SAMURAI-NVAF Study: Anticoagulant Therapy for Japanese Stroke Patients With Nonvalvular Atrial Fibrillation (NVAF) "SAMURAI-NVAF"

Active, not recruiting

Phase N/A Results N/A

Trial Description

The purpose of this study is to determine choice of anticoagulant therapy during acute and chronic stages of ischemic stroke/TIA and short- and long-term outcomes, including stroke recurrence and bleeding complications, in patients having nonvalvular atrial fibrillation.



  • This is an observational study. Other
    Intervention Desc: This is an observational, not intervention, study.
    ARM 1: Kind: Experimental
    Label: NVAF, acute ischemic stroke/TIA
    Description: Consecutive acute ischemic stroke/TIA patients with nonvalvular atrial fibrillation; most of these patients begin to receive anticoagulant therapy after index stroke/TIA for secondary prevention

Trial Design

  • Observation: Case-Only
  • Perspective: Prospective
  • Sampling: Non-Probability Sample

Trial Population



Type Measure Time Frame Safety Issue
Primary Ischemic events 2 years Yes
Primary major bleeding 2 years Yes
Secondary modified Rankin Scale 2 years No
Secondary Modification of anticoagulant medication 2 years No