Clinical Study of an Ultrasound Renal Denervation System in Patients With Heart Failure

March 13, 2026 updated by: Otsuka Medical Devices Co., Ltd. Japan
The purpose is to evaluate the renal denervation system (PRDS-001) for controlling sympathetic nerve over-activation in patients with heart failure, and for its safety in such patients.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
6

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Japan
      • Osaka, Japan
        • Osaka University Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 84 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria :

  • Patients aged 18 years or older and younger than 85 years at the time of informed consent
  • NYHA (New York Heart Association) class II-III
  • More than 6 weeks have passed since onset of acute heart failure or acute exacerbation of chronic heart failure
  • Washout rate of MIBG [3 (meta)-iodobenzylguanidine] scintigraphy-cardiac is more than 35%
  • Patients having continued treatment of heart failure with the same dosage and administration for 4 weeks before obtaining informed consent

Exclusion Criteria :

  • Patients with type1 diabetes mellitus, or uncontrolled type 2 diabetes mellitus (HbA1c: ≥ 8%)
  • Patients whose eGFR (estimated glomerular filtration rate) is less than 40 mL/min/1.73 m^2 (estimation formula by Japanese Society of Nephrology)
  • Patients with concomitant or previous autoimmune or inflammatory bowel disease
  • Patients with a history of serious lung disease
  • Patients with a history of heart transplantation or VAD [ventricle-assist device]
  • Patients receiving reserpine, tricyclic antidepressants, and labetalol hydrochloride (can be used for up to 5 half-lives before informed consent is obtained)
  • Patients being treated for Parkinson's disease or Lewy body dementia
  • Patients with a history of any severe cardiovascular event (myocardial infarction, coronary artery bypass graft surgery, acute heart failure requiring hospitalization) or severe cerebrovascular event (stroke, transient ischemic event, cerebrovascular accident, etc.) within 3 months before obtaining informed consent
  • Patients with persistent atrial fibrillation
  • Patients using active implantable medical devices
  • Patients with coronary or carotid artery diseases who were deemed necessary by the principal investigator / sub investigator to undergo surgery or PCI (Percutaneous Coronary Intervention) within 6 months after obtaining informed consent
  • Patients with contraindications, unacceptable anaphylactic reactions, or uncontrollable allergies to contrast media
  • Female patients who are pregnant or breastfeeding
  • Patients whose office blood pressure (systolic) is 100mmHg or lower at the time of screening test

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: PRDS-001
Renal denervation
Device: PRDS-001 Renal Denervation Ultrasound System
Renal Denervation Ultrasound System
Other Names:
  • renal denervation

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
MIBG-cardiac(washout rate)
Time Frame: 6 months
6 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
MIBG-cardiac(early; heart-to-mediastinum ratio (H/M), late: H/M)
Time Frame: 6 months
6 months
Anaerobic Threshold assessed by CPX (Cardiopulmonary Exercise Testing)
Time Frame: 6 months
6 months
Lowest minute ventilation (VE)/carbon dioxide output (VCO2) assessed by CPX
Time Frame: 6 months
6 months
Peak oxygen uptake (peak VO2) assessed by CPX
Time Frame: 6 months
6 months
Peak VO2/heart rate assessed by CPX
Time Frame: 6 months
6 months
VE-VCO2 slope assessed by CPX
Time Frame: 6 months
6 months
Peak respiratory exchange ratio assessed by CPX
Time Frame: 6 months
6 months
Peak load assessed by CPX
Time Frame: 6 months
6 months
Ramp duration assessed by CPX
Time Frame: 6 months
6 months
Urinary noradrenalin concentration
Time Frame: 6 months
6 months
NYHA class
Time Frame: 6 months
6 months
MIBG-renal (washout rate)
Time Frame: 6 months
6 months
MIBG-renal (early: kidney-to-mediastinum ratio (K/M), late: K/M)
Time Frame: 6 months
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Otsuka Medical Devices Co., Ltd. Japan

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 24, 2021

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 16, 2022

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 7, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 16, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 19, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 22, 2021

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 17, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 13, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • RDN-19-001

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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