Clinical trial Recruiting at 4 sites Observational Ages 18 and up

Portuguese Myval transcatheter aortic valve registry

Official title: Portuguese Registry With Meril Myval THV Series - MyPORTuVal Registry

Run by Portuguese Association of Interventional Cardiology · NCT06818435 · Data updated 2026-11-12

This project will try the Myval transcatheter heart valve in adults with symptomatic severe aortic stenosis who are having a TAVI procedure to see how safe and effective it is.

More Aortic Valve Stenosis trials

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment150 (estimated)
SponsorPortuguese Association of Interventional Cardiology
Academic / other
Locations6 sites (Carnaxide and 5 other locations)
StatusRecruiting
StartedMay 13, 2025
Main results expectedMay 2028
Study endsNovember 2028
Registry record updatedJanuary 16, 2026
Trial IDNCT06818435 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (18+) with symptomatic severe native aortic stenosis who are planned for TAVI with the Myval THV by the Heart Team and can give informed consent and attend follow-up are ideal candidates.

Probably not a fit

Patients with active infection, major allergies to device or required medications, significant liver failure (Child-Pugh B/C), pregnant or lactating women, or those judged by the investigator as unsafe for participation are unlikely to benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a prospective, single-arm, multicenter registry enrolling adults with symptomatic severe native aortic valve stenosis treated with the Myval transcatheter heart valve (THV) via TAVI. Patients are screened and selected by a local Heart Team, provide informed consent, and undergo the TAVI procedure using the Myval THV series. Clinical and safety outcomes are collected at the participating Portuguese centers and during scheduled follow-up visits. The registry is observational and aims to document real-world performance and adverse events associated with the device.

Why it matters

Potential benefit: If successful, the registry could show that the Myval valve is a safe and effective TAVI option that may improve symptoms and avoid open-heart surgery for some patients.

How similar studies have gone: TAVI as a technique has extensive supporting evidence, and prior registries and studies of Myval and similar THV devices have reported promising safety and performance, though data continue to be collected.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Patient over the age of 18 years with symptomatic aortic stenosis (severe AS), intended to perform TAVI procedure using Myval THV series as assessed by Heart Team.
2. Patient has provided written informed consent as approved by the Ethics Committee (EC)
3. Patient is willing to undergo all registry procedures and follow-up requirements

Exclusion Criteria:

1. Patients with hyper sensitivity or allergy to aspirin, heparin, clopidogrel, ticlopidine, cobalt, nickel, chromium, molybdenum or any contrast media.
2. Ongoing infective endocarditis or any similar infection.
3. Pregnant or lactating females.
4. Liver failure (Child-Pugh Class B or C)
5. Patient is currently participating in another clinical investigation where the primary endpoint has not been achieved.
6. Any condition, which in the investigator opinion, would preclude safe participation of the patient in the Registry.

Where it's running

  • Unidade Local de Saúde do Lisboa Ocidental E.P.E. - Hospital Santa Cruz
    Carnaxide, Portugal
    Recruiting
  • Unidade Local de Saúde de Coimbra
    Coimbra, Portugal
    Recruiting
  • Unidade Local de Saúde Alentejo Central E.P.E. - Hospital Espírito Santo
    Evora, Portugal
    Recruiting
  • Unidade Local de Saúde de Santa Maria, E.P.E. - Hospital de Santa Maria
    Lisbon, Portugal
    Recruiting
  • Unidade Local de Saúde de São José E.P.E. - Hospital Santa Marta
    Lisbon, Portugal
    Not yet recruiting
  • Unidade Local de São João E.P.E.
    Porto, Portugal
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.