MedTrace Logo

The Efficacy and Safety of Non-vItamiN K antaGonist oraL Anticoagulants for intermEdiate Stroke Risk in Patients With Atrial Fibrillation (SINGLE-AF)

NCT04437654 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 1803

Last updated 2026-07-07

No results posted yet for this study

Summary

Atrial fibrillation (AF) increases the risk of stroke, and oral anticoagulation is strongly recommended for patients at high thromboembolic risk. However, for patients with intermediate stroke risk, defined as a CHA₂DS₂-VASc score of 1 in men or 2 in women, randomized evidence supporting anticoagulation remains limited.

The SINGLE-AF trial is an investigator-initiated, multicenter, open-label, adjudicator-masked, superiority randomized trial conducted in South Korea. Eligible patients with AF and intermediate stroke risk are randomly assigned in a 1:1 ratio to receive direct oral anticoagulant (DOAC) therapy or no anticoagulant therapy. Patients assigned to anticoagulation receive a direct oral anticoagulant, primarily apixaban or rivaroxaban. Patients assigned to no anticoagulant therapy do not receive routine oral anticoagulation, although temporary anticoagulation is permitted around rhythm-control procedures when clinically indicated.

The primary objective of this trial is to determine whether DOAC therapy reduces the risk of adverse clinical events compared with no anticoagulant therapy. The primary end point is a composite of stroke, systemic embolism, major bleeding, or cardiovascular death at 24 months after randomization.

Conditions

  • Atrial Fibrillation Patients With Intermediate Stroke Risk

Interventions

DRUG

Anticoagulation group(DOAC group)

Apixaban 5mg twice daily (2.5mg twice daily if meets dose-reduction criteria) or rivaroxaban 20mg once daily (15mg once daily if meets dose-reduction criteria) for 2 years

Sponsors & Collaborators

  • Yonsei University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
19 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-07-28
Primary Completion
2025-08-21
Completion
2025-08-21

Countries

  • South Korea

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04437654 on ClinicalTrials.gov