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Mitral InsufficiencyNCT05625607

Polish Transcatheter Transfemoral Mitral Valve-in-Valve Implantation (Mitral ViV) Registry

An observational study of Mitral Insufficiency and Mitral Stenosis, run by Medical University of Warsaw at 7 sites in Poland.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

In recent years increasing number of mitral bioprosthesis implantation, especially in elderly population, is observed. Bioprosthetic valves are associated with a lower risk of thrombotic and bleeding adverse events compared with mechanical prostheses, but their use is limited due to their durability. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Transcatheter mitral valve-in-valve implantation
Type of treatment
Surgery or procedure
How many people
100 participants
Where
7 sitesPoland
Study dates
17 Oct 2022to 31 May 2026
How long will I take part?
1 Year
Phase
Observational
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

Study population: Polish patients with failed surgically implanted mitral bioprosthetic valves, qualified by decision of the Heart Team to TMVR. All patients meeting inclusion criteria will prospectively included in the study. Patients meeting inclusion criteria before the set-up of registry will be included retrospectively.

Who may be able to join

  • Failing surgically implanted mitral bioprosthetic valve demonstrating ≥ moderate stenosis and/or ≥ moderate insufficiency
  • Qualification for TMVR by decision of the local Heart Team
  • Patient provided written informed consent

Who cannot join

  • Disqualification from TMVR

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

Poland7 sites, 7 recruiting
  • Medical University of Białystok

    Bialystok, 15-089

    Paweł Kralisz, MD, PhD, +48 85 746 84 96, kki@umb.edu.pl

    Recruiting
  • Medical University of Gdańsk

    Gdansk, 80-210

    Dariusz Jagielak, MD, PhD, +48 58 584 42 00, kardchir@gumed.edu.pl

    Recruiting
  • Medical University of Silesia

    Katowice, 40-055

    Wojciech Wojakowski, MD,PhD, +48 32 359 86 90, kk3@gcm.pl

    Recruiting
  • Medical University of Łódź

    Lodz, 90-419

    Andrzej Walczak, MD, PhD, +48 42 201 44 60, poczta@csk.umed.pl

    Recruiting
  • Medical University of Opole

    Opole, 45-052

    Jerzy Sacha, MD, PhD, +48 77 45 20 660, kardiologia@usk.opole.pl

    Recruiting
  • Medical University of Warsaw

    Warsaw, 02-091

    Maciej Mazurek, MD, +48 510265843, maciej.j.mazurek@gmail.com

    Zenon Huczek, MD, PhD

    Recruiting
  • Institute of Cardiology

    Warsaw, 04-628

    Adam Witkowski, MD, PhD, +48 22 343 43 42, kchw@ikard.pl

    Marcin Demkow, MD, PhD

    Recruiting

Other trials in Poland

About this study

Official title: Evaluation of Clinical Outcomes of Transcatheter Transfemoral Mitral Valve-in-Valve Implantation in Polish Population- Observational Multicenter Registry

In recent years increasing number of mitral bioprosthesis implantation, especially in elderly population, is observed. Bioprosthetic valves are associated with a lower risk of thrombotic and bleeding adverse events compared with mechanical prostheses, but their use is limited due to their durability. After years numerous patients may develop bioprosthesis failure, requiring valve reintervention. Significantly burdened ones are oftentimes disqualified or not referred to surgery redo. An emerging treatment method for these patients is transcatheter mitral valve-in-valve implantation as an alternative to re-operation. This technique is applied with the use of devices previously dedicated to transcatheter aortic valve implantation (TAVI). Recent papers prove that transcatheter mitral valve replacement (TMVR) is a safe and effective procedure when performed in a selected group of high-surgical-risk patients. However, data regarding the Polish population are limited. Therefore, the aim of the study is to create a nationwide registry, collecting data from all Polish centers performing TMVR in order to describe the population of patients developing mitral bioprosthesis failure, evaluate their follow-up after TMVR as well as results of the transcatheter valvular intervention and identify potential limitations of the procedure.

Being tested
Transcatheter mitral valve-in-valve implantation
Keywords
Transcatheter mitral valve replacement, Transcatheter mitral valve implantation, Mitral valve-in-valve, Mitral valve insufficiency, Mitral stenosis, Mitral regurgitation, Bioprosthesis failure, Left ventricle outflow tract obstruction
Medical subject headings
Mitral Valve Insufficiency, Mitral Valve Stenosis, Heart Failure

What participants receive

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

  • Transcatheter mitral valve-in-valve implantationProcedure or surgery

    Transcatheter transfemoral mitral valve-in-valve implantation is an alternative for surgery redo in high-surgical-risk patients with bioprosthetic valve failure. The procedure is performed via femoral vein access. By the transseptal puncture (in the postero-inferior part of the interatrial septum) and balloon septostomy, the bioprosthetic valve is introduced through the degenerative valve into the left ventricle. The valve is expanded in the mitral position during rapid ventricle pacing.

What is being measured

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

  1. Rate of all-cause mortality

    Endpoint described as n=x (y%).

    Measured: 1 year

  2. Rate of hospitalization

    Hospitalization for valve-related symptoms or worsening congestive heart failure.

    Endpoint described as n=x (y%).

    Measured: 1 year

  3. Rate of neurological events

    All stroke, transient ischemic attack (TIA). Endpoint described as n=x (y%).

    Measured: 1 year

  4. Rate of myocardial infarction

    Endpoint described as n=x (y%).

    Measured: 1 year

  5. Rate of valve-related dysfunction

    Mean transvalvular gradient ≥5mmHg; ≥mitral regurgitation; ≥mild paravalvular leak; left ventricle outflow tract obstruction (LVOTO)- (acute hemodynamic deterioration associated with imaging evidence of LVOTO; mean LVOT pressure gradient increasement ≥10 mmHg compared to the baseline value).

    Endpoint described as n=x (y%).

    Measured: 1 year

Secondary outcomes (4)
  1. Rate of technical success

    Absence of procedural mortality; successful access, delivery, and retrieval of the device delivery system; successful deployment and correct positioning of the first intended device; freedom from emergency surgery or reintervention related to the device or access procedure.

    Endpoint described as n=x (y%).

    Measured: at 24 hours

  2. Rate of device success

    Absence of procedural mortality or stroke; proper placement and positioning of the device; freedom from unplanned surgical or interventional procedures related to the device or access procedure; continued intended safety and performance of the device.

    Endpoint described as n=x (y%).

    Measured: 30 days, 6 month, 1 year

  3. Rate of procedural success

    Device success (either optimal or acceptable), and absence of major device or procedure related serious adverse events, including:

    1. Death B. Stroke C. Life-threatening bleeding (Mitral Valve Academic Research Consortium scale) D. Major vascular complications E. Major cardiac structural complications F. Stage 2 or 3 acute kidney injury (includes new dialysis) G. Myocardial infarction or coronary ischaemia requiring PCI or CABG H. Severe hypotension, heart failure, or respiratory failure requiring intravenous pressors or invasive or mechanical heart failure treatments such as ultrafiltration or hemodynamic assist devices, including intra-aortic balloon pumps or left ventricular or biventricular assist devices, or prolonged intubation for ≥48 h.
    2. Any valve-related dysfunction, migration, thrombosis, or other complication requiring surgery or repeat intervention Endpoint described as n=x (y%).

    Measured: 30 days

  4. Rate of patient success

    1. Device success; II. Patient returned to the pre-procedural setting; III. No rehospitalizations or reinterventions for the underlying condition; IV. Improvement from baseline in symptoms; improvement by ≥1 functional class in New York Heart Association scale. Nominal values from I to IV, where higher value indicates worse outcome; V. Improvement from baseline in functional status; improvement by ≥50 m in 6-min walk test. Continuous values in meters, where higher value indicates better outcome; VI. Improvement from baseline in quality-of-life; improvement by ≥10 in Kansas City Cardiomyopathy Questionnaire. Scores are scaled from 0 to 100, where higher value indicates better outcome.

    Endpoint described as n=x (y%).

    Measured: 1 year

Timeline

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

  1. First posted23 Nov 2022
  2. Study start17 Oct 2022
  3. Primary completion31 Dec 2025 (estimated)
  4. Study completion31 May 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
100 participants (estimated)
Target duration
1 Year
IDs, dates and publications
ClinicalTrials.gov ID
NCT05625607
Sponsor's protocol ID
WUM-MViV
Status last verified
Nov 2022
First submitted
2 Nov 2022
Last updated
23 Nov 2022
Results posted
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • Stone GW, Adams DH, Abraham WT, Kappetein AP, Genereux P, Vranckx P, Mehran R, Kuck KH, Leon MB, Piazza N, Head SJ, Filippatos G, Vahanian AS; Mitral Valve Academic Research Consortium (MVARC). Clinical trial design principles and endpoint definitions for transcatheter mitral valve repair and replacement: part 2: endpoint definitions: A consensus document from the Mitral Valve Academic Research Consortium. Eur Heart J. 2015 Aug 1;36(29):1878-91. doi: 10.1093/eurheartj/ehv333. Epub 2015 Jul 13.

    PubMed 26170468

Questions about this trial

What is this clinical trial studying?

An observational study of Mitral Insufficiency and Mitral Stenosis, run by Medical University of Warsaw at 7 sites 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 3 inclusion and 1 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: status not confirmed, as of the sponsor's last update on 23 Nov 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites 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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Rate of all-cause mortality (time frame: 1 year). The study lists 5 primary outcomes in all. 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 NCT05625607, which also lists 1 linked publication.

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 23 Nov 2022; AzTrials last refreshed its copy on 8 Nov 2026.

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