Observational analysis of hospitalized patients treated with andexanet alfa

Retrospective Real World Evidence Study to Describe Characteristics and Outcomes in Dutch Patients Admitted to the Hospital With a Factor Xa Inhibitor-associated Bleeding Treated With Andexanet Alfa

Observational AstraZeneca · NCT05898412

This study looks at hospitalized patients who received andexanet alfa to see how well it works and what happens to them afterward, especially regarding blood clots.

Quick facts

Study typeObservational
Enrollment100 (estimated)
Ages18 Years and up
SexAll
SponsorAstraZeneca Industry-sponsored
Locations1 site (Amsterdam)
Trial IDNCT05898412 on ClinicalTrials.gov

What this trial studies

This observational retrospective study analyzes data from hospitalized patients in approximately 10 Dutch hospitals who were treated with andexanet alfa, a reversal agent for factor Xa inhibitors. The study aims to characterize patient profiles and outcomes, particularly focusing on the incidence of thrombotic events following treatment. By examining real-world data, the research seeks to provide insights into the effectiveness and safety of andexanet alfa compared to other treatment options like prothrombin complex concentrate. The findings will help inform clinicians about the appropriate use of andexanet alfa in managing major bleeding events.

Who should consider this trial

Good fit: Ideal candidates for this study are hospitalized patients aged 18 years and older who have received at least one dose of andexanet alfa.

Not a fit: Patients who have not been treated with andexanet alfa or are under 18 years old may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the understanding of andexanet alfa's effectiveness, leading to improved treatment protocols for patients experiencing major bleeding.

How similar studies have performed: Previous studies have shown that andexanet alfa may be more effective than alternative treatments, but this specific observational approach is novel in the Dutch context.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥ 18 years
* Received at least one dose of andexanet alfa

Exclusion Criteria:

None

Where this trial is running

Amsterdam

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions HemorrhageObservationalRetrospectiveMajor bleedingAndexanet alfaFactor Xa inhibitorPatient characteristicsTreatment strategy
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.