Rheos® Pivotal Trial

NCT ID: NCT00442286

Last Updated: 2017-03-20

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

591 participants

Study Classification

INTERVENTIONAL

Study Start Date

2006-10-31

Study Completion Date

2016-01-31

Brief Summary

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The purpose of this clinical trial is to demonstrate the efficacy and safety of the Rheos system in subjects with hypertension that are resistant to treatment with at least three anti-hypertension agents, one of which is a diuretic.

Detailed Description

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Conditions

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Hypertension

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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On

Subject will be randomized to a 2:1 allocation to the Rheos ON or OFF arms at the time of Rheos System activation (time point 0). After the six month follow up evaluation, all subjects will have therapy activated, though subjects and treating physicians will not be informed of randomized treatment assignment.

Group Type EXPERIMENTAL

Rheos® Baroreflex Hypertension System

Intervention Type DEVICE

Electrical activation of the Carotid Baroreflex

Off

Subject will be randomized to a 2:1 allocation to the Rheos ON or OFF arms at the time of Rheos System activation (time point 0). After the six month follow up evaluation, all subjects will have therapy activated, though subjects and treating physicians will not be informed of randomized treatment assignment.

Group Type EXPERIMENTAL

Rheos® Baroreflex Hypertension System

Intervention Type DEVICE

Electrical activation of the Carotid Baroreflex

Interventions

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Rheos® Baroreflex Hypertension System

Electrical activation of the Carotid Baroreflex

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Be at least 21 years of age and no more than 80 years of age.
* Have been assessed with bilateral carotid bifurcations that are easily interrogated by carotid duplex ultrasound and are below the level of the mandible.
* Office cuff systolic blood pressure greater than or equal to 160 mmHg and have a diastolic blood pressure greater than or equal to 80 mmHg as well as a 24-hour ambulatory systolic blood pressure greater than or equal to 135 mmHg despite at lest one month of maximally tolerated therapy with at least three anti-hypertensive medications, of which at least one must be a diuretic.
* Must have completed the drug compliance questionnaire and have been judged to be compliant with medications.
* For subjects that have had prior bariatric surgery, they must be at least 1 year post-surgery and at a stable weight.
* If female, the subject must be surgically sterile, or using a medically accepted method of birth control and agree to continue use of this method for the duration of the trial. Women of childbearing potential must have a negative serum pregnancy test in the pre-implant blood evaluation.
* Must be an appropriate or reasonable surgical candidate.
* Have signed a CVRx approved informed consent form for participation in this study

Exclusion Criteria

* Have known or suspected baroreflex failure or autonomic neuropathy.
* Have an arm circumference greater than 46 cm and/or body mass index of greater than 45.
* Have significant cardiac bradyarrhythmias.
* Have chronic atrial fibrillation.
* Have significant orthostatic hypotension
* Had a solid organ or hematologic transplant.
* Had a myocardial infarction, unstable angina, syncope, or cerebral vascular accident within the past 3 months.
* Have carotid atherosclerosis producing a 50% or greater reduction in linear diameter as determined by ultrasound or angiographic evaluation as determined within 6 months of enrollment in the trial.
* Have ulcerative plaques in the carotid artery as determined by ultrasound or angiographic evaluation.
* Have prior surgery, radiation, or endovascular stent placement in either carotid sinus region.
* Have severe chronic kidney disease as defined by:

* Currently undergoing dialysis or dialysis is planned within 3 months of the implant date
* eGFR of ≤30 ml/min/1.73m²
* Have hypertension secondary to an identifiable and treatable cause other than sleep apnea.
* Have clinically significant cardiac structural valvular disease.
* Have clinically significant reactive airway disease, chronic obstructive pulmonary disease, and/or primary pulmonary hypertension.
* Have an uncontrolled comorbid medical condition that would adversely affect participation in the trial.
* Have a clinically significant psychological illness that would prohibit the subject's ability to meet the protocol requirements
* Are currently taking an imidazolone receptor agonist
* Are unable or unwilling to fulfill the protocol medication compliance and follow-up requirements.
* Have an active infection within the last month.
* Have a co-morbid condition that reduces life expectancy to less than one year.
* Are enrolled in another concurrent clinical trial, without prior approval of CVRx.
Minimum Eligible Age

21 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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CVRx, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Luis Sanchez, MD

Role: PRINCIPAL_INVESTIGATOR

Washington University School of Medicine

Mitra Nadim, MD

Role: PRINCIPAL_INVESTIGATOR

University of Southern California

Locations

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University of Alabama at Birmingham

Birmingham, Alabama, United States

Site Status

Apex Cardiology

Inglewood, California, United States

Site Status

University of Southern California

Los Angeles, California, United States

Site Status

St Joseph Health

Orange, California, United States

Site Status

George Washington University Hospital

Washington D.C., District of Columbia, United States

Site Status

VA Medical Center

Washington D.C., District of Columbia, United States

Site Status

Jacksonville Center for Clinical Research

Jacksonville, Florida, United States

Site Status

Florida Hospital Cardiovascular Institute

Orlando, Florida, United States

Site Status

Pensacola Research Consultants

Pensacola, Florida, United States

Site Status

The Heart and Vascular Institute of Florida

St. Petersburg, Florida, United States

Site Status

Florida Cardiovascular Institute

Tampa, Florida, United States

Site Status

Southeast Regional Research Group

Columbus, Georgia, United States

Site Status

University of Chicago, Dept. of Medicine, Section of Endocinology, Diabetes & Metabolism

Chicago, Illinois, United States

Site Status

The Care Group

Indianapolis, Indiana, United States

Site Status

Iowa Heart Center

West Des Moines, Iowa, United States

Site Status

The Center for Cardiovascular Studies, LLC

Shawnee Mission, Kansas, United States

Site Status

University of Kentucky

Lexington, Kentucky, United States

Site Status

Brigham & Womens Hospital

Boston, Massachusetts, United States

Site Status

Henry Ford Health System

Detroit, Michigan, United States

Site Status

University of Minnesota

Minneapolis, Minnesota, United States

Site Status

Washington University

St Louis, Missouri, United States

Site Status

Nebraska Heart Institute

Lincoln, Nebraska, United States

Site Status

Hackensack University Medical Center

Hackensack, New Jersey, United States

Site Status

Columbia University Medical Center

New York, New York, United States

Site Status

University of Rochester

Rochester, New York, United States

Site Status

Rex HealthCare

Raleigh, North Carolina, United States

Site Status

Forsyth Medical Center

Winston-Salem, North Carolina, United States

Site Status

The Lindner Clinical Trial Center

Cincinnati, Ohio, United States

Site Status

University Hospitals Case Medical Center

Cleveland, Ohio, United States

Site Status

Ohio State Medical Center

Columbus, Ohio, United States

Site Status

Jobst Vascular Center

Toledo, Ohio, United States

Site Status

Oklahoma Foundation for Cardiovascular Research

Oklahoma City, Oklahoma, United States

Site Status

Lancaster General Hospital

Lancaster, Pennsylvania, United States

Site Status

Temple University Health System

Philadelphia, Pennsylvania, United States

Site Status

Allegheny General Hospital

Pittsburgh, Pennsylvania, United States

Site Status

Sanford Clinical Research

Sioux Falls, South Dakota, United States

Site Status

Clinical Research Solutions, P.C.

Knoxville, Tennessee, United States

Site Status

Saint Thomas Research Institute

Nashville, Tennessee, United States

Site Status

The Methodist Hospital Research Institute

Houston, Texas, United States

Site Status

Scott and White Memoral Hospital

Temple, Texas, United States

Site Status

Virginia Commonwealth University

Richmond, Virginia, United States

Site Status

Swedish Medical Center

Seattle, Washington, United States

Site Status

Medizinische Hochschule Hannover

Hanover, , Germany

Site Status

University Hospital Maastricht

Maastricht, , Netherlands

Site Status

Countries

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United States Germany Netherlands

References

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Wachter R, Halbach M, Bakris GL, Bisognano JD, Haller H, Beige J, Kroon AA, Nadim MK, Lovett EG, Schafer JE, de Leeuw PW. An exploratory propensity score matched comparison of second-generation and first-generation baroreflex activation therapy systems. J Am Soc Hypertens. 2017 Feb;11(2):81-91. doi: 10.1016/j.jash.2016.12.003. Epub 2016 Dec 16.

Reference Type DERIVED
PMID: 28065708 (View on PubMed)

de Leeuw PW, Alnima T, Lovett E, Sica D, Bisognano J, Haller H, Kroon AA. Bilateral or unilateral stimulation for baroreflex activation therapy. Hypertension. 2015 Jan;65(1):187-92. doi: 10.1161/HYPERTENSIONAHA.114.04492. Epub 2014 Oct 20.

Reference Type DERIVED
PMID: 25331845 (View on PubMed)

Related Links

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http://www.bloodpressuretrial.com/

Additional information about the Rheos Pivotal Trial for patients and medical professionals can be found at http://www.bloodpressuretrial.com/

Other Identifiers

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360009

Identifier Type: -

Identifier Source: org_study_id

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