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Solitaire With the Intention For Thrombectomy as PRIMary Endovascular Treatment (SWIFT PRIME) Trial (SWIFT PRIME)

This study has been completed.
Information provided by (Responsible Party):
Medtronic - MITG Identifier:
First received: August 2, 2012
Last updated: February 25, 2015
Last verified: February 2015

August 2, 2012
February 25, 2015
November 2012
January 2015   (Final data collection date for primary outcome measure)
90-day global disability assessed via the blinded evaluation of modified Rankin score (mRS). [ Time Frame: 90 days ]
Same as current
Complete list of historical versions of study NCT01657461 on Archive Site
  • Death due to any cause at 90 days [ Time Frame: 90 days ]
  • Functional independence as defined by modified Rankin Scale (mRS) score ≤2 at 90 days [ Time Frame: 90 days ]
  • Change in NIH Stroke Scale score at 27 ± 6 hrs post randomization [ Time Frame: 27 hrs ]
  • Death due to any cause at 90 days [ Time Frame: 90 days ]
  • Functional independence as defined by modified Rankin Scale (mRS) score ≤2 at 90 days [ Time Frame: 90 days ]
  • Change in NIH Stroke Scale score at 27 ±3hrs post randomization [ Time Frame: 27 hrs ]
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Solitaire With the Intention For Thrombectomy as PRIMary Endovascular Treatment (SWIFT PRIME) Trial
Solitaire™ FR With the Intention For Thrombectomy as Primary Endovascular Treatment for Acute Ischemic Stroke (SWIFT PRIME) Clinical Trial
This study is to determine if patients experiencing an Acute Ischemic Stroke due to large vessel occlusion, treated with combined IV t-PA and Solitaire FR within 6 hours of symptom onset have less stroke-related disability than those patients treated with IV t-PA alone.
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Not Provided
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Acute Ischemic Stroke
  • Drug: intravenous (IV) recombinant human tissue plasminogen activator (rtPA)
  • Device: Solitaire FR
  • Experimental: IV t-PA with SOLITAIRE™ FR Device
    Dual IV tPA therapy and adjunctive treatment with the Solitaire FR
    Intervention: Device: Solitaire FR
  • Active Comparator: IV t-PA
    IV infusion of tPA
    Intervention: Drug: intravenous (IV) recombinant human tissue plasminogen activator (rtPA)

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
January 2015
January 2015   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  1. Age 18 - 80
  2. Clinical signs consistent with acute ischemic stroke
  3. Prestroke Modified Rankin Score ≤ 1
  4. NIHSS ≥ 8 and < 30 at the time of randomization
  5. Initiation of IV t-PA within 4.5 hours of onset of stroke symptoms (onset time is defined as the last time when the patient was witnessed to be at baseline), with investigator verification that the subject has received / is receiving the correct IV t-PA dose for the estimated weight prior to randomization.
  6. Thrombolysis in Cerebral Infarction (TICI) 0-1 flow in the intracranial internal carotid artery, M1 segment of the MCA, or carotid terminus confirmed by CT or MR angiography that is accessible to the Solitaire™ FR Device.
  7. Subject is able to be treated within 6 hours of onset of stroke symptoms and within 1.5 hours (90 minutes) from CTA or MRA to groin puncture.
  8. Subject is willing to conduct protocol-required follow-up visits.
  9. An appropriate signed and dated Informed Consent Form (as allowed according to country regulations and approved by ethics committee and/or IRB) has been obtained
  10. Subject is affiliated with a social security system (if required by individual country regulations).
  11. Subject meets national regulatory criteria for clinical trial participation.

Exclusion Criteria:

  1. Subject who is contraindicated to IV t-PA as per local national guidelines.
  2. Female who is pregnant or lactating or has a positive pregnancy test at time of admission.
  3. As applicable by French law, subject who is a protected individual such as an incompetent adult or incarcerated person.
  4. Rapid neurological improvement prior to study randomization suggesting resolution of signs/symptoms of stroke.
  5. Known serious sensitivity to radiographic contrast agents.
  6. Known sensitivity to Nickel, Titanium metals or their alloys.
  7. Current participation in another investigational drug or device treatment study.
  8. Known hereditary or acquired hemorrhagic diathesis, coagulation factor deficiency. (A subject without history or suspicion of coagulopathy does not require INR or prothrombin time lab results to be available prior to enrollment.)
  9. Renal Failure as defined by a serum creatinine > 2.0 mg/dl (or 176.8 μmol/l) or Glomerular Filtration Rate [GFR] < 30Warfarin therapy with INR greater than 1.7.
  10. Subject who requires hemodialysis or peritoneal dialysis, or who have a contraindication to an angiogram for whatever reason
  11. Life expectancy of less than 90 days.
  12. Clinical presentation suggests a subarachnoid hemorrhage, even if initial CT or MRI scan is normal.
  13. Suspicion of aortic dissection.
  14. Subject with a co-morbid disease or condition that would confound the neurological and functional evaluations or compromise survival or ability to complete follow-up assessments.
  15. Subject currently uses or has a recent history of illicit drug(s) or abuses alcohol (defined as regular or daily consumption of more than 4 alcoholic drinks per day).
  16. Known history of arterial tortuosity, pre-existing stent, and/or other arterial disease which would prevent the device from reaching the target vessel and/or preclude safe recovery of the device.

Imaging Exclusion Criteria:

  1. Computed tomography (CT) or Magnetic Resonance Imaging (MRI) evidence of hemorrhage on presentation.
  2. CT or MRI evidence of mass effect or intra-cranial tumor (except small meningioma).
  3. CT or MRI evidence of cerebral vasculitis.
  4. CT showing hypodensity or MRI showing hyperintensity involving greater than 1/3 of the middle cerebral artery (MCA) territory (or in other territories, >100 cc of tissue) on presentation.
  5. Baseline non-contrast CT or DWI MRI evidence of a moderate/large core defined as extensive early ischemic changes of Alberta Stroke Program Early CT score (ASPECTS) < 6.
  6. CT or MRI evidence of a basilar artery (BA) occlusion or posterior cerebral artery (PCA) occlusion.
  7. CTA or MRA evidence of carotid dissection or complete cervical carotid occlusion requiring stenting at the time of the index procedure (i.e., mechanical thrombectomy)
  8. Imaging evidence that suggests, in the opinion of the investigator, the subject is not appropriate for mechanical thrombectomy intervention (e.g., inability to navigate to target lesion, moderate/large infarct with poor collateral circulation, etc).
Sexes Eligible for Study: All
18 Years to 80 Years   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
United States
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Medtronic - MITG
Medtronic - MITG
Not Provided
Principal Investigator: Jeffrey Saver, MD University of California, Los Angeles
Medtronic - MITG
February 2015

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP