New heart valve repair without open surgery: could it help High-Risk patients?
NCT ID NCT06700239
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests a new device called the MIA-T system, which is inserted through a catheter to repair the tricuspid valve in people with severe leakage. The trial will enroll 600 patients who are too high-risk for traditional surgery. The goal is to see if the device safely improves symptoms, reduces hospitalizations, and lowers the risk of death.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- MIA-T device (a catheter-based implant to repair the tricuspid valve)
- What this could lead to
- If successful, this could offer a safer, less invasive option for people with severe tricuspid regurgitation who cannot have open-heart surgery, potentially reducing hospitalizations and improving survival.
- What could go wrong
- This is a large but early-stage pivotal trial; the device may not work as well as hoped, and risks include heart-related complications, kidney failure, or infection. Long-term benefits are not yet proven.
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
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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
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About 600 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Dec 2025
An estimate. Start dates often move.
- Expected to finish
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Dec 2032
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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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: * Subject has severe functional TR (≥ 3). Note: If any cardiac procedure(s) occur after eligibility was determined, TR severity will need to be re-assessed 30 days after any cardiac procedure(s) * In the judgment of the site's local heart team patient is at intermediate or greater risk for morbidity \& mortality with tricuspid valve surgery, and has been adequately treated per applicable standards with optimized medical therapy for the treatment of TR (e.g. diuretics) and stable for at least 30 days prior to enrollment. * New York Heart Association (NYHA) Functional Class II, III or ambulatory class IV Exclusion Criteria: * Systolic pulmonary artery pressure (sPAP) \> 70 mmHg or \> 5 wood units (WU) despite vasodilator therapy * Severe uncontrolled hypertension Systolic Blood Pressure (SBP) ≥ 180 mmHg and/or Diastolic Blood Pressure (DBP) ≥ 110 mm Hg * Previous tricuspid valve repair or replacement (transcatheter or surgical approach) * Subjects with concomitant left-sided valve disease will have the option of receiving a left-sided intervention (e.g. TMVR or TAVR) and waiting 60 days prior to being reassessed for the study * Myocardial infarction (MI), known unstable angina, symptomatic coronary artery disease (CAD) where revascularization is possible within 60 days prior to enrollment * Anatomy that precludes safe placement of anchors around the annulus * Hemodynamic instability defined as systolic pressure \< 90 mmHg requiring pressor support within the last 30 days Echo Criteria - * Subject has severe functional TR (determined by the ICL). Note: If any cardiac procedure(s) occur after eligibility was determined, TR severity will need to be re-assessed 30 days after any cardiac procedure(s) * No presence of Cardiac Implantable Electronic Devices (CIED) leads causing the TR * No significant annular calcification * Left Ventricular Ejection Fraction (LVEF) ≥ 20%
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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.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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.
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Lung and liver scans could map hidden heart valve disease
- Jugular vein approach tested for replacing leaky heart valve without open surgery
- Pacemaker showdown: which device spares the Heart's valve?
- Can a tiny heart implant fix a leaky valve without surgery?
- Can a catheter valve replace Open-Heart surgery for a leaky heart valve?
- A new Catheter-Based valve could fix a leaky heart valve without surgery