Multi-arm Optimization of Stroke Thrombolysis (MOST)

  • STATUS
    Recruiting
  • End date
    Apr 19, 2025
  • participants needed
    1200
  • sponsor
    Washington University School of Medicine
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Updated on 19 June 2022
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Summary

The primary efficacy objective of the MOST trial is to determine if argatroban (100µg/kg bolus followed by 3µg/kg per minute for 12 hours) or eptifibatide (135µg/kg bolus followed by 0.75µg/kg/min infusion for two hours) results in improved 90-day modified Rankin scores (mRS) as compared with placebo in acute ischemic stroke (AIS) patients treated with standard of care thrombolysis (0.9mg/kg IV rt-PA or 0.25mg/kg IV tenecteplase or TNK) within three hours of symptom onset. Patients may also receive endovascular thrombectomy (ET) per usual care. Time of onset is defined as the last time the patient was last known to be well.

Details
Condition Acute Ischemic Stroke
Treatment Placebo, Eptifibatide, Argatroban
Clinical Study IdentifierNCT03735979
SponsorWashington University School of Medicine
Last Modified on19 June 2022

Eligibility

 Yes No Not Sure

Inclusion Criteria

Acute ischemic stroke patients
Treated with 0.9mg/kg IV rt-PA or 0.25mg/kg IV TNK within 3 hours of stroke onset or time last known well
Age ≥ 18
NIHSS score ≥ 6 prior to IV thrombolysis
Able to receive assigned study drug within 60 minutes but no later than 75 minutes of initiation of IV thrombolysis

Exclusion Criteria

Known allergy or hypersensitivity to argatroban or eptifibatide
Previous stroke in the past 90 days
Previous intracranial hemorrhage, neoplasm, subarachnoid hemorrhage, or arterial venous malformation
Clinical presentation suggested a subarachnoid hemorrhage, even if initial CT scan was normal
Any surgery, or biopsy of parenchymal organ in the past 30 days
Trauma with internal injuries or ulcerative wounds in the past 30 days
Severe head trauma in the past 90 days
Systolic blood pressure persistently >180mmHg post-IV thrombolysis despite antihypertensive intervention
Diastolic blood pressure persistently >105mmHg post-IV thrombolysis despite antihypertensive intervention
Serious systemic hemorrhage in the past 30 days
Known hereditary or acquired hemorrhagic diathesis, coagulation factor deficiency, or oral anticoagulant therapy with INR >1.5
Positive urine or serum pregnancy test for women of child bearing potential
Glucose <50 or >400 mg/dl
Platelets <100,000/mm3
Hematocrit <25 %
Elevated pre-thrombolysis PTT above laboratory upper limit of normal
Creatinine > 4 mg/dl
Ongoing renal dialysis, regardless of creatinine
Received Low Molecular Weight heparins (such as Dalteparin, Enoxaparin, Tinzaparin) in full dose within the previous 24 hours
Abnormal PTT within 48 hours prior to randomization after receiving heparin or a direct thrombin inhibitor (such as bivalirudin, argatroban, dabigatran or lepirudin)
Received Factor Xa inhibitors (such as Fondaparinaux, apixaban or rivaroxaban) within the past 48 hours
Received glycoprotein IIb/IIIa inhibitors within the past 14 days
Pre-existing neurological or psychiatric disease which confounded the neurological or functional evaluations e.g., baseline modified Rankin score >3
Other serious, advanced, or terminal illness or any other condition that the investigator felt would pose a significant hazard to the patient if rt-PA, TNK, eptifibatide or argatroban therapy was initiated
Example: known cirrhosis or clinically significant hepatic disease
Current participation in another research drug treatment or interventional device
Informed consent from the patient or the legally authorized representative was not or could not be obtained
trial - Subjects could not start another experimental agent until after 90
High density lesion consistent with hemorrhage of any degree
days
Large (more than 1/3 of the middle cerebral artery) regions of clear hypodensity on the baseline CT Scan. Sulcal effacement and/or loss of grey-white differentiation alone are not contraindications for treatment
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