NCT05451797

Brief Summary

This study is a single arm, prospective, feasibility, multi-centre, observational study. Participants will be suitable for a Cardiac Resynchronisation Therapy (CRT) implant using Wireless Stimulation Endocardially for Cardiac Resynchronization Therapy, known as the WiSE-CRT device system as well as requiring a pacemaker implant which will also be leadless. Some of these participants may also require an AV Node ablation. The purpose of this study is to assess the safety and efficacy of these two cardiac devices implanted in the order of operator preference (all implants undertaken on the same day or in a number of up to 4 separate sequenced implants/procedures).

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
40

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jul 2024

Status
unknown

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

June 12, 2022

Completed
29 days until next milestone

First Posted

Study publicly available on registry

July 11, 2022

Completed
2 years until next milestone

Study Start

First participant enrolled

July 1, 2024

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

December 26, 2023

Status Verified

December 1, 2023

Enrollment Period

1.5 years

First QC Date

June 12, 2022

Last Update Submit

December 22, 2023

Conditions

Outcome Measures

Primary Outcomes (2)

  • Safety from major complications post device implants & procedures

    Freedom from major complications following device implants and procedures, whether single stage or multiple staged procedures. Major complications are defined as any complication related to the device or procedure that results in death, hospitalization, prolongation of hospitalisation for 48 or more hours, permanent loss of device function due to a mechanical or electrical malfunction or system change (removal, repositioning, or replacement).

    6 months

  • Efficacy of Cardiac Resynchronisation Therapy (CRT) measured by confirmation of Bi Ventricular Pacing on 12 lead ECG.

    Evidence of biventricular pacing on 12 lead ECG recorded at 6 months will confirm CRT delivered by implanted devices for each participant.

    6 months

Secondary Outcomes (4)

  • Clinical Response of Each Participant measuring Left Ventricular Ejection Fraction.

    6 months

  • Clinical Response of Each Participant measuring Left Ventricular End Systolic Volume.

    6 months

  • Clinical response of Each Participant measuring New York Heart Association classification.

    6 months

  • Clinical response of Each Participant measuring 6 Minute Walk Test

    6 months

Other Outcomes (1)

  • Analysis of single stage and multiple stage device implant procedure times

    6 months

Interventions

Implant of two cardiac devices

Eligibility Criteria

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

Adult patients appropriate for these devices

You may qualify if:

  • Male or Female, aged 18 years or above. Participant is willing and able to give informed consent for participation in the study.
  • Additionally, participants will be enrolled and classified from one of two distinct groups:
  • GROUP A: De novo totally leadless CRT
  • implant in whom the physician believes a totally leadless approach would be beneficial (e.g. wish to avoid lifelong transvenous lead implant, anatomical constraints, history of device infection). Examples of this could include:
  • symptomatic atrial fibrillation (AF) and an uncontrolled heart rate who are candidates for AV node ablation (irrespective of QRS duration and ejection fraction), in whom the physician believes a leadless pacing approach would be beneficial.
  • high degree atrioventricular block who has an indication for permanent pacing, with an ejection fraction ≤50%, are expected to require ventricular pacing more than 40% of the time and in whom the physician believes a leadless approach would be beneficial.
  • Other indications for leadless pacing including venous obstruction, pocket issues, infection risk (eg: chronic dialysis), etc.
  • GROUP B: Upgrade chronic intracardiac pacemaker to CRT
  • o Patient with existing intracardiac pacemaker with greater than 20% right ventricular (RV) pacing, who have developed symptomatic heart failure.

You may not qualify if:

  • Female participant who is pregnant, lactating or planning pregnancy during the course of the study
  • Inability to comply with the study follow-up or other study requirements
  • History of chronic alcohol/drug abuse and currently using alcohol/drugs
  • Non-ambulatory (or unstable) NYHA class 4
  • Life expectancy less than 12 months
  • Any other significant disease or disorder which, in the opinion of the Investigator, may either put the participants at risk because of participation in the study, or may influence the result of the study, or the participant's ability to participate in the study.
  • Enrolled in another clinical study that could confound the results of this study (note: patients enrolled in complementary study are eligible for enrolment)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Heart Failure

Condition Hierarchy (Ancestors)

Heart DiseasesCardiovascular Diseases

Study Officials

  • Paul R Roberts, MD

    University Hospital Southampton NHS Foundation Trust

    PRINCIPAL INVESTIGATOR

Central Study Contacts

elizabeth greenwood, MSc

CONTACT

elizabeth greenwood, MSc

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 12, 2022

First Posted

July 11, 2022

Study Start

July 1, 2024

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

December 26, 2023

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will not share