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ArhythmiaNCT02636712

Observation of ImageReady™ MR Conditional Pacing System in China

An observational study of Arhythmia and Atrioventricular Heart-block, run by Boston Scientific Corporation at 2 sites in China.

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

To observe the safety and efficacy of ImageReady™ MR Conditional Pacing System in Chinese subjects Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
ImageReady™ MR Conditional Pacing System
Type of treatment
Medical device
How many people
10 participants
Where
2 sitesChina
Study dates
8 Dec 2015to Nov 2017
Phase
Observational
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

Study population: Subjects included in the MR China Study should be selected from the investigator's general patient population indicated for single or dual chamber pacemaker implantation.

Who may be able to join

  • Subject must have the ImageReady System as their initial (de novo) pacing system implant
  • Subject has a Class I or II indication for implantation of a pacemaker according to the CSPE guidelines5
  • Subject is able and willing to undergo an MR scan
  • Subject is willing and capable of providing informed consent and participating in all testing/ visits associated with this clinical study at the intervals defined by this protocol
  • Subject is age 18 or above

Who cannot join

  • Subject has or has had any pacing or ICD system implants
  • Subject has any implants or devices that are not suitable for MR scan
  • Subject is enrolled in any other concurrent study that might interfere with this study
  • Subject has documented life expectancy of less than 12 months
  • Women of childbearing potential who are or might be pregnant at the time of this study

Trial locations and contacts

2 sites in 1 country.

China2 sites
  • Jiangsu Province Hospital

    Nanjing, Jiangsu, 210029

  • Shanghai Zhongshan Hospital

    Shanghai, Shanghai Municipality, 200032

Other trials in China

About this study

To observe the safety and efficacy of ImageReady™ MR Conditional Pacing System in Chinese subjects

Read the detailed description

Key Inclusion Criteria:

  1. Subject must have the Image Ready System as their initial (de novo) pacing system implant.
  2. Subject has a Class I or II indication for implantation of a pacemaker according to the CSPE guidelines.
  3. Subject is able and willing to undergo an MR scan.•
  4. Subject is willing and capable of providing informed consent and participating in all testing/ visits associated with this clinical study at the intervals defined by this protocol.
  5. Subject is age 18 or above.

Key Exclusion Criteria

  1. Subject has or has had any pacing or ICD system implants.
  2. Subject has any implants or devices that are not suitable for MR scan.
  3. Subject is enrolled in any other concurrent study that might interfere with this study.
  4. Subject has documented life expectancy of less than 12 months.
  5. Women of childbearing potential who are or might be pregnant at the time of this study.

Primary Safety Endpoint:

MR Scan related Complication Free Rate Analyzed at MRI Visit +1 Month.

Primary efficacy Endpoint:

  1. Pacing Threshold (at 0.5 ms pulse width) comparison pre and 1 Month post MR Scan: pacing threshold increase ≤ 0.5 V after scan.
  2. Sensed Amplitude comparison pre- and 1 Month post-MR Scan: sensed amplitude: ≥ 1.0 mV after scan, and ≥ 50% of that before scan.
Being tested
ImageReady™ MR Conditional Pacing System
Medical subject headings
Atrioventricular Block, Syncope, Vasovagal

What participants receive

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

  • ImageReady™ MR Conditional Pacing SystemDevice

Study groups in NCT02636712
Study groupRoleWhat they receive
ImageReady™ MR Conditional Pacing System1. Subject must have the ImageReady™ System as their initial (de novo) pacing system implant 2. Subject has a Class I or II indication for implantation of a pacemaker according to the CSPE guidelines
Receives: Device: ImageReady™ MR Conditional Pacing System

What is being measured

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

  1. Percentage of Participants Without Complications at MRI Visit + 1 Month.

    No one has any complications related MR Scan . So Complication-Free rate is 100%.

    Measured: Within 1 month after the Pacemaker been implanted.

  2. Percentage of Participants Reporting an Increase in Pacing Thresholds ≤ 0.5V (at 0.5 ms) From Pre-MR Scan to MRI Visit + 1 Month Follow-up

    The percentage of Participants Reporting an Increase in Pacing Thresholds ≤ 0.5V (at 0.5 ms) from Pre-MR Scan to MRI Visit + 1 Month Follow-up is 100 percent.

    Measured: Pre-MR scan and 1 Month post-MR Scan.

  3. Percentage of Participants With Atrial Sensed Amplitude at the MRI Visit + 1 Month Follow up Remains ≥ 1.0 mV and Above 50% of the Pre-MR Scan Value

    The Percentage of participants with atrial sensed amplitude at the MRI Visit + 1 Month Follow up remains ≥ 1.0 mV and above 50% of the pre-MR scan value is 100%.

    Measured: Pre-MR scan and 1 Month post-MR Scan.

  4. Percentage of Participants With Ventricular Sensed Amplitudes at the MRI Visit + 1 Month Follow up Remains ≥ 5.0 mV and Above 50% of the Pre-MR Scan.

    The percentage of participants with ventricular sensed amplitudes at the MRI Visit + 1 Month Follow up remains ≥ 5.0 mV and above 50% of the pre-MR scan is 100%.

    Measured: Pre-MR scan and 1 Month post-MR Scan.

Secondary outcomes (1)
  1. Percentage of Participants Without System-related Complications

    No one has any complications related system occurred. So Complication-Free rate is 100%.

    Measured: Within 3 months after the Pacemaker been implanted.

Timeline

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

  1. First posted22 Dec 2015 (estimated)
  2. Study start8 Dec 2015
  3. Primary completion16 Mar 2016
  4. Study completionNov 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02636712
Sponsor's protocol ID
C1913
Status last verified
Jan 2020
First submitted
11 Dec 2015
Last updated
8 Apr 2020
Data monitoring committee
No
Individual data sharing
No

Publications

  • Nazarian S, Hansford R, Roguin A, Goldsher D, Zviman MM, Lardo AC, Caffo BS, Frick KD, Kraut MA, Kamel IR, Calkins H, Berger RD, Bluemke DA, Halperin HR. A prospective evaluation of a protocol for magnetic resonance imaging of patients with implanted cardiac devices. Ann Intern Med. 2011 Oct 4;155(7):415-24. doi: 10.7326/0003-4819-155-7-201110040-00004.

    PubMed 21969340
  • Russo RJ. Determining the risks of clinically indicated nonthoracic magnetic resonance imaging at 1.5 T for patients with pacemakers and implantable cardioverter-defibrillators: rationale and design of the MagnaSafe Registry. Am Heart J. 2013 Mar;165(3):266-72. doi: 10.1016/j.ahj.2012.12.004. Epub 2013 Jan 28.

    PubMed 23453091
  • BSC data on file. 91022242_SAMURAI_FDA endpoint report_29JUN2015_Final_revAC.

  • ASTM Standard F2503-08, "Standard Practice for Marking Medical Devices and Other Items for Safety in the Magnetic Resonance Environment" ASTM International, West Conshohocken, PA, 2008, DOI: 10.1520/F2503-08, www.astm.org

  • Wolf SM, Lawrenz FP, Nelson CA, Kahn JP, Cho MK, Clayton EW, Fletcher JG, Georgieff MK, Hammerschmidt D, Hudson K, Illes J, Kapur V, Keane MA, Koenig BA, Leroy BS, McFarland EG, Paradise J, Parker LS, Terry SF, Van Ness B, Wilfond BS. Managing incidental findings in human subjects research: analysis and recommendations. J Law Med Ethics. 2008 Summer;36(2):219-48, 211. doi: 10.1111/j.1748-720X.2008.00266.x.

    PubMed 18547191
  • Kanal E, Barkovich AJ, Bell C, Borgstede JP, Bradley WG Jr, Froelich JW, Gilk T, Gimbel JR, Gosbee J, Kuhni-Kaminski E, Lester JW Jr, Nyenhuis J, Parag Y, Schaefer DJ, Sebek-Scoumis EA, Weinreb J, Zaremba LA, Wilcox P, Lucey L, Sass N; ACR Blue Ribbon Panel on MR Safety. ACR guidance document for safe MR practices: 2007. AJR Am J Roentgenol. 2007 Jun;188(6):1447-74. doi: 10.2214/AJR.06.1616. No abstract available.

    PubMed 17515363
  • 张澍, 华伟, 黄德嘉, 王景峰, 吴立群, 杨杰孚, 曹克将, 黄从新, 王方正, 陈新: 植入性心脏起搏器治疗--目前认识和建议(2010年修订版). 中华心律失常学杂志 2010; 04:245-249. Shu Zhang, Wei Hua, Dejia Huang, Jingfeng Wang, Liqun Wu, Jiefu Wu, Kejiang Cao, Congxin Huang, Fangzheng Wang, Xin Chen: Implantable Cardiac Pacemaker therapy- Cognition and Suggestion Present ( updated version on 2010). Chinese Journal of Cardiac Arrhythmia, 2010; 04:245-249

Questions about this trial

What is this clinical trial studying?

An observational study of Arhythmia and Atrioventricular Heart-block, run by Boston Scientific Corporation at 2 sites in China.

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 5 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 8 Apr 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in China. 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 27 Jan 2020). 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 Without Complications at MRI Visit + 1 Month. (time frame: Within 1 month after the Pacemaker been implanted.). The study lists 4 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 NCT02636712, which also lists 7 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 8 Apr 2020.

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