NCT02881255

Brief Summary

The purpose of the study is to compare standard, single chamber transvenous ICD to sub-cutaneous ICD in occurrence of perioperative and long term device related complications and failed appropriate clinical shocks and arrhythmic death.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
544

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2017

Longer than P75 for not_applicable

Geographic Reach
1 country

14 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 2, 2016

Completed
24 days until next milestone

First Posted

Study publicly available on registry

August 26, 2016

Completed
6 months until next milestone

Study Start

First participant enrolled

February 22, 2017

Completed
4.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2022

Completed
10 days until next milestone

Study Completion

Last participant's last visit for all outcomes

February 10, 2022

Completed
Last Updated

May 31, 2022

Status Verified

May 1, 2022

Enrollment Period

4.9 years

First QC Date

August 2, 2016

Last Update Submit

May 26, 2022

Conditions

Keywords

implantable cardioverter defibrillatorsubcutaneous ICDtransvenous ICDinherited arrhythmia syndrome

Outcome Measures

Primary Outcomes (2)

  • Composite of lead-related perioperative complications

    This composite includes: Hemothorax or pneumothorax; Cardiac perforation, tamponade, pericardial effusion or pericarditis; Lead dislodgement or loss of pacing/sensing requiring revision; New moderate-severe or severe tricuspid insufficiency (3+ or 4+); Ipsilateral upper extremity deep venous thrombosis.

    6 months post-ICD implantation

  • Additional safety composite

    This composite includes: Device-related infection requiring surgical revision; Significant wound hematoma (requiring evacuation or interruption of oral anticoagulation); Myocardial infarction; Stroke; Death;

    6 months post-ICD implantation

Secondary Outcomes (9)

  • Late device-related complications

    Greater than 6 months post-ICD implantation

  • Total device-related complications

    Greater than 6 months post-ICD implantation

  • Occurrence of failed appropriate shock or arrhythmic death

    6 months post-ICD implantation

  • Hospital, emergency department or clinic visits for ICD therapy, device-related complications, arrhythmia or heart failure

    6 months post-ICD implantation

  • Any inappropriate ICD therapy shock

    6 months post-ICD implantation

  • +4 more secondary outcomes

Study Arms (2)

Subcutaneous ICD

OTHER

Patient will receive a subcutaneous implantable cardioverter defibrillator (Boston Scientific EMBLEM)

Device: Implantable Cardioverter Defibrillator

Transvenous ICD

OTHER

Patient will receive a single-chamber, transvenous implantable cardioverter defibrillator (from any manufacturer) which as the capability for remote monitoring.

Device: Implantable Cardioverter Defibrillator

Interventions

Patients will be randomized to receive either a subcutaneous or transvenous ICD.

Subcutaneous ICDTransvenous ICD

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patient is ≥ 18 - 60 years old AND has a standard indication for ICD; OR
  • Patient is ≥ 18 years old AND has any one of the following present:
  • An inherited arrhythmia syndrome (i.e. Long QT, Brugada, ARVC, hypertrophic or dilated cardiomyopathy, early repolarization syndrome, idiopathic ventricular fibrillation, etc.)
  • Prior pacemaker or ICD removal for infection
  • Need for hemodialysis
  • Prior heart valve surgery (repair or replacement)
  • Chronic obstructive pulmonary disease (with FEV1 \< 1.5 L)

You may not qualify if:

  • Mechanical tricuspid valve
  • Fontan repair
  • Presence of an intra-cardiac shunt
  • Known lack of upper extremity venous access
  • Need for cardiac pacing for bradycardia indication
  • PR interval of \> 240 msec
  • Patients with permanent pacemaker
  • Clinical indication for biventricular pacing
  • Patients unwilling to provide informed consent or comply with follow-up
  • Pregnant at time of enrollment and implant
  • Patients who currently have a ventricular assist device (i.e. LVAD)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (14)

University of Calgary

Calgary, Alberta, Canada

Location

Mazankowski Alberta Heart Institute

Edmonton, Alberta, Canada

Location

St. Paul's Hospital

Vancouver, British Columbia, Canada

Location

Victoria Cardiac Arrhythmia Trials Inc.

Victoria, British Columbia, Canada

Location

Hamilton General Hospital

Hamilton, Ontario, Canada

Location

Southlake Regional Health Centre

Newmarket, Ontario, Canada

Location

University of Ottawa Heart Institute

Ottawa, Ontario, Canada

Location

St. Michael's Hospital

Toronto, Ontario, Canada

Location

Sunnybrook Health Sciences Centre

Toronto, Ontario, Canada

Location

Toronto General Hospital, University Health Network

Toronto, Ontario, Canada

Location

IUCPQ-Universite Laval

Laval, Quebec, Canada

Location

McGill University Health Centre

Montreal, Quebec, Canada

Location

Montreal Heart Institute

Montreal, Quebec, Canada

Location

Centre Hospitalier Universitaire de Sherbrooke (CHUS)

Sherbrooke, Quebec, Canada

Location

Related Publications (3)

  • Mondesert B, Bashir J, Philippon F, Dubuc M, Amit G, Exner D, Joza J, Birnie DH, Lane C, Tsang B, Korley V, Spears D, Ling A, Djuric A, Crystal E, Hruczkowski T, Roux JF, Carroll S, Essebag V, Krahn AD, Healey JS. Rationale and design of the randomized prospective ATLAS study: Avoid Transvenous Leads in Appropriate Subjects. Am Heart J. 2019 Jan;207:1-9. doi: 10.1016/j.ahj.2018.09.008. Epub 2018 Oct 9.

    PMID: 30399474BACKGROUND
  • Carroll SL, Mondesert B, Krahn AD, Bashir JG, Fisher K, Nair K, Healey JS. Device-specific quality of life: results from the ATLAS trial-avoid transvenous leads in appropriate subjects. Eur J Cardiovasc Nurs. 2024 Dec 16;23(8):877-885. doi: 10.1093/eurjcn/zvae067.

  • Healey JS, Krahn AD, Bashir J, Amit G, Philippon F, McIntyre WF, Tsang B, Joza J, Exner DV, Birnie DH, Sadek M, Leong DP, Sikkel M, Korley V, Sapp JL, Roux JF, Lee SF, Wong G, Djuric A, Spears D, Carroll S, Crystal E, Hruczkowski T, Connolly SJ, Mondesert B; ATLAS Investigators. Perioperative Safety and Early Patient and Device Outcomes Among Subcutaneous Versus Transvenous Implantable Cardioverter Defibrillator Implantations : A Randomized, Multicenter Trial. Ann Intern Med. 2022 Dec;175(12):1658-1665. doi: 10.7326/M22-1566. Epub 2022 Nov 8.

MeSH Terms

Interventions

Defibrillators, Implantable

Intervention Hierarchy (Ancestors)

DefibrillatorsElectrodesElectrical Equipment and SuppliesEquipment and SuppliesElectrodes, ImplantedProstheses and Implants

Study Officials

  • Jeff Healey, MD

    Population Health Research Institute

    PRINCIPAL INVESTIGATOR
  • Blandine Mondesert, MD

    Université de Montréal

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 2, 2016

First Posted

August 26, 2016

Study Start

February 22, 2017

Primary Completion

January 31, 2022

Study Completion

February 10, 2022

Last Updated

May 31, 2022

Record last verified: 2022-05

Data Sharing

IPD Sharing
Will not share

Locations