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CompletedNCT01926951Updated Oct 29, 2015

Renal Denervation Using Externally Focused Therapeutic Ultrasound

An interventional study of Surround Sound Externally Focused Therapeutic Ultrasound in Hypertension, sponsored by Kona Medical Inc.. Completed at 3 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2015-10-29.

Sponsored by Kona Medical Inc. · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
27
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This study will evaluate the effects of renal denervation using externally focused therapeutic ultrasound with external targeting and tracking on patients with refractory hypertension.

Read the detailed description

This study is a prospective, multi-center trial wherein each included subject will receive the experimental externally focused ultrasound renal denervation therapy. It will be conducted on a maximum of twenty patients who meet the eligibility criteria and have signed the informed consent form.

Safety is the primary endpoint of this study. Safety will be assessed by incidence and evaluation of any serious adverse effects associated with the investigational procedure through the 52-week evaluation. Clinical utility is a secondary endpoint of this study. Clinical utility will be evaluated by comparing pre and post therapy systolic and diastolic blood pressure.

02

Conditions studied

  • Hypertension

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Keywords

  • hypertension
03

In context

Hypertension

6,834 studies on the registry are indexed under Hypertension; 971 are open to participants now.

This study's enrollment of 27 is below the median of 90 across 5,095 interventional studies indexed under Hypertension.

Browse Hypertension studies →

Lead sponsor

Kona Medical Inc. is the lead sponsor of 5 studies on the registry; none are 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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • At least 18 years of age
  • Average systolic blood pressure at least 160 mmHg
  • Refractory, stable hypertension despite being treated with at least three hypertensive drugs
  • Two functioning kidneys, defined as eGFR >= 45 ml/min
  • At least one renal artery on each side which is greater than 4 mm.

Exclusion criteria

Exclusion Criteria:

  • History of nephrectomy or hydronephrosis
  • Renal stenosis > 50%
  • Renal stent
  • Ambulatory blood pressure monitoring 24 hour average systolic blood pressure \<= 135 mmHg
  • Kidney stones which are symptomatic and/or > 1 cm
  • History of abdominal surgery within the past 6 months
  • Heterogeneities in the kidneys (cysts or tumors)
  • Residual pyelonephritis
  • History of myocardial infarction, unstable angina pectoris, or cerebrovascular accident within the last 6 months
  • Hemodynamically significant valvular heart disease
  • Implantable cardioverter defibrillator, pacemaker, neurostimulator or other device incompatible with MRI
  • Body weight > 150 kilograms
  • Target treatment depth > 14 cm from the skin line
  • Pregnant, nursing or intends to become pregnant during the trial period
05

Study design

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

Study arms

  • Experimental
    Renal Denervation

    Renal Denervation using the Kona Surround Sound Externally Focused Therapeutic Ultrasound therapy.

    Device: Surround Sound Externally Focused Therapeutic Ultrasound

Interventions

  • DeviceSurround Sound Externally Focused Therapeutic Ultrasound

    Externally Focused Therapeutic Ultrasound using the Kona Surround Sound System

06

What researchers measure

Primary outcomes

  1. Safety

    Safety will be assessed by incidence and evaluation of any serious adverse effects associated with the investigational procedure through 52-week evaluation. Included in this assessment will be the proportion of subjects with any of the following outcomes: 1) death, or 2) medical morbidity.

    Time frame: 52-week post-treatment

Secondary outcomes

  1. Clinical Utility

    Clinical utility will be evaluated by comparing pre and post therapy systolic and diastolic blood pressure.

    Time frame: 52-week post-treatment

07

Study locations

3 sites
  • St. Anne's University Hospital
    Brno, Czechia
  • Nemocnice Na Homolee Hospital
    Prague, Czechia
  • Mercy Angiography
    Aukland, New Zealand
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 29, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01926951
Lead sponsor
Kona Medical Inc.
Responsible party
Sponsor
First posted
Aug 21, 2013
Start date
Sep 2013
Primary completion
Jun 2015
Completion
Jun 2015
Last update
Oct 29, 2015

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Oct 2015. You cannot join it, but the record below documents what was studied.

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