NCT02041702

Brief Summary

The aim of this study was to assess safety and efficacy of SJM MRI conditional pacing system. The study hypothesized that cardiac MRI scan would not affect performance of SJM MRI conditional pacing system.

Trial Health

93
On Track

Trial Health Score

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

Enrollment
283

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jun 2014

Typical duration for not_applicable

Geographic Reach
5 countries

13 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

December 20, 2013

Completed
1 month until next milestone

First Posted

Study publicly available on registry

January 22, 2014

Completed
5 months until next milestone

Study Start

First participant enrolled

June 9, 2014

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 17, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 17, 2016

Completed
3.4 years until next milestone

Results Posted

Study results publicly available

August 21, 2019

Completed
Last Updated

August 21, 2019

Status Verified

August 1, 2019

Enrollment Period

1.8 years

First QC Date

December 20, 2013

Results QC Date

August 18, 2017

Last Update Submit

August 6, 2019

Conditions

Keywords

BradycardiaMRI Conditional PacemakerSt Jude MedicalAccent MRI PacemakerTendril MRI Lead

Outcome Measures

Primary Outcomes (5)

  • Freedom From MRI Scan-related Complications

    Number of subjects who were free from MRI scan-related complications

    MRI Visit ,1 Month Post MRI Visit

  • Change in Right Atrial (RA) Capture Threshold @0.5 Millisecond (ms) From Pre-MRI Scan to 1 Month After MRI Scan

    Number of subjects who experienced an increase in RA capture threshold @ 0.5 ms at 1-Month post MRI scan visit ≤ 0.5 Volt (V) compared to pre-MRI scan value collected at MRI scan visit

    MRI Visit ,1 Month Post MRI Visit

  • Change in Right Ventricular (RV) Capture Threshold @0.5ms From Pre-MRI Scan to 1 Month After MRI Scan

    Number of subjects who experienced an increase in RV capture threshold @ 0.5 ms at 1-Month post MRI scan visit ≤ 0.5 V compared to pre-MRI scan value collected at MRI scan visit

    MRI Visit, 1 Month Post MRI Visit

  • Change in RA Sensing Amplitude From Pre-MRI Scan to 1 Month After MRI Scan

    Number of subjects who experienced a decrease in RA sensing amplitude ≤ 50% and at least 1.5 mV at 1-Month post MRI scan visit compared to pre-MRI scan value collected at MRI scan visit

    MRI Visit, 1 Month Post MRI Visit

  • Change in RV Sensing Amplitude From Pre-MRI Scan to 1 Month After MRI Scan

    Number of subjects who experienced a decrease in RV sensing amplitude ≤ 50% and at least 5 mV at 1-Month post MRI scan visit compared to pre-MRI scan value collected at MRI scan visit

    MRI Visit, 1 Month Post MRI Visit

Study Arms (2)

Cardiac MRI Scan Group

EXPERIMENTAL
Diagnostic Test: Non-Diagnostic Cardiac MRI scan

Control Group

NO INTERVENTION

Interventions

Cardiac MRI Scan Group

Eligibility Criteria

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

You may qualify if:

  • Have an approved indication per American College of Cardiology(ACC)/ American Heart Association(AHA)/ Heart Rhythm Society(HRS)/ European Society of Cardiology(ESC) guidelines for implantation of a pacemaker
  • Will receive a new dual chamber pacemaker and leads
  • Be willing to undergo an elective MRI scan without complete sedation, that is ,under consciousness during MRI scan
  • Be able to provide informed consent for study participation
  • Be willing and able to comply with the prescribed follow-up tests and schedule of evaluations
  • Is not contraindicated for an MRI scan (per the pre-MRI safety screening form)
  • Age≥18 years
  • Subjects must be able to undergo pectoral implantation

You may not qualify if:

  • Having an existing pacemaker or Implantable Cardioverter Defibrillator (ICD) .A new pacemaker and lead is required for enrollment
  • Permanent Atrial Fibrillation/Flutter
  • Are medically indicated for an MRI scan at the time of enrollment
  • Have an existing active implanted medical device, e.g. neurostimulator, infusion pump etc
  • Have a non-MRI compatible device or material implanted
  • Have a lead extender or adaptor
  • Be unable to fit in MRI bore; will come into contact with the magnet façade inside the MRI bore
  • Are currently participating in a clinical investigation that includes an active treatment arm
  • Are allergic to dexamethasone sodium phosphate(DSP)
  • Are pregnant or planning to become pregnant during the duration of the study
  • Have a life expectancy of less than 12 months due to any condition
  • Are unable to comply with the follow up schedule

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (13)

Zhejiang Greentown Cardiovascular Disease Hospital

Hangzhou, China

Location

Prince of Wales Hospital

Hong Kong, Hong Kong

Location

Fortis Hospital

Mohali, Punjab, India

Location

Care Institute of Medical Sciences

Ahmedabad, India

Location

Apollo Hospitals, Bhubaneshwar

Bhubaneshwar, India

Location

Medanta - The Medicity Hospital

Gūrgaon, India

Location

All India Institute of Medical Sciences, New Delhi

New Delhi, India

Location

Fortis Escorts Heart Institute and Research Center

New Delhi, India

Location

Fortis Flt. Lt. Rajan Dhall Hospital

New Delhi, India

Location

Serdang Hospital

Kajang, Malaysia

Location

King Chulalongkorn Memorial Hospital

Bangkok, Thailand

Location

Ramathibodi Hospital

Bangkok, Thailand

Location

Siriraj Hospital

Bangkok, Thailand

Location

MeSH Terms

Conditions

Bradycardia

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Clinical Project Leader Asia
Organization
Abbott (formerly St. Jude Medical)

Study Officials

  • Chi Keong Ching, Dr

    National Heart Center Singapore

    PRINCIPAL INVESTIGATOR
  • Rabindra Nath Chakraborty, Dr

    Apollo Gleneagles Hospital Kolkata India

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
LTE60
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: Participants are assigned to one of two groups in parallel for the duration of the study
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 20, 2013

First Posted

January 22, 2014

Study Start

June 9, 2014

Primary Completion

March 17, 2016

Study Completion

March 17, 2016

Last Updated

August 21, 2019

Results First Posted

August 21, 2019

Record last verified: 2019-08

Locations