NCT02346045

Brief Summary

A. Hypertension is a major cardiovascular risk factor and numerous treatment strategies have been developed to treat hypertension properly and reduce cardiovascular risk. B. However, there is a subgroup of hypertension which are resistant to treatment.

  1. 1.Resistant hypertension is associated to sympathetic hyperactivity
  2. 2.Renal sympathetic nerve is known to be associated with systemic sympathetic activity
  3. 3.According to research of recent years, catheter based renal sympathetic denervation is a safe and effective treatment modality to treat resistant hypertension C. Resistant hypertension is observed in end stage renal disease (ESRD) frequently.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
40

participants targeted

Target at below P25 for phase_3 hypertension

Timeline
Completed

Started Sep 2014

Longer than P75 for phase_3 hypertension

Geographic Reach
1 country

4 active sites

Status
unknown

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

First Submitted

Initial submission to the registry

October 21, 2013

Completed
11 months until next milestone

Study Start

First participant enrolled

September 1, 2014

Completed
5 months until next milestone

First Posted

Study publicly available on registry

January 26, 2015

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2015

Completed
3.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2018

Completed
Last Updated

January 26, 2015

Status Verified

January 1, 2015

Enrollment Period

11 months

First QC Date

October 21, 2013

Last Update Submit

January 19, 2015

Conditions

Keywords

hypertension

Outcome Measures

Primary Outcomes (1)

  • The change of office systolic blood pressure after renal denervation

    6 month

Secondary Outcomes (4)

  • Change of office diastolic blood pressure

    6 month

  • change in ambulatory blood pressure monitroing(ABPM): mean systolic blood pressure(SBP)/diastolic blood pressure(DBP), mean heart rate(HR), BP variability

    6 month

  • Change in plasma norepinephrine

    6 months

  • Change in pulse wave velocity

    6 months

Study Arms (2)

Renal sympathetic denervation

EXPERIMENTAL

Renal sympathetic denervation procedure plus antihypertensive medication (doses and types of medication are maintained as previously prescribed)

Procedure: Renal sympathetic denervation

Medical therapy

SHAM COMPARATOR

renal angiogram plus antihypertensive medications (doses and types of medication are maintained as previously prescribed)

Procedure: Renal sympathetic denervation

Interventions

In the experimental arm, Intervention is renal sympathetic denervation using Symplicity® system (Medtronic Ardian Inc, Mountain View, CA, USA) and antihypertensive medications previously prescribed 1. After femoral puncture guiding catheter is engaged in renal artery 2. Symplicity radiofrequency ablation catheter is inserted into renal artery and by circular sequence, from distal to proximal portion, ablation energy is applied to the wall of renal artery 3. 4-5 ablations are applied in each renal artery. In the sham comparator, intervention is renal angiogram and continue antihypertensive medications previuosly decribed

Also known as: Catheter based based renal sympathetic denervation, Symplicity catheter system by Medtronic
Medical therapyRenal sympathetic denervation

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients who are under hemodialysis due to end stage renal disease
  • Patients who have resistant hypertension with office SBP \>160 mmHg)
  • Patients who are or over 18 years old.
  • Patients who submit informed consent

You may not qualify if:

  • Known secondary hypertension patients
  • Patients who have renal artery which is not adequate for renal denervation
  • The main renal artery diameter \< 4 mm, or renal artery length \< 20 mm
  • The renal arteries into which stable catheter insertion is difficulty and which have hemodynamically or anatomically significant stenosis
  • The renal arteries who have undergone renal angioplasty
  • Patients who have history of myocardial infarction, unstable angina, syncope cerebrovascular insufficiency or extensive atherosclerotic disease with intravascular thrombosis, or unstable plaque
  • Type 1 Diabetes
  • Patients who have scheduled percutaneous coronary intervention (PCI) or operation within 6 months
  • Hemodynamically significant valvular heart disease in which blood pressure reduction may cause significant deterioration of patient's health.
  • Primary pulmonary hypertension
  • Patients who have the intracardiac defibrillator(ICD) or pacemaker which do not allow delivery of radiofrequency energy.
  • Patients who require continuous oxygen supply or mechanical ventilation for treatment of obstructive sleep apnea
  • Patients who have serious medical condition which can compromise the safety of the patients and the safety and integrity of the study.
  • Patients who have unresolved drug issue, alcoholism
  • Patients who lack ability to understand and follow the instruction the researcher
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

Daejon St. Mary's Hospital

Daejeon, Chungchung Nam Do, 301-723, South Korea

RECRUITING

Chungnam National University

Daejeon, Chungchungnamdo, 301-721, South Korea

RECRUITING

Pohang St. Mary's Hospital

Pohang, Kyungsangnamdo, 790-825, South Korea

RECRUITING

Seoul St. Mary's Hospital

Seoul, Seoul, 137-701, South Korea

RECRUITING

Related Publications (3)

  • Schlaich MP, Bart B, Hering D, Walton A, Marusic P, Mahfoud F, Bohm M, Lambert EA, Krum H, Sobotka PA, Schmieder RE, Ika-Sari C, Eikelis N, Straznicky N, Lambert GW, Esler MD. Feasibility of catheter-based renal nerve ablation and effects on sympathetic nerve activity and blood pressure in patients with end-stage renal disease. Int J Cardiol. 2013 Oct 3;168(3):2214-20. doi: 10.1016/j.ijcard.2013.01.218. Epub 2013 Feb 28.

    PMID: 23453868BACKGROUND
  • Esler MD, Krum H, Schlaich M, Schmieder RE, Bohm M, Sobotka PA; Symplicity HTN-2 Investigators. Renal sympathetic denervation for treatment of drug-resistant hypertension: one-year results from the Symplicity HTN-2 randomized, controlled trial. Circulation. 2012 Dec 18;126(25):2976-82. doi: 10.1161/CIRCULATIONAHA.112.130880.

    PMID: 23248063BACKGROUND
  • Symplicity HTN-1 Investigators. Catheter-based renal sympathetic denervation for resistant hypertension: durability of blood pressure reduction out to 24 months. Hypertension. 2011 May;57(5):911-7. doi: 10.1161/HYPERTENSIONAHA.110.163014. Epub 2011 Mar 14.

    PMID: 21403086BACKGROUND

MeSH Terms

Conditions

Hypertension

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular Diseases

Study Officials

  • Kiyuk Chang, MD, PhD

    Seoul St. Mary's Hospital

    PRINCIPAL INVESTIGATOR
  • Sung Ho Her, MD, PhD

    Daejon St. Mary's Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Kiyuk Chang, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor, chief of division of cardiology

Study Record Dates

First Submitted

October 21, 2013

First Posted

January 26, 2015

Study Start

September 1, 2014

Primary Completion

August 1, 2015

Study Completion

October 1, 2018

Last Updated

January 26, 2015

Record last verified: 2015-01

Locations