RELAXED: Recurrent Embolism Lessened by Rivaroxaban for Acute Ischemic

Status Recruiting

Clinical Trial Summary

Early recurrence of cardioembolic stroke in patients with atrial fibrillation is common, reaching approximately 6% within 30 days after initial stroke. Therefore, it is preferable to provide early anticoagulation for cardioembolic stroke. However, early anticoagulation may increase the risk of hemorrhagic transformation of cerebral infarcts. It is difficult to decide the timing of initiation for anticoagulant therapy in stroke patients with non-valvular atrial fibrillation (NVAF). In 2013 the European Heart Rhythm Association presented the practical guides for oral anticoagulants in NVAF patients, which recommend that the optimal time to start anticoagulant therapy should be determined according to the stroke severity. However, this recommendation is principally an experts' opinion and is not suitable in the clinical practice in Japan.

RELAXED, a multicenter observational study is planned to evaluate the efficacy and safety of an oral direct activated coagulation factor Xa inhibitor, rivaroxaban, for acute ischemic stroke patients with NVAF in consideration of the infarct size, timing of initiation for rivaroxaban medication, and other patient characteristics, and thereby to determine the optimal timing of the initiation during acute ischemic stroke. The consecutive acute ischemic stroke / transient ischemic attack (TIA) patients with NVAF who are treated with rivaroxaban will be enrolled. The infarction size at 0-48 hours after stroke onset will be measured by the diffusion weighted image (DWI) MRI. The primary efficacy endpoint is recurrent ischemic stroke within 3 months. The primary safety endpoint is major bleedings within 3 months. The optimal timing to initiate rivaroxaban during acute ischemic stroke is determined by analysis of co-relation between primary endpoints and the infarct size / time to initiate rivaroxaban.

Clinical Trial Description

n/a

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02129920
Study type	Observational [Patient Registry]
Source	Japan Cardiovascular Research Foundation
Contact	Satoko Matsumoto
Phone	+81-6-6872-0010
Email	relaxed@jcvrf.jp
Status	Recruiting
Phase	N/A
Start date	February 2014
Completion date	May 2016

View Details

See also
Status	Clinical Trial	Phase
Recruiting	`NCT05654272` - Development of CIRC Technologies
Terminated	`NCT04115735` - His Bundle Recording From Subclavian Vein
Completed	`NCT04571385` - A Study Evaluating the Efficacy and Safety of AP30663 for Cardioversion in Participants With Atrial Fibrillation (AF)	Phase 2
Completed	`NCT05366803` - Women's Health Initiative Silent Atrial Fibrillation Recording Study	N/A
Completed	`NCT02864758` - Benefit-Risk Of Arterial THrombotic prEvention With Rivaroxaban for Atrial Fibrillation in France
Recruiting	`NCT05442203` - Electrocardiogram-based Artificial Intelligence-assisted Detection of Heart Disease	N/A
Completed	`NCT05599308` - Evaluation of Blood Pressure Monitor With AFib Screening Feature	N/A
Completed	`NCT03790917` - Assessment of Adherence to New Oral anTicoagulants in Atrial Fibrillation patiEnts Within the Outpatient registrY
Enrolling by invitation	`NCT05890274` - Atrial Fibrillation (AF) and Electrocardiogram (EKG) Interpretation Project ECHO	N/A
Recruiting	`NCT05316870` - Construction and Effect Evaluation of Anticoagulation Management Model in Atrial Fibrillation	N/A
Recruiting	`NCT05266144` - Atrial Fibrillation Patients Treated With Catheter Ablation
Not yet recruiting	`NCT06023784` - The Impact of LBBAP vs RVP on the Incidence of New-onset Atrial Fibrillation in Patients With Atrioventricular Block	N/A
Recruiting	`NCT05572814` - Transform: Teaching, Technology, and Teams	N/A
Recruiting	`NCT04092985` - Smart Watch iECG for the Detection of Cardiac Arrhythmias
Completed	`NCT04087122` - Evaluate the Efficiency Impact of Conducting Active Temperature Management During Cardiac Cryoablation Procedures	N/A
Completed	`NCT06283654` - Relieving the Emergency Department by Using a 1-lead ECG Device for Atrial Fibrillation Patients After Pulmonary Vein Isolation
Recruiting	`NCT05416086` - iCLAS™ Cryoablation System Post-Market Clinical Follow-up (PMCF) Study	N/A
Completed	`NCT05067114` - Solutions for Atrial Fibrillation Edvocacy (SAFE)
Completed	`NCT04546763` - Study Watch AF Detection At Home
Completed	`NCT03761394` - Pulsewatch: Smartwatch Monitoring for Atrial Fibrillation After Stroke	N/A

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

RELAXED: Recurrent Embolism Lessened by Rivaroxaban for Acute Ischemic Stroke — RELAXED

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms