- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00106938
Carotid Angioplasty and Stenting Versus Endarterectomy in Asymptomatic Subjects Who Are at Standard Risk for Carotid Endarterectomy With Significant Extracranial Carotid Stenotic Disease (ACT I) (ACT I)
Study Overview
Status
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Arizona
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Phoenix, Arizona, United States, 85054
- Mayo Clinic
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Phoenix, Arizona, United States, 85006
- St. Luke's Hospital-Phoenix
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California
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Mountain View, California, United States, 94040
- Fogarty Clinical Research Inc./El Camino Hospital
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Newport Beach, California, United States, 92663
- Hoag Memorial Hospital
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Orange, California, United States, 92868
- St. Joseph Hospital
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San Diego, California, United States, 92120
- Kaiser Foundation Hospital-San Diego
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District of Columbia
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Washington, D.C., District of Columbia, United States, 20010
- Washington Hospital Center
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Florida
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Miami, Florida, United States, 33176
- Baptist Cardiac and Vascular Institute
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Georgia
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Atlanta, Georgia, United States, 30309
- Piedmont Hospital
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Gainesville, Georgia, United States, 30501
- Northeast Georgia Medical Center
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Hawaii
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Honolulu, Hawaii, United States, 96817
- Hawaii Permanente Medical Group - Kaiser
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Illinois
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Chicago, Illinois, United States, 60612
- Rush University Medical Center
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Chicago, Illinois, United States, 60611
- Northwestern University Memorial Hospital
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Springfield, Illinois, United States, 62701
- St. John's Hospital and Memorial Medical Center/ Prairie Heart Cooperative
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Indiana
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Fort Wayne, Indiana, United States, 46805
- Parkview Hospital
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Kentucky
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Lexington, Kentucky, United States, 40503
- Central Baptist Hospital
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Louisville, Kentucky, United States, 40292
- University of Louisville
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Louisiana
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Lafayette, Louisiana, United States, 70506
- Cardiovascular Institute of the South
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New Orleans, Louisiana, United States, 70121
- Ochsner Clinic Foundation
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Maryland
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Baltimore, Maryland, United States, 21224
- Johns Hopkins Bayview Medical Center
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Massachusetts
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Boston, Massachusetts, United States, 02114
- Massachusetts General Hospital
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Michigan
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Detroit, Michigan, United States, 48201
- Harper University Hospital/Detroit Medical Center
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Flint, Michigan, United States, 48507
- McLaren Regional Medical Center
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Royal Oak, Michigan, United States, 48073
- William Beaumont Hospital
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Missouri
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Saint Louis, Missouri, United States, 63141
- St. John's Mercy Medical Center
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New Hampshire
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Lebanon, New Hampshire, United States, 03756
- Dartmouth Hitchcock Medical Center
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New Jersey
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Camden, New Jersey, United States, 08103
- Our Lady of Lourdes Medical Center
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New York
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Albany, New York, United States, 12208
- Albany Medical Center
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Buffalo, New York, United States, 14209
- Millard Fillmore Hospital
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New York, New York, United States, 10021
- Lenox Hill Hospital
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New York, New York, United States, 10016
- NYU Medical Center
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New York, New York, United States, 10021
- Columbia Presbyterian Hospital
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Rochester, New York, United States, 14623
- University of Rochester-Strong Memorial Hospital
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Roslyn, New York, United States, 11576
- St. Francis Hospital
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North Carolina
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Durham, North Carolina, United States, 27609
- Duke University Medical Center
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Raleigh, North Carolina, United States, 27610
- WakeMed Health and Hospital
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Winston-Salem, North Carolina, United States, 27103
- Forsyth Medical Center
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Ohio
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Cleveland, Ohio, United States, 44195
- Cleveland Clinic Foundation
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Columbus, Ohio, United States, 43214
- Riverside Methodist Hospital
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Oregon
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Portland, Oregon, United States, 97239
- Oregon Health and Science University Stroke Center
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Pennsylvania
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Beaver, Pennsylvania, United States, 15009
- Heritage Valley Health System
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Harrisburg, Pennsylvania, United States, 17110
- Harrisburg Hospital / Pinnacle Health
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Philadelphia, Pennsylvania, United States, 19104
- Hospital of the University of Pennsylvania
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Pittsburgh, Pennsylvania, United States, 15213
- University of Pittsburgh Medical Center (Upmc)
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Pittsburgh, Pennsylvania, United States, 15232
- University of Pittsburgh Physicians Division of Vascular Surgery/Shadyside Medical
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Washington, Pennsylvania, United States, 15301
- Allegheny General Hospital
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Wyomissing, Pennsylvania, United States, 19610
- St. Joseph's Medical Center/Berks Cardiologists
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South Carolina
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Columbia, South Carolina, United States, 29204
- Providence Hospital-SC
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South Dakota
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Sioux Falls, South Dakota, United States, 57108
- North Central Heart Institute
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Tennessee
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Germantown, Tennessee, United States, 38138
- The Stern Cardiovascular Center/Methodist Germantown Hospital
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Kingsport, Tennessee, United States, 37660
- Wellmont Holston Valley Medical Center
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Knoxville, Tennessee, United States, 37934
- Mercy Medical West/Turkey Creek Medical Center
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Texas
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Austin, Texas, United States, 78756
- Heart Hospital of Austin
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Austin, Texas, United States, 78705
- Westlake Medical Center/Seton Heart Institute
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Dallas, Texas, United States, 75231
- Presbyterian Hospital of Dallas
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Dallas, Texas, United States, 75216
- Dallas Veteran's Administration Medical Center
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Houston, Texas, United States, 77030
- St. Luke's Episcopal Hospital
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Virginia
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Norfolk, Virginia, United States, 23507
- Chesapeake General Hospital/Sentara Norfolk General Hospital
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Richmond, Virginia, United States, 23226
- St. Mary's Hospital / Virginia Cardiovascular Specilists
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Washington
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Spokane, Washington, United States, 99204
- Deaconess Medical Center
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Wisconsin
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Madison, Wisconsin, United States, 53792
- University of Wisconsin
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Milwaukee, Wisconsin, United States, 53215
- St. Luke's Medical Center - Milwaukee
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- The subject must be > 18 and < 80 years of age.
- Female subjects of child bearing potential must have a documented negative pregnancy test within 30 days prior to the study procedure.
- Subject must be asymptomatic, defined as no stroke or Transient Ischemic Attack [(TIA);(hemispheric or ocular)] within the 180 days prior to the procedure. Subjects who have experienced these neurological symptoms prior to the 180 day pre-procedure window will be eligible for enrollment. An independent study neurologist or independent study neurosurgeon must confirm the subject's neurological status.
- Subjects taking warfarin may be included if their dosage is reduced before the procedure to result in an International Normalized Ratio (INR) of 1.5 or less. Warfarin may be restarted after the procedure.
- The subject must sign a written informed consent prior to the procedure, using a form that is approved by the local institutional review board (IRB).
- The subject must agree to return for all required follow-up visits.
- Subject has a discrete lesion located in the internal carotid artery (ICA); the contiguous common carotid artery (CCA) may be involved.
- Carotid stenosis ≥ 70% and ≤ 99% by carotid ultrasound or ≥ 70% and ≤ 99% stenosis (visual estimate) by angiography, without significant (> 60% by ultrasound or angiography) ICA/CCA contralateral stenosis.
Target ICA vessel diameter must be visually estimated to be:
> 2.5 mm and < 7.0 for the Emboshield Pro or for the Emboshield NAV6, > 2.8 mm and < 6.2 for the Emboshield Gen 3 And > 4.0 mm and < 9.0 mm for the Xact stent treatment segment. An untreated contralateral ICA may be used for visual estimation when a highly stenosed lesion makes measurement of the target vessel inaccurate.
- Based on the subject's anatomy, the Investigator should expect to successfully deliver the stent to the target lesion (absence of extreme tortuosity, etc.).
- De novo target lesion that can be treated with a single stent.
Exclusion Criteria:
Each potential subject must be screened to ensure that they do not meet any of the following exclusion criteria. This screening is to be based on known medical history and data available at the time of eligibility determination and enrollment.
- Subject is symptomatic and has had a stroke or exhibited TIA (hemispheric or ocular) within 180 days prior to randomization, which has been confirmed by an independent study neurologist or independent study neurosurgeon.
- Subject is participating in another drug or device trial (IND or IDE) that has not completed the primary endpoint or that may potentially confound the results of this trial. Subject may be enrolled only once in this trial and may not participate in any other clinical trial during a 1-year period post-index procedure.
- Subject has inability to understand and cooperate with study procedures or provide informed consent.
- Subject has had an intracranial hemorrhage or hemorrhagic stroke within 1-year prior the index procedure.
- Subject has dementia or has a neurological illness that may confound the neurological evaluation.
- Subject has had a known untoward reaction to anesthesia or contrast media not able to be overcome by pre-treatment with medications.
- Subject has history of intolerance or allergic reaction to any of the study medications including aspirin, Clopidogrel bisulfate (Plavix®) or Ticlopidine (Ticlid®), heparin or Bivalirudin (Angiomax™). Subjects must be able to tolerate a combination of aspirin and Clopidogrel/Ticlopidine.
- Subject has Hemoglobin (Hgb) less than 10 gm/dL, platelet count <100,000/mm3 or >500,000/mm3, or known heparin associated thrombocytopenia.
- Subject has an active bleeding diathesis or coagulopathy, or will refuse blood transfusions.
- Subject has had a GI bleed that would interfere with antiplatelet therapy.
- Subject has known cardiac sources of emboli, including paroxysmal or sustained atrial fibrillation (treated or untreated).
- Subject has had an myocardial infarction (MI) within the previous 30 days.
- Subject has any condition that limits their anticipated survival to less than 3 years.
Subject is a high risk surgical candidate defined as the presence of any one or more of a following medical conditions:
- Two or more proximal diseased coronary arteries of > 70% stenosis that have not or cannot be revascularized or < 30 days since revascularization.
- Ejection fraction < 30% or New York Heart Association (NYHA) heart failure functional class 3 or higher.
- Unstable angina, defined as angina at rest with ECG changes.
- On a list for major organ transplant or is being evaluated for such.
- Known history of respiratory insufficiency, forced expiratory volume (FEV1) < 30% (predicted).
- Chronic renal insufficiency (serum creatinine >2.5 mg/dL).
- Uncontrolled diabetes defined as fasting glucose > 400 mg/dL.
- Concurrent requirement for any invasive procedure 30 days pre- or post-procedure.
- Age ≥ 80 years.
Subject may be considered a non-surgical candidate for CEA as a result of one or more anatomic conditions or features which preclude normal surgical access or a high surgical risk because of the presence of any one or more anatomic conditions that present an increased potential for adverse events. These subjects are not eligible for enrollment.
- Subject has had radiation treatment to the neck.
- Subject has had a radical neck dissection.
- Surgically inaccessible lesions (i.e., lesions extending above the level of C2).
- Spinal immobility - inability to flex neck beyond neutral or kyphotic deformity.
- Presence of carotid artery dissection, aneurysm, pseudoaneurysm, arteritis or fibromuscular dysplasia (FMD) in the target vessel.
- Hemodynamically significant (>60%) stenosis of the right or left common carotid artery (LCCA/RCCA) below the clavicle.
- Presence of tracheostomy stoma.
- Contralateral laryngeal nerve paralysis.
- Previous carotid endarterectomy, extracranial-intracranial or carotid subclavian bypass procedure ipsilateral to the carotid stenosis.
- Severe hypertension (defined as blood pressure > Systolic of 180 mm Hg and/or a diastolic of 110 mm Hg) not adequately controlled by anti-hypertensive therapy at the time of study entry.
- Severe vascular disease including tortuosity and/or occlusive disease that would preclude the safe introduction of a guiding catheter/sheath, cerebral protection device, balloon catheter, stent delivery system or stent placement. Severe tortuosity is defined as 2 or more >90 degree bend points within 3cm of the target stenosis. One of these bends will be considered to be present if the ICA branches from the CCA at a 90 degree angle. This includes aortic arch anatomy that is unacceptable for carotid stent placement.
- Intraluminal filling defect thought to represent thrombus.
- Excessive calcification: defined as fluoroscopic evidence of calcium that extends circumferentially around the target lesion and includes the majority of the atherosclerotic plaque.
- Occlusion (TIMI 0 flow), or string sign of the ipsilateral common or internal carotid artery.
- The target lesion requires treatment with a device other than percutaneous transluminal angioplasty (PTA) prior to stent placement.
- Significant (> 60%) stenosis proximal or distal to the target lesion that might require revascularization or impede run off.
- Presence of a previously placed intravascular stent in the ipsilateral carotid distribution.
- Cerebral aneurysm (symptomatic or > 10 mm) or arteriovenous malformation (AVM) of the cerebral vasculature.
- Bilateral carotid stenosis (ICA/CCA contralateral stenosis > 60% by ultrasound or angiography).
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Active Comparator: 1
CAS group: 3:1 ratio of Carotid Artery Stenting (CAS) versus Carotid Endarterectomy (CEA). Subjects will be followed at 30 days, six (6), and 12 months post-procedure, and annually for four (4) additional years. |
Carotid artery stenting with filter (interventional)
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Active Comparator: 2
CEA group: 3:1 ratio of Carotid Artery Stenting (CAS) versus Carotid Endarterectomy (CEA). Subjects will be followed at 30 days, six (6), and 12 months post-procedure, and annually for four (4) additional years. |
Carotid artery endarterectomy (surgical)
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Composite of Death, Stroke (Ipsilateral or Contralateral; Major or Minor) and Myocardial Infarction (DSMI) Through 30 Days Post-procedure, Plus Ipsilateral Stroke 31 to 365 Days.
Time Frame: 0 to 365 days
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0 to 365 days
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Acute Device Success: Xact Carotid Stent
Time Frame: On day 0 after index procedure
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Defined as attainment of final residual diameter stenosis of < 50% by Qualitative Comparative Analysis (QCA) (if QCA is not available, the visual estimate of diameter stenosis will be used) covering an area no longer than the original lesion with the study stent.
(Routine post-dilatation of the stent may be included in this definition).
Placement of an additional stent to treat a dissection or procedural complication as a bailout will not be considered a device success.
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On day 0 after index procedure
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Acute Device Success: Embolic Protection Device System
Time Frame: On day 0 after index procedure
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Defined as successful deployment and retrieval of the filter in the absence of angiographic distal embolization.
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On day 0 after index procedure
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Procedural Success
Time Frame: 0 to 30 days post procedure
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Procedural success is defined as the attainment of target lesion final residual diameter stenosis of < 50% by QCA (if QCA is not available, the visual estimate of diameter stenosis will be used) using any procedural method and freedom of Major Adverse Event at 30 days.
|
0 to 30 days post procedure
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Composite Morbidity Measure
Time Frame: 0 to 30 Days Post-procedure
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A pre-specified composite Morbidity Measure (CMM) of cranial and peripheral nerve injury, vascular injury, non-cerebral bleeding, wound complications related to the neck incision or femoral puncture site, and other complications (anesthetic) at 30 days post-procedure.
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0 to 30 Days Post-procedure
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Freedom From Clinically Indicated Target Lesion Revascularization(CI-TLR)
Time Frame: 0 to 180 days
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Freedom from CI-TLR was defined as freedom from reintervention for ≥ 50% restenosis in recently symptomatic patients and ≥ 80% restenosis in asymptomatic patients.
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0 to 180 days
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Freedom From Clinically Indicated Target Lesion Revascularization
Time Frame: 0 to 365 days
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Freedom from CITLR was defined as freedom from reintervention for ≥ 50% restenosis in recently symptomatic patients and ≥ 80% restenosis in asymptomatic patients.
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0 to 365 days
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Freedom From Clinically Indicated Target Lesion Revascularization
Time Frame: 0 to 730 days
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Freedom from CITLR was defined as freedom from reintervention for ≥ 50% restenosis in recently symptomatic patients and ≥ 80% restenosis in asymptomatic patients.
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0 to 730 days
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Freedom From Clinically Indicated Target Lesion Revascularization
Time Frame: 0 to 1095 days
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Freedom from CITLR was defined as freedom from reintervention for ≥ 50% restenosis in recently symptomatic patients and ≥ 80% restenosis in asymptomatic patients.
|
0 to 1095 days
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Freedom From Clinically Indicated Target Lesion Revascularization
Time Frame: 0 to 1460 days
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Freedom from CITLR was defined as freedom from reintervention for ≥ 50% restenosis in recently symptomatic patients and ≥ 80% restenosis in asymptomatic patients.
|
0 to 1460 days
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Freedom From Clinically Indicated Target Lesion Revascularization
Time Frame: 0 to 1825 days
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Freedom from CITLR was defined as freedom from reintervention for ≥ 50% restenosis in recently symptomatic patients and ≥ 80% restenosis in asymptomatic patients.
|
0 to 1825 days
|
Freedom From Ipsilateral Stroke
Time Frame: 31 to 365 days
|
Ipsilateral stroke was defined as stroke in the vascular distribution of the study carotid artery.
If a subject experienced a bilateral stroke it was counted as an ipsilateral stroke for analysis purposes.
|
31 to 365 days
|
Freedom From Ipsilateral Stroke
Time Frame: 31 to 730 days
|
Ipsilateral stroke was defined as stroke in the vascular distribution of the study carotid artery.
If a subject experienced a bilateral stroke it was counted as an ipsilateral stroke for analysis purposes.
|
31 to 730 days
|
Freedom From Ipsilateral Stroke
Time Frame: 31 to 1095 days
|
Ipsilateral stroke was defined as stroke in the vascular distribution of the study carotid artery.
If a subject experienced a bilateral stroke it was counted as an ipsilateral stroke for analysis purposes.
|
31 to 1095 days
|
Freedom From Ipsilateral Stroke
Time Frame: 31 to 1460 days
|
Ipsilateral stroke was defined as stroke in the vascular distribution of the study carotid artery.
If a subject experienced a bilateral stroke it was counted as an ipsilateral stroke for analysis purposes.
|
31 to 1460 days
|
Freedom From Ipsilateral Stroke
Time Frame: 31 to 1825 days
|
Ipsilateral stroke was defined as stroke in the vascular distribution of the study carotid artery.
If a subject experienced a bilateral stroke it was counted as an ipsilateral stroke for analysis purposes.
|
31 to 1825 days
|
Freedom From Mortality
Time Frame: 0 to 365 days
|
0 to 365 days
|
|
Freedom From Mortality
Time Frame: 0 to 730 days
|
0 to 730 days
|
|
Freedom From Mortality
Time Frame: 0 to 1095 days
|
0 to 1095 days
|
|
Freedom From Mortality
Time Frame: 0 to 1460 days
|
0 to 1460 days
|
|
Freedom From Mortality
Time Frame: 0 to 1825 days
|
0 to 1825 days
|
|
Freedom From All Stroke
Time Frame: 0 to 365 days
|
0 to 365 days
|
|
Freedom From All Stroke
Time Frame: 0 to 730 days
|
0 to 730 days
|
|
Freedom From All Stroke
Time Frame: 0 to 1095 days
|
0 to 1095 days
|
|
Freedom From All Stroke
Time Frame: 0 to 1460 days
|
0 to 1460 days
|
|
Freedom From All Stroke
Time Frame: 0 to 1825 days
|
0 to 1825 days
|
|
Death (Non-Hierarchical)
Time Frame: ≤ 30 Days Post Index Procedure
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≤ 30 Days Post Index Procedure
|
|
All Stroke (Non-Hierarchical)
Time Frame: ≤ 30 Days Post Index Procedure
|
≤ 30 Days Post Index Procedure
|
|
Myocardial Infarction (MI) (Non-Hierarchical)
Time Frame: ≤ 30 Days Post Index Procedure
|
≤ 30 Days Post Index Procedure
|
|
Death, Stroke or Myocardial Infarction (MI) (Hierarchical)
Time Frame: ≤ 30 Days Post Index Procedure
|
≤ 30 Days Post Index Procedure
|
|
Death or Stroke (Hierarchical)
Time Frame: ≤ 30 Days Post Index Procedure
|
≤ 30 Days Post Index Procedure
|
|
Death or Major Stroke (Hierarchical)
Time Frame: ≤ 30 Days Post Index Procedure
|
≤ 30 Days Post Index Procedure
|
|
Freedom From Death, Stroke and MI Within 30 Days and Ipsilateral Stroke From 31 Days to 5 Years
Time Frame: 0 to 5 years
|
0 to 5 years
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Jon Matsumura, MD, University of Wisconsin, Madison
Publications and helpful links
General Publications
- Weinberg I, Beckman JA, Matsumura JS, Rosenfield K, Ansel GM, Chaturvedi S, Gray W, Metzger DC, Riles T, Shu Y, Wechsler L, Jaff MR. Carotid Stent Fractures Are Not Associated With Adverse Events: Results From the ACT-1 Multicenter Randomized Trial (Carotid Angioplasty and Stenting Versus Endarterectomy in Asymptomatic Subjects Who Are at Standard Risk for Carotid Endarterectomy With Significant Extracranial Carotid Stenotic Disease). Circulation. 2018 Jan 2;137(1):49-56. doi: 10.1161/CIRCULATIONAHA.117.030030. Epub 2017 Oct 5.
- Rosenfield K, Matsumura JS, Chaturvedi S, Riles T, Ansel GM, Metzger DC, Wechsler L, Jaff MR, Gray W; ACT I Investigators. Randomized Trial of Stent versus Surgery for Asymptomatic Carotid Stenosis. N Engl J Med. 2016 Mar 17;374(11):1011-20. doi: 10.1056/NEJMoa1515706. Epub 2016 Feb 17.
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- AVD-640-0052
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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