Denervation of the REnal Artery in Metabolic Syndrome

Last updated: December 28, 2014
Sponsor: UMC Utrecht
Overall Status: Completed

Phase

3

Condition

Stress

Diabetes (Pediatric)

Diabetes Prevention

Treatment

N/A

Clinical Study ID

NCT01465724
11-265
  • Ages > 18
  • All Genders

Study Summary

The current prevalence of hypertension as part of the metabolic syndrome is substantial and is increasing with the rise of obesity worldwide. Chronic elevation of sympathetic nervous system (SNS) activity has been identified as a common and key factor in disease states as obesity-related hypertension (ORH). The renal sympathetic nerves are a major contributor to the complex pathophysiology of this elevated SNS activity. Percutaneous renal denervation (PRDN), the deliberate disruption of the nerves connecting the kidneys with the central nervous system, has been shown to be an effective means of modulating elevated SNS activity.

This current study is an observational feasibility study, with the aim to investigate the effect of renal denervation on changes in insulin resistance and blood pressure in patients with obesity related hypertension. The investigators will study different variables: a laboratorial set, a set of blood pressure measurements and a set of investigations in the vascular laboratory.

Hypothesis

  • The investigators hypothesize that renal denervation has a beneficial effect on insulin resistance.

  • The investigators hypothesize that there will be no complications related to the device or procedure.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Patients should have a high fasting glucose (fasting serum glucose ≥5.6 mmol/L (≥100mg/dL)), without the use of antidiabetic drugs at the time of inclusion AND shouldhave a 24 hour ambulatory SBP >130 mmHg, without the use of antihypertensive drugs atthe time of inclusion.

  • Patients should fulfil one or more other criteria to meet the definition of themetabolic syndrome.

  • Individual understands the study procedures, alternative treatments available, risksinvolved with the study and voluntarily agrees to participate by giving informedconsent.

  • Individual is over 18 years of age on the day of signing informed consent.

Exclusion

Exclusion Criteria:

  • SBP >180 mmHg and/or DBP >110 mmHg during one or more screening measurements.

  • 24-hour ambulatory SBP >170 mmHg and/or 24-hour ambulatory DBP >100 mmHg at time ofinclusion.

  • Individual is treated with more than one type of antihypertensive medication at timeof inclusion.

  • Individual is treated with more than one type of drug for diabetes mellitus 2 at timeof inclusion and/or the medication for DM type 2 can not be stopped.

  • Individual has a treatable secondary cause of hypertension.

  • Individual has renal artery anatomy that is ineligible for treatment.

  • Individual has an estimated glomerular filtration rate (eGFR) of <45mL/min/1.73m2,using the MDRD calculation.

  • Individual has type 1 diabetes mellitus.

  • Individual has experienced a myocardial infarction, unstable angina pectoris, or acerebrovascular accident within 6 months of the screening visit, or has widespreadatherosclerosis, with documented intravascular thrombosis or unstable plaques.

  • Individual has scheduled or planned surgery or cardiovascular intervention in the next 6 months.

  • Individual has hemodynamically significant valvular heart disease for which reductionof BP would be considered hazardous.

  • Individual has an implantable cardioverter defibrillator (ICD) or pacemaker whosesettings cannot allow for RF energy delivery.

  • Individual has any serious medical condition, which in the opinion of theinvestigator, may adversely affect the safety and/or effectiveness of the participantor the study (i.e., patients with clinically significant peripheral vascular disease,abdominal aortic aneurysm, bleeding disorders such as thrombocytopenia, haemophilia,or significant anaemia).

  • Individual is pregnant, nursing or planning to be pregnant.

  • Individual has a known, unresolved history of drug use or alcohol dependency, lacksthe ability to comprehend or follow instructions, or would be unlikely or unable tocomply with study follow-up requirements.

  • Individual is currently enrolled in another investigational drug or device trial.

  • Individual is currently being treated with any of the following medications:

  • Drugs that cause salt retention (e.g., systemic corticosteroids andfludrocortisone)

  • Acenocoumarol or phenprocoumon that cannot be temporarily stopped for theprocedure.

Study Design

Total Participants: 29
Study Start date:
November 01, 2011
Estimated Completion Date:
September 30, 2014

Study Description

Objectives: The objectives of this study are: to compare changes in insulin resistance in patients with ORH after RDN; to evaluate the safety of PRDN in this patient group; to compare changes in blood pressure, laboratory parameters, arterial stiffness and SNS-activity after PRDN.

Study design: Prospective observational feasibility-study.

Study population: Patients with a high fasting glucose (fasting serum glucose ≥5.6 mmol/L(100 mg/dL)) and with an ambulatory systolic blood pressure >130mmHg.

Major endpoints: The effect of RDN on: insulin resistance, blood pressure and major adverse events.

Connect with a study center

  • UMC Utrecht

    Utrecht,
    Netherlands

    Site Not Available

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