TachyarrhythmiasNCT00982397
Safety and Clinical Performance of the Protecta ICD and CRT-D
A study testing Protecta VR-ICD and Protecta DR-ICD or CRT-D in people with Tachyarrhythmias and Heart Failure, run by Medtronic Cardiac Rhythm and Heart Failure at 122 sites in 21 countries.
Trial summary
The purpose of the study is two-fold. In Phase I (Protecta Clinical Study), system performance will be evaluated. In Phase II (PainFree SST), the inappropriate shock-free rate at one year of subjects implanted with a Medtronic Protecta implantable cardioverter defibrillator (ICD) and cardiac resynchronization therapy… Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Tachyarrhythmias, Heart Failure, Ventricular Dysfunction
- What is being tested?
- Protecta VR-ICD and Protecta DR-ICD or CRT-D
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 2,770 participants
- Where
- 122 sitesin 21 countries
- Study dates
- Sep 2009to Sep 2013
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Patients meeting one of the following criteria can be included in Phase I of the study:
- Patients indicated (per local indications) for a dual chamber implantable cardioverter defibrillator (DR-ICD)/cardiac resynchronization therapy defibrillator (CRT-D)
- Patients undergoing a device replacement or upgrade to DR-ICD or CRT-D and with the protocol required leads (patients must be enrolled prior to implant)
- Patients meeting one of the following criteria can be included in Phase II of the study:
- Patients indicated for a DR-ICD/VR-ICD/CRT-D device and intended to receive a Protecta device
- Patients undergoing a DR-ICD/VR-ICD/CRT-D device replacement or an upgrade to a Protecta DR-ICD/VR-ICD or CRT-D
- Patients indicated for a DR-ICD/VR-ICD/CRT-D already implanted with a Protecta device and the protocol required leads, who have not yet been discharged after implant
Who cannot join
- Patients with a mechanical tricuspid heart valve
- Patients enrolled or intended to participate in any concurrent drug and/or device study, which would confound the results of this trial as determined by Medtronic, during the course of this clinical study
- Patients with medical conditions that preclude the testing required for all patients by the study protocol or that otherwise limit study participation required for all patients
- Patients with exclusion criteria required by local law (e.g. age, pregnancy, breast feeding, etc)
- Patients anticipated not being able to complete the study
- Patients unwilling to provide written informed consent
Trial locations and contacts
122 sites in 21 countries.
122 sites in 21 countries
United States29 sites
Birmingham Heart Clinic PC
Birmingham, Alabama, 35235
Ohio Heart and Vascular
Cincinnati, Ohio, 45219
Central Bucks Cardiology
Doylestown, Pennsylvania, 18901
Essentia Institute of Rural Health
Duluth, Minnesota, 55805
Pee Dee Cardiology
Florence, South Carolina, 29506
Mercy Hospital Fort Smith
Fort Smith, Arkansas, 72903
Hartford Hospital
Hartford, Connecticut, 06102
Hall-Garcia Cardiology Associates
Houston, Texas, 77030
Indiana Heart Physicians
Indianapolis, Indiana, 46237
University of Florida Health at Jacksonville
Jacksonville, Florida, 32209
LA Cardiology Associates
Los Angeles, California, 90017
CardioVasular Associates of Mesa
Mesa, Arizona, 85206
Arrhythmia Syncope Consultants LLC
Miami, Florida, 33133
Columbia St. Mary's Hospital
Milwaukee, Wisconsin, 53211
Cardiovascular Research of Northwest Indiana
Munster, Indiana, 46321
Cardiology Consultants of Napa Valley
Napa, California, 94558
Centennial Heart Cardiovascular Consultants LLC
Nashville, Tennessee, 37203
University of Pennsylvania
Philadelphia, Pennsylvania, 19104
Pinehurst Medical Clinic
Pinehurst, North Carolina, 28374
Virginia Commonwealth University Health System
Richmond, Virginia, 23298
CentraCare Heart & Vascular Center
Saint Cloud, Minnesota, 56303
Delmarva Heart Research Foundation
Salisbury, Maryland, 21804
Cardiology Consultants PA
Spartanburg, South Carolina, 29303
Spokane Cardiology
Spokane, Washington, 99204
Saint John's Medical Research Inc
Springfield, Missouri, 65804
Saint Louis Heart & Vascular PC
St Louis, Missouri, 62040
Cardiology PC
Syracuse, New York, 13210
St. Vincent Mercy Medical Center
Toledo, Ohio, 43608
Iowa Heart Center
West Des Moines, Iowa, 50314
Germany20 sites
Herz- und Gefässzentrum Bad Bevensen
Bad Bevensen
Herz- und Diabeteszentrum NRW - Ruhr-Universität Bochum
Bad Oeynhausen
Segeberger Kliniken GmbH
Bad Segeberg
Berufsgenossenschaftliche Universitätsklinik Bergmannsheil GmbH
Bochum
Universitätsklinikum Bonn
Bonn
MVZ am Küchwald GmbH ambulantes Herz Zentrum Chemnitz
Chemnitz
Klinikum Coburg GmbH
Coburg
Kardiocentrum Frankfurt an der Klinik Rotes Kreuz
Frankfurt
Universitätsmedizin Göttingen Georg-August-Universität
Göttingen
Ruprecht-Karls-Universität
Heidelberg
Westpfalz-Klinikum GmbH - Standort I Kaiserslautern
Kaiserslautern
Herz Zentrum Bodensee
Konstanz
Klinikum Ludwigsburg - Akademisches Lehrkrankenhaus der Universität Heidelberg
Ludwigsburg
Universitätsmedizin der Johannes Gutenberg-Universität Mainz
Mainz
Städtische Kliniken München GmbH - Klinikum Bogenhausen
München
Städtische Kliniken Neuss Lukaskrankenhaus GmbH-Akad.Lehrkrankenhaus d. Heinrich-Heine-Universität
Neuss
Universitätsmedizin Rostock
Rostock
Herz- und Kreislaufzentrum Rotenburg a.d. Fulda GmbH
Rotenburg A.d. Fulda
Asklepios Kliniken Schwalm - Eder GmbH - Klinikum Schwalmstadt
Schwalmstadt
Heinrich-Braun-Klinikum Zwickau gemeinnützige GmbH
Zwickau
Japan14 sites
Akita Medical Center
Akita
Kansai Rosai Hospital
Amagasak, Hyōgo
Chiba University Hospital
Chiba
Sapporo Medical Center NTT EC
Chūōku, Sapporo
Hirosaki University School of Medicine & Hospital
Hirosaki, Aomori
St. Marianna University School of Medicine Hospital
Kawasaki, Kanagawa
Kokura Memorial Hospital
Kitakyushu
Kobe University Hospital
Kobe, Hyōgo
Kumamoto University Hospital
Kumamoto
Kyoto University Hospital
Kyoto
Niigata University Medical & Dental Hospital
Niigata
Kinki University Hospital
Osakasaya, Osaka
Kitasato University Hospital
Sagamihara
National Cerebral and Cardiovasuclar Center
Suita, Osaka
Canada10 sites
Institut Universitaire de Cardiologieet de Pneumologie de Québec (IUCPQ)
Halifax, Nova Scotia
Queen Elizabeth II Health Sciences Centre
Halifax
Kelowna Arrhythmia Research
Kelowna
Queen's University & Kingston General Hospital
Kingston
London Health Sciences Centre - University Campus
London
Montreal Heart Institute
Montreal
Newmarket Electrophysiology Research Group
Newmarket, Ontario
University of Ottawa Heart Institute
Ottawa
Saint Paul's Hospital (Vancouver BC)
Vancouver, British Columbia
Royal Jubilee Hospital
Victoria, British Columbia
Israel9 sites
Barzilai Medical Center Ashkelon
Ashkelon
Soroka University Medical Center
Be'er Sheba
Carmel Medical Center
Haifa
Rambam Health Care Campus
Haifa
Shaare Zedek Medical Center
Jerusalem
Rabin Medical Center - Beilinson Hospital
Petah Tikva
Chaim Sheba Medical Center
Ramat Gan
Kaplan Medical Center
Rehovot
Tel Aviv Sourasky Medical Center
Tel Aviv
Netherlands9 sites
Medisch Centrum Alkmaar
Alkmaar
Academisch Medisch Centrum (AMC)
Amsterdam
Amphia Ziekenhuis - Locatie Molengracht Breda
Breda
Catharina Ziekenhuis
Eindhoven
Medisch Spectrum Twente
Enschede
Medisch Centrum Leeuwarden
Leeuwarden
Leids Universitair Medisch Centrum
Leiden
St. Antonius Ziekenhuis
Nieuwegein
Universitair Medisch Centrum Utrecht
Utrecht
Spain4 sites
Hospital De Cruces
Barakaldo
Hospital Universitario 12 de Octubre
Madrid
Hospital Universitario Puerta de Hierro Majadahonda
Majadahonda
Complejo Hospitalario Universitario de Vigo (CHUVI) - Hospital del Meixoeiro
Vigo
United Kingdom4 sites
Royal Bournemouth Hospital
Bournemouth
Liverpool Heart and Chest Hospital NHS Foundation Trust
Liverpool
King's College Hospital NHS Foundation Trust
London
Southampton General Hospital - University Hospital Southampton NHS Foundation Trust
Southampton
Austria3 sites
LKH - Universitätsklinikum Graz
Graz
Landesklinikum St. Pölten
Sankt Pölten
Klinikum Wels-Grieskirchen GmbH
Wels
Colombia3 sites
Fundacion Cardioinfantil
Bogotá
Hospital Cardiovascular del Nino
Bogotá
Clinica Cardiovascular Santa Maria
Medellín
Sweden3 sites
Universitetssjukhuset i Lund
Lund
Universitetssjukhuset Örebro
Örebro
Capio S:t Görans Sjukhus
Stockholm
Denmark2 sites
Aalborg Sygehus
Aalborg
Aarhus Universitetshospital - Skejby
Aarhus
India2 sites
Care Institute of Medical Sciences
Ahmedabad
Medanta-The Medicity
Gūrgaon
Italy2 sites
Ospedale classificato ed equiparato Sacro Cuore - Don Calabria
Negrar
Azienda Complesso Ospedaliero San Filippo Neri - Ospedale San Filippo Neri
Rome
Saudi Arabia2 sites
King Faisal Specialist Hospital & Research Center
Riyadh
Prince Salman Heart Centre - King Fahad Medical City
Riyadh
Malaysia1 site
Institut Jantung Negara - National Heart Institute
Kuala Lumpur
United Arab Emirates1 site
Sheikh Khalifa Medical Center
Abu Dhabi
About this study
Official title: The PainFree SST Clinical Study: Clinical Study to Evaluate System Safety and Clinical Performance of the Protecta ICD + CRT-D and to Assess the Capacity of the Protecta Features to Reduce Inappropriate Shocks.
The purpose of the study is two-fold. In Phase I (Protecta Clinical Study), system performance will be evaluated. In Phase II (PainFree SST), the inappropriate shock-free rate at one year of subjects implanted with a Medtronic Protecta implantable cardioverter defibrillator (ICD) and cardiac resynchronization therapy defibrillator (CRT-D) will be evaluated.
Read the detailed description
The PainFree SST study was a prospective, multicenter clinical trial, which was conducted in two consecutive phases. Phase I assessed safety as determined by assessment of delays in ventricular fibrillation (VF) arrhythmia detection time using new algorithms. Phase II assessed the influence of new algorithms on inappropriate and unnecessary shocks at 1 year of follow-up. Subjects enrolled in Phase I continued in Phase II of the study and data from all enrolled subjects contributed to the analysis of Phase II objectives. A sub-study of Phase II randomized secondary prevention subjects to either 18/24 NID or 30/40 NID in order to assess the safety of prolonged detection in these patients.
- Conditions
- Tachyarrhythmias, Heart Failure, Ventricular Dysfunction
- Being tested
- Protecta VR-ICD, Protecta DR-ICD or CRT-D
- Medical subject headings
- Tachycardia, Heart Failure, Ventricular Dysfunction
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Protecta VR-ICDDevice
Protecta single-chamber implantable cardioverter defibrillators.
Protecta DR-ICD or CRT-DDevice
Protecta dual-chamber implantable cardioverter defibrillators and cardiac resynchronization therapy defibrillators.
| Study group | Role | What they receive |
|---|---|---|
| Single-chamber detetction | Experimental | Patients implanted with a Protecta VR-ICD. Receives: Device: Protecta VR-ICD |
| Dual-chamber detection | Experimental | Patients implanted with a Protecta DR-ICD or CRT-D. Receives: Device: Protecta DR-ICD or CRT-D |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of Subjects Who Are Inappropriate Shock Free
Primary objective of Phase II. Subjects implanted with a VR device will be analyzed separately from subjects implanted with a DR / CRT-D device. An inappropriate shock is a shock delivered by the defibrillator when the patient's heart rhythm was not a tachyarrhythmia, as adjudicated by the independent Episode Review Committee .
Measured: Implant to one year post-implant
Percentage of Subjects With Unanticipated Severe Adverse Device Effects (Phase I)
In Phase I, only DR-ICD/CRT-D devices were implanted, so that for Phase I objectives there is only 1 arm to report results for.
Measured: Implant to one month post-implant
Percentage of Phase I Subjects Where the Ventricular Fibrillation (VF) Detection Time With Protecta Features on is no More Than 2 Seconds Longer Than the VF Detection Time With Protecta Features Off
In Phase I, only DR-ICD/CRT-D devices were implanted, so that for Phase I objectives there is only 1 arm to report results for.
Measured: At implant
Secondary outcomes (1)
Percentage of Secondary Prevention Subjects Who Are Syncopal Event Free
Measured: Implant to one year post-implant
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Sep 2009 (estimated)
- Study startSep 2009
- Primary completionSep 2013
- Study completionSep 2013
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (6)Papers the sponsor has linked to this study.
- Other trials for TachyarrhythmiasStudies of the same condition, open and under way.
- More trials run by Medtronic Cardiac Rhythm and Heart FailureThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 2,770 participants (actual)
Sponsor and investigators
- Lead sponsor
- Medtronic Cardiac Rhythm and Heart Failure
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- A. Meijer, Dr., Principal investigator, Eindhoven, The NetherlandsA. Auricchio, Prof., Principal investigator, Lugano, SwitzerlandT. Kurita, Dr., Principal investigator, Higashi-Osaka, JapanE.J. Schloss, Dr., Principal investigator, Cincinnati Ohio, USAL. Sterns, Dr., Principal investigator, Victoria, British Columbia, Canada
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00982397
- Sponsor's protocol ID
- PainFree SST
- Status last verified
- Oct 2017
- First submitted
- 22 Sep 2009
- Last updated
- 6 Nov 2017
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- Individual data sharing
- No
Publications
Auricchio A, Meijer A, Kurita T, Schloss E, Brinkman K, Claessens-van Ooijen M, Sterns L. Safety, efficacy, and performance of new discrimination algorithms to reduce inappropriate and unnecessary shocks: the PainFree SST clinical study design. Europace. 2011 Oct;13(10):1484-93. doi: 10.1093/europace/eur133. Epub 2011 Jun 13.
PubMed 21669960Auricchio A, Schloss EJ, Kurita T, Meijer A, Gerritse B, Zweibel S, AlSmadi FM, Leng CT, Sterns LD; PainFree SST Investigators. Low inappropriate shock rates in patients with single- and dual/triple-chamber implantable cardioverter-defibrillators using a novel suite of detection algorithms: PainFree SST trial primary results. Heart Rhythm. 2015 May;12(5):926-36. doi: 10.1016/j.hrthm.2015.01.017. Epub 2015 Jan 28.
PubMed 25637563Sterns LD, Meine M, Kurita T, Meijer A, Auricchio A, Ando K, Leng CT, Okumura K, Sapp JL, Brown ML, Lexcen DR, Gerritse B, Schloss EJ. Extended detection time to reduce shocks is safe in secondary prevention patients: The secondary prevention substudy of PainFree SST. Heart Rhythm. 2016 Jul;13(7):1489-96. doi: 10.1016/j.hrthm.2016.03.022. Epub 2016 Mar 14.
PubMed 26988379Wollmann CG, Lawo T, Kuhlkamp V, Becker R, Garutti C, Jackson T, Brown ML, Mayr H. Implantable defibrillators with enhanced detection algorithms: detection performance and safety results from the PainFree SST study. Pacing Clin Electrophysiol. 2014 Sep;37(9):1198-209. doi: 10.1111/pace.12390. Epub 2014 Mar 25.
PubMed 24665992Zweibel S, Cronin EM, Schloss EJ, Auricchio A, Kurita T, Sterns LD, Gerritse B, Lexcen DR, Cheng A. Estimating the incidence of atrial fibrillation in single-chamber implantable cardioverter defibrillator patients. Pacing Clin Electrophysiol. 2019 Feb;42(2):132-138. doi: 10.1111/pace.13555. Epub 2018 Dec 13.
PubMed 30478983Kurita T, Ando K, Ueda M, Shizuta S, Okamura H, Matsumoto N, Gerritse B, Fagan DH, Schloss EJ, Meijer A, Auricchio A, Sterns LD, Okumura K; PainFree SST investigators. Comparison of ICD shock rates in Japanese and non-Japanese patients in the PainFree SST study. Pacing Clin Electrophysiol. 2018 Sep;41(9):1185-1191. doi: 10.1111/pace.13427. Epub 2018 Aug 13.
PubMed 29928759
Study at a glance
From the registry record, last updated by the sponsor on 6 Nov 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The PainFree SST Clinical Study: Clinical Study to Evaluate System Safety and Clinical Performance of the Protecta ICD + CRT-D and to Assess the Capacity of the Protecta Features to Reduce Inappropriate Shocks.
- ClinicalTrials.gov ID
- NCT00982397
- Acronym / sponsor ID
- PainFree SST
- Conditions
- Tachyarrhythmias, Heart Failure, Ventricular Dysfunction
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 2,770 participants (actual)
- Lead sponsor
- Medtronic Cardiac Rhythm and Heart FailureIndustry (pharma, biotech, devices)
- Study start
- Sep 2009
- Primary completion
- Sep 2013 (actual)
- Study completion
- Sep 2013 (actual)
- First posted
- 23 Sep 2009 (estimated)
- Results
- Posted 6 Nov 2017
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of the study is two-fold. In Phase I (Protecta Clinical Study), system performance will be evaluated. In Phase II (PainFree SST), the inappropriate shock-free rate at one year of subjects implanted with a Medtronic Protecta implantable cardioverter defibrillator (ICD) and cardiac resynchronization therapy defibrillator (CRT-D) will be evaluated.
Detailed description
The PainFree SST study was a prospective, multicenter clinical trial, which was conducted in two consecutive phases. Phase I assessed safety as determined by assessment of delays in ventricular fibrillation (VF) arrhythmia detection time using new algorithms. Phase II assessed the influence of new algorithms on inappropriate and unnecessary shocks at 1 year of follow-up. Subjects enrolled in Phase I continued in Phase II of the study and data from all enrolled subjects contributed to the analysis of Phase II objectives. A sub-study of Phase II randomized secondary prevention subjects to either 18/24 NID or 30/40 NID in order to assess the safety of prolonged detection in these patients.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Single-chamber detetction | Experimental | Device: Protecta VR-ICDPatients implanted with a Protecta VR-ICD. |
| Dual-chamber detection | Experimental | Device: Protecta DR-ICD or CRT-DPatients implanted with a Protecta DR-ICD or CRT-D. |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (7 listed)
- Patients meeting one of the following criteria can be included in Phase I of the study:
- Patients meeting one of the following criteria can be included in Phase II of the study:
Key exclusion criteria (6 listed)
- Patients with a mechanical tricuspid heart valve
- Patients enrolled or intended to participate in any concurrent drug and/or device study, which would confound the results of this trial as determined by Medtronic, during the course of this clinical study
- Patients with medical conditions that preclude the testing required for all patients by the study protocol or that otherwise limit study participation required for all patients
- Patients with exclusion criteria required by local law (e.g. age, pregnancy, breast feeding, etc)
- Patients anticipated not being able to complete the study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Protecta VR-ICDProtecta single-chamber implantable cardioverter defibrillators. | Device | Single-chamber detetction |
| Protecta DR-ICD or CRT-DProtecta dual-chamber implantable cardioverter defibrillators and cardiac resynchronization therapy defibrillators. | Device | Dual-chamber detection |
Primary outcome
Percentage of Subjects Who Are Inappropriate Shock Free
Time frame: Implant to one year post-implant
Primary objective of Phase II. Subjects implanted with a VR device will be analyzed separately from subjects implanted with a DR / CRT-D device. An inappropriate shock is a shock delivered by the defibrillator when the patient's heart rhythm was not a tachyarrhythmia, as adjudicated by the independent Episode Review Committee .
Percentage of Subjects With Unanticipated Severe Adverse Device Effects (Phase I)
Time frame: Implant to one month post-implant
In Phase I, only DR-ICD/CRT-D devices were implanted, so that for Phase I objectives there is only 1 arm to report results for.
Percentage of Phase I Subjects Where the Ventricular Fibrillation (VF) Detection Time With Protecta Features on is no More Than 2 Seconds Longer Than the VF Detection Time With Protecta Features Off
Time frame: At implant
In Phase I, only DR-ICD/CRT-D devices were implanted, so that for Phase I objectives there is only 1 arm to report results for.
1 secondary outcome
Percentage of Secondary Prevention Subjects Who Are Syncopal Event Free
Time frame: Implant to one year post-implant
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Nov 2017.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 21669960Auricchio A, Meijer A, Kurita T, Schloss E, Brinkman K, Claessens-van Ooijen M, Sterns L. Safety, efficacy, and performance of new discrimination algorithms to reduce inappropriate and unnecessary shocks: the PainFree SST clinical study design. Europace. 2011 Oct;13(10):1484-93. doi: 10.1093/europace/eur133. Epub 2011 Jun 13.
- Results publication: PubMed 25637563Auricchio A, Schloss EJ, Kurita T, Meijer A, Gerritse B, Zweibel S, AlSmadi FM, Leng CT, Sterns LD; PainFree SST Investigators. Low inappropriate shock rates in patients with single- and dual/triple-chamber implantable cardioverter-defibrillators using a novel suite of detection algorithms: PainFree SST trial primary results. Heart Rhythm. 2015 May;12(5):926-36. doi: 10.1016/j.hrthm.2015.01.017. Epub 2015 Jan 28.
- Results publication: PubMed 26988379Sterns LD, Meine M, Kurita T, Meijer A, Auricchio A, Ando K, Leng CT, Okumura K, Sapp JL, Brown ML, Lexcen DR, Gerritse B, Schloss EJ. Extended detection time to reduce shocks is safe in secondary prevention patients: The secondary prevention substudy of PainFree SST. Heart Rhythm. 2016 Jul;13(7):1489-96. doi: 10.1016/j.hrthm.2016.03.022. Epub 2016 Mar 14.
- Results publication: PubMed 24665992Wollmann CG, Lawo T, Kuhlkamp V, Becker R, Garutti C, Jackson T, Brown ML, Mayr H. Implantable defibrillators with enhanced detection algorithms: detection performance and safety results from the PainFree SST study. Pacing Clin Electrophysiol. 2014 Sep;37(9):1198-209. doi: 10.1111/pace.12390. Epub 2014 Mar 25.
- Derived from this study: PubMed 30478983Zweibel S, Cronin EM, Schloss EJ, Auricchio A, Kurita T, Sterns LD, Gerritse B, Lexcen DR, Cheng A. Estimating the incidence of atrial fibrillation in single-chamber implantable cardioverter defibrillator patients. Pacing Clin Electrophysiol. 2019 Feb;42(2):132-138. doi: 10.1111/pace.13555. Epub 2018 Dec 13.
- Derived from this study: PubMed 29928759Kurita T, Ando K, Ueda M, Shizuta S, Okamura H, Matsumoto N, Gerritse B, Fagan DH, Schloss EJ, Meijer A, Auricchio A, Sterns LD, Okumura K; PainFree SST investigators. Comparison of ICD shock rates in Japanese and non-Japanese patients in the PainFree SST study. Pacing Clin Electrophysiol. 2018 Sep;41(9):1185-1191. doi: 10.1111/pace.13427. Epub 2018 Aug 13.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
A. Meijer, Dr. principal investigator
Eindhoven, The Netherlands
A. Auricchio, Prof. principal investigator
Lugano, Switzerland
T. Kurita, Dr. principal investigator
Higashi-Osaka, Japan
122 sites in 21 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Protecta VR-ICD and Protecta DR-ICD or CRT-D in people with Tachyarrhythmias and Heart Failure, run by Medtronic Cardiac Rhythm and Heart Failure at 122 sites in 21 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 6 Nov 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 122 sites in United States, Germany, Japan, Canada, Israel and 16 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Yes. Results are posted in the registry (first posted 6 Nov 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percentage of Subjects Who Are Inappropriate Shock Free (time frame: Implant to one year post-implant). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00982397, which also lists 6 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Nov 2017.