Evaluating anticoagulant levels in patients with acute stroke

Evaluation of Non-Vitamin K Antagonist Oral Anticoagulants Concentration Among Patients With Acute Stroke (The Direct Oral AntiCoagulant Registry in Taiwan-Emergent Department, DOACT-ED)

Observational National Taiwan University Hospital · NCT06144866

This study is testing the levels of certain blood-thinning medications in patients with atrial fibrillation who have had an acute stroke to see how these levels affect their recovery and safety.

Quick facts

Study typeObservational
Enrollment1000 (estimated)
Ages20 Years and up
SexAll
SponsorNational Taiwan University Hospital Academic / other
Locations1 site (Taipei)
Trial IDNCT06144866 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess the levels of non-vitamin K antagonist oral anticoagulants (NOACs) in patients diagnosed with atrial fibrillation who are admitted for acute ischemic stroke or related conditions. It focuses on directly measuring the concentration of NOACs, such as dabigatran, rivaroxaban, apixaban, and edoxaban, to understand their pharmacological effects and safety profiles. The study will prospectively record NOAC levels and analyze how these levels correlate with patient outcomes, particularly in relation to bleeding risks and medication adherence. The findings could provide valuable insights for clinical decision-making in emergency situations involving anticoagulated patients.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 20 years and older with a diagnosis of atrial fibrillation who are currently on NOAC therapy and admitted for acute ischemic stroke or related conditions.

Not a fit: Patients who have experienced intracranial hemorrhage due to trauma or those who decline to provide informed consent may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve the management of anticoagulant therapy in patients with acute stroke, potentially reducing the risk of adverse reactions.

How similar studies have performed: Previous studies have demonstrated the importance of monitoring NOAC levels, but this specific approach to evaluating levels in acute stroke patients is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age ≥ 20 years
2. Having AF diagnosis
3. Under NOACs therapy including dabigatran, rivaroxaban, apixaban and edoxaban.
4. Admitted for acute IS, transient ischemic attack (TIA), ICH or major bleeding

Exclusion Criteria:

1. The ICH is resulted from trauma.
2. Decline the inform consent.

Where this trial is running

Taipei

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 Ischemic StrokeAnticoagulant Adverse ReactionIschemic strokeIntracranial hemorrhageDirect oral anticoagulantDrug level
Last reviewed 2026-06-13 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.