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Hypertension, RenalPhase 1RENABLATE-IINCT02095691

RENABLATE-II Feasibility Study of Catheter Based Renal Denervation to Treat Resistant Hypertension - 157

A Phase 1 study testing Celsius® ThermoCool® Renal Denervation in people with Hypertension, Renal, run by Biosense Webster, Inc..

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a prospective, multi-center, non-randomized, feasibility study to assess the safety and effectiveness of renal artery sympathetic denervation using the investigational devices in subjects with resistant hypertension. Read more about this study

Who is it for?
Ages 18 to 85 years
Conditions the study is for
Hypertension, Renal
What is being tested?
Celsius® ThermoCool® Renal Denervation
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
19 participants
Where
No sites listed yet
Study dates
Oct 2013to Apr 2015
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subject has a systolic blood pressure ≥ 140 mmHg based on an average of 3 office blood pressure readings measured according to the BP guidelines.
  • Subject 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.
  • Subject is > 18 and < 85 years of age.
  • Subject agrees to have all study procedures performed, and is competent and willing to provide written, informed consent to participate in this study.

Who cannot join

  • A secondary cause of hypertension, e.g. "white coat" hypertension (assessed by 24 h ABPM at physician's discretion), primary aldosteronism, pheochromocytoma, renal artery stenosis, drug induced-hypertension, Adult Polycystic kidney Disease, renal cell carcinoma, pyelonephritis, glomerulonephritis, coarctation of the aorta, acromegaly, Cushing's Syndrome, Conn's (primary hyperaldosteronism), polyarteritis nodosum, systemic sclerosis, parenchymal kidney disease, obstructive sleep apnoea based on a workup performed within the 12 months preceding enrollment.
  • Subject has aorto-ilio-femoral artery anatomy not suitable for treatment with the investigational device(s).
  • Subject has main renal arteries that are < 20 mm in length or < 4 mm in diameter.
  • Subject has a prior history of any renal artery intervention including but not limited to balloon angioplasty, stenting, renal denervation or surgery.
  • 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 has hemodynamically significant valvular heart disease for which reduction of blood pressure would be considered hazardous.

About this study

Official title: A Prospective, Multi-center, Non-Randomized, Feasibility Study of Catheter Based Renal Denervation to Treat Resistant Hypertension (RENABLATE-II - 157)

This is a prospective, multi-center, non-randomized, feasibility study to assess the safety and effectiveness of renal artery sympathetic denervation using the investigational devices in subjects with resistant hypertension.

Being tested
Celsius® ThermoCool® Renal Denervation
Keywords
Renal Sympathetic Denervation
Medical subject headings
Hypertension, Renal

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Celsius® ThermoCool® Renal DenervationDevice

    Also called Multi-electrode Ablation Catheter

    The investigational device is indicated for the treatment of resistant hypertension by renal denervation.

Study groups in NCT02095691
Study groupRoleWhat they receive
Resistant HypertensionExperimentalThe Celsius® ThermoCool® Renal Denervation catheter will serve to treat resistant hypertension.
Receives: Device: Celsius® ThermoCool® Renal Denervation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of Major Adverse Events That Occurred Within 30 Days Post-procedure.

    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.

    Measured: 30 days post-procedure

Secondary outcomes (4)
  1. Incidence of Adverse Cardiovascular and Renal Events Within the 12 Month Follow-up Visit

    These adverse events include renal artery stenosis (≥60% diameter reduction confirmed by MRI or renal angiography); peri-procedural renal artery dissection or perforation requiring intervention, serious arterial access site related complications requiring intervention or prolonging hospitalization; ≥25% reduction between baseline and 12 months in renal function measured by the estimated Glomerular Filtration Rate (eGFR), as well as composite of major adverse cardiovascular and/or renal events.

    Measured: 12 months post-procedure

  2. Mean Change in Office Systolic Blood Pressure and Diastolic Blood Pressure From Baseline to 1 ,3, 6 and 12 Months Post Procedure

    Office systolic blood pressure (SBP) and diastolic blood pressure (DBP) measures were summarized to assess the reduction in blood pressure from baseline visit to post baseline at 1, 3, 6, and 12 months. Negative values for change represent reductions.

    Measured: 12 months post-procedure

  3. Incidence of Subjects Achieving Target Systolic Blood Pressure (SBP) at 1, 3, 6 and 12 Months Post Procedure

    The pre-specified target SBP is defined as SBP <130 mmHg. This endpoint is defined at each of 1, 3, 6 and 12 months post procedure.

    Measured: 12 months post-procedure

  4. Incidence of Subjects Achieving a ≥ 10 mmHg Reduction in Systolic Blood Pressure (SBP) at 1, 3, 6 and 12 Months Post Procedure

    Incidence of subjects achieving a 10 mmHg or more reduction in Systolic Blood Pressure (SBP) at 1, 3, 6 and 12 months post procedure.

    Measured: 12 months post-procedure

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Mar 2014 (estimated)
  2. Study startOct 2013
  3. Primary completionMar 2014
  4. Study completionApr 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
19 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02095691
Sponsor's protocol ID
RENABLATE-II
Acronym
RENABLATE-II
Status last verified
Jan 2025
First submitted
21 Mar 2014
Last updated
4 Feb 2025
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Celsius® ThermoCool® Renal Denervation in people with Hypertension, Renal, run by Biosense Webster, Inc..

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 7 Dec 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of Major Adverse Events That Occurred Within 30 Days Post-procedure. (time frame: 30 days post-procedure). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Feb 2025.

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