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Pacemaker MalfunctionHUCSNCT04320849

Human Use Condition Study- Evaluation of Implanted Leads in Humans

An observational study of Pacemaker Malfunction, run by Duke University at 5 sites in United States.

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 purpose of this study is to evaluate different types of leads (wires) that are connected to your pacemaker (an implanted device which assists your heart function) to understand how the shape and motion of your previously implanted lead changes in the body. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Pacemaker Malfunction
How many people
117 participants
Where
5 sitesUnited States
Study dates
1 Jun 2021to 23 May 2022
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: The study will enroll at least 80 and up to 120 subjects with one of four different specified market-released lead families. The leads are from all four CIED manufacturers participating in this protocol. Approximately 30 leads from each manufacturer's lead family will be required.

Who may be able to join

  • Patients with RV leads included in the scope of this study whose system has been implanted for at least 3 calendar months Patients at least 18 years of age and capable of providing informed consent Patients who can physically perform range of arm motion and breath-holding described in the imaging protocol Patients who are willing and able to comply with instruction related to the imaging protocol

Who cannot join

  • Planned lead modification Patients with abandoned leads (includes: RV/RA/LV) Patients undergoing second or subsequent pulse generator change Patient has permanent atrial arrhythmias Limited life expectancy or medical condition that would not allow completion of the study Patient is known to be pregnant or breastfeeding at time of consent Limited range of mobility of the implant location arm Patient is unable to climb on and off an examination table unassisted Patients deemed hemodynamically unstable

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

United States5 sites
  • MercyOne Iowa Heart Center

    Des Moines, Iowa, 50266

  • Jackson Heart Clinic

    Jackson, Mississippi, 39216

  • Cedars Sinai Medical Center

    Los Angeles, California, 90048

  • Minneapolis Heart Institute

    Saint Paul, Minnesota, 55102

  • Trinity Clinic

    Tyler, Texas, 75701

Other trials in United States

About this study

Official title: Human Use Condition Study-Fluoroscopic Evaluation of 3D Curvature of Implanted Right Ventricular Leads in Humans

The purpose of this study is to evaluate different types of leads (wires) that are connected to your pacemaker (an implanted device which assists your heart function) to understand how the shape and motion of your previously implanted lead changes in the body.

Read the detailed description

The purpose of this study is to evaluate different types of leads (wires) that are connected to the pacemaker (an implanted device which assists enrolled subject's heart function) to understand how the shape and motion of the previously implanted lead changes in the body.

What participants receive

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

Study groups in NCT04320849
Study groupRoleWhat they receive
Patients with protocol identified RV LeadsMedtronic model 6935M (Quattro Secure Single Coil Defibrillation Lead) Abbott model LDA 210Q (Optisure Single Coil Defibrillation Lead) Abbott model LDA 220Q (Optisure Dual Coil Defibrillation Lead) Boston Scientific model 4470/4471 (FINELINE II/FINELINE II Sterox); Positive Fixation Biotronik model Solia S (Active Fixation Leads)

What is being measured

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

  1. Number of Participants With in Vivo Cyclic Mean Curvature of Pacing and Defibrillation Leads in the Extravenous Region Determined During Specified Arm Movements

    Measure dynamic in vivo curvature of RV pacing and defibrillator leads in the extravenous and intracardiac anatomy

    ***In vivo cyclic mean curvature of RV pacing and defibrillation leads in the extravenous region will be determined during specified arm movements. The relationship between lead stiffness and curvature will be evaluated.

    Measured: Approximately 1 month

  2. Number of Participants With in Vivo Cyclic Mean Curvature of Pacing and Defibrillation Leads in the Intracardiac Region Determined During Two or More Cardiac Cycles

    Measure the relationship between lead bending stiffness and in vivo curvature

    ***In vivo cyclic mean curvature of RV pacing and defibrillation leads in the intracardiac region will be determined during two or more cardiac cycles. The relationship between lead stiffness and curvature will be evaluated.

    Measured: Approximately 1 month

  3. Number of Participants With in Vivo Cyclic Mean Curvature of Pacing and Defibrillation Leads in the Connector Region Determined During Specified Arm Movements

    Assess the relationship between subject and implant variables and lead curvature

    ***In vivo cyclic mean curvature of RV pacing and defibrillation leads in the connector region were determined during specified arm movements. The relationship between lead stiffness and curvature was evaluated.

    Measured: Approximately 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 posted25 Mar 2020
  2. Study start1 Jun 2021
  3. Primary completion30 Apr 2022
  4. Study completion23 May 2022

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
Other
Time perspective
Prospective
Enrolment
117 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04320849
Sponsor's protocol ID
Pro00103284
Acronym
HUCS
Status last verified
Jan 2024
First submitted
23 Mar 2020
Last updated
19 Jan 2024
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Pacemaker Malfunction, run by Duke University at 5 sites in United States.

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 1 inclusion and 1 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 19 Jan 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in United States. 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 19 Jan 2024). 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?

Number of Participants With in Vivo Cyclic Mean Curvature of Pacing and Defibrillation Leads in the Extravenous Region Determined During Specified Arm Movements (time frame: Approximately 1 month). 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?
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 19 Jan 2024.

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