Which heart valve design wins for small aortic openings?
NCT ID NCT07794306
First seen Aug 31, 2026 · Last updated Sep 01, 2026 · Updated 1 time
Summary
This trial compares two types of replacement heart valves used in a procedure called TAVI for people with severe aortic valve stenosis and a small aortic annulus. The two valves are the Meril Octapro+ and the Abbott Navitor. Researchers want to see which design provides better safety and heart function after the procedure, and which may be easier to replace in the future if the valve wears out. The study enrolls adults who are suitable for both valve types.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Two types of transcatheter aortic valve replacement (TAVI) devices: the Meril Octapro+ THV System and the Abbott Navitor/Navitor Vision THV system
- What this could lead to
- If this trial succeeds, it could identify which TAVI valve design works best for people with small aortic annuli, improving heart function and reducing complications, and potentially making future valve-in-valve procedures easier.
- What could go wrong
- This is a randomized trial, but the results may not apply to all patients. There are risks of bleeding, stroke, or needing a pacemaker after the procedure. The trial does not yet have long-term data on valve durability.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
About 510 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
-
Oct 2026
An estimate. Start dates often move.
- Expected to finish
-
Dec 2033
An estimate. End dates often move.
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 years and older
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Participants 18 years of age or older * Heart team consensus that isolated transfemoral TAVI is medically justified and advisable * Diagnosis of severe symptomatic aortic valve stenosis and aortic annulus ≤ 430 mm² as seen in preoperative CT diagnostic * Anatomy is suitable for both BE and SE THVs according to Heart Team judgement * Participant provided written informed consent to participate in the trial * Ability of participant to understand patient information and to personally sign and date informed consent to participate in trial, before performing any trial-related procedures * Participant and treating physician agree that participant will return for all required postprocedural follow-up visits Exclusion Criteria: * Uni- or bicuspid aortic valve pathology * Severe Left ventricular outflow tract (LVOT) calcification with prohibitive risk for BE THV as determined by heart team * Non-calcified aortic valve pathology or endocarditis * Expected life expectancy \<12 months due to associated non-cardiac comorbidities * Currently participating in another investigational drug or device trial * Urgent or emergency TAVI
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Aortic valve stenosis are added.
By submitting, you agree to our Terms of use
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
-
The places running it
1 site. The list below names each one and where it is.
-
The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
-
A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
-
University Medical Center Hamburg-Eppendorf (UKE), University Heart and Vascular Center Hamburg
Hamburg, Free and Hanseatic City of Hamburg, 20249, Germany
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- One scan to rule them all? new CT aims to replace multiple heart tests
- Can a less invasive valve replacement tame a failing aortic valve?
- Can a new heart valve match the safety of proven ones?
- Can a single stitch beat a double closure for TAVI patients?
- Can a fitness app boost recovery after heart valve replacement?
- A new heart valve without Open-Heart surgery: can it help High-Risk patients?