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Transcatheter Mitral Valve InterventiOn Single Center Registry in CHinese Patients With Mitral Valve Disease (TORCH-M)

Not Applicable
Recruiting
Conditions
Mitral Valve Disease
Interventions
Device: transcatheter mitral valve repair/transcatheter mitral valve replacement
Registration Number
NCT04954404
Lead Sponsor
Second Affiliated Hospital, School of Medicine, Zhejiang University
Brief Summary

The purpose of this study is to evaluate the safety and effectiveness of transcatheter mitral valve intervention in Chinese population with mitral valve disease.

Detailed Description

Prospective, single-arm, single-center clinical evaluation of transcatheter mitral valve intervention in subjects with mitral valve disease who are treated per standard of care and who have been determined by the local heart team as appropriate for interventional treatment. Eligible subjects will be treated by transcatheter mitral valve repair or transcatheter mitral valve replacement.

This single-arm registry will provide valuable new information regarding use of multiple mitral valve interventional devices and evaluate the safety and effectiveness of transcatheter mitral valve intervention in Chinese population with mitral valve disease.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
2000
Inclusion Criteria
  1. Patients with mitral valve disease, as determined by the site from a transthoracic echocardiogram (TTE), and in the judgment of the investigator intervention is likely to provide clinical benefit for the patient.
  2. Subject has been informed of the nature of the study, agrees to its provisions and has provided written informed consent.
  3. The subject agrees to comply with specified follow-up evaluations and to return to the investigational site where the procedure was performed.
  4. Patients are technical and anatomical eligible for interventions.
Exclusion Criteria
  1. In the judgment of the investigator, subjects are not anatomical eligible for interventions.
  2. Known hypersensitivity or contraindication to procedural medications which cannot be adequately managed medically.
  3. Active endocarditis or active rheumatic heart disease.
  4. History of severe bleeding diathesis or coagulopathy or subject will refuse blood transfusions.
  5. Subject has any kind of conditions that might prevent patients benefiting from therapeutic benefit (i.e., Severe mental illness) or life expectancy is less than one year.
  6. Subject has any kind of disorder per investigator's judgement that compromises his/her ability to give written informed consent and/or to comply with study procedures.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Transcatheter mitral valve repair/replacementtranscatheter mitral valve repair/transcatheter mitral valve replacement-
Primary Outcome Measures
NameTimeMethod
Composite outcomes of all-cause mortality and rate of rehospitalization related to heart failure.30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

Composite outcomes of all-cause mortality and rate of rehospitalization related to heart failure.

Secondary Outcome Measures
NameTimeMethod
Vascular complicationsPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Quality of life improvement30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

Improvement in quality of life from baseline to each follow-up measured by the Kansas City Cardiomyopathy Questionnaire (KCCQ).

Change of cognitive function30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

Change of cognitive function from baseline to each follow-up measured by the Mini-mental State Examination (MMSE).

Significant iatrogenic atrial septal defectPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

Number of patients reported as clinically significant iASD requiring ASD closure.

Effective regurgitant orifice areaPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Mean mitral valve gradientPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Rehospitalization related to heart failure30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

Number of patients readmission for recurrent Heart Failure.

StrokePredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Transient ischemic attackPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Brain lesionPredischarge

Number and volumes of new brain lesions detected by Magnetic Resonance Imaging (MRI) after procedure with or without clinical symptom.

All-cause mortalityPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

Death from any causes including both cardiovascular and non-cardiovascular.

Cardiovascular mortalityPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

Death from any cardiovascular events.

Myocardial infarctionPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Permanent pacemaker implantationPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Device successImmediately after procedure

Defined according to consensus document from the mitral valve academic research consortium (MVARC).

Infective endocarditisPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

Number of patients with infective endocarditis.

Bleeding eventsPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Recurrent hospitalization - All cause30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

Number of patients hospitalized for≥24h. Hospitalizations planned for pre-existing conditions are excluded unless there is worsening of the baseline condition according to MVARC.

Acute kidney injuryPredischarge, 30 days
New-onset atrial fibrillationPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Change of New York Heart Association functional classification30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

Change of NYHA status from baseline to each follow-up.

MR and/or MS severityPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

The change in MR and/or MS severity from baseline to each follow-up.

Modified Rankin scale score30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
6-min walk test30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

The change in 6-min walk test distance from baseline to each follow-up.

Reintervention of mitral valvePredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

Any conditions need reintervention or surgery, as device-related thrombosis, valve deterioration.

Device embolization or single leaflet device attachmentPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Regurgitant fractionPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Regurgitant volumePredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Mitral valve areaPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Left ventricular end-diastolic diameter (LVEDD)Predischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Left ventricular end-systolic diameter (LVESD)Predischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
BNP and/or NT-proBNP levelsPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Left ventricular ejection fraction (LVEF)Predischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Pulmonary artery systolic pressure (PASP)Predischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Right ventricular systolic pressure (RVSP)Predischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years
Left ventricular massPredischarge, 30 days, 6 months, 1 year, 2 years, 3 years, 5 years, 10 years

Trial Locations

Locations (1)

The Second Affiliated Hospital Zhejiang University School of Medicine.

🇨🇳

Hangzhou, Zhejiang, China

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