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Heart FailureNCT01193712

Endocardial Pacing in On-table Non-responders in Cardiac Resynchronization Therapy

A study testing temporary left ventricular endocardial pacing in people with Heart Failure, run by Catharina Ziekenhuis Eindhoven at 1 site in Netherlands.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The purpose of this study is to determine whether left ventricular endocardial pacing exhibits a greater acute hemodynamic response during biventricular pacing in patients who do not show this response to standard cardiac resynchronization therapy. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Heart Failure
What is being tested?
temporary left ventricular endocardial pacing
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteNetherlands
Study dates
Aug 2010to Apr 2012
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age ≥18y
  • LVEF ≤35%
  • QRS-duration ≥0.12 seconds
  • NYHA functional class III or IV despite optimal medical therapy defined as use of angiotensin-converting enzyme inhibitors or angiotensin-II receptor blocker and beta-blockers unless they are not tolerated or contra-indicated
  • sinus rhythm or atrial fibrillation

Who cannot join

  • episode of acute heart failure ≤3 months
  • change in dosage of beta-blockers, angiotensin-converting enzyme inhibitors or angiotensin-II receptor blockers ≤3 months
  • unstable angina pectoris, acute myocardial infarction, percutaneous intervention or coronary bypass surgery ≤3 months
  • chronic atrial arrhythmias other than atrial fibrillation
  • any mechanical or biological valve prosthesis
  • atrial septal defect
Show all 14Show fewer
  • right-to-left shunt
  • severe pulmonary hypertension (systolic pulmonary artery pressure >90 mmHg)
  • uncontrolled arterial hypertension
  • known allergy to sulphur hexafluoride
  • end-stage renal or hepatic disease
  • inability to provide written informed consent
  • pregnancy or childbearing potential without use of birth-control measurements
  • general contra-indications to magnetic resonance imaging

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • Catharina Ziekenhuis

    Eindhoven

Other trials in Netherlands

About this study

Official title: Non-Responders in Cardiac Resynchronization Therapy

The purpose of this study is to determine whether left ventricular endocardial pacing exhibits a greater acute hemodynamic response during biventricular pacing in patients who do not show this response to standard cardiac resynchronization therapy.

Read the detailed description

Cardiac resynchronisation therapy (CRT) with biventricular pacemakers and implantable cardiac defibrillators (ICD) has proven to be a valuable therapy in selected patients with systolic heart failure, ameliorating both morbidity and mortality. However, with current selection criteria and implant technique, about 20 to 30 % of patients remain non-responders. Non-responders might be due to failing selection criteria or methodology in casu echocardiography. However, an important number of non-responders may result of sub-optimal positioning of the left ventricular lead, remote from the site of delayed activation. Endocardial left ventricular stimulation may ameliorate the shortcomings of epicardial stimulation. The advantage of an endocardial approach is the absence of phrenic nerve stimulation which regularly complicates epicardial pacing, a more predictable pacing threshold and much less restriction to position the lead in the area of interest. Transseptal left ventricular endocardial pacing has already been used in patients in whom standard epicardial pacing was not applicable.

Conditions
Heart Failure
Being tested
temporary left ventricular endocardial pacing
Keywords
Electrophysiologic Techniques, Cardiac
Medical subject headings
Heart Failure

What participants receive

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

  • temporary left ventricular endocardial pacingProcedure or surgery

    a temporary pacemaker lead will be introduced through the aortic valve to evaluate the effect of left ventricular endocardial pacing. Four different pacing sites (basal and apical septal, basal and apical lateral) will be investigated with measurement of LV dP/dtmax. Afterwards, the endocardial pacing lead will be removed.

Study groups in NCT01193712
Study groupRoleWhat they receive
on-table non-responderOtherpatients who do not show an improvement of more than or equal to 15% in LV dP/dtmax measured immediately after implantation of a cardiac resynchronization therapy device
Receives: Procedure: temporary left ventricular endocardial pacing
on-table respondersNo interventionpatients who do show an improvement of more than or equal to 15% in LV dP/dtmax measured immediately after implantation of a cardiac resynchronization therapy device

What is being measured

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

  1. change in acute hemodynamic response to CRT defined as an increase in LV dP/dtmax of ≥10% during left endocardial pacing compared to left epicardial pacing.

    Measured: baseline and 3 months

Secondary outcomes (4)
  1. improvement in NYHA functional class ≥1

    Measured: baseline and 3 months

  2. decrease in MLWHFQ of ≥9 points

    Measured: baseline and 3 months

  3. decrease in LVESV of ≥15%

    Measured: baseline and 3 months

  4. increase in LVEF of ≥5%

    Measured: baseline and 3 months

Timeline

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

  1. First posted2 Sep 2010 (estimated)
  2. Study startAug 2010
  3. Primary completionApr 2012
  4. Study completionApr 2012

Why it stopped: too limited number of eligible patients

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
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01193712
Sponsor's protocol ID
NL26963.060.09
Status last verified
Feb 2015
First submitted
25 Aug 2010
Last updated
3 Feb 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing temporary left ventricular endocardial pacing in people with Heart Failure, run by Catharina Ziekenhuis Eindhoven at 1 site in Netherlands.

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 14 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: withdrawn, as of the sponsor's last update on 3 Feb 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Netherlands. 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 was withdrawn before enrolling participants, so there are no results.

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?

change in acute hemodynamic response to CRT defined as an increase in LV dP/dtmax of ≥10% during left endocardial pacing compared to left epicardial pacing. (time frame: baseline and 3 months). 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 3 Feb 2015.

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