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Moderate Aortic StenosisNCT07532317

Comparison of Myval THV Series With Guideline-Directed Medical Therapy in Participants With Moderate Aortic Stenosis

A study testing Transcatheter aortic valve Implantation in people with Moderate Aortic Stenosis, run by Meril Life Sciences Pvt. 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
Search all trials

Trial summary

The primary objective of this trial is to evaluate the safety and effectiveness of Meril's Myval THV series in comparison to Guideline-Directed Medical Therapy in participants with moderate aortic stenosis. The trial includes a total of 778 participants (389:389) from approximately 50 investigator sites globally. Read more about this study

Who is it for?
Ages 65 years and older
Conditions the study is for
Moderate Aortic Stenosis
What is being tested?
Transcatheter aortic valve Implantation
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
778 participants
Where
No sites listed yet
Study dates
17 May 2026to 12 May 2041
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 65 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Who may be able to join

  • All participants for this study must meet all of the following inclusion criteria:
  • Participants with ≥ 65 years of age.
  • Participant has provided written informed consent as approved Institutional Review Board (IRB)/Independent Ethics Committee (IEC)/Ethics Committee (EC) of the investigational site to participate in the study.
  • Participant with moderate aortic stenosis, defined as one of the following
  • Peak aortic jet velocity (Vmax) ≥ 3.0 m/s and < 4.0 m/s, or
  • Mean pressure gradient ≥ 25 mmHg and < 40 mmHg AND
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  • The participant must meet one of the following categories:
  • 3.1.AVA > 1.0 - ≤ 1.5 cm²; OR
  • 3.2.AVA ≤ 1.0 cm² (or AVAi ≤ 0.6 cm²/m²)
  • 3.2.1 Left Ventricular Function and Flow Profile: It is defined as participants with peak aortic jet velocity (Vmax) ≥ 3.0 and < 4.0 m/s or mean pressure gradient ≥ 25 and < 40 mmHg, and in the presence of aortic valve area (AVA) ≤ 1.0 cm² (or AVAi ≤ 0.6 cm²/m²)
  • The participant must meet one of the following categories:
  • a.Normal-Flow, Preserved LVEF:
  • Stroke Volume Index (SVi > 35 ml/m²) and LVEF ≥ 50% then, perform CT aortic valve calcium score to confirm true moderate AS:<1200 AU (female) or < 2000 AU (male) OR b.Low-Flow, Preserved LVEF:
  • SVi ≤ 35 ml/m² and LVEF ≥ 50%, then perform CT aortic valve calcium score to confirm true moderate AS: < 1200 AU (female) or < 2000 AU (male) OR c.Low-Flow, Reduced LVEF:
  • SVi ≤ 35 ml/m² and LVEF < 50%, then confirm contractile reserve on dobutamine stress echocardiography (DSE)^, defined as a ≥ 20% increase in stroke volume with; I.AVA > 1.0 and ≤ 1.5 cm² or II.AVA > 1.0 cm² then perform CT aortic valve calcium score to confirm true moderate AS: < 1200 AU (female) or < 2000 AU (male) ^ If DSE is not feasible or inconclusive, CT calcium scoring will be considered, with thresholds of < 1200 AU for female and < 2000 AU for male to identify Moderate AS participants.
  • Not applicable for asymptomatic participants as asymptomatic with SVi > 35 are excluded.
  • Moderate AS participants with symptoms:
  • Evidence of symptoms:
  • I.NYHA class ≥ II# and II.Chronic Dyspnea or III.Angina (CCS ≥ II) or IV.Cardiac Syncope
  • OR
  • Asymptomatic moderate AS participants with at least one of the evidence of cardiac damage/dysfunction:
  • I.Participant with left ventricle ejection fraction ≤ 50% or
  • II.Diastolic dysfunction ≥ Grade II or
  • III.Stroke Volume Index ≤ 35 ml/m² or
  • IV.Persistent Atrial Fibrillation (AF) lasting from past 6 months or Paroxysmal Atrial Fibrillation episode within 6 months prior to consent or
  • V.NT-proBNP ≥ 200 pg/ml or ng/l or ≥ 200000 µg/l (or BNP ≥ 50 pg/ml or ng/l or ≥ 50000 µg/l) or
  • VI.LV mass index > 95 g/m² for female and > 115 g/m² for male (To detect LV hypertrophy) or
  • VII.LV dimension or
  • LV systolic diameter > 4 cm or > 40 mm for male and > 3.5 cm or 35 mm for female or
  • LV diastolic diameter > 5.8 cm or > 58 mm for male and > 5.2 cm or 52 mm for female
  • VIII.LV volume
  • LV systolic volume > 61 mL or cm3 for male and > 42 mL or cm3 for female or
  • LV diastolic volume > 150 mL or cm3 for male and > 106 mL or cm3 for female
  • Only 10% of total study participants with NYHA class IV will be included in the trial.

Who cannot join

  • Participants with moderate aortic stenosis undergoing concomitant CABG or surgical intervention on the ascending aorta or another valve.
  • Aortic valve is unicuspid or non-calcified as verified by echocardiography/CT.
  • Renal insufficiency with glomerular filtration rate (GFR) < 30 mL/min and/or need for renal replacement therapy.
  • Participants with ≥ moderate concomitant aortic regurgitation (≥ 3 grade).
  • Participants with severe aortic stenosis.
  • Moderate or severe mitral/tricuspid regurgitation (≥ 3 grade).
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  • Participants with pre-existing mechanical or bioprosthetic aortic valve.
  • Left ventricle ejection fraction ≤ 20%.
  • Severe left ventricular outflow tract calcification that would increase the risk of annular rupture or significant paravalvular leak post-TAVI.
  • Cardiac imaging evidence of intracardiac mass, thrombus, or vegetation.
  • Previous stroke with permanent disability (modified Rankin score ≥ 2).
  • Life expectancy < 24 months due to non-cardiac co-morbid conditions including carcinomas, chronic liver disease, chronic renal disease or chronic end-stage pulmonary disease.
  • Currently participating in an investigational drug or another device study where the primary endpoint is not achieved.
  • Any condition, which in the Investigator's opinion, would preclude safe participation of participants in the study (e.g. psychiatric, alcoholism).
  • TAVI unsuitable via transfemoral route.

Trial locations and contacts

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

Dr.Ashokkumar Thakkar, PhD. Clinical Pharmacology contact

+91-9879443584

landmark.2@merillife.com

About this study

Official title: A Prospective, Multinational, Multicentre, Open-label, Randomized Trial to Evaluate Safety and Effectiveness of Meril's Myval Transcatheter Heart Valve (THV) Series Compared to Guideline-Directed Medical Therapy (GDMT) in Participants With Moderate Aortic Stenosis.

The primary objective of this trial is to evaluate the safety and effectiveness of Meril's Myval THV series in comparison to Guideline-Directed Medical Therapy in participants with moderate aortic stenosis. The trial includes a total of 778 participants (389:389) from approximately 50 investigator sites globally.

Read the detailed description

Participants with symptomatic moderate aortic stenosis OR asymptomatic moderate aortic stenosis with evidence of cardiac damage as assessed by echocardiography core lab.

Being tested
Transcatheter aortic valve Implantation
Keywords
Cardiac Damage, Effectiveness, Guideline Directed Medical Therapy, Left ventricular ejection fraction, Low-flow, low-gradient aortic stenosis, Transcatheter Heart Valve THV), Moderate aortic stenosis, Myval THV series, Myval THV, Myval Octacor THV, Myval OctaPro THV, Myval OctaPro+ THV

What participants receive

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

  • Transcatheter aortic valve ImplantationDevice

    Myval THV Series will include Myval/Myval Octacor/ OctaPro/OctaPro+ THV or any subsequent advanced version commercially available at the investigator site.

Study groups in NCT07532317
Study groupRoleWhat they receive
Guideline-directed medical therapyNo interventionNot described
Transcatheter Aortic Valve ImplantationExperimentalNot described
Receives: Device: Transcatheter aortic valve Implantation

What is being measured

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

  1. Primary Efficacy Endpoint

    It is the composite of following:

    All-cause mortality,

    Disabling stroke,

    Aortic valve replacement due to advanced valve syndrome (AVS),

    Heart failure hospitalization,

    Deterioration in quality of life by Kansas City Cardiomyopathy Questionnaire (KCCQ) at 2 years or at the time of conversion to AVR in the GDMT arm.

    Measured: 2-year

Secondary outcomes (24)
  1. All-cause mortality

    As per VARC-3 defined criteria

    Measured: Predischarge, 30-day, 6-month, 1-year, 1.5-year, 2-year, 2.5-year, 3-year, 4- year, 5-year, 6-year, 7-year and 10-year

  2. All stroke

    As per VARC-3 defined criteria

    Measured: Pre-discharge, 30- day, 6-month, 1-year, 1.5-year, 2-year, 2.5-year, 3-year and 5-year

  3. Acute Kidney Injury (AKI)

    As per VARC-3 defined criteria

    Measured: Pre-discharge, 30-day

  4. Bleeding (Type 2, 3 and 4)

    As per VARC-3 defined criteria

    Measured: Predischarge, 30-day

  5. Major vascular complications

    As per VARC-3 defined criteria

    Measured: 30-day

  6. Conduction disturbances and arrhythmias

    As per VARC-3 defined criteria

    Measured: Pre-discharge, 30-day, 6-month, 1-year, 1.5-year, 2-year, 2.5- year, 3-year and 5-year

  7. New Permanent Pacemaker Implantation (PPI)

    As per VARC-3 defined criteria

    Measured: Pre-discharge, 30-day, 6-month, 1-year, 1.5-year, 2-year, 2.5-year, 3-year and 5-year

  8. Proportion of participants requiring initiation of Cardiac Resynchronization Therapy

    Initiation of CRT (Cardiac Resynchronization Therapy Pacemaker or Defibrillator with Cardiac Resynchronization Therapy) as clinically indicated by the treating cardiologist.

    Measured: Pre-discharge, 30-day, 6- month, 1-year, 1.5-year, 2-year, 2.5-year, 3-year and 5-year

  9. Aortic valve replacement due to advanced valve syndrome

    Measured: 6-month, 1-year, 1.5-year, 2-year, 2.5-year, 3-year and 5-year

  10. Myocardial Infarction

    As per VARC-3 defined criteria

    Measured: Predischarge, 30-day, 6-month, 1-year, 1.5-year, 2-year

  11. New York Heart Association (NYHA) functional classification

    Measured: Screening, Pre-discharge, 30-day, 6-month, 1-year, 1.5-year, 2- year, 2.5-year, 3-year and 5-year

  12. Six-minute walk test

    Measured: Screening, 30-day, 6-month, 1-year, 1.5-year, 2-year, 2.5-year, 3-year and 5-year

  13. Echocardiographic endpoints

    Measured: Screening, Pre-discharge, 30-day, 6-month, 1-year, 1.5-year, 2-year, 2.5-year, 3-year, 5-year and 10- year

  14. Bioprosthetic valve failure

    VARC-3 defined criteria

    Measured: 1-year, 1.5-year, 2-year, 2.5-year, 3-year, 5-year and 10-year

  15. Bioprosthetic valve deterioration

    VARC-3 defined criteria

    Measured: 1-year, 1.5-year, 2-year, 2.5-year, 3-year, 5-year and 10-year

  16. Aortic bioprosthetic valve dysfunction

    As per VARC-3 defined criteria

    Measured: 1-year, 1.5-year, 2-year, 2.5-year, 3-year, 5-year and 10-year

  17. Heart failure hospitalization

    As per VARC-3 defined criteria

    Measured: 30-day, 6-month, 1-year, 1.5-year, 2-year, 2.5-year, 3-year and 5-year

  18. Kansas City Cardiomyopathy Questionnaire

    Overall Summary Score < 45 or decline from baseline of >10 point (Unfavorable Outcome)

    Score Interpretation:

    0 to 25: Very poor to poor health 25 to 49: Poor to fair health 50 to 74: Fair to good health 75 to 100: Good to excellent health

    Measured: Screening, 1-year, 2-year, At time of conversion to AVR from GDMT arm

  19. Moderate or severe prosthetic valve regurgitation

    As per VARC-3 defined criteria

    Measured: Screening, Pre-discharge, 30-day, 6-month, 1- year, 1.5-year, 2-year, 2.5-year, 3-year, 5-year and 10-year

  20. N-Terminal Pro B-type Natriuretic Peptide (NT-ProBNP) or BNP

    Measured: Screening, Pre-discharge, 30-day, 6-month, 1-year, 1.5-year, 2-year, 2.5-year, 3-year and 5-year

  21. New onset of atrial fibrillation or atrial flutter

    As per VARC-3 defined criteria

    Measured: Pre-discharge, 30-day, 6-month, 1-year, 1.5-year, 2-year, 2.5-year, 3-year and 5-year

  22. Aortic valve replacement or reintervention

    Aortic valve replacement or reintervention is defined as any surgical or transcatheter procedure performed to replace the native aortic valve with a prosthetic valve or to treat dysfunction of a previously implanted prosthetic aortic valve. This includes surgical aortic valve replacement (SAVR), transcatheter aortic valve implantation (TAVI), valve-in-valve TAVI, redo TAVI, or surgical replacement of a previously implanted transcatheter or surgical valve.

    Measured: 30-day, 6- month, 1-year, 1.5-year, 2-year, 2.5-year, 3-year, 5-year and 10-year

  23. Technical success

    As per VARC-3 defined criteria

    Measured: At exit from procedure room

  24. Device success

    As per VARC-3 defined criteria

    Measured: 30-day

Timeline

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

  1. First posted15 Apr 2026
  2. Study start17 May 2026 (estimated)
  3. Primary completion12 May 2031 (estimated)
  4. Study completion12 May 2041 (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
None (open label)
Enrolment
778 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07532317
Sponsor's protocol ID
MLS/MYV/LANDMARK 2
Status last verified
Apr 2026
First submitted
8 Apr 2026
Last updated
6 May 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Transcatheter aortic valve Implantation in people with Moderate Aortic Stenosis, run by Meril Life Sciences Pvt. 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 34 inclusion and 15 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 6 May 2026. 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 Dr.Ashokkumar Thakkar, PhD. Clinical Pharmacology (+91-9879443584, landmark.2@merillife.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Primary Efficacy Endpoint (time frame: 2-year). 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 6 May 2026.

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