BoxX-NoAF Clinical Trial

NCT ID: NCT06989775

Last Updated: 2026-01-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

960 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-10-24

Study Completion Date

2031-11-30

Brief Summary

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Post Operative Atrial Fibrillation (POAF) is the most common complication of cardiac surgery. POAF incidence can exceed 50% depending on the patient baseline characteristics and surgery type. Patients with POAF tend to have worse acute and long-term clinical outcomes. BoxX-NoAF is a randomized trial to evaluate if prophylactic ablation and exclusion of the Left Atrial Appendage at the time of other routine cardiac surgery can reduce the incidence of post operative AF and clinical AF during long term follow up in patients who have not yet developed AF but are at risk.

Detailed Description

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Conditions

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Post Operative Atrial Fibrillation Atrial Fibrillation, Postoperative

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors

Study Groups

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Treatment

Index cardiac surgery + Ablation + Left Atrial Appendage Exclusion with AtriClip

Group Type EXPERIMENTAL

Isolator® Synergy™ EnCompass® Ablation System and AtriClip® LAA Exclusion System

Intervention Type DEVICE

Box lesion ablation with the Isolator Synergy EnCompass Clamp System and LAAE using the AtriClip LAA Exclusion System at the time of planned cardiac surgery

Control

Index cardiac surgery only

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Isolator® Synergy™ EnCompass® Ablation System and AtriClip® LAA Exclusion System

Box lesion ablation with the Isolator Synergy EnCompass Clamp System and LAAE using the AtriClip LAA Exclusion System at the time of planned cardiac surgery

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Planned and clinically indicated for cardiac surgical procedure requiring cardiac bypass and opening of the pericardium
* Age ≥ 65 years and CHA2DS2-VASc ≥ 3

Exclusion Criteria

* Documented history of atrial fibrillation or atrial flutter anytime prior to the cardiac surgery
* Prior procedure involving opening the pericardium or entering the pericardial space
* Patients undergoing off-pump surgery
* Prior LAA occlusion, exclusion, or removal (surgical or percutaneous)
* Presence of a permanent pacemaker
* Infiltrative cardiomyopathies (i.e. amyloidosis)
* Planned cardiac surgical procedure using non-sternotomy approaches
* Patients whose planned procedure is a heart transplant or implantation of any long-term ventricular assist devices
* Presence of ventricular arrhythmia
* Active endocarditis
* NYHA Class IV heart failure symptoms
* Preoperative need for an intra-aortic ballon pump or intravenous inotropes
* Active systemic infection at the time of cardiac surgery requiring antibiotics
* Known allergy to Nitinol or nickel sensitivity
* Known medical condition with expected survival of less than 1 year
* Other comorbidities that in the Investigator's opinion make the subject unsuitable candidate to complete the protocol required intervention or visits
* Current enrollment in an investigation or trial or an investigational devices or investigational drug that would interfere with this trial
* Mental impairment or other psychiatric conditions which may not allow the patient to understand the nature, significance, and scope of the trial.
* Pregnancy
* Known severe symptomatic carotid disease
Minimum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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AtriCure, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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St. Bernards Medical Center

Jonesboro, Arkansas, United States

Site Status RECRUITING

Morton Plant Hospital - BayCare Health System, Inc.

Clearwater, Florida, United States

Site Status RECRUITING

St. Joseph's Hospital - BayCare Health System, Inc.

Clearwater, Florida, United States

Site Status RECRUITING

Orlando Health, Inc.

Orlando, Florida, United States

Site Status RECRUITING

Wellstar Health System

Marietta, Georgia, United States

Site Status RECRUITING

Corewell Health

Grand Rapids, Michigan, United States

Site Status RECRUITING

Ascension Saint Thomas

Nashville, Tennessee, United States

Site Status RECRUITING

Hamilton General Hospital

Hamilton, Ontario, Canada

Site Status NOT_YET_RECRUITING

Countries

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United States Canada

Central Contacts

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BoxX-NoAF Trial Inbox

Role: CONTACT

1 (513) 755-4100

Facility Contacts

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Cary Ball

Role: primary

870-207-3812

Arielle Campos

Role: primary

813-533-1418

Arielle Campos

Role: primary

813-533-1418

George Ngo

Role: primary

321-843-9657

Autumn Lee

Role: primary

470-793-4040

Denise Wittenbach, BSN RN, CCRC

Role: primary

616-391-2066

Cassie Hodges

Role: primary

615-222-3815

Courtney Mullen

Role: primary

905-521-2100 ext. 44342

Other Identifiers

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CP-2024-02

Identifier Type: -

Identifier Source: org_study_id

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