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Heart FailurePhase 4TRIVENTNCT00941850

A Study of Triple-site Ventricular Pacing in Patients Who Have Not Responded to Conventional Dual Ventricular Site Cardiac Resynchronization Therapy

A Phase 4 study testing Upgrade to triple ventricular site CRT in people with Heart Failure, run by University Hospitals, Leicester at 1 site in United Kingdom.

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

Patients are randomised to receive ongoing optimised device and medical therapy or triple ventricular site resynchronisation. The hypothesis states that patients receiving triple-site resynchronization will exhibit a better response. 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?
Upgrade to triple ventricular site CRT
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteUnited Kingdom
Study dates
Jul 2009to Nov 2012
Phase
Phase 4
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

  • Implanted with a CRT device > 6 months previously according to current and conventional CRT indications
  • Device optimization > 1 months previously
  • Aged 18yrs or older
  • Able to attend outpatient follow up

Who cannot join

  • Recent MI (<2 months)
  • Women who are pregnant or planning pregnancy
  • Severe co morbid illness (where patients are not expected to survive duration of follow up period or where repeated outpatient visits may not be in best interest of patients)
  • Upgrade procedure is contraindicated for safety reasons.
  • Class IV inotropic agents
  • Patient unwilling to comply with required follow-up protocol including randomization scheme

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • University of Leicester HNS trust

    Leicester, England, LE3 9QP

Other trials in United Kingdom

About this study

Official title: TRIple-site VENTricular Pacing in Non-responders to Conventional Dual Ventricular Site Cardiac Resynchronization Therapy

Patients are randomised to receive ongoing optimised device and medical therapy or triple ventricular site resynchronisation. The hypothesis states that patients receiving triple-site resynchronization will exhibit a better response.

Conditions
Heart Failure
Being tested
Upgrade to triple ventricular site CRT
Keywords
Cardiac resynchronizton therapy, CRT, Heart failure, Dyssynchrony, Echocardiography, Pacemakers, Nonresponders
Medical subject headings
Heart Failure

What participants receive

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

  • Upgrade to triple ventricular site CRTProcedure or surgery

    Patients in this arm will continue to receive CRT via the original unit, but some will have a change in the mode of delivery of therapy (by placing a second pacing lead to reach a different part of the left ventricle from the part originally paced).

Study groups in NCT00941850
Study groupRoleWhat they receive
Triple site CRTExperimentalThese patients will continue to receive CRT via existing device but will have a change in the mode of delivery of therapy (by placing a second pacing lead to reach a different part of the left ventricle from the part originally paced
Receives: Procedure: Upgrade to triple ventricular site CRT
Optimised medical and device therapyNo interventionThese patients will receive optimised medical and device therapy.

What is being measured

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

  1. Proportion of responders in each group. o Clinical response will be defined according to the Packer score o Echocardiographic response will be defined as a 10% relative reduction in left ventricular end systolic volume at six months

    Measured: 6 months

Secondary outcomes (3)
  1. NYHA class

    Measured: 3 and 6 months

  2. ECHO parameters (LVEDV/ESV, LVEF, MR severity, dyssynchrony indices: time to peak velocity/strain/deformation/time to minimal volume)

    Measured: 3 and 6 months

  3. MVO2 max

    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 posted20 Jul 2009 (estimated)
  2. Study startJul 2009
  3. Primary completionNov 2012
  4. Study completionNov 2012

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00941850
Sponsor's protocol ID
UHL10707
Acronym
TRIVENT
Status last verified
Dec 2015
First submitted
16 Jul 2009
Last updated
8 Dec 2015
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Upgrade to triple ventricular site CRT in people with Heart Failure, run by University Hospitals, Leicester at 1 site in United Kingdom.

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 4 inclusion and 6 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 8 Dec 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 United Kingdom. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Proportion of responders in each group. o Clinical response will be defined according to the Packer score o Echocardiographic response will be defined as a 10% relative reduction in left ventricular end systolic volume at six months (time frame: 6 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 8 Dec 2015.

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