NCT01756300

Brief Summary

The RENABLATE feasibility study is a prospective, multi-center, non-randomized feasibility study to evaluate the safety and effectiveness of the investigational multi-electrode ablation catheter and integrated ablation system to treat resistant hypertension.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
35

participants targeted

Target at P50-P75 for phase_1

Timeline
Completed

Started Dec 2012

Typical duration for phase_1

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

December 1, 2012

Completed
19 days until next milestone

First Submitted

Initial submission to the registry

December 20, 2012

Completed
5 days until next milestone

First Posted

Study publicly available on registry

December 25, 2012

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2013

Completed
1.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2015

Completed
5 months until next milestone

Results Posted

Study results publicly available

August 25, 2015

Completed
Last Updated

February 4, 2025

Status Verified

January 1, 2025

Enrollment Period

11 months

First QC Date

December 20, 2012

Results QC Date

July 27, 2015

Last Update Submit

January 31, 2025

Conditions

Keywords

Essential HypertensionRenal DenervationVascular DiseaseRenal Catheter AblationPrimary Hypertension

Outcome Measures

Primary Outcomes (1)

  • The Incidence of Major Cardiovascular and/or Renal Adverse Events Related to the Renal Denervation Procedure That Occurred Within 30 Days Post-procedure.

    The major adverse events include Acute myocardial infarction, Death from progressive heart failure, death from aortic or peripheral artery disease, from renal failure and sudden cardiac death, New-onset heart failure, Stroke, Aortic or lower limb, revascularization procedure, Lower limb amputation, Beginning dialysis, Hospital admission for hypertensive emergency unrelated to non-adherence or non-persistence with drugs at each follow up visit, Hospitalization for atrial fibrillation.

    30 days post-procedure

Secondary Outcomes (5)

  • Subjects Experienced Any Adverse Cardiovascular and Renal Events Through 12 Months Post-procedure

    12 months post-procedure

  • Actual and Change in Office Systolic Blood Pressure and Diastolic Blood Pressure From Baseline to 1 ,3, 6 and 12 Months Post Procedure

    From baseline to 1 ,3, 6 and 12 months post procedure

  • Actual and Change in 24-hour Ambulatory Blood Pressure Monitoring (ABPM) Systolic Blood Pressure and Diastolic Blood Pressure From Baseline to 3, 6 and 12 Months Post Procedure

    From baseline to 3, 6 and 12 months post procedure

  • Incidence of Subjects Achieving Target Systolic Blood Pressure at 1, 3, 6, and 12 Month Post-procedure

    At 1, 3, 6, and 12 month post-procedure

  • Incidence of Subjects Achieving at Least 10 mmHg Systolic Blood Pressure Reduction From Baseline at 1, 3, 6, and 12 Month Post-procedure

    At 1, 3, 6, and 12 month post-procedure

Study Arms (1)

Resistant Hypertension

EXPERIMENTAL

The catheter-based (device: Celsius® ThermoCool® RD) renal denervation will serve to treat resistant hypertension.

Device: Celsius® ThermoCool® RD

Interventions

The investigational device is designed to transmit radiofrequency (RF) current to the electrodes for ablation purposes, specifically for the treatment of resistant hypertension by renal denervation.

Also known as: Multi-electrode Ablation Catheter
Resistant Hypertension

Eligibility Criteria

Age19 Years - 84 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subject is \> 18 and \< 85 years old.
  • Individual has a systolic blood pressure ≥ 160 mmHg (≥ 150 mmHg for type 2 diabetics) based on an average of 3 office blood pressure readings.
  • Individual is adhering to a stable drug regimen of at least 3 different classes of anti-hypertensive medications, including a diuretic (with no changes for a minimum of 2 weeks prior to enrollment) at optimal dose and is expected to be maintained for at least 6 months.
  • Individual agrees to have all study procedures performed, and is competent and willing to provide written, informed consent to participate in this study.

You may not qualify if:

  • Subjects with known/diagnosed secondary hypertension.
  • Subject has 'White Coat' hypertension defined as 24 hour daytime systolic blood pressure \<135 mm Hg as evaluated at Baseline visit.
  • Subject has aorto-ilio-femoral artery anatomy not suitable for treatment with the investigational Celsius® ThermoCool® RD Multi-electrode Ablation Catheter.
  • Subject has main renal arteries that are \< 20 mm in length or \< 4 mm in diameter.
  • Subject has multiple main renal arteries in either kidney.
  • Subject has a history of prior renal artery intervention including balloon angioplasty, stenting or surgery.
  • Subject had a previous kidney transplant or is a planned recipient of a transplant kidney or is on dialysis.
  • Subject has a past history of unilateral kidney removal or has a solitary functional kidney for any other reason.
  • Subject has an estimated glomerular filtration rate (eGFR) of \< 45mL/min/1.73m2, using the MDRD formula.
  • Subject has type 1 diabetes mellitus.
  • Subject has history of Myocardial Infarction, unstable angina pectoris, or a cerebrovascular accident in the 6 months period prior to enrolment, or documented widespread atherosclerosis, intravascular thrombosis or unstable plaques.
  • Subject had a significant surgery or cardiovascular intervention in the 6 months period preceding enrollment or is planned to have such a surgery or cardiac intervention in the 6 months period post enrollment.
  • Subject has hemodynamically significant valvular heart disease for which reduction of blood pressure would be considered hazardous.
  • Subject is taking systemic steroids or chronic daily NSAIDs.
  • Subject has a known allergy to Aspirin and/or other procedural drugs or contrast agents which in the investigator's opinion excludes him/her from the study.
  • +4 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Hypertension, RenalEssential HypertensionVascular Diseases

Condition Hierarchy (Ancestors)

Kidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesHypertensionCardiovascular Diseases

Results Point of Contact

Title
Liesbeth Vanderlinden, Manager Clinical Research
Organization
Biosense Webster, EMEA

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 20, 2012

First Posted

December 25, 2012

Study Start

December 1, 2012

Primary Completion

November 1, 2013

Study Completion

April 1, 2015

Last Updated

February 4, 2025

Results First Posted

August 25, 2015

Record last verified: 2025-01