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Heart FailureSELECT-LVNCT01905670

Safety and Performance of Electrodes Implanted in the Left Ventricle

A study testing WiCS-LV system in people with Heart Failure and Ventricular Dysfunction, run by EBR Systems, Inc. at 2 sites in 2 countries.

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 study is intended to demonstrate the safe implant of small receiver-electrodes into the endocardial surface of the left ventricle and to demonstrate its utility in providing cardiac resynchronization therapy in heart failure patients. Read more about this study

Who is it for?
Ages 18 to 75 years
What is being tested?
WiCS-LV system
Could I receive a placebo?
No, everyone receives an active treatment
How many people
39 participants
Where
2 sitesin 2 countries
Study dates
Jul 2013to Nov 2019
Phase
Interventional
Are there results?
None posted in the registry

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 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with standard indications for CRT based upon the most recent ESC/EHRA guidelines AND meeting criteria for one of these two categories:
  • Patients with previously implanted pacemakers or ICD's and meeting standard indications for CRT but in whom standard CRT is not advisable due to known high risk - referred to as "upgrades". Justifications for not using standard CRT must be documented in a CRF.
  • Patients in whom coronary sinus lead implantation or attempted implantation for CRT has failed to provide demonstrable therapy benefit - referred to as "untreated"

Who cannot join

  • 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
  • Contraindication to heparin
  • Contraindication to both chronic anticoagulants and antiplatelet agents
  • Triple anticoagulation therapy (warfarin, clopidogrel, ASA, and other agents)
Show all 20Show fewer
  • Thrombocytopenia (platelet count <150,000)
  • Contraindication to iodinated contrast agents
  • Intracardiac thrombus by transesophageal echocardiography
  • Age less than 18 years or greater than 75
  • Attempted IPG implant within 3 days
  • Life expectancy of less than 12 months
  • Chronic hemodialysis
  • Stage 4 or 5 renal dysfunction defined as GFR <30
  • Grade 4 mitral valve regurgitation
  • Myocardial infarction within one month
  • Major cardiac surgery within one month
  • History of a pericardial effusion in prior procedures
  • Female of childbearing potential, pregnant, or breastfeeding (a pregnancy test will be obtained where applicable)
  • Non-cardiac implanted electrical stimulation therapy devices

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

Czechia1 site
  • Na Homolce Hospital

    Prague, 150 30

Other trials in Czechia

Denmark1 site
  • Aalborg University Hospital

    Aalborg, 9100

Other trials in Denmark

About this study

Official title: Multicenter, Prospective Evaluation of Safety and Performance of the WiCS-LV System in Patients Indicated for Cardiac Resynchronization Therapy

The study is intended to demonstrate the safe implant of small receiver-electrodes into the endocardial surface of the left ventricle and to demonstrate its utility in providing cardiac resynchronization therapy in heart failure patients.

Read the detailed description

Eligible patients will undergo an acoustic window assessment using transthoracic echocardiography. Patients with adequate acoustic windows will undergo implantation of the WiCS-LV system.

Patients will undergo evaluations pre-hospital discharge, and at one month, 3 months, and 6 months post implantation. Extended follow-up will be obtained via a registry at 1, 2, 3, 4, and 5 years post implantation.

Being tested
WiCS-LV system
Keywords
Cardiac Resynchronization Therapy, cardiac pacing, electrical stimulation, bi-ventricular pacing
Medical subject headings
Heart Failure, Ventricular Dysfunction, Cardiomyopathies, Heart Diseases, Cardiovascular Diseases

What participants receive

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

  • WiCS-LV systemDevice

    Also called Implant

    Wireless cardiac stimulator implant to pace the left ventricle for CRT Transvascular endocardial implantation of wireless pacing Electrode and subcutaneous implantation of Implantable Pulse Generator

Study groups in NCT01905670
Study groupRoleWhat they receive
ImplantExperimentalImplant of the WiCS-LV system
Receives: Device: WiCS-LV system

What is being measured

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

  1. Number of patients with device-related adverse events as a measure of safety

    Device-related adverse events are those in which the WiCS-LV system is directly or indirectly responsible.

    Measured: 24 hour peri-operative and one month

  2. Number of patients with procedure-related adverse events as a measure of safety

    Procedure-related adverse events are those which occur during the WiCS-LV system implant procedure.

    Measured: 24 hour perioperative and one month

  3. Bi-ventricular pacing capture

    Bi-ventricular pacing capture documented on 12-lead EKG

    Measured: one month

Secondary outcomes (5)
  1. Number of patients with device-related adverse events as a measure of safety

    Device-related adverse events are those in which the WiCS-LV system is directly or indirectly responsible.

    Measured: 6 months

  2. Number of patients with serious adverse events as a measure of safety

    Measured: 6 months

  3. Bi-ventricular pacing capture

    Bi-ventricular pacing capture documented on 12-lead EKG

    Measured: 6 months

  4. Clinical composite score

    Composite of all cause mortality, heart failure hospitalization, NYHA class, and patient global assessment

    Measured: 6 months

  5. Change in echocardiographic indices

    change in left-ventricular end-systolic volume, left ventricular end-diastolic volume, and ejection fraction

    Measured: 6 months

Timeline

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

  1. First posted23 Jul 2013 (estimated)
  2. Study startJul 2013
  3. Primary completionAug 2015
  4. Study completionNov 2019

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
39 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01905670
Sponsor's protocol ID
EBR-02494
Other IDs
CIV-13-04-010803
Acronym
SELECT-LV
Status last verified
Feb 2018
First submitted
19 Jul 2013
Last updated
9 Jul 2020
Results posted
No
Data monitoring committee
Yes

Publications

  • Reddy VY, Miller MA, Neuzil P, Sogaard P, Butter C, Seifert M, Delnoy PP, van Erven L, Schalji M, Boersma LVA, Riahi S. Cardiac Resynchronization Therapy With Wireless Left Ventricular Endocardial Pacing: The SELECT-LV Study. J Am Coll Cardiol. 2017 May 2;69(17):2119-2129. doi: 10.1016/j.jacc.2017.02.059.

    PubMed 28449772

Questions about this trial

What is this clinical trial studying?

A study testing WiCS-LV system in people with Heart Failure and Ventricular Dysfunction, run by EBR Systems, Inc. at 2 sites in 2 countries.

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 3 inclusion and 20 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 9 Jul 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 Czechia, Denmark. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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 patients with device-related adverse events as a measure of safety (time frame: 24 hour peri-operative and one 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?

On the ClinicalTrials.gov record for NCT01905670, which also lists 1 linked publication.

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 9 Jul 2020.

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