group of the ACTIVE Investigators; Connolly S, Pogue J, Hart R, Pfeffer M, Hohnloser S, Chrolavicius S, Pfeffer M, Hohnloser S, Yusuf S. Clopidogrel plus aspirin versus oral anticoagulation for atrial fibrillation in the Atrial fibrillation Clopidogrel Trial with Irbesartan for prevention of Vascular Events (ACTIVE W): a randomised controlled trial. Lancet. 2006 Jun 10;367(9526):1903-12. doi: 10.1016/S0140-6736(06)68845-4.

  • Flaker GC, Pogue J, Yusuf S, Pfeffer MA, Goldhaber SZ, Granger CB, Anand IS, Hart R, Connolly SJ; Atrial Fibrillation Clopidogrel Trial With Irbesartan for Prevention of Vascular Events (ACTIVE) Investigators. Cognitive function and anticoagulation control in patients with atrial fibrillation. Circ Cardiovasc Qual Outcomes. 2010 May;3(3):277-83. doi: 10.1161/CIRCOUTCOMES.109.884171. Epub 2010 Mar 16.

  • Cairns JA, Wittes J, Wyse DG, Pogue J, Gent M, Hirsh J, Marler J, Pritchett EL. Monitoring the ACTIVE-W trial: some issues in monitoring a noninferiority trial. Am Heart J. 2008 Jan;155(1):33-41. doi: 10.1016/j.ahj.2007.09.011. Epub 2007 Nov 26.

  • Hohnloser SH, Pajitnev D, Pogue J, Healey JS, Pfeffer MA, Yusuf S, Connolly SJ; ACTIVE W Investigators. Incidence of stroke in paroxysmal versus sustained atrial fibrillation in patients taking oral anticoagulation or combined antiplatelet therapy: an ACTIVE W Substudy. J Am Coll Cardiol. 2007 Nov 27;50(22):2156-61. doi: 10.1016/j.jacc.2007.07.076. Epub 2007 Nov 13.

MeSH Terms

Conditions

Atrial Fibrillation

Interventions

Clopidogrel

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

TiclopidineThienopyridinesThiophenesSulfur CompoundsOrganic ChemicalsPyridinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Officials

  • Salim YUSUF, Prof.

    Hamilton Health Sciences Corporation

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY

Study Record Dates

First Submitted

October 20, 2005

First Posted

October 21, 2005

Study Start

July 1, 2003

Primary Completion

September 1, 2005

Study Completion

September 1, 2005

Last Updated

October 19, 2009

Record last verified: 2009-10

Locations