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Status unknownNCT02608632Updated Nov 20, 2015

HFS-guided Renal Ablation for Improving Outcome of Renal Denervation Procedure

A Phase 2 interventional study of Renal denervation guided by HFS and Renal denervation as standard procedure in Hypertension, sponsored by Meshalkin Research Institute of Pathology of Circulation. Status unknown at 3 sites in Russian Federation. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2015-11-20.

Sponsored by Meshalkin Research Institute of Pathology of Circulation · Phase 2, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Nov 2015), so the status shown — last known as Active, not recruiting — may be out of date.
Phase
Phase 2
Study type
Interventional
Enrollment
170
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

To increase the number of responders using HFS-guided renal artery denervation (RDN) in patients with resistant and moderate resistant hypertension

02

Conditions studied

  • Hypertension

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Keywords

  • Renal denervation
  • Ablation
03

In context

Hypertension

6,689 studies on the registry are indexed under Hypertension; 965 are open to participants now.

This study's planned enrollment of 170 is above the median of 90 across 4,995 interventional studies indexed under Hypertension.

Browse Hypertension studies →

Lead sponsor

Meshalkin Research Institute of Pathology of Circulation is the lead sponsor of 114 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Office-based systolic blood pressure of ≥140/90 mm Hg and \<160/100 mm Hg (moderate resistant hypertension) or ≥160/100 mm Hg (severe resistant hypertension), despite treatment with 3 antihypertensive drugs (including a diuretic).
  • A glomerular filtration rate ≥45 mL/min/1⋅73 m2, with modification of diet using a renal disease formula.

Exclusion criteria

Exclusion Criteria:

  • Secondary causes of hypertension
  • Severe renal artery stenosis or dual renal arteries
  • Congestive heart failure
  • Left ventricular ejection fraction \<35%
  • Previous renal artery stenting or angioplasty
  • Type 1 diabetes mellitus
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
170 participants (estimated)

Study arms

  • Experimental
    Group 1 (RDN guided by HFS)

    Renal arteries were assessed for suitability of ablation by renal angiography. The real-time 3-dimensional aorta-renal artery maps were reconstructed with the use of navigation system and ablation catheter via femoral artery access. After that high-frequency stimulation (HFS) was used before the initial and after each radiofrequency (RF) delivery within the renal artery. RDN was considered to have been achieved when the sudden increase of blood pressure (\> 15 mm Hg from invasive arterial monitoring) was eliminated in response to HFS. RF ablations of 8-12 watts (impedance drop \>10%) were applied discretely from the first distal main renal artery bifurcation all the way back to the ostium. The duration of each RF delivery was 60-120 sec, and up to 6 lesions (separated by \> 5 mm) were performed both longitudinally and rotationally within each renal artery.

    Device: Renal denervation guided by HFS

  • Active comparator
    Group 2 (RDN as standard procedure)

    Renal arteries were assessed for suitability of ablation by renal angiography. The real-time 3-dimensional aorta-renal artery maps were reconstructed with the use of navigation system and ablation catheter via femoral artery access. RF ablations of 8-12 watts (impedance drop \>10%) were applied discretely from the first distal main renal artery bifurcation all the way back to the ostium. The duration of each RF delivery was 60-120 sec, and up to 6 lesions (separated by \> 5 mm) were performed both longitudinally and rotationally within each renal artery. High-frequency stimulation (HFS) was performed before and after RDN to just to verify the response of BP

    Device: Renal denervation as standard procedure

Interventions

  • DeviceRenal denervation guided by HFS
  • DeviceRenal denervation as standard procedure
06

What researchers measure

Primary outcomes

  1. number of responders to renal denervation procedure

    Time frame: 12 month

Secondary outcomes

  1. complications rate

    Time frame: 12 month

  2. cross-over rate

    Time frame: 12 month

07

Study locations

3 sites
  • Federal Center of Cardiovascular surgery
    Krasnoyarsk, Russian Federation
  • Regional Hospital
    Krasnoyarsk, Russian Federation
  • Federal Center of Prophylactic Medicine
    Moscow, Russian Federation
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 20, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02608632
Lead sponsor
Meshalkin Research Institute of Pathology of Circulation
Responsible party
Sponsor
First posted
Nov 20, 2015
Start date
Feb 2013
Primary completion
Dec 2015 (estimated)
Completion
Feb 2016 (estimated)
Last update
Nov 20, 2015

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Nov 2015. You cannot join it, but the record below documents what was studied.

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