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Mitral Valve InsufficiencyNCT02428010

Twelve Transcatheter Mitral Valve Replacement (TMVR) Pilot Study

A study testing TMVR Implant in people with Mitral Valve Insufficiency, run by Medtronic Cardiovascular at 1 site in Poland.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Study to evaluate the safety and performance of the Twelve TMVR System Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Mitral Valve Insufficiency
What is being tested?
TMVR Implant
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
3 participants
Where
1 sitePoland
Study dates
Sep 2014to Apr 2021
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

  • Severe mitral regurgitation (MR Grade 3-4+)
  • Symptomatic mitral regurgitation (NYHA Class II-IV)
  • Trans-apical access deemed feasible by the treating physician
  • Native mitral valve geometry and size compatible with the Twelve TMVR

Who cannot join

  • Left ventricular ejection fraction (LVEF) < 20
  • Evidence of intracardiac mass, thrombus, or vegetation
  • Prior valve surgery or need for other valve surgery
  • Prior stroke within 4 weeks
  • Need for coronary revascularization
  • History of, or active, endocarditis
  • Renal insufficiency (Creatinine > 2.5 mg/dL)

Trial locations and contacts

1 site in 1 country.

Poland1 site
  • John Paul II Hospital

    Krakow

Other trials in Poland

About this study

Official title: Evaluation of Safety and Performance of the Twelve Transcatheter Mitral Valve Replacement System in Patients With Severe, Symptomatic Mitral Regurgitation

Study to evaluate the safety and performance of the Twelve TMVR System

Read the detailed description

The study is a prospective, multi-center, non-randomized trial to evaluate the safety and performance of the Twelve TMVR System in very high risk patients with severe, symptomatic mitral regurgitation.

Being tested
TMVR Implant
Medical subject headings
Mitral Valve Insufficiency

What participants receive

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

  • TMVR ImplantDevice

    Implantation of the Twelve TMVR System

Study groups in NCT02428010
Study groupRoleWhat they receive
TreatmentExperimentalTMVR Implant
Receives: Device: TMVR Implant

What is being measured

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

  1. Adverse Events

    Number of patients with adverse events associated with the delivery and/or implantation of the device

    Measured: 30 days

Secondary outcomes (2)
  1. Procedural Success

    Number of patients with successful TMVR implant

    Measured: Through 5 years

  2. Reduction of MR

    Number of patients with a reduction of MR Grade

    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 posted28 Apr 2015 (estimated)
  2. Study startSep 2014
  3. Primary completionApr 2021
  4. Study completionApr 2021

Why it stopped: Site has not reliably responded Medtronic team since the transition from sponsor Twelve. No data entry completed since February 2018. Last study subject passed final study visit window. No data is expected to be entered.

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
3 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02428010
Sponsor's protocol ID
CIP-1402
Status last verified
Apr 2021
First submitted
23 Apr 2015
Last updated
4 May 2021
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing TMVR Implant in people with Mitral Valve Insufficiency, run by Medtronic Cardiovascular at 1 site in Poland.

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 7 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: stopped early, as of the sponsor's last update on 4 May 2021. 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 Poland. 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 stopped early (reason given: Site has not reliably responded Medtronic team since the transition from sponsor Twelve. No data entry completed since February 2018. Last study subject passed final study visit window. No data is expected to be entered.). Results are not available in the source record.

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?

Adverse Events (time frame: 30 days). 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 4 May 2021; AzTrials last refreshed its copy on 31 Oct 2026.

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