Sham Controlled Study of Renal Denervation for Subjects With Uncontrolled Hypertension (WAVE_IV)

January 6, 2016 updated by: Kona Medical Inc.

Wave IV Study: Phase II Randomized Sham Controlled Study of Renal Denervation for Subjects With Uncontrolled Hypertension

To demonstrate that non-invasive renal denervation is safe and shows a net difference in blood pressure reduction when compared to sham in subjects with uncontrolled hypertension.

Study Overview

Detailed Description

This study is a sham controlled, double blind study of subjects with uncontrolled hypertension consisting of two arms, sham and therapy. Bilateral renal denervation will be performed non-invasively using the Kona Medical Surround Sound System which delivers focused ultrasound therapy to ablate the nerves surrounding the renal artery utilizing real time ultrasound for targeting and tracking.

Study Type

Interventional

Enrollment (Anticipated)

132

Phase

  • 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 Locations

      • Clayton, Australia
        • Terminated
        • Monash Medical Centre
      • Vienna, Austria
        • Recruiting
        • Medizinischen Universität Wien -UK für Klinische Pharmakologie
        • Principal Investigator:
          • Michael Wolzt, MD
      • Cali, Colombia
        • Terminated
        • Angiografia de Occidente, S.A.
      • Cali, Colombia
        • Terminated
        • CHD Cardio Centro de Excelencia SAS
      • Brno, Czech Republic
        • Active, not recruiting
        • St. Anne's University Hospital
      • Brno, Czech Republic
        • Active, not recruiting
        • University Hospital Brno
      • Ostrava, Czech Republic
        • Active, not recruiting
        • Městská Nomocnice Ostrava
      • Prague, Czech Republic
        • Withdrawn
        • General University Hospital
      • Prague, Czech Republic
        • Active, not recruiting
        • Nemocnice Na Homolee Hospital
      • Bonn, Germany
        • Recruiting
        • University Hospital Bonn
      • Erlangen, Germany
        • Recruiting
        • University Hospital of the University of Erlangen-Nuremberg
        • Contact:
        • Principal Investigator:
          • Roland Schmieder, MD
      • Frankfurt, Germany
        • Recruiting
        • CardioVascular Center Frankfurt - Sankt Katharinen Hospital
      • Hamburg, Germany
        • Recruiting
        • University Hospital Hamburg-Eppendorf
        • Contact:
          • Ulrich Wenzel Oberarzt, MD
          • Phone Number: +49(40) 7410-50026
          • Email: wenzel@uke.de
        • Principal Investigator:
          • Ulrich Wenzel Oberarzt, MD
      • Koln, Germany
        • Recruiting
        • Uniklinik Köln
        • Contact:
        • Principal Investigator:
          • Hannes Reuter
      • Leipzig, Germany
      • Luebeck, Germany
        • Recruiting
        • Sana CardioMed Nord
        • Contact:
      • Munich, Germany
        • Recruiting
        • Deutsches Herzzentrum Muenchen
        • Contact:
      • Münster, Germany
        • Recruiting
        • Clemens Hospital GmbH
        • Principal Investigator:
          • Peter Baumgart, MD
      • Aukland, New Zealand
        • Active, not recruiting
        • Mercy Angiography
      • Krakow, Poland
        • Recruiting
        • Oddział Kliniczny II Kliniki Kardiologii
        • Contact:
      • Warsaw, Poland
        • Recruiting
        • Institute of Cardiology
        • Contact:
      • Birmingham, United Kingdom
        • Recruiting
        • Birmingham Heartlands Hospital
        • Principal Investigator:
          • Indranil Desgupta, MD, DM, FRCP
      • Cardiff, United Kingdom
        • Recruiting
        • University Hospital Wales
        • Contact:
        • Principal Investigator:
          • James Coulson, MD
      • Exeter, United Kingdom
        • Recruiting
        • Royal Devon and Exeter Hospital
        • Contact:
        • Principal Investigator:
          • Andrew Sharp, MD
      • Glasgow, United Kingdom
        • Recruiting
        • University of Glasgow
        • Principal Investigator:
          • Alan Jardine
      • London, United Kingdom
        • Recruiting
        • St. Bartholomew's Hospital
        • Contact:
        • Principal Investigator:
          • Mel Lobo, MD, PhD
      • London, United Kingdom
        • Withdrawn
        • University College London
      • Southampton, United Kingdom
        • Recruiting
        • Southampton University Hospital
        • Contact:
        • Principal Investigator:
          • James Wilkinson, PhD FRCP

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

Ages Eligible for Study

18 years to 90 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Subject is at least 18 years of age and no more than 90 years of age
  2. Average SBP ≥ 160 mmHg
  3. 24 hour average ABPM daytime SBP ≥ 135 mmHg.
  4. No medication changes for a minimum of 1 months prior to screening.
  5. At minimum, subject must be on at least three antihypertensive medications, with one being a diuretic, and each must meet one or more of the following full dose criteria:

    1. Highest labeled dose according to medication's labeling;
    2. Highest usual dose per clinical guidelines JNC-7;
    3. Highest tolerated dose; and/or
    4. Highest appropriate dose for the subject per the PI's clinical judgment.
  6. Subject has two functioning kidneys.
  7. Subject has an eGFR value of ≥ 30 ml/min/1.73 m² (MDRD formula).

Exclusion Criteria:

  1. Subject has any secondary cause of hypertension
  2. Subject has evidence of clinically significant renal artery stenosis as determined by flow rate, velocity and Doppler analysis on ultrasound
  3. Subject has kidney stones that are of a size and location that are determined at discretion of the investigator to potentially interfere with treatment
  4. Subject has a history of intra-abdominal surgery within the past six months
  5. Subject has heterogeneities in the kidney such as large cysts or tumors that are determined at discretion of the investigator to potentially interfere with treatment.
  6. Stenotic valvular heart disease for which BP reduction would be hazardous as determined by referring physician.
  7. MI, unstable angina, or CVA in the prior 6 months.
  8. Known severe primary pulmonary HTN
  9. Subject has a history of myocardial infarction, unstable angina pectoris, or cerebrovascular accident within the last six months.
  10. Subject has hemodynamically significant valvular heart disease.
  11. Subject has BMI over 40 km/m^2
  12. Subject has a target treatment depth over 13 cm.
  13. Subject has anatomy that precludes treatment with the Kona Medical Surround Sound System.
  14. Subject is pregnant, nursing, or intends to become pregnant during the trial period.
  15. Subject is currently enrolled in other potentially confounding research.
  16. Subject has any condition that, at the discretion of the investigator, would preclude participation in the trial.
  17. Subject is unable, or unwilling, to comply with the protocol-required follow-up schedule

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: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: DOUBLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Investigational Therapy (Surround Sound)
Investigational Therapy using external focused ultrasound
Sham Comparator: Sham Control
Blinded Sham Control Arm

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Safety at 6 weeks follow-up
Time Frame: 6 weeks

Safety will be assessed by incidence of Major Adverse Events (MAE), defined as a composite of the following events at 6-weeks follow-up.

  • All cause mortality;
  • End-stage Renal Disease defined as eGFR < 15 ml/min or need for renal replacement therapy
  • Hospitalization for hypertensive crisis not related to confirmed non-adherence with medications as assessed by toxicological and other medical analyses and testing.

OR

- New renal artery stenosis > 70% confirmed by angiography within 6 months of randomization

6 weeks
Change in OBP
Time Frame: 6 months
Change in Office Systolic Blood Pressure (OBP) as measured from screening visit one to the 6 month post randomization follow-up visit.
6 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in ABPM
Time Frame: 6 months
Change in average 24-hour ambulatory blood pressure from screening to the 6 month follow-up visit
6 months

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Chronic Safety
Time Frame: 6 months

Chronic safety is assessed and compared between the control and treatment groups at 6 months post-randomization as follows:

  • Cardiovascular/Renal Death;
  • End stage Renal Disease
  • Increase in serum creatinine of > 50%; and
  • Hospitalization for hypertensive crisis not confirmed non-adherence with medications.
6 months
Reduction in blood pressure
Time Frame: 6 months
Reduction in systolic and diastolic blood pressure as compared between groups at time points through the 6 month follow-up period for interval differences of 10,15 and 20 mmHg.
6 months
Incidence of achieving target OBP
Time Frame: 6 months
Incidence of achieving target OBP (< 140 mmHg) through the 6 month follow-up period.
6 months
Reduction in anti-hypertensive medications
Time Frame: 6 months
Incidence of reductions in the number of anti-hypertensive medications and reductions in the doses of anti-hypertensive medications.
6 months
Changes in OBP
Time Frame: 24 months
Changes in OBP from screening to the 12, 18, and 24 month follow-up periods.
24 months
Changes in HR
Time Frame: 6 months
Changes in HR (as measured by OBP and ABPM) through the 6 month follow-up period.
6 months

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Roland Schmieder, MD, University Hospital of University of Erlangen-Nuremberg

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

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

August 1, 2014

Primary Completion (Anticipated)

March 1, 2016

Study Completion (Anticipated)

March 1, 2018

Study Registration Dates

First Submitted

January 6, 2014

First Submitted That Met QC Criteria

January 6, 2014

First Posted (Estimate)

January 8, 2014

Study Record Updates

Last Update Posted (Estimate)

January 8, 2016

Last Update Submitted That Met QC Criteria

January 6, 2016

Last Verified

January 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • KM14-001

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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