NCT04645173

Brief Summary

The objective of this study is to gather information on participants returning at time of CIED change-out or revision who underwent a device implantation with either a CanGaroo® envelope, TYRX™ envelope, or no envelope.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
46

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Feb 2021

Typical duration for all trials

Geographic Reach
1 country

11 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

November 16, 2020

Completed
11 days until next milestone

First Posted

Study publicly available on registry

November 27, 2020

Completed
2 months until next milestone

Study Start

First participant enrolled

February 2, 2021

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2023

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2023

Completed
Last Updated

January 9, 2024

Status Verified

January 1, 2024

Enrollment Period

2.7 years

First QC Date

November 16, 2020

Last Update Submit

January 5, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Blinded Histologic Evaluation of Biopsies Taken from the Anterior and Posterior Capsule Wall

    Microscopic analysis of cellularity, vascularity, collagen density, necrosis, infectious agents, remnant device material, giant cells, and fibrotic capsule thickness will be evaluated for each biopsy site using a quantitative scoring system with an attempt to distinguish between remnant envelope collagen (if ECM envelope was used) and neocollagen from the participant. Composite (total) and average scores will be determined based on the individual scores from each biopsy site. The quantitative thickness of each fibrotic capsule biopsy will be measured using digital image software. Four (4) thickness measurements will be performed across the image for each biopsy sample, and the average fibrotic thickness will be reported for each sample. In addition, the total average thickness across the four samples will be determined based on the average individual recordings.

    Surgical Procedure Visit

Secondary Outcomes (1)

  • Documented CIED Complications

    Pre-Surgery Visit

Other Outcomes (4)

  • Patient and Observer Scar Assessment Scale (POSAS)

    Pre-Surgery Visit

  • CIED Scar Photographs

    Pre-Surgery Visit

  • CIED Implant Photographs

    Surgical Procedure Visit

  • +1 more other outcomes

Study Arms (3)

CanGaroo Envelope

Participants who received a CanGaroo envelope during CIED implantation

Device: CIED envelope

TYRX Envelope

Participants who received a TYRX envelope during CIED implantation

Device: CIED envelope

No Envelope

Participants who did not receive an envelope during CIED implantation

Interventions

Evaluation of the difference in cohorts for soft tissue healing surrounding the CIED implant and clinical outcomes and complications.

CanGaroo EnvelopeTYRX Envelope

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Participants who underwent one or more prior CIED implantation procedure at the current implant site utilizing CanGaroo®, TYRX™, or no envelope and are returning for a CIED change-out or revision procedure.

You may qualify if:

  • Participants who previously underwent one or more prior CIED implantations utilizing a CanGaroo® envelope, TYRX™ envelope, or no envelope and are returning for a CIED change-out or revision procedure at least 4 months or longer from their prior procedure.
  • The following possible scenarios would be eligible for enrollment:
  • a. One prior CIED Implant: i. No envelope ii. CanGaroo® envelope iii. TYRX™ envelope b. Multiple prior CIED Implants (envelope type should remain the same for each participant throughout their implant history): i. No envelope → no envelope ii. No envelope → CanGaroo® envelope iii. No envelope → TYRX™ envelope iv. CanGaroo® envelope → CanGaroo® envelope v. TYRX™ envelope → TYRX™ envelope vi. No envelope → CanGaroo® envelope → CanGaroo® envelope vii. No envelope → no envelope → CanGaroo® envelope viii. No envelope → TYRX™ envelope → TYRX™ envelope ix. No envelope → no envelope → TYRX™ envelope
  • Participants aged 18 years or older at time of enrollment.
  • Participant is able and agrees to provide written informed consent and use of PHI.
  • Participants for whom prior CIED implant history information can be obtained.

You may not qualify if:

  • Active infection involving the CIED implant site (clinical diagnosis of an active infection at the time of change-out/revision procedure).
  • Participants under the age of 18 at time of enrollment.
  • Participants with a history of multiple prior CIED implants over time using more than one type of envelope will be excluded as well as participants with a history of one type of envelope use, but the current pocket does not have an envelope. Scenarios that would be excluded:
  • CanGaroo® envelope → TYRX™ envelope
  • TYRX™ envelope → CanGaroo® envelope
  • CanGaroo® envelope - no envelope
  • TYRX™ envelope → no envelope
  • No envelope → CanGaroo® envelope → no envelope
  • No envelope → TYRX™ envelope → no envelope
  • No envelope → CanGaroo® envelope → TYRX™ envelope
  • No envelope → TYRX™ envelope → CanGaroo® envelope
  • CanGaroo® envelope → no envelope → TYRX™ envelope
  • TYRX™ envelope → no envelope → CanGaroo® envelope
  • CanGaroo® envelope → TYRX™ envelope → no envelope
  • TYRX™ envelope → CanGaroo® envelope → no envelope
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (11)

Valley Heart Rhythm Specialists

Chandler, Arizona, 85224, United States

Location

Bay Pines VA

Bay Pines, Florida, 33744, United States

Location

Baptist Medical Center

Jacksonville, Florida, 32207, United States

Location

University of Florida

Jacksonville, Florida, 32209, United States

Location

Prairie Education & Research Cooperative / St. John's Hospital

Springfield, Illinois, 62769, United States

Location

U of L Health/Jewish Hospital

Louisville, Kentucky, 40241, United States

Location

Columbia University Irving Medical Center

New York, New York, 10032, United States

Location

Atrium Health

Concord, North Carolina, 28025, United States

Location

East Carolina University/Vidant Medical Center

Greenville, North Carolina, 27834, United States

Location

Penn Presbyterian Medical Center

Philadelphia, Pennsylvania, 19104, United States

Location

University of Virginia Medical Center

Charlottesville, Virginia, 22903, United States

Location

Related Links

Biospecimen

Retention: SAMPLES WITH DNA

Characteristics of soft tissue healing surrounding the CIED implant as assessed by blinded histologic evaluation of systematic biopsies taken at the time of change-out/revision.

MeSH Terms

Conditions

Heart Diseases

Condition Hierarchy (Ancestors)

Cardiovascular Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 16, 2020

First Posted

November 27, 2020

Study Start

February 2, 2021

Primary Completion

October 31, 2023

Study Completion

December 31, 2023

Last Updated

January 9, 2024

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will not share

Locations