Clinical trial Recruiting at 1 site Interventional

Comparing two methods for repairing mitral regurgitation

Official title: A Randomized Clinical Trial of Transcatheter Edge-to-edge Repair for Mitral Regurgitation Under Fully Echocardiographic Guidance Compared with Under Combined Guidance of Both Echocardiography and Fluoroscopy (ECHO-CLIP Study)

Run by Chinese Academy of Medical Sciences, Fuwai Hospital · NCT06684171 · Data updated 2026-11-12

This study is testing whether using only ultrasound guidance for a heart repair procedure is as effective and safe as using both ultrasound and X-ray for older adults with mitral regurgitation.

Quick facts

Study typeInterventional
SexAll
Enrollment200 (estimated)
SponsorChinese Academy of Medical Sciences, Fuwai Hospital
Academic / other
Drugs / interventionsradiation
Locations1 site (Shenzhen, Guangdong)
StatusRecruiting
StartedMarch 29, 2024
Main results expectedJuly 1, 2026
Study endsOctober 31, 2026
Registry record updatedNovember 12, 2024
Trial IDNCT06684171 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include symptomatic patients with significant mitral regurgitation who are at high surgical risk.

Probably not a fit

Patients with recent myocardial infarction or those requiring other concurrent cardiac procedures may not benefit from this study.

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

What this trial studies

This study evaluates the effectiveness of transcatheter edge-to-edge repair (TEER) for mitral regurgitation using echocardiographic guidance alone versus a combination of echocardiography and fluoroscopy. Mitral regurgitation is a common heart condition, particularly in older adults, and the study aims to reduce radiation exposure associated with the conventional method. Participants will be randomly assigned to one of the two procedural approaches to assess outcomes and efficacy. The study is designed to confirm the safety and effectiveness of a fully echo-guided TEER procedure.

Why it matters

Potential benefit: If successful, this study could lead to a safer and less invasive treatment option for patients with mitral regurgitation.

How similar studies have gone: Previous studies have shown success with TEER procedures, but this specific approach using only echocardiographic guidance is novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

\*Subjects meet either the first or second inclusion criteria in combination with the third and fourth ones were eligible.

1. Symptomatic DMR subjects with MR ≥ 3+ at high surgical risk in terms of STS Predicted Risk of Mortality replacement score ≥ 8 or STS Predicted Risk of Mortality repair score ≥ 6.\*
2. FMR subjects with LVESD ≤ 70 mm and MR ≥ 3+, despite administration of GDMT for 30 days.\*
3. MV anatomy appropriate for TEER procedure.
4. Subjects willing to participate in this study and complete the follow-up on schedule after obtaining informed consent.

Exclusion Criteria:

1. Myocardial infarction within 12 weeks prior to randomization.
2. Need for concurrent other cardiac procedures.
3. Any endovascular intervention or surgery within 30 days prior to randomization.
4. LVEF \< 20%.
5. MV orifice area \< 4.0 cm2.
6. Pulmonary artery systolic pressure \> 70 mmHg, as determined by echocardiogram.
7. Severe mitral annular calcification.
8. Unsuitable MV anatomy potentially precluding clip implantation: leaflet calcification or significant leaflet cleft in the grasping zone.
9. Previous MV surgery or current implanted ventricular assist device or current implanted mechanical prosthetic valve.
10. Any intracardiac mass, thrombus, or vegetation, as evidenced by echocardiogram.
11. Active endocarditis or rheumatic heart disease.
12. History of DVT or PE.

Abbreviations: DMR, degenerative mitral regurgitation; MR, mitral regurgitation; STS, Society of Thoracic Surgeons; FMR, functional mitral regurgitation; LVESD, left ventricular end-systolic diameter; GDMT, guideline-directed medical therapy; TEER, transcatheter edge-to-edge repair; LVEF, left ventricular ejection fraction; MV, mitral valve; DVT, deep venous thrombosis; PE, pulmonary embolism.

Where it's running

  • Fuwai Hospital Chinese Academy of Medical Sciences Shenzhen
    Shenzhen, Guangdong, China
    Recruiting

Study contacts

Similar studies

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

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  • GeminiOne transcatheter edge-to-edge repair for severe symptomatic mitral regurgitation

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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.