Arrhythmias & electrophysiologyRandomised controlled trial

Anticoagulation for Atrial Fibrillation with Intermediate Stroke Risk

N Engl J MedPublished

  • Randomised controlled trial
  • multicentre
  • open-label
  • adjudicator-masked
  • superiority

Authors' conclusion

Among patients with atrial fibrillation at intermediate risk for stroke, DOAC therapy led to a lower risk of stroke, systemic embolism, major bleeding, or death from cardiovascular causes at 24 months than no anticoagulation.

Study context

Population
Patients with AF at intermediate stroke risk (CHA2DS2-VASc 1 in men, 2 in women), South Korea
Participants
1,803 patients
Comparison
Direct oral anticoagulant (DOAC) vs no anticoagulation
  • DOACn = 902
  • No anticoagulantn = 901reference
Primary endpoint
Composite of:
  • Stroke
  • Systemic embolism
  • Major bleeding
  • CV death
Follow-up
24 months

Primary result

As reported in the abstract

Each group vs no anticoagulantDifference, percentage points (95% CI)P value
DOAC
−1.0(−2.0 to −0.1)
P = 0.03
Each group vs no anticoagulantHazard ratio (95% CI)
DOAC
0.31(0.10–0.94)

Further findings

Stroke · 24 months · cumulative incidence

events

OutcomeDOACNo anticoagulant
CV death00

Systemic embolism

Incidence appeared similar in the two groups

Safety

Serious adverse events

Major bleeding

Incidence appeared similar in the two groups

Original publication

Anticoagulation for Atrial Fibrillation with Intermediate Stroke Risk. N Engl J Med. Published 28 August 2026. doi:10.1056/nejmoa2607978

Summarised from the published abstract; every number is checked against it