Clinical trial Recruiting at 3 sites Interventional Ages 65 and up

Evaluation of a new transcatheter mitral valve replacement device

Official title: Evaluation of the Efficacy and Safety of the Mi-thos® Transcatheter Mitral Valve Replacement System in Patients with Severe Mitral Valve Disease At High Surgical Risk.

Run by Shanghai NewMed Medical Co., Ltd. · NCT04195984 · Data updated 2026-11-12

This study is testing a new heart valve replacement device to see if it can safely help people with severe mitral valve problems who can't have regular surgery.

Quick facts

Study typeInterventional
Ages65 Years and up
SexAll
Enrollment122 (estimated)
SponsorShanghai NewMed Medical Co., Ltd.
Industry-sponsored
Locations3 sites (Beijing, Beijing Municipality and 2 other locations)
StatusRecruiting
StartedMarch 25, 2021
Main results expectedMay 2026
Study endsJanuary 2027
Registry record updatedFebruary 13, 2025
Trial IDNCT04195984 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are patients aged 65 and older with severe mitral valve regurgitation who are deemed high risk for open surgery.

Probably not a fit

Patients who have had previous mitral valve surgery or those with severe comorbidities such as untreated coronary artery disease or severe right heart failure 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 clinical trial evaluates the safety and performance of the Mi-thos® Mitral Heart Valve using a transapical delivery system in patients with severe mitral valve regurgitation. It is a multicenter, single-arm, prospective study designed to assess the outcomes of this innovative valve replacement approach. The study aims to enroll patients who are at high surgical risk and are not candidates for traditional open-heart surgery. Participants will be monitored for safety and effectiveness following the procedure.

Why it matters

Potential benefit: If successful, this study could provide a less invasive treatment option for patients with severe mitral valve regurgitation who are at high surgical risk.

How similar studies have gone: Other studies involving transcatheter mitral valve replacement have shown promising results, indicating that this approach may be effective for high-risk patients.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Severe mitral valve regurgitation ≥ 3+;
* High surgical risk fot open mitral valve surgery;
* Age ≥ 65 years old;
* Life expectancy \> 12 months;
* As assessed by multidisciplinary cardiac team, patients who are not eligible for surgery;
* Patients sign an informed consent form.

Exclusion Criteria:

* Previous cardiac mitral valve surgery;
* Active infections requiring antibiotic therapy;
* Clinically significant untreated Coronary Artery Disease (CAD);
* Pulmonary hypertension (Pulmonary systolic pressure \> 70 mmHg);
* Patients with severe right heart failure;
* Left ventricular ejection fraction \<25%;
* Diagnosis of hypertrophic cardiomyopathy, restrictive cardiomyopathy, constrictive pericarditis;
* Dialysis patient;
* Patients with severe coagulopathy;
* Patients with contraindications to anticoagulant drugs;
* Patients with stroke or transient ischemic within 30 days;
* Echocardiography found any intracardiac mass, left ventricle or atrial thrombus;
* Patients who require surgery or interventional therapy for other valvular lesions;
* Patients with severe macrovascular disease requiring surgical treatment;
* Patients with more than 70% of carotid stenosis;
* To be allergic to contrast agents, nickel-titanium memory alloys or bovine-derived products;
* Patients with severe neurological disorders affecting cognitive ability;
* Patients with severe thoracic deformities.

Where it's running

  • Fuwai hospital
    Beijing, Beijing Municipality, China
    Recruiting
  • Zhongshan Hospital
    Shanghai, Shanghai Municipality, China
    Recruiting
  • Xijing hospital
    Xi’an, Shanxi, China
    Recruiting

Study contacts

  • Principal investigator: Wang chunsheng, Chief — Shanghai Zhongshan Hospital
  • Study coordinator: Wang chunyang, CRA
  • Email: cywang@newmed.cn
  • Phone: (86)-21-20788668

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.