Early Anticoagulation Therapy After Endovascular Treatment for Acute Ischemic Stroke With Atrial Fibrillation

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorHao Yonggang

About this trial

The goal of this clinical trial is to learn whether starting a direct oral anticoagulant (DOAC) early after endovascular treatment works to improve outcomes in patients with ischemic stroke related to atrial fibrillation. It will also learn about the safety of early DOAC treatment. The main question it aims to answer is:

\- Does starting DOAC treatment 24 hours after endovascular treatment improve outcomes at 3 months compared with starting it 5 days after randomization?

Researchers will compare early DOAC treatment (started 24 hours after the procedure) with delayed DOAC treatment (started 5 days after randomization) to see if early treatment works better.

Participants will:

* Have atrial fibrillation-related acute ischemic stroke caused by a large vessel blockage in the front part of the brain, within 24 hours of symptom onset * Be randomly assigned to one of two groups after endovascular treatment: early DOAC treatment or delayed DOAC treatment * Take DOACs starting 24 hours after the procedure (early group) or 5 days after randomization (delayed group) * Be followed up for 3 months to check their recovery and any medical problems

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age ≥18 years.

Symptom onset within 24 hours before enrollment.

A confirmed diagnosis of acute anterior circulation ischemic stroke.

A baseline NIHSS score ≥6 at admission.

Disqualifiers

Pre-stroke modified Rankin Scale (mRS) score >2.

Valvular atrial fibrillation.

Known hypersensitivity to anticoagulants or any other contraindication to anticoagulant therapy.

Presence of systemic bleeding disorders, coagulopathy, or a platelet count <100 × 10⁹/L.

Trial design

Design model

Parallel

Treatments tested in this trial

  • Early Initiation of DOAC Therapy

    Other intervention

    Participants assigned to the intervention group will initiate DOAC therapy 24 hours after endovascular therapy (EVT). For patients receiving antiplatelet therapy before enrollment, antiplatelet agents will be discontinued upon initiation of DOAC therapy.

  • Antiplatelet Bridging Followed by DOAC Therapy

    Other intervention

    DOAC therapy will be initiated 5 days after randomization. Before DOAC initiation, patients will receive bridging therapy with a single antiplatelet agent, consisting of either aspirin 100 mg once daily or clopidogrel 75 mg once daily. Dual antiplatelet therapy is not permitted. Antiplatelet therapy will be discontinued upon initiation of DOAC therapy.

Treatment groups

474 Participants
are divided into 2 treatment groups
Group A: Early Initiation of DOAC TherapyExperimental treatment 1 intervention
Group B: Antiplatelet Bridging Followed by DOAC TherapyExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Functional independence (90-day mRS score ≤ 1)

Modified Rankin Scale (mRS). Scores range from 0 to 6, with 0 indicating no symptoms and 6 indicating death. Higher scores indicate a worse outcome.

Time frame
At 90 days after randomization

Secondary outcomes

1

Composite outcome of recurrent ischemic stroke, symptomatic intracranial hemorrhage, or all-cause mortality within 90 days

Time frame
At 90 days after randomization
2

Recurrent ischemic stroke within 90 days

Time frame
At 90 days after randomization
3

Venous thromboembolic events within 90 days

Time frame
At 90 days after randomization
4

Systemic embolic events within 90 days

Time frame
At 90 days after randomization

Other outcomes

Sponsors and contacts

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Hao Yonggang

Lead sponsor

The Fourth Affiliated Hospital of Soochow University

Sponsor institution

This trial is not recruiting at the moment. You can still explore other options: