Last updated on July 2019

A Study in Patients With Acute Major Bleeding to Evaluate the Ability of Andexanet Alfa to Reverse the Anticoagulation Effect of Direct and Indirect Oral Anticoagulants (Extension Study)

Are you eligible to participate in this study?

You may be eligible for this study if you meet the following criteria:

  • Conditions: Hemorrhage
  • Age: Between 18 - 100 Years
  • Gender: Male or Female

  1. Acute major bleeding episode requiring urgent reversal of anticoagulation; defined by at least one of the following:
    • Acute bleeding that is potentially life-threatening, OR
    • Acute bleeding associated with a fall in hemoglobin level by 2 g/dL, OR
    • Acute bleeding associated with a hemoglobin level of 8 g/dL if no baseline hemoglobin is available, OR
    • Acute bleeding in a critical area or organ such as intraspinal, pericardial, or intracranial.
  2. If bleeding is intracranial or intraspinal, the patient must have undergone a head CT or MRI scan demonstrating the bleeding.
  3. Patient received or is believed to have received one of the following within 18 hours prior to andexanet administration: apixaban, rivaroxaban, edoxaban or enoxaparin.
  4. For patients with intracranial bleeding, there must be a reasonable expectation that andexanet treatment will commence within 2 hours of the baseline imaging evaluation.
  5. The patient is scheduled to undergo surgery in less than 12 hours, with the exception of minimally invasive surgery/procedures.
  6. A patient with an intracerebral hemorrhage has any of the following:
    • Glasgow coma score < 7, OR
    • Intracerebral hematoma > 60 cc as assessed by CT or MRI
  7. Patients with visible, musculoskeletal or intra-articular bleeding as their qualifying bleed.
  8. Expected survival of less than 1 month
  9. Recent history (within 2 weeks) of a diagnosed thrombotic event (TE) as follows: venous thromboembolism, myocardial infarction, disseminated intravascular coagulation (DIC), cerebral vascular accident, transient ischemic attack, unstable angina pectoris hospitalization or severe peripheral vascular disease within 2 weeks prior to screening.
  10. Severe sepsis or septic shock at the time of Screening.
  11. Pregnant or a lactating female.
  12. Patient has received any of the following drugs or blood products within 7 days of
    • Vitamin K antagonist (VKA)
    • Dabigatran
    • Prothrombin Complex Concentrate products (PCC) or recombinant factor VIIa (rfVIIa)
    • Whole blood, plasma fractions
  13. Treated with an investigational drug <30 days prior to Screening
  14. Planned administration of PCC, fresh frozen plasma (FFP) or rfVIIa from Screening until within 12 hours after the end of the andexanet infusion.

Recruitment Status: Open

Brief Description Eligibility Contact Research Team

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