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Arterial Occlusive DiseasesPhase 3NCT00174759

CASPAR : Clopidogrel and Acetyl Salicylic Acid in Bypass Surgery for Peripheral ARterial Disease

A Phase 3 study testing Clopidogrel in people with Arterial Occlusive Diseases, run by Sanofi at 14 sites in 14 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Primary objective: To evaluate whether clopidogrel 75 mg o.d. versus placebo (on a background of ASA 75-100 mg/d) will lead to an increased rate of primary patency, limb salvage and survival, in patients receiving a below knee bypass graft for the treatment of PAD. Read more about this study

Who is it for?
Ages 40 to 80 years
Conditions the study is for
Arterial Occlusive Diseases
What is being tested?
Clopidogrel
How many people
1,460 participants
Where
14 sitesin 14 countries
Study dates
Sep 2004to not given
Phase
Phase 3
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 40 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

None listed.

Who cannot join

  • PAD medical/surgical history
  • Onset of PAD symptoms before the age of 40 years
  • Non-atherosclerotic vascular disease (e.g. Buerger's disease, popliteal entrapment syndrome)
  • Patient receiving aorto-bifemoral, iliac-femoral or crossover (femoral-femoral) grafts, or undergoing peripheral transcutaneous angioplasty (PTA), with or without stenting, during the same surgery.
  • Medical history related to bleeding risk
  • Current active bleeding at surgical site
Show all 15Show fewer
  • Withdrawal of an epidural catheter less than 12 hours before randomization
  • Current active bleeding or increased risk of bleeding, such as severe hepatic insufficiency, proliferative diabetic retinopathy, peptic ulceration, bleeding diathesis or coagulopathy
  • Peptic ulceration within 12 months of randomization
  • Previous or current intracranial hemorrhage or hemorrhagic stroke, or any previous stroke for which the diagnosis of hemorrhagic stroke cannot be excluded
  • Any history of severe spontaneous bleeding such as gastrointestinal bleeding, gross hematuria, intraocular bleeding
  • Other medical conditions
  • Previous disabling stroke (severe cerebral deficit such that the patient is bedridden or demented)
  • NYHA Class IV heart failure
  • Uncontrolled hypertension: Systolic Blood Pressure (SBP) > 180 mm Hg, or Diastolic Blood Pressure (DBP) > 100 mm Hg

Trial locations and contacts

14 sites in 14 countries.

14 sites in 14 countries

Australia1 site
  • Sanofi-Aventis

    North Ryde

Other trials in Australia

Austria1 site
  • Sanofi-Aventis

    Vienna

Other trials in Austria

Belgium1 site
  • Sanofi-Aventis

    Brussels

Other trials in Belgium

Finland1 site
  • Sanofi-Aventis

    Helsinki

Other trials in Finland

France1 site
  • Sanofi-Aventis

    Paris

Other trials in France

Germany1 site
  • Sanofi-Aventis

    Berlin

Other trials in Germany

Hungary1 site
  • Sanofi-Aventis

    Budapest

Other trials in Hungary

Italy1 site
  • Sanofi-Aventis

    Milan

Other trials in Italy

Netherlands1 site
  • Sanofi-Aventis

    Gouda

Other trials in Netherlands

Poland1 site
  • Sanofi-Aventis

    Warsaw

Other trials in Poland

Spain1 site
  • Sanofi-Aventis

    Barcelona

Other trials in Spain

Sweden1 site
  • Sanofi-Aventis

    Stockholm

Other trials in Sweden

Switzerland1 site
  • Sanofi-Aventis

    Meyrin

Other trials in Switzerland

United Kingdom1 site
  • Sanofi-Aventis

    Guildford

Other trials in United Kingdom

About this study

Official title: A Double-blind, Randomized Study of Clopidogrel 75 mg/d vs Placebo, on a Background of ASA 75-100 mg/d,in Peripheral Arterial Disease (PAD) Patients Receiving a Unilateral Below Knee Bypass Graft.

Primary objective:

To evaluate whether clopidogrel 75 mg o.d. versus placebo (on a background of ASA 75-100 mg/d) will lead to an increased rate of primary patency, limb salvage and survival, in patients receiving a below knee bypass graft for the treatment of PAD.

Secondary objectives:

Comparison, between the two treatment groups, of :

  • Primary patency,
  • Assisted primary patency,
  • Cardiovascular death / myocardial infarction / stroke / any amputation above the ankle.
  • Ankle Brachial Pressure Index (ABPI) changes from baseline
Being tested
Clopidogrel
Medical subject headings
Arterial Occlusive Diseases

What participants receive

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

What is being measured

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

  1. 1st occurrence over the duration of follow-up of : index bypass graft occlusion based on imaging procedure, or graft replacement or endovascular intervention, or amputation above the ankle of the affected limb or death

Secondary outcomes (1)
  1. 1st occurrence of any component of following cluster of events : index bypass graft occlusion,any revascularization procedure or amputation. Change in ABPI.

Timeline

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

  1. First posted15 Sep 2005 (estimated)
  2. Study startSep 2004

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Enrolment
1,460 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00174759
Sponsor's protocol ID
C_9253
Other IDs
EudraCT #: 2004-000822-58
Status last verified
Jan 2011
First submitted
9 Sep 2005
Last updated
11 Jan 2011
Results posted
No

Publications

  • Belch JJ, Dormandy J; CASPAR Writing Committee; Biasi GM, Cairols M, Diehm C, Eikelboom B, Golledge J, Jawien A, Lepantalo M, Norgren L, Hiatt WR, Becquemin JP, Bergqvist D, Clement D, Baumgartner I, Minar E, Stonebridge P, Vermassen F, Matyas L, Leizorovicz A. Results of the randomized, placebo-controlled clopidogrel and acetylsalicylic acid in bypass surgery for peripheral arterial disease (CASPAR) trial. J Vasc Surg. 2010 Oct;52(4):825-33, 833.e1-2. doi: 10.1016/j.jvs.2010.04.027. Epub 2010 Aug 1.

    PubMed 20678878

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Clopidogrel in people with Arterial Occlusive Diseases, run by Sanofi at 14 sites in 14 countries.

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 0 inclusion and 15 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: finished, as of the sponsor's last update on 11 Jan 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 14 sites in Australia, Austria, Belgium, Finland, France and 9 more countries. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

1st occurrence over the duration of follow-up of : index bypass graft occlusion based on imaging procedure, or graft replacement or endovascular intervention, or amputation above the ankle of the affected limb or death. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00174759, which also lists 1 linked publication.

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 11 Jan 2011.

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