Boston Scientific Post Market Subcutaneous-Implantable Cardioverter Defibrillator (S-ICD) Registry
EFFORTLESS
Evaluation oF Factors ImpacTing CLinical Outcome and Cost EffectiveneSS of the S-ICD (The EFFORTLESS S-ICD Registry)
1 other identifier
observational
994
10 countries
44
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Feb 2011
Longer than P75 for all trials
44 active sites
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
CompletedFirst Posted
Study publicly available on registry
March 11, 2010
CompletedStudy Start
First participant enrolled
February 2, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 29, 2020
CompletedResults Posted
Study results publicly available
November 7, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2024
CompletedMay 20, 2025
November 1, 2024
9.1 years
March 10, 2010
April 14, 2022
April 30, 2025
Conditions
Keywords
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.
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.
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.
Eligibility Criteria
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
Rigshospitalet
Copenhagen, København, 2100, Denmark
Aalborg University Hospital
Aalborg, Denmark
Aarhus University Hospital
Aarhus, Denmark
Odense University Hospital
Odense, 5000, Denmark
CHU La Timone
Marseille, France
Nouvelles Cliniques Nantaises
Nantes, France
Hôpital Cardiologique du Haut-L'évêque
Pessac, France
Universitäts-Herzzentrum Freiburg-Bad Krozingen
Bad Krozingen, Germany
Immanuel Klinikum Bernau Herzzentrum Brandenburg
Bernau, Germany
Klinikum Bielefeld
Bielefeld, Germany
Medizinische Hochschule Hannover
Hanover, Germany
University Hospital Schleswig-Holstein
Lübeck, Germany
Universitätsmedizin Mannheim
Mannheim, Germany
Ludwig-Maximilians-Universität München, Campus Großhadern
Munich, 81377, Germany
Universitätsklinikum Münster
Münster, Germany
Marienkrankenhaus Papenburg
Papenburg, Germany
Arnas Garibaldi Nesima
Catania, Italy
Ospedale Sacro Cuore Don Calabria
Negrar, Italy
Azienda Ospedaliero Universitaria Padova
Padua, Italy
Azienda Ospedaliero Universitaria Pisana
Pisa, Italy
Policlinico Casilino
Rome, Italy
Maastricht University Medical Center
Maastricht, AZ Maastricht, 6202, Netherlands
Catharina Eindhoven Hospital
Eindhoven, EJ Eindhoven, 5623, Netherlands
Amsterdam Medisch Centrum
Amsterdam, 1105 AZ, Netherlands
Medisch Spectrum Twente
Enschede, 7513 ER, Netherlands
University Medical Center Groningen
Groningen, 9713, Netherlands
St Antonius Ziekenhuis
Nieuwegein, 3430 EM, Netherlands
Erasmus Medical Center
Rotterdam, 3000 CA, Netherlands
Auckland City Hospital
Auckland, 1142, New Zealand
Hospital Santa Cruz
Carnaxide, Portugal
Complexo Hospitalario Universitario
A Coruña, Spain
Papworth Hospital
Cambridge, Cambridgeshire, CB23 3RE, United Kingdom
Leeds General Infirmary
Leeds, Yorkshire, LS1 1YY, United Kingdom
Royal Sussex County Hospital
Brighton, BN2 5BE, United Kingdom
Bristol Royal Infirmary
Bristol, BS2 8HW, United Kingdom
Russells Hall Hospital
Dudley, DY1 2HQ, United Kingdom
Yorkhill Children's Hospital
Glasgow, G3 8SJ, United Kingdom
Yorkshire Heart Centre
Leeds, United Kingdom
St. Bartholomew's Hospital
London, W1G 8SE, United Kingdom
Kings College Hospital
London, United Kingdom
John Radcliffe Hospital
Oxford, OX3 9DU, United Kingdom
Northern General Hospital
Sheffield, United Kingdom
Southampton General
Southampton, United Kingdom
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.
PMID: 28797351DERIVEDBurke 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.
PMID: 25908064DERIVEDLambiase 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.
PMID: 24670710DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Jens Goetzke
- Organization
- Boston Scientific
Study Officials
- STUDY CHAIR
Pier Lambiase, Prof.
St. Bartholomew's Hospital, London
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