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WithdrawnNCT06650839Updated Jan 7, 2026

POC for the Treatment of Subjects With Moderate AS Using Valvosoft® Non-Invasive Ultrasound Therapy

An interventional study of NIUT in Moderate Aortic Valve Stenosis, sponsored by Cardiawave SA. Withdrawn at 1 site in Serbia. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-01-07.

Sponsored by Cardiawave SA · Not applicable, Interventional, and Treatment

Why this study was withdrawn
company decision not to start the study
Phase
Not applicable
Study type
Interventional
Enrollment
0
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This study is a proof of concept looking at the safety of treating subjects with moderate aortic stenosis using a Non-Invasive Ultrasound Therapy.

Read the detailed description

Valvosoft, Ultrasound guided Non-Invasive Ultrasound Therapy (NIUT) medical device, delivers focused and controlled, short ultrasound pulses (\<20μsec), directed trans-thoracically at a high acoustic intensity (measured in watts per square centimeter (W/cm2), to produce non-thermal mechanical tissue softening of the targeted calcified aortic valve.

Echocardiographic live imaging enables to follow valve movements in real-time and thus target the therapeutic ultrasound on the calcified valve with great precision. This is first in human or proof of concept study.

02

Conditions studied

  • Moderate Aortic Valve Stenosis

Keywords

  • aortic stenosis
  • moderate
  • aortic valve
  • balloon valvuloplasty
  • TAVR
  • SAVR
  • Ultrasound
  • FUS
  • PCUT
  • NIUT
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In context

Aortic Valve Stenosis

985 studies on the registry are indexed under Aortic Valve Stenosis; 283 are open to participants now.

Browse Aortic Valve Stenosis studies →

Lead sponsor

Cardiawave SA is the lead sponsor of 6 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Aortic Valve Area (AVA) ≥1.0 cm2 ≤ 1.5 cm2 and either mean aortic Pressure Gradient (mPG) of >25 - \< 40 mmHg or maximum velocity (Vmax) ≥3 ≤4 m/sec in normal flow conditions; or
  2. Normal-flow, low-gradient aortic stenosis (AS) with preserved ejection fraction (mean aortic Pressure Gradient (mPG) \<40 mmHg, Aortic Valve Area (AVA) ≥0.8 ≤1.0 cm2, Left Ventricular Ejection Fraction (LVEF) ≥50%, Stroke Volume Index (SVi) >35 mL/m2);
  3. Age ≥18 years;

Exclusion criteria

Exclusion Criteria:

  1. mPG ≥40 mmHg; or
  2. Severe aortic valve stenosis or other severe valve diseases; or
  3. Subject with severe aortic regurgitation; or
  4. Subjects with implanted mechanical or bioprosthetic valve in aortic position, or mechanical valve in any other positions; or
  5. Heart failure with a NYHA 3 or 4; or
  6. Cardiogenic shock or other hemodynamic instability; or
  7. LVEF ≤50%; or
  8. History of heart transplant; or
  9. Subject with a significant kidney disease (eGFR ≤30 mL/min/1.73 m2) or subject is on dialysis; or
  10. Subject with uncontrolled hypertension defined as systolic Blood Pressure (BP) ≥160 mmHg and/or a diastolic BP ≥100 mmHg (mean of 3 measurements for both assessments); or
  11. Cardiac imaging evidence of vegetation; or
  12. Current endocarditis; or 13 Subject has a documented history of cardiac amyloidosis; or

14. Acute Myocardial Infarction (MI) ≤1 month prior to enrolment; or 15. Stroke or Transient Ischemic attack (TIA) ≤1 month prior to enrollment; or 16. Balloon Aortic Valvuloplasty (BAV) ≤3 months prior to enrollment; or 17. Leukopenia (WBC \<4000 cell/μL), anemia (Hgb \< 8 g/dL), thrombocytopenia (platelet count \<50.000 cell/μL), or history of coagulopathy or hypercoagulable state.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Treatment MAS

    Subjects will be treated with Valvosoft, Ultrasound guided Non-Invasive Ultrasound Therapy (NIUT) medical device, to reduce the symptoms caused by moderate aortic stenosis

    Device: NIUT

Interventions

  • DeviceNIUT

    Treatment of moderate aortic stenosis using non-invasive ultrasound therapy delivered by Valvosoft

06

What researchers measure

Primary outcomes

  1. Rate of MACE

    Rate of MACE defined as a composite of all-cause mortality, MI, stroke, rehospitalization for heart failure at 30 days.

    Time frame: from baseline to 30 days FU

  2. Improvement in leaflet mobility

    Change in leaflet mobility measured by means of a change in AVA

    Time frame: at 6 months FU compared to baseline

Secondary outcomes

  1. Rate of MACE

    Rate of MACE

    Time frame: at 6 , 12 , 18 , 24 months

  2. Rate of all Serious Adverse Events

    Rate of all Serious Adverse Events

    Time frame: peri-procedural and at 30 days, 3 , 6 , 12 , 18 , 24 months

  3. Rate of Stroke

    Rate of stroke (disabling and non-disabling; ischemic and hemorrhagic

    Time frame: at 30 days, 3 , 6 , 12 , 18 , 24 months

  4. Change of AS

    Change of AS by means of AVA( assessed by an independent echocardiographic CoreLab

    Time frame: at 30 days, 3 , 6 , 12 , 18 , 24 months compared to Baseline;

  5. Change in Quality of Life by means of KCCQ

    Improvement of quality of life by means of ansas City Cardiomyopathy Questionnaire (KCCQ). KCCQ is a 23-item, self-administered questionnaire.

    Time frame: at 30 days, 3 , 6 , 12 , 18 , 24 months compared to Baseline;

  6. Change in Quality of Life by means of EQ-5D

    Improvement of quality of life by means of EQ-5D. The EQ-5D descriptive system comprises the following five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression.

    Time frame: at 30 days, 3 , 6 , 12 , 18 , 24 months compared to Baseline;

  7. Change in Exercise capacity

    Improvement in VO2-max measured during Echo Spiro-Ergometry (ESE)

    Time frame: at 30 days, 6 , 12 , 18 , 24 months compared to Baseline;

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Study locations

1 site
  • University Clinical Centre Serbia
    Belgrade, 11000, Serbia
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 7, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06650839
Lead sponsor
Cardiawave SA
Collaborators
Micro Cro, TWrite
Responsible party
Sponsor
First posted
Oct 21, 2024
Start date
Oct 2025 (estimated)
Primary completion
Oct 2026 (estimated)
Completion
Dec 2027 (estimated)
Last update
Jan 7, 2026

Study contacts

Milos Velinovic, MD, PhD
principal investigator · University Clinical Centre Serbia
Danijela Trifunovic-Zamklar, MD, PhD
principal investigator · University Clinical Centre Serbia

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is withdrawn, as verified in Jan 2026. You cannot join it, but the record below documents what was studied.

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