Mitral InsufficiencyNCT07019935
Afterload Mismatch Predictive modLE for Transcatheter Edge-to-Edge Repair (AMPLE-TEER)
An observational study of Mitral Insufficiency, run by Sun Yat-sen University at 1 site in China.
Trial summary
Mitral regurgitation (MR) is one of the most common valvular heart diseases in China, causing heart failure. Patients with moderate to severe MR have a very poor clinical prognosis if no intervention is performed. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Mitral Insufficiency
- How many people
- 1,000 participants
- Where
- 1 siteChina
- Study dates
- 1 Oct 2021to 1 Oct 2030
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Adult patients undergoing transcatheter mitral valve edge-to-edge repair (TEER) during hospitalization were enrolled.
Who may be able to join
- Patients undergoing transcatheter mitral valve edge-to-edge repair (TEER) during hospitalization.
- Aged over 18 yrs.
Who cannot join
- Patients unable to provide written consent.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
China1 site, 1 recruiting
- Recruiting
The First Affiliated Hospital of Sun Yat-sen University
Guangzhou, Guangdong
About this study
Official title: Afterload Mismatch Predictive modLE for Transcatheter Edge-to-Edge Repair (AMPLE-TEER Study)
Mitral regurgitation (MR) is one of the most common valvular heart diseases in China, causing heart failure. Patients with moderate to severe MR have a very poor clinical prognosis if no intervention is performed. When symptoms are still poorly controlled after guideline-directed medical therapy (GDMT) or when surgical intervention is not suitable, transcatheter mitral valve edge-to-edge repair (TEER) can improve the patient's quality of life and reduce the hospitalization rate and mortality rate. However, some patients develop into afterload mismatch (AM) after TEER, persistent adverse ventricular remodeling, and a high mortality rate, which limits the surgical benefits of TEER surgery in these MR patients. Therefore, how to scientifically predict AM and intervene as early as possible has become a research hotspot for optimizing the postoperative management of TEER patients. Afterload Mismatch Predictive modLE for Transcatheter Edge-to-Edge Repair (AMPLE-TEER) study is a prospective cohort study including adult patients undergoing TEER during hospitalization. We aim to evaluate whether the patients develop into AM after TEER, evaluate the prognostic risk factors of AM and construct a prognostic clinical model to guide clinical decision-making.
- Conditions
- Mitral Insufficiency
- Medical subject headings
- Mitral Valve Insufficiency
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Patients undergoing TEER | Adult MR patients undergoing TEER during hospitalization |
What is being measured
The primary outcome is the main question the study is designed to answer.
Afterload mismatch
The increase in the patient's left ventricular end-diastolic volume index (LVEDVi) after transcatheter mitral valve edge-to-edge repair (TEER) was 10% or more compared with before (dLVEDVi ≥10%).
Measured: Through study completion, an average of 5 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Jun 2025
- Study start1 Oct 2021
- Primary completion1 Oct 2030 (estimated)
- Study completion1 Oct 2030 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Mitral InsufficiencyStudies of the same condition, open and under way.
- More trials run by Sun Yat-sen UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 1,000 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Sun Yat-sen University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Xiao-dong Zhuang, Sun Yat-sen University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07019935
- Sponsor's protocol ID
- AMPLE-TEER study
- Status last verified
- Jun 2025
- First submitted
- 5 Jun 2025
- Last updated
- 13 Jun 2025
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 13 Jun 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Afterload Mismatch Predictive modLE for Transcatheter Edge-to-Edge Repair (AMPLE-TEER Study)
- ClinicalTrials.gov ID
- NCT07019935
- Acronym / sponsor ID
- AMPLE-TEER study
- Conditions
- Mitral Insufficiency
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 1,000 participants (estimated)
- Lead sponsor
- Sun Yat-sen UniversityUniversity, hospital or other
- Study start
- 1 Oct 2021 (actual)
- Primary completion
- 1 Oct 2030 (estimated)
- Study completion
- 1 Oct 2030 (estimated)
- First posted
- 13 Jun 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Mitral regurgitation (MR) is one of the most common valvular heart diseases in China, causing heart failure. Patients with moderate to severe MR have a very poor clinical prognosis if no intervention is performed. When symptoms are still poorly controlled after guideline-directed medical therapy (GDMT) or when surgical intervention is not suitable, transcatheter mitral valve edge-to-edge repair (TEER) can improve the patient's quality of life and reduce the hospitalization rate and mortality rate. However, some patients develop into afterload mismatch (AM) after TEER, persistent adverse ventricular remodeling, and a high mortality rate, which limits the surgical benefits of TEER surgery in these MR patients. Therefore, how to scientifically predict AM and intervene as early as possible has become a research hotspot for optimizing the postoperative management of TEER patients. Afterload Mismatch Predictive modLE for Transcatheter Edge-to-Edge Repair (AMPLE-TEER) study is a prospective cohort study including adult patients undergoing TEER during hospitalization. We aim to evaluate whether the patients develop into AM after TEER, evaluate the prognostic risk factors of AM and construct a prognostic clinical model to guide clinical decision-making.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Patients undergoing TEER | – | –Adult MR patients undergoing TEER during hospitalization |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Adult patients undergoing transcatheter mitral valve edge-to-edge repair (TEER) during hospitalization were enrolled.
Key inclusion criteria (2 listed)
- Patients undergoing transcatheter mitral valve edge-to-edge repair (TEER) during hospitalization.
- Aged over 18 yrs.
Key exclusion criteria (1 listed)
- Patients unable to provide written consent.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Afterload mismatch
Time frame: Through study completion, an average of 5 years
The increase in the patient's left ventricular end-diastolic volume index (LVEDVi) after transcatheter mitral valve edge-to-edge repair (TEER) was 10% or more compared with before (dLVEDVi ≥10%).
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Jun 2025.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Mitral Insufficiency, run by Sun Yat-sen University at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 13 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Xiaodong Zhuang (+86 13760755035, zhuangxd3@mail.sysu.edu.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Afterload mismatch (time frame: Through study completion, an average of 5 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Jun 2025.