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Heart valve repair showdown: which surgery works best?

NCT ID NCT03674593

Disease control Sponsor: Tomsk National Research Medical Center of the Russian Academy of Sciences Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares two surgical techniques to fix a leaky mitral valve caused by degenerative disease. One method replaces the tiny chords that support the valve, while the other moves existing chords to a better position. The trial will follow 64 adults for one year after surgery to see which approach reduces leakage more effectively.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Mitral valve chordae prosthesis and chordae translocation (surgical procedures)
What this could lead to
If successful, this study could show which surgical method is more effective at repairing the mitral valve and reducing leakage long-term.
What could go wrong
This is a small, single-center study with only 64 participants, so results may not apply to all patients. Surgery always carries risks like infection or bleeding.

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

64 people

The number who actually took part.

Started

Jul 2018

Expected to finish

Dec 2026

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Isolated type II mitral valve insufficiency by A. Carpentier 2. Mitral regurgitation degree \>2 3. Age \>18 years 4. Signed informed consent to participate in the study Exclusion Criteria: 1. Any other cardiac surgeries 2. Age \<18 years 3. Multiple organ failure 4. ReDo procedure 5. Persistent atrial fibrillation 6. Acute infective endocarditis 7. Refusal to sign informed consent

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Conditions

The condition(s) this trial relates to.

mitral valve disorder mitral valve prolapse

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Degenerative mitral valve disease

Contacts and locations

Locations

  • Cardiology Research Institute, Tomsk NRMC

    Tomsk, 634012, Russia

More trials for these conditions

Other studies related to the condition(s) this trial covers.