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Congenital Heart DiseaseNCT01762124

Study of the Native Outflow Tract Transcatheter Pulmonary Valve (TPV)

A study testing Native Outflow Tract TPV in people with Congenital Heart Disease and Tetralogy of Fallot, run by Medtronic Heart Valves at 3 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 purpose of this early feasibility study is to determine how a new transcatheter pulmonary valve will move and perform once implanted in the right ventricular outflow tract. Read more about this study

Who is it for?
Any age
Conditions the study is for
Congenital Heart Disease, Tetralogy of Fallot
What is being tested?
Native Outflow Tract TPV
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
3 sitesin 2 countries
Study dates
Oct 2012to Jul 2020
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Subject has pulmonary regurgitation as per one or more of the following criteria: Severe pulmonary regurgitation as measured by Doppler echocardiography, or Pulmonary regurgitant fraction ≥ 30% as measured by cardiac magnetic resonance imaging
  • Clinical indication for surgical placement of a RVOT conduit or bioprosthetic pulmonary valve per one or more of the following criteria: Subject is symptomatic secondary to pulmonary insufficiency (e.g. exercise intolerance, fluid overload) as classified by the Investigator, or Right ventricular end diastolic volume (RVEDV) ≥ 150 ml/m2
  • Subject is willing to consent to participate in the study and will commit to completion of all follow-up requirements

Who cannot join

  • Anatomy unable to accommodate a 25 Fr delivery system
  • Obstruction of the central veins
  • Clinical or biological signs of infection including active endocarditis
  • Indicated for intervention of stenosis of the branch pulmonary arteries at time of implant
  • Positive pregnancy test at baseline (prior to CT angiography and again prior to implant procedure) in female subjects of child bearing potential
  • Patients with right ventricular outflow tract obstruction (RVOTO) lesions surgically treated with a right ventricle-to-pulmonary artery conduit implant
Show all 13Show fewer
  • A major or progressive non-cardiac disease (e.g. liver failure, renal failure, cancer) that results in a life expectancy of less than one year
  • Planned implantation of the Native Outflow Tract TPV in the left heart
  • RVOT anatomy or morphology that is unfavorable for anchoring
  • Known allergy to aspirin, heparin, or nickel
  • Echocardiographic evidence of intracardiac mass, thrombus, or vegetation
  • Pre-existing prosthetic heart valve or prosthetic ring in any position
  • Patient is currently enrolled in another investigational device or drug trial that may influence the outcome of this trial.

Trial locations and contacts

3 sites in 2 countries.

3 sites in 2 countries

United States2 sites
  • Boston Children's Hospital

    Boston, Massachusetts, 02115

  • Nationwide Children's Hospital

    Columbus, Ohio, 43205

Other trials in United States

Canada1 site
  • The Hospital for Sick Children

    Toronto, Ontario, M5G 1X8

Other trials in Canada

About this study

Official title: Native Outflow Tract Transcatheter Pulmonary Valve Research Clinical Study

The purpose of this early feasibility study is to determine how a new transcatheter pulmonary valve will move and perform once implanted in the right ventricular outflow tract.

Read the detailed description

Medtronic, Inc. is in the process of developing a novel transcatheter device option for patients with congenital heart disease, without right ventricle-to-pulmonary artery conduits, called the Native Outflow Tract Transcatheter Pulmonary Valve. Given limitations in the animal model to confirm device boundary conditions, this feasibility study is proposed to characterize that information as well as evaluate safety, procedural feasibility and performance data to be used for future development of the device.

Being tested
Native Outflow Tract TPV
Keywords
Pulmonary valve, Congenital heart disease, Transcatheter pulmonary valve, Percutaneous pulmonary valve
Medical subject headings
Heart Defects, Congenital, Tetralogy of Fallot

What participants receive

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

  • Native Outflow Tract TPVDevice

    Also called Native TPV

    Transcatheter placement of a pulmonary valve

Study groups in NCT01762124
Study groupRoleWhat they receive
Native Outflow Tract TPVExperimentalImplantation of the Native Outflow Tract TPV
Receives: Device: Native Outflow Tract TPV

What is being measured

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

  1. Measurement of radial, linear and axial compression, bending and torsion of device

    The following variables will be measured: radial compression, linear compression, axial compression, device bending and device torsion using the discharge CT. The degree of deformation of the device will be reported.

    Measured: 4 Days Post-Implant

Secondary outcomes (11)
  1. Number of Patients with Procedural Success

    The number of patients who are successfully implanted with the device will be reported. This is measured by meeting all of the following criteria: Confirmation that the device is fixated within the desired location, RV-PA peak-to-peak gradient is less than 25 mmHg, Pulmonary regurgitation is moderate or less, and the subject is free of explantation at 24 hours post-implant.

    Measured: 24 hours post-implant

  2. Number of Patients with Serious Procedural Adverse Events

    The number of patients that experience a serious procedural adverse event, as defined per the study protocol, will be reported.

    Measured: Through 5 year follow-up

  3. Number of Patients with Device-related Adverse Events

    The number of patients that experience a device-related adverse event, as defined per the study protocol, will be reported.

    Measured: Through 5 years

  4. Number of Patients with Stent Fracture

    The number of patients that experience a stent fracture of their device will be reported.

    Measured: Through 5 years

  5. Number of Patients with Catheter Re-intervention on the TPV

    The number of patients that experience a catheter re-intervention will be reported.

    Measured: Through 5 years

  6. Assessment of Surgical Intervention on the TPV

    The number of patients that undergo a surgical intervention will be reported.

    Measured: Through 5 years

  7. Number of Patient Deaths (all-cause, procedural, and device-related)

    Any patient deaths that occur during the study will be reported.

    Measured: Through 5 years

  8. Pulmonary Regurgitant Fraction (%) as measured by cardiac MRI

    The pulmonary regurgitant fraction for all patients, as measured by cardiac MRI, will be reported.

    Measured: Through 5 years

  9. Pulmonary Regurgitation Severity as Measured by Echocardiography

    The pulmonary regurgitation severity for all patients, as measured by echocardiography, will be reported.

    Measured: Through 5 years

  10. Right Ventricular Volume (ml) as Measured by Cardiac MRI

    The right ventricular volumes for all patients, as measured by cardiac MRI, will be reported.

    Measured: Through 5 years

  11. Mean RVOT Gradient (mmHg) as Measured by Color Wave Doppler

    The mean RVOT gradient for all patients, as measured by Color Wave Doppler, will be reported.

    Measured: Through 5 years

Timeline

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

  1. First posted7 Jan 2013 (estimated)
  2. Study startOct 2012
  3. Primary completionMay 2015
  4. Study completionJul 2020

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
Device feasibility
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01762124
Sponsor's protocol ID
10022972DOC
Status last verified
Aug 2020
First submitted
30 Nov 2012
Last updated
7 Aug 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • Morray BH, Gillespie MJ, Cheatham JP, Salavitabar A, Peng L, Jones TK, Levi DS, Gray RG, Asnes J, Cabalka AK, Fujimoto K, Qureshi AM, Bergersen L, Benson LN, Haugan D, McElhinney DB. Midterm Outcomes in a Pooled Cohort of Harmony Transcatheter Pulmonary Valve Recipients. Circ Cardiovasc Interv. 2025 Sep;18(9):e015196. doi: 10.1161/CIRCINTERVENTIONS.125.015196. Epub 2025 Jul 16.

    PubMed 40665900
  • Gillespie MJ, Bergersen L, Benson LN, Weng S, Cheatham JP. 5-Year Outcomes From the Harmony Native Outflow Tract Early Feasibility Study. JACC Cardiovasc Interv. 2021 Apr 12;14(7):816-817. doi: 10.1016/j.jcin.2021.01.046. No abstract available.

    PubMed 33826508
  • Benson LN, Gillespie MJ, Bergersen L, Cheatham SL, Hor KN, Horlick EM, Weng S, McHenry BT, Osten MD, Powell AJ, Cheatham JP. Three-Year Outcomes From the Harmony Native Outflow Tract Early Feasibility Study. Circ Cardiovasc Interv. 2020 Jan;13(1):e008320. doi: 10.1161/CIRCINTERVENTIONS.119.008320. Epub 2020 Jan 9.

    PubMed 32525412

Questions about this trial

What is this clinical trial studying?

A study testing Native Outflow Tract TPV in people with Congenital Heart Disease and Tetralogy of Fallot, run by Medtronic Heart Valves at 3 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 13 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 7 Aug 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States, Canada. 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?

Measurement of radial, linear and axial compression, bending and torsion of device (time frame: 4 Days Post-Implant). 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 NCT01762124, which also lists 3 linked publications.

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 7 Aug 2020.

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