NCT01085435

Brief Summary

The EFFORTLESS ICD Registry is an observational, standard of care evaluation designed to demonstrate the early, mid and long-term clinical effectiveness the Boston Scientific S-ICD System. In addition, analysis of resource utilization and costs will be performed to document treatment costs for periods defined by Registry endpoints. Protocol 90904928 restricts enrolment to patients over 18 years of age while protocol 90904925 allows all patients to be included.

Trial Health

98
On Track

Trial Health Score

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

Enrollment
994

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Feb 2011

Longer than P75 for all trials

Geographic Reach
10 countries

44 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

March 10, 2010

Completed
1 day until next milestone

First Posted

Study publicly available on registry

March 11, 2010

Completed
11 months until next milestone

Study Start

First participant enrolled

February 2, 2011

Completed
9.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 29, 2020

Completed
3.7 years until next milestone

Results Posted

Study results publicly available

November 7, 2023

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2024

Completed
Last Updated

May 20, 2025

Status Verified

November 1, 2024

Enrollment Period

9.1 years

First QC Date

March 10, 2010

Results QC Date

April 14, 2022

Last Update Submit

April 30, 2025

Conditions

Keywords

ICDdefibrillator

Outcome Measures

Primary Outcomes (3)

  • Perioperative S-ICD Complication Free Rate

    The number of subjects without Type I Complications within 30 Days of Implant divided by the Total Implanted Subjects.

    30 days post implant

  • 360 Day S-ICD Complication Free Rate

    The Kaplan-Meier (KM) Survival Estimate of 360-Day Type I Complications.

    Minimum 360 days post implant

  • Percentage of Inappropriate Shocks for Atrial Fibrillation (AF)/Supraventricular Tachycardia (SVT)

    The number of subjects who received at least one inappropriate shock for SVT above the discrimination zone and SVT discriminator errors divided by the total implanted subjects.

    From enrollment to 5-year annual visit.

Other Outcomes (17)

  • Extension Phase Rate of Long-term S-ICD System-related Adverse Events

    From enrollment in the Extension Phase up to 5 years until the 5th annual follow-up of the substudy, usually up to 60 months +/- 90 days.

  • Extension Phase S-ICD Replacements for Functionality

    From enrollment into the Extension Phase up to 5 years until the 5th annual follow-up of the substudy, usually up to 60 months +/- 90 days.

  • Extension Phase Device Longevity

    From enrollment in the Extension Phase up to 5 years until the 5th annual follow-up of the substudy, usually up to 60 months +/- 90 days.

  • +14 more other outcomes

Study Arms (2)

EFFORTLESS Main Study

Patients implanted with a CE marked S-ICD System, not participating in Cameron Health's Investigational Device Exemption (IDE) Clinical Study.

Device: S-ICD System

Extension Phase Sub Study

The Sub-Study patients were preferably recruited from the active EFFORTLESS S-ICD patient population. Patients, who had already completed the EFFORTLESS S-ICD Registry in the past, were considered secondarily for participation in the Sub-Study.

Device: S-ICD System

Interventions

The S-ICD System is an implantable technology that uses a subcutaneous pulse generator and subcutaneous electrode system to treat ventricular tachyarrhythmias. The S-ICD System consists of the pulse generator, subcutaneous electrode, the programmer and electrode insertion tool.

Also known as: S-ICD Pulse Generator, S-ICD Subcutaneous Electrode, S-ICD Electrode Insertion Tool, S-ICD Programmer
EFFORTLESS Main StudyExtension Phase Sub Study

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Post CE mark ICD patients eligible for implantation of the S-ICD system

You may qualify if:

  • Age \>/= 18yrs
  • Eligible for implantation of an S-ICD system per local clinical guidelines or currently implanted with an S-ICD system (Software (SW) version 1.59.0 or later)
  • Willing and able to provide written informed consent or have informed consent as provided by a legal representative

You may not qualify if:

  • Participation in any other investigational study that may interfere with interpretation of the Registry results
  • Incessant ventricular tachycardia and/or spontaneous, frequently recurring ventricular tachycardia that is reliably terminated with anti-tachycardia pacing
  • Patients with unipolar pacemakers or implanted devices that revert to unipolar pacing
  • Extension Phase Sub-study:
  • Subjects who are actively enrolled in the EFFORTLESS S-ICD Registry OR Subjects who completed the 5-year follow-up in the EFFORTLESS S-ICD Registry. All clinical events, spontaneous and induced episode data and system replacement or revision data since the last EFFORTLESS S-ICD Annual Follow-Up of the main study must be available in medical files or equivalent.
  • Subjects who are actively implanted with an S-ICD pulse generator (SQ-RX, EMBLEM or EMBLEM MRI) and an S-ICD electrode (Q-TRAK or EMBLEM) or any other future commercial available versions
  • Willing and able to provide written informed consent or have informed consent as provided by a legal representative and willing to participate in all testing and follow-ups as described the Sub-Study protocol
  • Age 18 or above, and of legal age to give informed consent specific to national laws
  • Subjects with device replacement from the S-ICD to a transvenous ICD
  • Subjects with unipolar pacemakers or implanted devices that revert to unipolar pacing
  • Subjects that are participating in any other investigational study that may interfere with interpretation of the Registry results, without the written approval of Boston Scientific

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (44)

Na Homolce Hospital

Prague, Prague 5, 15030, Czechia

Location

Rigshospitalet

Copenhagen, København, 2100, Denmark

Location

Aalborg University Hospital

Aalborg, Denmark

Location

Aarhus University Hospital

Aarhus, Denmark

Location

Odense University Hospital

Odense, 5000, Denmark

Location

CHU La Timone

Marseille, France

Location

Nouvelles Cliniques Nantaises

Nantes, France

Location

Hôpital Cardiologique du Haut-L'évêque

Pessac, France

Location

Universitäts-Herzzentrum Freiburg-Bad Krozingen

Bad Krozingen, Germany

Location

Immanuel Klinikum Bernau Herzzentrum Brandenburg

Bernau, Germany

Location

Klinikum Bielefeld

Bielefeld, Germany

Location

Medizinische Hochschule Hannover

Hanover, Germany

Location

University Hospital Schleswig-Holstein

Lübeck, Germany

Location

Universitätsmedizin Mannheim

Mannheim, Germany

Location

Ludwig-Maximilians-Universität München, Campus Großhadern

Munich, 81377, Germany

Location

Universitätsklinikum Münster

Münster, Germany

Location

Marienkrankenhaus Papenburg

Papenburg, Germany

Location

Arnas Garibaldi Nesima

Catania, Italy

Location

Ospedale Sacro Cuore Don Calabria

Negrar, Italy

Location

Azienda Ospedaliero Universitaria Padova

Padua, Italy

Location

Azienda Ospedaliero Universitaria Pisana

Pisa, Italy

Location

Policlinico Casilino

Rome, Italy

Location

Maastricht University Medical Center

Maastricht, AZ Maastricht, 6202, Netherlands

Location

Catharina Eindhoven Hospital

Eindhoven, EJ Eindhoven, 5623, Netherlands

Location

Amsterdam Medisch Centrum

Amsterdam, 1105 AZ, Netherlands

Location

Medisch Spectrum Twente

Enschede, 7513 ER, Netherlands

Location

University Medical Center Groningen

Groningen, 9713, Netherlands

Location

St Antonius Ziekenhuis

Nieuwegein, 3430 EM, Netherlands

Location

Erasmus Medical Center

Rotterdam, 3000 CA, Netherlands

Location

Auckland City Hospital

Auckland, 1142, New Zealand

Location

Hospital Santa Cruz

Carnaxide, Portugal

Location

Complexo Hospitalario Universitario

A Coruña, Spain

Location

Papworth Hospital

Cambridge, Cambridgeshire, CB23 3RE, United Kingdom

Location

Leeds General Infirmary

Leeds, Yorkshire, LS1 1YY, United Kingdom

Location

Royal Sussex County Hospital

Brighton, BN2 5BE, United Kingdom

Location

Bristol Royal Infirmary

Bristol, BS2 8HW, United Kingdom

Location

Russells Hall Hospital

Dudley, DY1 2HQ, United Kingdom

Location

Yorkhill Children's Hospital

Glasgow, G3 8SJ, United Kingdom

Location

Yorkshire Heart Centre

Leeds, United Kingdom

Location

St. Bartholomew's Hospital

London, W1G 8SE, United Kingdom

Location

Kings College Hospital

London, United Kingdom

Location

John Radcliffe Hospital

Oxford, OX3 9DU, United Kingdom

Location

Northern General Hospital

Sheffield, United Kingdom

Location

Southampton General

Southampton, United Kingdom

Location

Related Publications (3)

  • Boersma L, Barr C, Knops R, Theuns D, Eckardt L, Neuzil P, Scholten M, Hood M, Kuschyk J, Jones P, Duffy E, Husby M, Stein K, Lambiase PD; EFFORTLESS Investigator Group. Implant and Midterm Outcomes of the Subcutaneous Implantable Cardioverter-Defibrillator Registry: The EFFORTLESS Study. J Am Coll Cardiol. 2017 Aug 15;70(7):830-841. doi: 10.1016/j.jacc.2017.06.040.

  • Burke MC, Gold MR, Knight BP, Barr CS, Theuns DAMJ, Boersma LVA, Knops RE, Weiss R, Leon AR, Herre JM, Husby M, Stein KM, Lambiase PD. Safety and Efficacy of the Totally Subcutaneous Implantable Defibrillator: 2-Year Results From a Pooled Analysis of the IDE Study and EFFORTLESS Registry. J Am Coll Cardiol. 2015 Apr 28;65(16):1605-1615. doi: 10.1016/j.jacc.2015.02.047.

  • Lambiase PD, Barr C, Theuns DA, Knops R, Neuzil P, Johansen JB, Hood M, Pedersen S, Kaab S, Murgatroyd F, Reeve HL, Carter N, Boersma L; EFFORTLESS Investigators. Worldwide experience with a totally subcutaneous implantable defibrillator: early results from the EFFORTLESS S-ICD Registry. Eur Heart J. 2014 Jul 1;35(25):1657-65. doi: 10.1093/eurheartj/ehu112. Epub 2014 Mar 26.

MeSH Terms

Conditions

Tachycardia, Ventricular

Condition Hierarchy (Ancestors)

TachycardiaArrhythmias, CardiacHeart DiseasesCardiovascular DiseasesCardiac Conduction System DiseasePathologic ProcessesPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Jens Goetzke
Organization
Boston Scientific

Study Officials

  • Pier Lambiase, Prof.

    St. Bartholomew's Hospital, London

    STUDY CHAIR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 10, 2010

First Posted

March 11, 2010

Study Start

February 2, 2011

Primary Completion

February 29, 2020

Study Completion

January 1, 2024

Last Updated

May 20, 2025

Results First Posted

November 7, 2023

Record last verified: 2024-11

Locations