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 type | Interventional |
|---|---|
| Ages | 65 Years and up |
| Sex | All |
| Enrollment | 122 (estimated) |
| Sponsor | Shanghai NewMed Medical Co., Ltd. Industry-sponsored |
| Locations | 3 sites (Beijing, Beijing Municipality and 2 other locations) |
| Status | Recruiting |
| Started | March 25, 2021 |
| Main results expected | May 2026 |
| Study ends | January 2027 |
| Registry record updated | February 13, 2025 |
| Trial ID | NCT04195984 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
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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.
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How TAVI and M‑TEER affect sleep‑disordered breathing
This will see if adults with aortic stenosis or mitral regurgitation who undergo TAVI or M‑TEER have improvements in sleep‑disordered breathing six months after their procedure.
-
Mitral and Tricuspid Valve-in-Valve/Valve-in-Ring Registry in Asia-Pacific
This registry tracks people in Asia-Pacific who have had or will have valve-in-valve or valve-in-ring procedures for mitral or tricuspid valve disease to learn about outcomes and safety after these transcatheter approaches.
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Evaluating heart recovery after surgery for aortic regurgitation
This study looks at how heart surgery for aortic regurgitation helps people with heart problems feel better and recover by checking their heart function and quality of life afterward.
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Evaluation of the AltaValve System for treating mitral regurgitation
This study is testing a new device called the AltaValve System to see if it can help people with mitral regurgitation who can't have surgery feel better and improve their heart function.
-
Registry for MitraClip treatment of severe mitral valve regurgitation
This study is testing how well the MitraClip G4 device works and is safe for people with severe mitral valve leakage who are getting a specific type of heart repair.
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New treatment for severe mitral valve insufficiency using a transcatheter valve system
This study is testing a new, less invasive heart valve replacement for older adults with severe mitral valve problems who can't have regular surgery.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.