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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)

20 juni 2017 bijgewerkt door: Abbott Medical Devices
The study is being conducted to demonstrate the non-inferiority of carotid artery stenting (CAS) using the Emboshield® Embolic Protection System with the Xact® Carotid Stent System to carotid endarterectomy (CEA) for the treatment of asymptomatic extracranial carotid atherosclerotic disease.

Studie Overzicht

Gedetailleerde beschrijving

Randomization for ACT 1 employs a 3:1 ratio of CAS versus CEA. A lead-in phase of up to 400 carotid stent subjects will provide investigators experience with the study devices prior to pivotal enrollment.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

1663

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

    • Arizona
      • Phoenix, Arizona, Verenigde Staten, 85054
        • Mayo Clinic
      • Phoenix, Arizona, Verenigde Staten, 85006
        • St. Luke's Hospital-Phoenix
    • California
      • Mountain View, California, Verenigde Staten, 94040
        • Fogarty Clinical Research Inc./El Camino Hospital
      • Newport Beach, California, Verenigde Staten, 92663
        • Hoag Memorial Hospital
      • Orange, California, Verenigde Staten, 92868
        • St. Joseph Hospital
      • San Diego, California, Verenigde Staten, 92120
        • Kaiser Foundation Hospital-San Diego
    • District of Columbia
      • Washington, D.C., District of Columbia, Verenigde Staten, 20010
        • Washington Hospital Center
    • Florida
      • Miami, Florida, Verenigde Staten, 33176
        • Baptist Cardiac and Vascular Institute
    • Georgia
      • Atlanta, Georgia, Verenigde Staten, 30309
        • Piedmont Hospital
      • Gainesville, Georgia, Verenigde Staten, 30501
        • Northeast Georgia Medical Center
    • Hawaii
      • Honolulu, Hawaii, Verenigde Staten, 96817
        • Hawaii Permanente Medical Group - Kaiser
    • Illinois
      • Chicago, Illinois, Verenigde Staten, 60612
        • Rush University Medical Center
      • Chicago, Illinois, Verenigde Staten, 60611
        • Northwestern University Memorial Hospital
      • Springfield, Illinois, Verenigde Staten, 62701
        • St. John's Hospital and Memorial Medical Center/ Prairie Heart Cooperative
    • Indiana
      • Fort Wayne, Indiana, Verenigde Staten, 46805
        • Parkview Hospital
    • Kentucky
      • Lexington, Kentucky, Verenigde Staten, 40503
        • Central Baptist Hospital
      • Louisville, Kentucky, Verenigde Staten, 40292
        • University of Louisville
    • Louisiana
      • Lafayette, Louisiana, Verenigde Staten, 70506
        • Cardiovascular Institute of the South
      • New Orleans, Louisiana, Verenigde Staten, 70121
        • Ochsner Clinic Foundation
    • Maryland
      • Baltimore, Maryland, Verenigde Staten, 21224
        • Johns Hopkins Bayview Medical Center
    • Massachusetts
      • Boston, Massachusetts, Verenigde Staten, 02114
        • Massachusetts General Hospital
    • Michigan
      • Detroit, Michigan, Verenigde Staten, 48201
        • Harper University Hospital/Detroit Medical Center
      • Flint, Michigan, Verenigde Staten, 48507
        • McLaren Regional Medical Center
      • Royal Oak, Michigan, Verenigde Staten, 48073
        • William Beaumont Hospital
    • Missouri
      • Saint Louis, Missouri, Verenigde Staten, 63141
        • St. John's Mercy Medical Center
    • New Hampshire
      • Lebanon, New Hampshire, Verenigde Staten, 03756
        • Dartmouth Hitchcock Medical Center
    • New Jersey
      • Camden, New Jersey, Verenigde Staten, 08103
        • Our Lady of Lourdes Medical Center
    • New York
      • Albany, New York, Verenigde Staten, 12208
        • Albany Medical Center
      • Buffalo, New York, Verenigde Staten, 14209
        • Millard Fillmore Hospital
      • New York, New York, Verenigde Staten, 10021
        • Lenox Hill Hospital
      • New York, New York, Verenigde Staten, 10016
        • NYU Medical Center
      • New York, New York, Verenigde Staten, 10021
        • Columbia Presbyterian Hospital
      • Rochester, New York, Verenigde Staten, 14623
        • University of Rochester-Strong Memorial Hospital
      • Roslyn, New York, Verenigde Staten, 11576
        • St. Francis Hospital
    • North Carolina
      • Durham, North Carolina, Verenigde Staten, 27609
        • Duke University Medical Center
      • Raleigh, North Carolina, Verenigde Staten, 27610
        • Wakemed Health and Hospital
      • Winston-Salem, North Carolina, Verenigde Staten, 27103
        • Forsyth Medical Center
    • Ohio
      • Cleveland, Ohio, Verenigde Staten, 44195
        • Cleveland Clinic Foundation
      • Columbus, Ohio, Verenigde Staten, 43214
        • Riverside Methodist Hospital
    • Oregon
      • Portland, Oregon, Verenigde Staten, 97239
        • Oregon Health and Science University Stroke Center
    • Pennsylvania
      • Beaver, Pennsylvania, Verenigde Staten, 15009
        • Heritage Valley Health System
      • Harrisburg, Pennsylvania, Verenigde Staten, 17110
        • Harrisburg Hospital / Pinnacle Health
      • Philadelphia, Pennsylvania, Verenigde Staten, 19104
        • Hospital of the University of Pennsylvania
      • Pittsburgh, Pennsylvania, Verenigde Staten, 15213
        • University of Pittsburgh Medical Center (UPMC)
      • Pittsburgh, Pennsylvania, Verenigde Staten, 15232
        • University of Pittsburgh Physicians Division of Vascular Surgery/Shadyside Medical
      • Washington, Pennsylvania, Verenigde Staten, 15301
        • Allegheny General Hospital
      • Wyomissing, Pennsylvania, Verenigde Staten, 19610
        • St. Joseph's Medical Center/Berks Cardiologists
    • South Carolina
      • Columbia, South Carolina, Verenigde Staten, 29204
        • Providence Hospital-SC
    • South Dakota
      • Sioux Falls, South Dakota, Verenigde Staten, 57108
        • North Central Heart Institute
    • Tennessee
      • Germantown, Tennessee, Verenigde Staten, 38138
        • The Stern Cardiovascular Center/Methodist Germantown Hospital
      • Kingsport, Tennessee, Verenigde Staten, 37660
        • Wellmont Holston Valley Medical Center
      • Knoxville, Tennessee, Verenigde Staten, 37934
        • Mercy Medical West/Turkey Creek Medical Center
    • Texas
      • Austin, Texas, Verenigde Staten, 78756
        • Heart Hospital of Austin
      • Austin, Texas, Verenigde Staten, 78705
        • Westlake Medical Center/Seton Heart Institute
      • Dallas, Texas, Verenigde Staten, 75231
        • Presbyterian Hospital of Dallas
      • Dallas, Texas, Verenigde Staten, 75216
        • Dallas Veteran's Administration Medical Center
      • Houston, Texas, Verenigde Staten, 77030
        • St. Luke's Episcopal Hospital
    • Virginia
      • Norfolk, Virginia, Verenigde Staten, 23507
        • Chesapeake General Hospital/Sentara Norfolk General Hospital
      • Richmond, Virginia, Verenigde Staten, 23226
        • St. Mary's Hospital / Virginia Cardiovascular Specilists
    • Washington
      • Spokane, Washington, Verenigde Staten, 99204
        • Deaconess Medical Center
    • Wisconsin
      • Madison, Wisconsin, Verenigde Staten, 53792
        • University of Wisconsin
      • Milwaukee, Wisconsin, Verenigde Staten, 53215
        • St. Luke's Medical Center - Milwaukee

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar tot 79 jaar (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  1. The subject must be > 18 and < 80 years of age.
  2. Female subjects of child bearing potential must have a documented negative pregnancy test within 30 days prior to the study procedure.
  3. 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.
  4. 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.
  5. 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).
  6. The subject must agree to return for all required follow-up visits.
  7. Subject has a discrete lesion located in the internal carotid artery (ICA); the contiguous common carotid artery (CCA) may be involved.
  8. 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.
  9. 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.

  10. Based on the subject's anatomy, the Investigator should expect to successfully deliver the stent to the target lesion (absence of extreme tortuosity, etc.).
  11. 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.

  1. 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.
  2. 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.
  3. Subject has inability to understand and cooperate with study procedures or provide informed consent.
  4. Subject has had an intracranial hemorrhage or hemorrhagic stroke within 1-year prior the index procedure.
  5. Subject has dementia or has a neurological illness that may confound the neurological evaluation.
  6. Subject has had a known untoward reaction to anesthesia or contrast media not able to be overcome by pre-treatment with medications.
  7. 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.
  8. Subject has Hemoglobin (Hgb) less than 10 gm/dL, platelet count <100,000/mm3 or >500,000/mm3, or known heparin associated thrombocytopenia.
  9. Subject has an active bleeding diathesis or coagulopathy, or will refuse blood transfusions.
  10. Subject has had a GI bleed that would interfere with antiplatelet therapy.
  11. Subject has known cardiac sources of emboli, including paroxysmal or sustained atrial fibrillation (treated or untreated).
  12. Subject has had an myocardial infarction (MI) within the previous 30 days.
  13. Subject has any condition that limits their anticipated survival to less than 3 years.
  14. Subject is a high risk surgical candidate defined as the presence of any one or more of a following medical conditions:

    1. Two or more proximal diseased coronary arteries of > 70% stenosis that have not or cannot be revascularized or < 30 days since revascularization.
    2. Ejection fraction < 30% or New York Heart Association (NYHA) heart failure functional class 3 or higher.
    3. Unstable angina, defined as angina at rest with ECG changes.
    4. On a list for major organ transplant or is being evaluated for such.
    5. Known history of respiratory insufficiency, forced expiratory volume (FEV1) < 30% (predicted).
    6. Chronic renal insufficiency (serum creatinine >2.5 mg/dL).
    7. Uncontrolled diabetes defined as fasting glucose > 400 mg/dL.
    8. Concurrent requirement for any invasive procedure 30 days pre- or post-procedure.
    9. Age ≥ 80 years.
  15. 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.

    1. Subject has had radiation treatment to the neck.
    2. Subject has had a radical neck dissection.
    3. Surgically inaccessible lesions (i.e., lesions extending above the level of C2).
    4. Spinal immobility - inability to flex neck beyond neutral or kyphotic deformity.
    5. Presence of carotid artery dissection, aneurysm, pseudoaneurysm, arteritis or fibromuscular dysplasia (FMD) in the target vessel.
    6. Hemodynamically significant (>60%) stenosis of the right or left common carotid artery (LCCA/RCCA) below the clavicle.
    7. Presence of tracheostomy stoma.
    8. Contralateral laryngeal nerve paralysis.
    9. Previous carotid endarterectomy, extracranial-intracranial or carotid subclavian bypass procedure ipsilateral to the carotid stenosis.
    10. 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.
  16. 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.
  17. Intraluminal filling defect thought to represent thrombus.
  18. Excessive calcification: defined as fluoroscopic evidence of calcium that extends circumferentially around the target lesion and includes the majority of the atherosclerotic plaque.
  19. Occlusion (TIMI 0 flow), or string sign of the ipsilateral common or internal carotid artery.
  20. The target lesion requires treatment with a device other than percutaneous transluminal angioplasty (PTA) prior to stent placement.
  21. Significant (> 60%) stenosis proximal or distal to the target lesion that might require revascularization or impede run off.
  22. Presence of a previously placed intravascular stent in the ipsilateral carotid distribution.
  23. Cerebral aneurysm (symptomatic or > 10 mm) or arteriovenous malformation (AVM) of the cerebral vasculature.
  24. Bilateral carotid stenosis (ICA/CCA contralateral stenosis > 60% by ultrasound or angiography).

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Ander
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Actieve vergelijker: 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)
Actieve vergelijker: 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)

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Tijdsspanne
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.
Tijdsspanne: 0 to 365 days
0 to 365 days

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Acute Device Success: Xact Carotid Stent
Tijdsspanne: On day 0 after index procedure
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.
On day 0 after index procedure
Acute Device Success: Embolic Protection Device System
Tijdsspanne: On day 0 after index procedure
Defined as successful deployment and retrieval of the filter in the absence of angiographic distal embolization.
On day 0 after index procedure
Procedural Success
Tijdsspanne: 0 to 30 days post procedure
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
Composite Morbidity Measure
Tijdsspanne: 0 to 30 Days Post-procedure
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.
0 to 30 Days Post-procedure
Freedom From Clinically Indicated Target Lesion Revascularization(CI-TLR)
Tijdsspanne: 0 to 180 days
Freedom from CI-TLR was defined as freedom from reintervention for ≥ 50% restenosis in recently symptomatic patients and ≥ 80% restenosis in asymptomatic patients.
0 to 180 days
Freedom From Clinically Indicated Target Lesion Revascularization
Tijdsspanne: 0 to 365 days
Freedom from CITLR was defined as freedom from reintervention for ≥ 50% restenosis in recently symptomatic patients and ≥ 80% restenosis in asymptomatic patients.
0 to 365 days
Freedom From Clinically Indicated Target Lesion Revascularization
Tijdsspanne: 0 to 730 days
Freedom from CITLR was defined as freedom from reintervention for ≥ 50% restenosis in recently symptomatic patients and ≥ 80% restenosis in asymptomatic patients.
0 to 730 days
Freedom From Clinically Indicated Target Lesion Revascularization
Tijdsspanne: 0 to 1095 days
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
Freedom From Clinically Indicated Target Lesion Revascularization
Tijdsspanne: 0 to 1460 days
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
Freedom From Clinically Indicated Target Lesion Revascularization
Tijdsspanne: 0 to 1825 days
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
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 0 to 365 days
0 to 365 days
Freedom From Mortality
Tijdsspanne: 0 to 730 days
0 to 730 days
Freedom From Mortality
Tijdsspanne: 0 to 1095 days
0 to 1095 days
Freedom From Mortality
Tijdsspanne: 0 to 1460 days
0 to 1460 days
Freedom From Mortality
Tijdsspanne: 0 to 1825 days
0 to 1825 days
Freedom From All Stroke
Tijdsspanne: 0 to 365 days
0 to 365 days
Freedom From All Stroke
Tijdsspanne: 0 to 730 days
0 to 730 days
Freedom From All Stroke
Tijdsspanne: 0 to 1095 days
0 to 1095 days
Freedom From All Stroke
Tijdsspanne: 0 to 1460 days
0 to 1460 days
Freedom From All Stroke
Tijdsspanne: 0 to 1825 days
0 to 1825 days
Death (Non-Hierarchical)
Tijdsspanne: ≤ 30 Days Post Index Procedure
≤ 30 Days Post Index Procedure
All Stroke (Non-Hierarchical)
Tijdsspanne: ≤ 30 Days Post Index Procedure
≤ 30 Days Post Index Procedure
Myocardial Infarction (MI) (Non-Hierarchical)
Tijdsspanne: ≤ 30 Days Post Index Procedure
≤ 30 Days Post Index Procedure
Death, Stroke or Myocardial Infarction (MI) (Hierarchical)
Tijdsspanne: ≤ 30 Days Post Index Procedure
≤ 30 Days Post Index Procedure
Death or Stroke (Hierarchical)
Tijdsspanne: ≤ 30 Days Post Index Procedure
≤ 30 Days Post Index Procedure
Death or Major Stroke (Hierarchical)
Tijdsspanne: ≤ 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
Tijdsspanne: 0 to 5 years
0 to 5 years

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Onderzoekers

  • Hoofdonderzoeker: Jon Matsumura, MD, University of Wisconsin, Madison

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start

1 april 2005

Primaire voltooiing (Werkelijk)

1 maart 2013

Studie voltooiing (Werkelijk)

1 maart 2013

Studieregistratiedata

Eerst ingediend

1 april 2005

Eerst ingediend dat voldeed aan de QC-criteria

1 april 2005

Eerst geplaatst (Schatting)

4 april 2005

Updates van studierecords

Laatste update geplaatst (Werkelijk)

19 juli 2017

Laatste update ingediend die voldeed aan QC-criteria

20 juni 2017

Laatst geverifieerd

1 juni 2017

Meer informatie

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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