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NCT Number: NCT02322840

Transcatheter Mitral Valve Replacement System (TMVR) Pilot Study and The Early Feasibility Study of the TMVR Transseptal System

PILOT:

The study is a pilot trial to evaluate the safety and performance of the Twelve TMVR System in high risk mitral regurgitation patients.

EFS:

The study is an Early Feasibility Study to evaluate the safety and performance of the Medtronic Intrepid™ Transcatheter Mitral Valve Replacement System with Transfemoral Transseptal access in Patients with moderate-Severe or severe, Symptomatic Mitral Regurgitation

Active, Not Recruiting

This study is active but is not currently recruiting participants.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Monash Health - PILOT, Clayton, Victoria, Australia

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About this study

PILOT:

The study is a prospective, multi-center, non-randomized study to evaluate the safety and performance of The Intrepid™ TMVR System in patients with severe, symptomatic mitral regurgitation, who are at high risk for conventional mitral valve surgery.

EFS:

The study is a multi-center, prospective, non-randomized, trial to evaluate the safety and performance of the Medtronic Intrepid™ Transcatheter Mitral Valve Replacement System with Transfemoral Transseptal access in Patients with Moderate-Severe or Severe, Symptomatic Mitral Regurgitation

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Key Inclusion Criteria:

  • Severe mitral regurgitation (PILOT)
  • moderate-severe or severe mitral regurgitation (EFS)
  • Symptomatic mitral regurgitation (NYHA Class II-IV)
  • Deemed to be at high risk for conventional mitral valve surgery by the local heart team (including, at minimum, a cardiac surgeon, interventional cardiologist, and an echocardiologist) (PILOT and EFS)
  • Subjects anatomically suitable for the Intrepid TMVR delivery system, including transfemoral and transseptal access (EFS only)
  • Native mitral valve geometry and size compatible with the Intrepid™ TMVR (PILOT)

Key Exclusion Criteria:

  • Left ventricular ejection fraction (LVEF) < 20 (PILOT) or <30% (EFS)
  • Evidence of intracardiac mass, thrombus, or vegetation
  • Prior valve surgery or need for other valve surgery
  • Prior stroke within 30 days (PILOT) or 90 days (EFS)
  • Gastrointestinal bleeding within 6 months (PILOT)
  • Prior myocardial infarction 90 days (EFS)
  • Need for coronary revascularization
  • History of, or active, endocarditis if antibiotics are required (EFS)
  • Renal insufficiency; Serum Creatinine > 2.5 mg/dL (PILOT) or Creatinine Clearance <30 cc/min (EFS)

Treatment and study plan

Twelve TMVR Implant

Device

Implantation of the Twelve TMVR System - Apical

Other names: Medtronic Intrepid™ Transcatheter Mitral Valve Replacement System

Medtronic Intrepid™ Transcatheter Transfemoral Mitral Valve Replacement System

Device

Implantation of the Medtronic Intrepid™ Transcatheter Mitral Valve- Transfemoral

Other names: Medtronic Intrepid™ Transcatheter Mitral Valve Replacement System

Primary outcomes

  1. Percent of Subjects With Adverse Events

    Time frame: 30 days

    PILOT: Site Reported Serious Adverse Events Implant or Delivery Related Through 30-Days EFS: Implant, Delivery or device related serious adverse events through 30 days post procedure

Secondary outcomes

  1. Number of Subjects With Procedural Success

    Time frame: Procedure

    PILOT: Successful access, delivery of implant, and retrieval of the delivery system EFS: Successful access, delivery of implant, and retrieval of the delivery system

  2. Change in Mitral Regurgitation (MR) From Baseline Through 30 Days

    Time frame: 30 days

    PILOT: Change in MR Grade from baseline measured by echo through 30 days post-procedure. Measured by Echo 30 days post procedure.

  3. Change in Mitral Regurgitation (MR) From Baseline Through 30 Days

    Time frame: Through 30 Days

    EFS: Change in MR Grade from Baseline measured by echo through 30 days post-procedure. Measured by Echo 30 days post procedure.

  4. Change in New York Heart Association (NYHA) From Baseline Through 30 Days

    Time frame: Through 30 days

    PILOT: Change in NYHA Class from Baseline through 30 days post-procedure.

  5. Change in New York Heart Association (NYHA) From Baseline Through 30 Days

    Time frame: Through 30 Days

    EFS: Change in NYHA Class from Baseline through 30 days post procedure

  6. Number of Subjects Without Mitral Valve Stenosis

    Time frame: Through 30 days

    PILOT: No significant mitral Valve (MV) Stenosis measured by echo through 30 days post-procedure EFS: No Significant Mitral Valve (MV) Stenosis measured by echo through 30 days post-procedure

  7. Number of Subject With Left Ventricle Output Tract (LVOT) Patency

    Time frame: Through 30 days

    PILOT: LVOT patency measured by echo through 30 days post-procedure.

  8. Percent of Subject With Left Ventricular Outflow Tract (LVOT) Patency

    Time frame: 30 Days post procedure

    EFS: Left Ventricular Outflow Tract (LVOT) Patency measured by echo through 30 days post-procedure

  9. Number of Subjects With Greater Than or Equal Moderate (2+) Mitral Regurgitation at 30-days

    Time frame: Through 30 days

    PILOT: Number of subjects with a core lab-evaluated mitral regurgitation grade greater than or equal to moderate at 30-days

Sponsors and collaborators

Lead sponsor

Medtronic Cardiovascular

Industry

Registry information

Official study title

An Initial Evaluation of the Safety and Performance of the Transcatheter Mitral Intrepid Valve Replacement System in Patients With Severe, Symptomatic Mitral Regurgitation

Important dates

Study start
2015
Primary completion
2022
Study completion
2028
First posted
Dec 23, 2014
Registry last updated
Jan 14, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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