Arterial Occlusive Diseases Clinical Trial
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.
Verified date | January 2011 |
Source | Sanofi |
Contact | n/a |
Is FDA regulated | No |
Health authority | Scotland: Scottish Executive Health Department |
Study type | Interventional |
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
Status | Completed |
Enrollment | 1460 |
Est. completion date | |
Est. primary completion date | |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 40 Years to 80 Years |
Eligibility |
Inclusion Criteria: A patient is eligible for inclusion in the study 2-4 days after
surgery if all the following criteria are fulfilled: - Informed consent obtained; - Chronic background treatment with daily ASA, whatever the dose, started at least 4 weeks before surgery. A window of a few days without ASA before surgery is acceptable, according to local practice. Post-randomization use of ASA must be between 75 and 100 mg/day. - Unilateral below knee bypass graft (i.e. the distal anastomosis is below the level of the knee joint) for atherosclerotic PAD within the previous 4 days; - Demonstration of initial patency of the index graft by an objective measurement (e.g. intra-operative Doppler scanning, flow measurement, angiography, Duplex scanning) during bypass surgery, or between surgery and the time of randomization; - No clinical evidence of graft occlusion at time of randomization. Exclusion criteria : 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 - 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 |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
Australia | Sanofi-Aventis | North Ryde | |
Austria | Sanofi-Aventis | Vienna | |
Belgium | Sanofi-Aventis | Brussels | |
Finland | Sanofi-Aventis | Helsinki | |
France | Sanofi-Aventis | Paris | |
Germany | Sanofi-Aventis | Berlin | |
Hungary | Sanofi-Aventis | Budapest | |
Italy | Sanofi-Aventis | Milan | |
Netherlands | Sanofi-Aventis | Gouda | |
Poland | Sanofi-Aventis | Warsaw | |
Spain | Sanofi-Aventis | Barcelona | |
Sweden | Sanofi-Aventis | Stockholm | |
Switzerland | Sanofi-Aventis | Meyrin | |
United Kingdom | Sanofi-Aventis | Guildford |
Lead Sponsor | Collaborator |
---|---|
Sanofi | Bristol-Myers Squibb |
Australia, Austria, Belgium, Finland, France, Germany, Hungary, Italy, Netherlands, Poland, Spain, Sweden, Switzerland, United Kingdom,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | 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 | 1st occurrence of any component of following cluster of events : index bypass graft occlusion,any revascularization procedure or amputation. Change in ABPI. |
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