PREVAIL: PREvention of VTE After Acute Ischemic Stroke With LMWH Enoxaparin ( - VTE: Venous Thromboembolism - LMWH: Low Molecular Weight Heparin)
Completed · Phase 4
Conditions studied: Acute Ischemic Stroke
In brief
Primary objective: * To demonstrate superiority of enoxaparin 40 mg sc qd in the prevention of VTE compared to UFH (unfractionated heparin) 5000 U sc q12 hours given for 10 ± 4 days following acute ischemic stroke. Secondary objectives: * To compare the incidence of VTE between the 2 treatment groups at 30, 60, and 90 days from the time of randomization * To compare neurologic outcomes between the 2 treatment groups, including incidence of stroke recurrence, rate of stroke progression, and patient functional status, during the 10 ± 4 days of treatment, and after 30, 60, and 90 days from the time of randomization * To evaluate the safety of using enoxaparin compared to UFH for VTE prevention in patients following acute ischemic stroke
Key facts
- Study ID
- NCT00077805
- Run by
- Sanofi
- Starts
- 2003-08-01
- Last updated by the study team
- 2011-01-11
Who can join
Age: 18 and older. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- Acute ischemic stroke, any territory, with an appropriate neuroradiologic study (head CT scan or brain MRI scan) providing results consistent with non hemorrhagic stroke
- Onset of symptoms of qualifying stroke within 48 hours prior to randomization. In patients receiving thrombolytic therapy for the acute stroke, such as tissue-type plasminogen activator (tPA), administration of study drug may not start until at least 24 hours after completion of thrombolytic therapy
- Significant motor impairment of the leg, as indicated by a NIHSS score ≥2 on item 6
- Inability to walk without assistance
You may not qualify if…
- Females who are pregnant, breast-feeding, or of childbearing potential and not using medically acceptable and effective contraception
- Clinical evidence of VTE at screening
- Any evidence of active bleeding on the basis of clinical judgment
- Prior history of intracranial hemorrhage (including that at screening)
- Spinal or epidural analgesia or lumbar puncture within the preceding 24 hours
- Thrombolytic therapy (e.g., tPA) or intra-arterial thrombolytic therapy within the preceding 24 hours.Thrombolytic therapy is permitted for treatment of the acute stroke but must have been completed 24 hours prior to randomization.
- Comatose at screening (NIHSS score ≥2 on item 1a)
- Known or suspected cerebral aneurysm or arteriovenous malformation
- Confirmed malignancy that may pose an increased risk for bleeding or otherwise compromise follow-up or outcome assessment (e.g., lung cancer)
- Impaired hemostasis, i.e., known or suspected coagulopathy (acquired or inherited); baseline platelet count <100,000/mm3; aPTT 1.5 X the laboratory upper limit of normal; or international normalized ratio(INR) >1.5
- Major surgery or recent major trauma within the previous 3 months
- Anticipated need for full-dose treatment with therapeutic levels of an anticoagulant (LMWH, UFH, oral anticoagulant), e.g., for cardiogenic source of embolism or dissection
- Treatment with a LMWH or UFH at prophylactic dose for more than 48 hours prior to randomization(patients receiving LMWH or UFH less than 48 hours prior to randomization may be randomized)
- Allergy to heparin or enoxaparin sodium, or known hypersensitivity to heparin, enoxaparin, or pork products
- History of heparin or enoxaparin induced thrombocytopenia and/or thrombosis (heparin-induced thrombocytopenia [HIT], heparin-associated thrombocytopenia [HAT], or heparin-induced thrombotic thrombocytopenia syndrome [HITTS])
- History of hypersensitivity to iodinated contrast media and/or iodine
- Bacterial endocarditis
- Prosthetic heart valve
- Known or suspected severe anemia (Hg <10.0 g/dL)
- Uncontrolled arterial hypertension (systolic blood pressure [BP] >180 mmHg or diastolic BP >100 mmHg) at the time of randomization or clinical hypertensive urgency
- Any other clinically relevant serious diseases, including severe liver disease or renal failure [creatinine clearance <30 mL/min on at least two occasions].
- Treatment with other investigational agents or devices within the previous 30 days, planned use of other investigational drugs or devices, or previous enrollment in this study.
Where it is running
- Sanofi-Aventis — Bridgewater, New Jersey, United States
- Sanofi-Aventis — North Ryde, Australia
- Sanofi-Aventis — Vienna, Austria
- Sanofi-Aventis — São Paulo, Brazil
- Sanofi-Aventis — Laval, Canada
- Sanofi-Aventis — Bogotá, Colombia
- Sanofi-Aventis — Prague, Czechia
- Sanofi-Aventis — Mumbai, India
- Sanofi-Aventis — Netanya, Israel
- Sanofi-Aventis — Milan, Italy
- Sanofi-Aventis — México, Mexico
- Sanofi-Aventis — Warsaw, Poland
- Sanofi-Aventis — Johannesburg, South Africa
- Sanofi-Aventis — Seoul, South Korea
- Sanofi-Aventis — Istanbul, Turkey (Türkiye)
Full record on ClinicalTrials.gov
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