Clinical trial Recruiting at 3 sites Interventional Ages 22 to 85

Using ultrasound to treat pulmonary hypertension in heart failure patients

Official title: Pulmonary Artery DenerVation Clinical Study Using the Gradient Denervation System in Heart Failure Patients With Pulmonary Hypertension Group 2 (PreVail-PH2 OUS Study)

Run by Gradient Denervation Technologies · NCT06495970 · Data updated 2026-11-12

This study tests whether using ultrasound to treat pulmonary hypertension can help heart failure patients feel better and improve their quality of life.

More Pulmonary Hypertension trials

Quick facts

Study typeInterventional
Ages22 Years to 85 Years
SexAll
Enrollment20 (estimated)
SponsorGradient Denervation Technologies
Industry-sponsored
Locations3 sites (Badalona and 2 other locations)
StatusRecruiting
StartedJune 26, 2024
Main results expectedNovember 30, 2025
Study endsJune 30, 2026
Registry record updatedAugust 1, 2025
Trial IDNCT06495970 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are heart failure patients with Group 2 pulmonary hypertension, specifically those with elevated pulmonary artery pressure and certain functional limitations.

Probably not a fit

Patients with severe valve regurgitation or those unable to tolerate the required procedures may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial evaluates the effectiveness of the Gradient Denervation System, which utilizes ultrasound ablation to reduce sympathetic nervous activity in the pulmonary artery. The goal is to improve the quality of life for heart failure patients suffering from Group 2 pulmonary hypertension. Participants will undergo a procedure where a catheter is used to deliver targeted ultrasound energy to specific locations in the pulmonary artery. The study aims to assess changes in pulmonary artery pressure and overall patient well-being following the intervention.

Why it matters

Potential benefit: If successful, this treatment could significantly enhance the quality of life for patients with pulmonary hypertension and heart failure.

How similar studies have gone: While the approach of using ultrasound ablation for pulmonary artery denervation is innovative, similar studies have shown promise in related areas, suggesting potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Mean Pulmonary Artery Pressure (mPAP) \>20 mmHg at rest
* Pulmonary Vascular Resistance (PVR) ≥ 3WU at rest
* Pulmonary Capillary Wedge Pressure \> 15 mmHg (at rest) or \> 18 with passive leg raise
* NYHA Class II or III
* Glomerular Filtration Rate (GFR) ≥ 25 ml/min

Exclusion Criteria:

* Unwilling to provide informed consent or complete follow-up assessments
* Life expectancy of \< 2 years
* Inability to take dual antiplatelet or anticoagulants, hypersensitivity or allergy to aspirin or clopidogrel
* Unable to tolerate right heart catheterization
* Severe aortic, mitral or pulmonary valve regurgitation
* Clot or Thrombus in any potential target ablation zone (right, left or main pulmonary artery)
* Systemic infection or localized infection/rash at planned access site at time of procedure
* CRT, ICD, Pacemaker or other Interventional cardiac procedure (except RHC) within the last 3 months

Where it's running

  • Hospital Universitari Germans Trias i Pujol
    Badalona, Spain
    Recruiting
  • Hospital Universitari Vall d'Hebron
    Barcelona, Spain
    Recruiting
  • Hospital Clínico Universitario de Valencia
    Valencia, Spain
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.