NCT02835950

Brief Summary

The objective of this study is to assess the safety, performance and initial effectiveness of the TIVUS™ System when used for pulmonary artery denervation through subjective and objective change in clinical parameters and haemodynamic evaluation. This is a prospective, multi-center, non-randomized, open-label clinical trail. The study will be conducted in up to 4 centers and will recruit up to 15 patients diagnosed with PAH, functional class III who have stable PAH on a stable drug regimen of two pulmonary arterial hypertension specific medications.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
15

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2017

Longer than P75 for not_applicable

Geographic Reach
1 country

4 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 10, 2016

Completed
8 days until next milestone

First Posted

Study publicly available on registry

July 18, 2016

Completed
8 months until next milestone

Study Start

First participant enrolled

March 1, 2017

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 20, 2019

Completed
4.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2023

Completed
Last Updated

August 21, 2023

Status Verified

August 1, 2023

Enrollment Period

2.1 years

First QC Date

July 10, 2016

Last Update Submit

August 16, 2023

Conditions

Outcome Measures

Primary Outcomes (3)

  • Amount of all procedural related adverse event as assessed by the CEC

    Procedural related Adverse Events

    1 month

  • Amount of treatment related adverse event as assessed by the CEC

    All treatment related adverse events

    12 month

  • Number of patient with PAH worsening and all cause death events

    PAH related adverse events and all cause death

    12 month

Secondary Outcomes (7)

  • Clinical effectiveness

    6 months

  • Clinical effectiveness

    6 months

  • Clinical effectiveness

    6 months

  • Clinical effectiveness

    6 months

  • Clinical effectiveness

    1, 6 and 12 months

  • +2 more secondary outcomes

Other Outcomes (10)

  • Observational Variables

    12 Months

  • Observational Variables

    12 Months

  • Observational Variables

    12 Months

  • +7 more other outcomes

Study Arms (1)

Pulmonary Denervation

EXPERIMENTAL

Pulmonary Denervation (PDN) using the TIVUS™ System will be performed in patient suffering from pulmonary arterial hypertension after completion of screening and eligibility phase, The procedure will be performed during right heart catheterisation. Safety and effectiveness of the PDN treatment will be assessed during one year follow up.

Device: Therapeutic Intra-Vascular UltraSound (TIVUS™) System

Interventions

The TIVUS™ System generates high intensity, non-focused ultrasonic energy that is delivered through the wall of the pulmonary artery to achieve local nerve deactivation. Denervation in the pulmonary arteries (PDN) would be performed during right heart catheterization. The PDN procedure would be attempted in the main, right and left pulmonary arteries, close to the main bifurcation.

Also known as: TIVUS™
Pulmonary Denervation

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patient with known pulmonary arterial hypertension (PAH), diagnosed as idiopathic PAH, connective tissue disease PAH, Anorexogen induced or Heritable PAH
  • PAH diagnosis confirmed by hemodynamic evaluation performed prior to screening and showing all of the following: Mean pulmonary artery pressure (mPAP) ≥25 mmHg at rest; Pulmonary capillary wedge pressure (PCWP) or left ventricular end diastolic pressure (LVEDP) ≤15 mmHg; Pulmonary vascular resistance (PVR) at rest \>3 Wood units; Not meeting the criteria for a positive vasodilator response (fall in mPAP ≥ 10 mmHg to ≤ 40 mmHg).
  • Patient with a current diagnosis of WHO functional class III
  • Patient taking two pulmonary arterial hypertension specific medications other than parenteral prostanoids
  • Patient is adhering to a stable drug regimen (i.e., with no changes of dose or medication for a minimum of 3 months prior to enrollment)
  • Patient with eGFR levels of ≥ 30 ml/min/1.73m2or serum creatinine levels of ˂ 150µmol/l

You may not qualify if:

  • Patients who are treated with parenteral prostanoids
  • Pregnant women or women planning a pregnancy within 12 months of study enrolment
  • Patient with significant co-morbid condition(s) which, at the discretion of the PI, are deemed to prohibit study entry
  • Patient with life expectancy of less than a year
  • Concurrent enrollment in another device or drug trial except for observational studies (unless specifically approved by the sponsor)
  • Patient with pulmonary artery anatomy that precludes treatment
  • Patient with moderate to severe pulmonary artery stenosis
  • Patient with any pulmonary artery aneurysm
  • Patient who has experienced a myocardial infarction, unstable angina pectoris, or a cerebrovascular accident in the previous 6 months
  • Patient who has implantable cardiac pacemakers, ICDs, neurostimulators, or drug infusion devices
  • Patients who are unable to undergo an MRI scan

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

UC San Diego Health

San Diego, California, 92103, United States

Location

University of Michigan

Ann Arbor, Michigan, 48109, United States

Location

Columbia University Medical Center/NewYork Presbyterian Hospital

New York, New York, 10032, United States

Location

UT Southwestren Medical Center

Dallas, Texas, 75390, United States

Location

MeSH Terms

Conditions

Pulmonary Arterial Hypertension

Interventions

Drug Delivery Systems

Condition Hierarchy (Ancestors)

Hypertension, PulmonaryLung DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Drug TherapyTherapeutics

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 10, 2016

First Posted

July 18, 2016

Study Start

March 1, 2017

Primary Completion

April 20, 2019

Study Completion

December 1, 2023

Last Updated

August 21, 2023

Record last verified: 2023-08

Data Sharing

IPD Sharing
Will not share

Locations