NCT01077180

Brief Summary

The Rheos Feasibility Trial is designed to assess safety, device performance, and protocol parameters of the CVRx Rheos Baroreflex Therapy in patients with severe hypertension that are refractory to full drug therapy.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
16

participants targeted

Target at below P25 for phase_2 hypertension

Timeline
Completed

Started Jan 2005

Longer than P75 for phase_2 hypertension

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2005

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2007

Completed
2.2 years until next milestone

First Submitted

Initial submission to the registry

February 25, 2010

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 26, 2010

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2010

Completed
Last Updated

July 2, 2019

Status Verified

October 1, 2016

Enrollment Period

2.9 years

First QC Date

February 25, 2010

Last Update Submit

June 28, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Rheos Feasibility Study

    To summarize the efficacy of the Rheos System by estimating the reduction of systolic blood pressure associated with activation of the Rheos System at 4 and 13 months post implant when compared to baseline (1-month post implant). To describe the safety of the Rheos System by summarizing all system related adverse events and estimating the serious sytem related event-free rate through 4 and 13 months post-implant.

    13 months

Study Arms (2)

Rheos Device

EXPERIMENTAL
Device: Implantation of the Rheos System

Medical Management

ACTIVE COMPARATOR
Other: Standard of care medical management

Interventions

Open label

Rheos Device

Patients will continue with medical therapy for standard of care of their hypertension.

Medical Management

Eligibility Criteria

Age21 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Be at least 21 years of age.
  • Have been assessed to have bilateral carotid bifurcations located at or below C3-C4.
  • Have an office cuff systolic blood pressure greater than or equal to 160 mmHg and a 24-hour ambulatory systolic blood pressure greater than or equal to 150 mmHg despite at least one month of full therapy with at least three (3) anti-hypertensive medications, of which at least one (1) must be a diuretic.
  • Must be certified by the investigator hypertension specialist as compliant with taking full doses of medication.
  • Have signed a CVRx approved informed consent for participation in this study.

You may not qualify if:

  • Have been diagnosed with:
  • Baroreflex failure
  • Cardiac bradyarrhythmias
  • Chronic atrial fibrillation
  • Had a heart transplant
  • Have carotid atherosclerosis producing a 50% or greater reduction in linear diameter as determined by ultrasound or angiographic evaluation as determined within six months of enrollment in the trial.
  • Have Grade C ulcerative plaques in the carotid artery as determined by ultrasound or angiographic evaluation.
  • Have prior surgery or radiation in either carotid sinus region.
  • Currently have implanted electrical medical devices such as cardiac pacing, defibrillation or neurologic stimulation systems.
  • Are pregnant or contemplating pregnancy during the 13-month follow-up period.
  • Currently undergoing dialysis.
  • Have hypertension secondary to a treatable cause.
  • Have clinically significant cardiac valvular disease.
  • Are unable or unwilling to fulfill the protocol medication compliance and follow-up requirements.
  • Are unlikely to survive the protocol follow-up period.
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Hypertension

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular Diseases

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 25, 2010

First Posted

February 26, 2010

Study Start

January 1, 2005

Primary Completion

December 1, 2007

Study Completion

October 1, 2010

Last Updated

July 2, 2019

Record last verified: 2016-10