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Magnetic Resonance ImagingENABLE-MRINCT02652481

ENABLE MRI (Magnetic Resonance Imaging)

A study testing ImageReady MR Conditional Defibrillation System in people with Magnetic Resonance Imaging, run by Boston Scientific Corporation at 57 sites in 9 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The objective of this study is to collect data to confirm the safety and effectiveness of the Image Ready™ MR (Magnetic Resonance) Conditional Defibrillation System when used in the 1.5T (Tesla) MRI environment under the labeled Conditions of Use (Phase I). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Magnetic Resonance Imaging
What is being tested?
ImageReady MR Conditional Defibrillation System
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
500 participants
Where
57 sitesin 9 countries
Study dates
Jan 2016to 4 May 2018
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Phase I: Subject is indicated per guidelines and will receive a CRT-D or ICD system OR Subject is implanted with a functional and stable CRT-D or ICD system Phase II: Subject is implanted with a functional and stable CRT-D or ICD system
  • Subject will receive or is implanted with an ICD or CRT-D pulse generator in the left or right pectoral region
  • Subject is able and willing to undergo an MR scan without intravenous sedation (Phase I only)
  • Subject is willing and capable of providing informed consent and participating in all testing/ visits associated with this clinical study at an approved clinical study center and at the intervals defined by this protocol
  • Subject is age 18 or above, or of legal age to give informed consent specific to state and national law

Who cannot join

  • Subject implanted with an ICD or CRT-D pulse generator with battery at Explant status
  • Subject has other active or abandoned implanted cardiac rhythm devices, components or accessories present such as pulse generators, leads, lead adaptors or extenders
  • Presence of metallic objects that represent a contraindication to MR imaging at the discretion of the Radiologist and impacting the ability to conduct the study protocol
  • Subject needs or will need a medically necessary MR scan, before completing the 1-month post-MR follow-up visit (Phase I only)
  • Subject with:
  • A history of syncope related to brady-arrhythmia
Show all 28Show fewer
  • A history of syncope of unknown etiology
  • Sinus pauses (Pause > 2 s)
  • Permanent or intermittent complete AV (Atrioventricular ) block
  • Documentation of progressive AV nodal block over time
  • Trifascicular block (alternating bundle branch block or PR > 200 ms (interval between P wave and R-wave) with LBBB ( Left bundle branch block) or other bifascicular block) Note: It is required to run a 12 lead ECG (Electrocardiography) and a 10s rhythm strip to document this exclusion criterion. During ECG acquisition, subjects must be in either their own intrinsic rhythm or, in subjects with an existing device implant, the device must be programmed to VVI (ventricular demand pacing) 40 ppm.
  • Subject is not clinically capable of tolerating the absence of pacing or Resynchronization therapy support in a supine position for the duration that the pulse generator is in MRI Protection Mode, per Physician discretion
  • Subject is not clinically capable of tolerating the absence of Tachycardia therapy support for the duration that the pulse generator is in MRI Protection Mode, per Physician discretion
  • Subjects with a planned RA( right atrium), RV ( right ventricle) or LV (left ventricle) lead revision or extraction within 30 days of enrollment (Phase I only)
  • Subjects with an implanted lead that is planned to be extracted during the study implant procedure
  • Subjects currently requiring dialysis
  • Subject has a mechanical heart valve
  • Subject has a known or suspected sensitivity to dexamethasone acetate (DXA)
  • Subject is currently on the active heart transplant list
  • Subject has documented life expectancy of less than 12 months
  • Subject is enrolled in a concurrent study, with the exception of local mandatory governmental registries and observational studies/registries, without the written approval from Boston Scientific
  • Women of childbearing potential who are or might be pregnant, and will receive an ICD or CRT-D pulse generator
  • VF Induction Sub-study Exclusion Criteria:
  • In addition to meeting all of the inclusion criteria and none of the exclusion criteria of the ENABLE MRI study, subjects enrolled in the VF Induction Sub-study must also not meet any of the following VF Induction Sub-study exclusion criteria:
  • Unstable heart failure requiring hospitalization in the last 30 calendar days
  • Unable to tolerate sedation (e.g. IV (intravenous sedation )sedation, general anesthesia)
  • Planned cardiac revascularization procedure
  • Right Ventricular Lead R wave is less than 5 mV(milliVolt)

Trial locations and contacts

57 sites in 9 countries.

57 sites in 9 countries

United States34 sites
  • Emory University Hospital

    Atlanta, Georgia

  • SouthEast Texas Clinical Research Center

    Beaumont, Texas

  • Manatee Memorial Hospital

    Bradenton, Florida

  • Bryn Mawr Medical Specialists

    Bryn Mawr, Pennsylvania

  • University of North Carolina Hospital

    Chapel Hill, North Carolina

  • OhioHealth Research and Innovation Institute - Riverside Methodist Hospital

    Columbus, Ohio

  • Providence Regional Medical Center Everett

    Everett, Washington

  • Heart Center Research, LLC

    Huntsville, Alabama

  • St. Vincent's Hospital

    Indianapolis, Indiana

  • University of Iowa Hospitals and Clinics

    Iowa City, Iowa

  • Cardiology Associates of Northeast Arkansas

    Jonesboro, Arkansas, 72653

  • Lakeland Regional Medical Center

    Lakeland, Florida

  • Marquette General Hospital

    Marquette, Michigan

  • St. Thomas Research Institute, LLC

    Nashville, Tennessee

  • Northwell Health

    New York, New York

  • Sentara Norfolk General Hospital

    Norfolk, Virginia

  • Huntington Memorial Hospital

    Pasadena, California

  • Thomas Jefferson University Hospital

    Philadelphia, Pennsylvania

  • Providence St. Vincent Medical Center

    Portland, Oregon

  • Rapid City Regional Hospital

    Rapid City, South Dakota

  • Virginia Commonwealth University Health System

    Richmond, Virginia

  • Centracare Heart and Vascular Center

    Saint Cloud, Minnesota

  • HealthEast St. Joseph's Hospital

    Saint Paul, Minnesota

  • University of Utah Hospital and Clinics

    Salt Lake City, Utah

  • University of California - San Diego-N

    San Diego, California

  • St. John's hospital

    Springfield, Illinois

  • Cox Health

    Springfield, Missouri

  • University Community Hospital

    Tampa, Florida

  • University of Texas Houston Health Science Center

    The Woodlands, Texas

  • The Toledo Hospital

    Toledo, Ohio

  • North Mississippi Medical Center

    Tupelo, Mississippi

  • Trinity Mother Frances Health System

    Tyler, Texas

  • PeaceHealth Southwest Medical

    Vancouver, Washington

  • John Muir Medical Center

    Walnut Creek, California

Other trials in United States

Italy7 sites
  • Fondazione di Ricerca e Cura 'Giovanni Paolo II'

    Campobasso

  • Azienda Ospedaliera Universitaria Federico II

    Naples

  • Azienda Ospedaliera San Camillo-Forlanini

    Roma

  • Ospedale S.G. Calibita Fatebenefratelli - Isola Tiberina

    Roma

  • Ospedale san giovanni calibita

    Roma

  • Policlinico Casilino

    Roma

  • Osp. S. Maria Della Misericordia

    Udine

Other trials in Italy

Israel4 sites
  • Rambam Medical Center

    Haifa

  • Soroka MC

    Petah Tikva

  • Tel Aviv Sourasky Medical Center

    Tel Aviv

  • Hadassah Hebrew University Medical Center

    Tel Litwinsky

Other trials in Israel

Germany3 sites
  • Deutsches Herzzentrum Berlin

    Berlin

  • Medizinische Hochschule Hannover MHH

    Hanover

  • Klinikum Magdeburg

    Magdeburg

Other trials in Germany

United Kingdom3 sites
  • Heart and Chest Hospital

    Liverpool

  • Guys and St. Thomas NHS Foundation Trust

    London

  • Freeman Hospital

    Newcastle

Other trials in United Kingdom

Hong Kong2 sites
  • Prince of Wales Hospital

    Hong Kong

  • Queen Mary Hospital

    Hong Kong

Other trials in Hong Kong

Malaysia2 sites
  • Institut Jantung Negara

    Kuala Lumpur

  • University of Malaya Medical Centre

    Kuala Lumpur

Other trials in Malaysia

Belgium1 site
  • Academisch Ziekenhuis Middelheim

    Antwerp

Other trials in Belgium

Spain1 site
  • Hospital Clinic de Barcelona

    Barcelona

Other trials in Spain

About this study

Official title: Expanding MRI (Magnetic Resonance Imaging) Access for Patients With New and Existing ICDs (Implantable Cardioverter Defibrillator) and CRT-Ds (Cardiac Resynchronization Therapy Defibrillator)

The objective of this study is to collect data to confirm the safety and effectiveness of the Image Ready™ MR (Magnetic Resonance) Conditional Defibrillation System when used in the 1.5T (Tesla) MRI environment under the labeled Conditions of Use (Phase I).

Additionally, the study will assess medically necessary MR scans according to the labeled Conditions of Use to provide real-world scanning data (Phase I and Phase II).The study also aims to demonstrate the continued ability of the ImageReady MR Conditional Defibrillation System to sense and detect ventricular fibrillation (VF) post MRI scan by collecting and analyzing data from spontaneous VF episodes, "for-cause" VF inductions, and from an optional VF induction Sub-study.

.

Being tested
ImageReady MR Conditional Defibrillation System

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ImageReady MR Conditional Defibrillation SystemDevice

    ImageReady MR Conditional Defibrillation System Components:

    Device Name Device Model Number Pulse Generators Phase I and II Phase II Only * CRT-D (IS1/DF4/IS4) VR ICD (DF4) DR ( dual chamber) ICD (IS1/DF4) ORIGEN™ MINI ICD ORIGEN EL ICD ORIGEN X4 CRT INOGEN™ MINI ICD INOGEN EL ICD INOGEN X4 CRT DYNAGEN™ MINI ICD DYNAGEN EL ICD DYNAGEN X4 CRT-D AUTOGEN ™ MINI ICD* AUTOGEN EL ICD* AUTOGEN X4 CRT-D* Right Atrial Leads and Accessories FINELINE™ II Sterox FINELINE II Sterox EZ Suture Sleeves for FINELINE II Leads INGEVITY™ MRI* Suture Sleeve for INGEVITY MRI* IS-1 Lead Port Plug 7145 Right Ventricular Leads and Accessories RELIANCE 4-FRONT™ (DF4)* Suture Sleeve for RELIANCE 4-FRONT leads*; ENDOTAK RELIANCE™ (DF4) Left Ventricular Leads and Accessories ACUITY™ X4 (IS4) Suture Sleeve for ACUITY X4 leads

    • May only be used internationally outside the US
Study groups in NCT02652481
Study groupRoleWhat they receive
ImageReady MR Conditional Defibrillation System GroupOtherProspective, non-randomized, confirmatory study.Subjects will initially be enrolled into Phase I to undergo a non-diagnostic study required MR Scan. Once Phase I is complete, subjects will be enrolled into Phase II where there is no requirement to undergo a non-diagnostic study required MR scan Up to 37 subjects will be used for an interim analysis. Of these subjects, the first 20 who undergo the study required MRI scan and complete the MRI + 1 Month Visit will be used for this analysis. The second cohort will consist of subjects who will receive the non-diagnostic study required MR scan until 137 CRT-D and 28 VR ( single chamber) ICD subjects undergo the study required MR scan (complete or incomplete). De novo implants and existing implants may be enrolled in Phase I There will be a non-diagnostic study required MR scan (during the MRI visit) There will be a study required MRI visit and MRI + 1 month visit
Receives: Device: ImageReady MR Conditional Defibrillation System

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants Free From MR (Magnetic Resonance) Scan-related Complications

    MR scan-related CFR (Complication-free rate) between the MR Scan and the MRI + 1 (Magnetic Resonance Imaging) Month Visit

    Measured: The time between the MR Scan and MRI + 1 Month

  2. Percentage of Participants That Had an Increase in Average Pacing Thresholds ≤ 0.5V (Volt) (at 0.5 ms) in the RV

    Increases in RV pacing threshold (at 0.5 ms) pre- MR scan and 1 Month post-MR scan were calculated for subjects. Subjects that had an increase in average pacing thresholds ≤ 0.5V (at 0.5 ms) from pre-MR Scan to MRI Visit + 1 Month follow-up were considered a success.

    Measured: The time between the MR Scan and MRI + 1 Month

  3. Percentage of Participants That Had an Increase in Average LV ( Left Ventricle) Pacing Threshold ≤ 1.0V (Volt) at 0.5 ms.

    Increases in average LV pacing threshold (at 0.5 ms) pre- MR scan and 1 Month post-MR scan were calculated for subjects. Subjects that had an increase in pacing thresholds measurements ≤ 1.0V (at 0.5 ms) from pre-MR Scan at MRI Visit to MRI + 1 Month Visit were considered a success.

    Measured: The time between the MR Scan and MRI + 1 Month

  4. Percentage of Participants That Had a Decrease in RV ( Right Ventricle) Sensed Amplitude

    Decreases in RV sensed amplitude pre-MR scan and 1 Month post-MR scan were calculated for subjects. Subjects were considered a success if the average sensed amplitude at the MRI + 1 Month Visit remains ≥ 5.0 mV and above 50% of the pre-MR scan value. Subjects who had an average pre-scan RV sensed amplitude measurement < 5.0 mV were excluded from this analysis.

    Measured: The time between the MR Scan and MRI + 1 Month

  5. Percentage of Participants That Decrease in LV ( Left Ventricle) Sensed Amplitude

    Decreases in average LV sensed amplitude pre-MR scan and 1 Month post-MR scan were calculated for subjects. Subjects were considered a success if the average sensed amplitude at the MRI + 1 Month Visit remained ≥ 5.0 mV and above 50% of the average pre-MR scan value. Subjects who had an average pre-scan LV sensed amplitude measurement < 5.0 mV were excluded from this analysis.

    Measured: The time between the MR Scan and MRI + 1 Month

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Jan 2016 (estimated)
  2. Study startJan 2016
  3. Primary completion30 Apr 2017
  4. Study completion4 May 2018

Resources

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
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
500 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02652481
Sponsor's protocol ID
C1734
Acronym
ENABLE-MRI
Status last verified
Jan 2021
First submitted
8 Jan 2016
Last updated
25 Jan 2021
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • Rinaldi CA, Vitoff PJ, Nair DG, Bernstein R, Mountantonakis SE, Rapacciuolo A, Carter N, Tse HF, Green UB. Safety of magnetic resonance imaging scanning in patients with cardiac resynchronization therapy-defibrillators incorporating quadripolar left ventricular leads. Heart Rhythm. 2020 Dec;17(12):2064-2071. doi: 10.1016/j.hrthm.2020.08.020. Epub 2020 Sep 7.

    PubMed 32911050

Questions about this trial

What is this clinical trial studying?

A study testing ImageReady MR Conditional Defibrillation System in people with Magnetic Resonance Imaging, run by Boston Scientific Corporation at 57 sites in 9 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 5 inclusion and 28 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 25 Jan 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 57 sites in United States, Italy, Israel, Germany, United Kingdom and 4 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 16 Jul 2019). 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 Participants Free From MR (Magnetic Resonance) Scan-related Complications (time frame: The time between the MR Scan and MRI + 1 Month). The study lists 5 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 NCT02652481, which also lists 1 linked publication.

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 25 Jan 2021.

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