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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/ct2/show/NCT01638195
Registration number
NCT01638195
Ethics application status
Date submitted
8/07/2012
Date registered
11/07/2012
Date last updated
13/04/2015
Titles & IDs
Public title
A Safety Evaluation of Renal Denervation Using Focused Therapeutic Ultrasound on Patients With Refractory Hypertension
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Scientific title
A Feasibility Study: A Safety Evaluation of Renal Denervation Using Focused Therapeutic Ultrasound on Patients With Refractory Hypertension
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Secondary ID [1]
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KM11-002
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Hypertension
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Condition category
Condition code
Cardiovascular
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Hypertension
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Devices - Focused Ultrasound
Experimental: Externally Focused Ultrasound -
Treatment: Devices: Focused Ultrasound
Focused Ultrasound
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Intervention code [1]
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Treatment: Devices
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Safety
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Assessment method [1]
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Safety will be assessed by incidence and evaluation of any serious adverse effects associated with the investigational procedure through the 52-week evaluation of bilateral treatment. Included in this assessment will be the proportion of subjects with any of the following outcomes: (1) death, or (2) medical morbidity, including but not limited to renal artery aneurysm, stenosis, significant deterioration of renal function, fistulae or urethral stenosis.
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Timepoint [1]
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52 weeks post-treatment
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Secondary outcome [1]
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Blood Pressure Reduction
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Assessment method [1]
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Timepoint [1]
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52 weeks post-treatment
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Eligibility
Key inclusion criteria
- Subject is at least 18 years of age.
- Subject has systolic blood pressure of 160 mmHg or greater.
- Subject has refractory, stable hypertension despite being treated with at least three
hypertensive drugs.
- Subject has two functioning kidneys, defined as eGFR = 60 ml/min.
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
- Subject has history of nephrectomy, kidney tumor or hydronephrosis.
- Subject has renal stenosis greater than 50%.
- Subject has presence of accessory renal artery with lumen = 3 mm.
- Subject has a renal stent.
- Subject has end stage renal disease requiring dialysis or renal implant.
- Subject has Serum Cr > 3.0 mg/dL or equivalent calculated Glomerular Filtration Rate
(GFR).
- Subject has a history of kidney stones.
- Subject has a history of abdominal surgery.
- Subject has a history of heterogeneities in the kidney such as cysts or tumors.
- Subject has a history of pyelonephritis.
- Subject has a history of myocardial infarction, unstable angina pectoris, or
cerebrovascular accident within the last six months.
- Subject has hemodynamically significant valvular heart disease.
- Subject has an implantable cardioverter defibrillator, pacemaker, neurostimulator or
other device incompatible with MRI.
- Subject has a body weight > 150 kilograms.
- Subject has a target treatment depth > 14 cm.
- Subject is pregnant, nursing or intends to become pregnant during the trial period.
- Subject is currently enrolled in other potentially confounding research.
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Study design
Purpose of the study
Treatment
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Allocation to intervention
N/A
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
Phase 1
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/06/2012
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
1/09/2014
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Sample size
Target
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Accrual to date
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Final
18
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Recruitment in Australia
Recruitment state(s)
VIC
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Recruitment hospital [1]
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St. Vincent's Hospital - Melbourne
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Recruitment postcode(s) [1]
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- Melbourne
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Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
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Name
Kona Medical Inc.
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
This study is a prospective, single-institution trial wherein twenty subjects with refractory
hypertension will receive the experimental focused ultrasound renal denervation therapy.
Safety will be assessed by incidence and evaluation of serious adverse effects associated
with the investigational procedure through 52-week evaluation of bilateral treatment.
Clinical utility will also be evaluated by comparison pre and post therapy systolic and
diastolic blood pressure and norepinephrine spillover.
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Trial website
https://clinicaltrials.gov/ct2/show/NCT01638195
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Robert Whitbourn, M.D.
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Address
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St Vincent's Hospital
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for scientific queries
Summary Results
For IPD and results data, please see
https://clinicaltrials.gov/ct2/show/NCT01638195
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