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Aortic Valve StenosisNCT06737757

Clinical Trial Evaluating the Safety and Efficacy of Artificial Polymer Heart Valve for the Treatment of Aortic Valve Disease

A study testing Artificial polymer heart valves and Bovine pericardial aortic valve in people with Aortic Valve Stenosis and Aortic Valve Disease, run by Suzhou Hearthill Medical Technology Co.,LTD.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

The purpose of this study is to conduct the clinical investigation of the HeartHill Medical's polymer aortic valve, namely PoliaVavle,to collect evidence on the device's safety and performance. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Artificial polymer heart valves and Bovine pericardial aortic valve
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
198 participants
Where
No sites listed yet
Study dates
Dec 2024to Dec 2029
Phase
Interventional
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

Who may be able to join

  • The subjects are aged ≥18 years old;
  • The subjects understand the nature and purpose of the study, voluntarily participate, and sign the informed consent form. They agree to comply with the trial requirements, cooperate with surgical treatment and follow-up, and consent to relevant follow-up inquiries and examinations;
  • The subjects have been confirmed to have severe aortic valve stenosis and/or regurgitation (also known as insufficiency) through echocardiography;
  • According to the 2020 ACC/AHA guidelines for the management of patients with valvular heart disease, the subjects meet the indications for surgical aortic valve replacement and preoperative assessment recommends surgical aortic valve replacement.

Who cannot join

  • Other valve diseases with surgical indications, such as severe mitral regurgitation, severe tricuspid regurgitation, moderate or greater mitral stenosis, or a history of previous aortic or other valve replacement surgery;
  • Other severe cardiovascular conditions with surgical indications, such as Stanford A-type aortic dissection, aortic sinus aneurysm (sinus diameter > 5.0cm), hypertrophic obstructive cardiomyopathy, diffuse three-vessel coronary artery disease, or placement of a left ventricular assist device in end-stage heart failure;
  • End-stage heart failure that is not reversible even with aortic valve surgery, such as severe left ventricular dysfunction (LVEF < 25%), or severe heart failure that cannot be corrected, or severe pulmonary hypertension assessed by right heart catheterization, with planned postoperative Impella, IABP, or left ventricular assist;
  • Preoperative decompensated heart failure, cardiogenic shock, malignant arrhythmias, etc., requiring mechanical circulatory support, mechanical ventilation, or emergency surgery;
  • Active endocarditis within the past 3 months or the presence of cardiac vegetations;
  • Severe acute myocardial infarction or history of cerebrovascular accidents within the past 3 months (excluding lacunar infarcts);
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  • Severe renal insufficiency (glomerular filtration rate < 30mL/min) or end-stage renal disease requiring long-term dialysis;
  • Liver dysfunction or gastrointestinal malnutrition-related diseases;
  • Active bleeding, bleeding tendencies, or patients unable to receive anticoagulant therapy;
  • Severe respiratory or ventilatory dysfunction requiring continuous oxygen therapy;
  • Poor compliance or cognitive impairment (such as coma, Parkinson's disease, dementia, substance abuse), inability to follow study requirements or refusal to participate in follow-up visits;
  • Other conditions with an expected lifespan of less than 1 year, such as malignancies and immunodeficiency diseases;
  • Other situations not suitable for artificial aortic valve replacement or participation in this trial.

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

About this study

Official title: Prospective, Multicenter, Randomized Controlled, Non-Inferiority Clinical Trial Evaluating the Safety and Efficacy of Artificial Polymer Heart Valve for the Treatment of Aortic Valve Disease

The purpose of this study is to conduct the clinical investigation of the HeartHill Medical's polymer aortic valve, namely PoliaVavle,to collect evidence on the device's safety and performance. This prospective, multicenter, randomized controlled, non inferiority clinical trial is expected to enroll 198 subjects and conduct a 1:1 random grouping. The experimental group will use polymer material surgical aortic valves(PoliaVavle, HeartHill Medical, Suzhou China) for aortic valve replacement, while the control group will use bovine pericardial biological valves for aortic valve replacement.

Being tested
Artificial polymer heart valves, Bovine pericardial aortic valve
Medical subject headings
Aortic Valve Stenosis, Aortic Valve Disease, Aortic Valve Insufficiency

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Artificial polymer heart valvesDevice

    The experimental group will use polymer material surgical aortic valves(PoliaValve, Hearthill Medical) for aortic valve replacement

  • Bovine pericardial aortic valveDevice

    The control group will undergo aortic valve replacement using bovine pericardial aortic valve

Study groups in NCT06737757
Study groupRoleWhat they receive
Experimental group(PoliaValve)ExperimentalUsing artificial polymer heart valves(PoliaValve, Hearthill Medical) for aortic valve replacement
Receives: Device: Artificial polymer heart valves
Control GroupActive comparatorUsing bovine pericardium aortic valve for aortic valve replacement
Receives: Device: Bovine pericardial aortic valve

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Survival rate without prosthetic valve events at 12 months post-surgery

    Event-free survival of the prosthetic valve at 12 months postoperatively. The 12-month postoperative survival rate without artificial valve events. The event-free survival rate refers to patients who have not experienced any reasons for heart-related or non-heart-related deaths, moderate or severe artificial valve degeneration, or the need for re-intervention on the artificial valve within 12 months after surgery.

    Measured: 12 months following patient enrollment completion

Secondary outcomes (10)
  1. Surgical success rate

    Surgical success rate: Surgical success is defined as the prosthetic valve function within 1 month after surgery, the prosthetic valve has a transvalvular pressure difference of <20mmHg or a peak flow rate of < 3m/s, no moderate or above intravalvular regurgitation or paravalvular leakage), and the patient survives without re-intervention.

    Measured: 1 month following patient enrollment completion

  2. Evaluation of postoperative artificial valve function(effective valve orifice area)

    Use echocardiography to evaluate the effective valve orifice area to assess the hemodynamic Performance.

    Measured: baseline and 12months following patient enrollment completion

  3. Evaluation of postoperative artificial valve function(mean transvalvular pressure gradient)

    Use echocardiography to evaluate the mean transvalvular pressure gradient.

    Measured: baseline and 12months following patient enrollment completion

  4. Evaluation of postoperative artificial valve function(peak flow velocity)

    Use echocardiography to measure the peak flow velocity.

    Measured: baseline and 12months following patient enrollment completion

  5. Evaluation of postoperative artificial valve function(regurgitation)

    Evaluate the presence or absence of intravalvular or paravalvular regurgitation during the follow-up period by echocardiography.

    Measured: baseline and 12months following patient enrollment completion

  6. New York Heart Association Assessment (NYHA)

    Evaluate the New York Heart Association (NYHA) assessment to determine the improvement in cardiac function.The NYHA classification of heart function consists of four levels, ranging from Class I to Class IV, with heart function progressively deteriorating.

    Measured: baseline and 12months following patient enrollment completion

  7. Left ventricular ejection fraction(LVEF) change from baseline in postoperative echocardiographic

    LVEF(%) change from baseline in postoperative echocardiography.

    Measured: baseline and 12 months post-surgery

  8. Left ventricular end-systolic diameter(LVESD) change from baseline in postoperative echocardiographic

    LVESD(mm) change from baseline in postoperative echocardiography.

    Measured: baseline and 12 months post-surgery

  9. Left ventricular end-diastolic diameter(LVEDD) change from baseline in postoperative echocardiographic

    LVEDD(mm) change from baseline in postoperative echocardiography.

    Measured: baseline and 12 months post-surgery

  10. BNP or NT-proBNP

    Measure BNP or NT-proBNP to get the changes in postoperative cardiac function from baseline.

    Measured: baseline and 12 months following patient enrollment completion

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Dec 2024
  2. Study startDec 2024 (estimated)
  3. Primary completionAug 2026 (estimated)
  4. Study completionDec 2029 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
198 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06737757
Sponsor's protocol ID
PoliaValve-SA-02
Status last verified
Dec 2024
First submitted
11 Dec 2024
Last updated
30 Dec 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Artificial polymer heart valves and Bovine pericardial aortic valve in people with Aortic Valve Stenosis and Aortic Valve Disease, run by Suzhou Hearthill Medical Technology Co.,LTD.

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 4 inclusion and 13 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: opening soon, as of the sponsor's last update on 30 Dec 2024. Status can change between updates, so confirm with the study contact before making plans.

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 Fanglin Lu, MD (86-021-63240090, drlufanglin@yeah.net), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Survival rate without prosthetic valve events at 12 months post-surgery (time frame: 12 months following patient enrollment completion). 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 30 Dec 2024.

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