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Ventricular TachycardiaNCT04657705

Application of High Power Radio Frequency Energy in the Ventricular Tachycardia Treatment

A study testing High power ablation and Standard ablation power in people with Ventricular Tachycardia and Heart Diseases, run by Federal Research Clinical Center of Federal Medical & Biological Agency, Russia at 7 sites in 3 countries.

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

Background: Patient's freedom from VT after RFA remains non-optimal and it depends on many factors. One of them is the effective reduction of the myocardium with RF energy during the operation. The standardization of the parameters of RF will help to increase the success of the procedure. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Ventricular Tachycardia, Heart Diseases
What is being tested?
High power ablation and Standard ablation power
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
119 participants
Where
7 sitesin 3 countries
Study dates
5 Dec 2020to 27 Jan 2023
Phase
Interventional
Are there results?
None posted in the registry

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients after myocardial infarction (at least 3 months before enrollment in the study)
  • Stable, documented, monomorphic VT, confirmed by ECG and / or CMECG and / or EGM of any implanted device, having appropriate rhythm discrimination algorithms
  • Patients who have signed the informed consent

Who cannot join

  • Acute myocardial ischemia
  • A reversible cause of VT (e.g. drug arrhythmia), recently(up to 30 days) suffered from acute coronary syndrome, coronary revascularization (<90 days for bypass surgery, <30 days for percutaneous coronary intervention), or having functional class IV angina.
  • Thrombosis of the left ventricle
  • Patients who have been implanted the mechanical prostheses in the aortic and mitral positions.
  • Patients who have been performed the catheter RFA for VT.
  • Renal failure (creatinine clearance <15 ml / min),
Show all 10Show fewer
  • Patients with NYHA functional class IV heart failure
  • Patients with a medical condition that may limit survival to less than 1 year
  • Patients with myocardial infarction with ST-segment elevation or MI without ST-segment elevation, transferred less than 30 days ago.
  • Patients who haven't signed the informed consent

Trial locations and contacts

7 sites in 3 countries.

7 sites in 3 countries

Russia5 sites
  • Federal Research Clinical Center of Federal Medical & Biological Agency

    Moscow, 115682

  • National Medical Research Center of Surgery named after A. Vishnevsky

    Moscow, 117997

  • I.M. Sechenov First Moscow State Medical University

    Moscow, 119991

  • National Medical Research Center of Cardiology

    Moscow, 121552

  • Meshalkin National Medical Research Center

    Novosibirsk

Other trials in Russia

United States1 site
  • Texas Cardiac Arrhythmia Institute

    Austin, Texas, 78749

Other trials in United States

Germany1 site
  • Heart and Vascular Center

    Bad Bevensen

Other trials in Germany

About this study

Official title: Application of High Power Radio Frequency Energy in the Interventional Treatment of Patients With Ventricular Tachycardia and Structural Heart Disease

Background: Patient's freedom from VT after RFA remains non-optimal and it depends on many factors. One of them is the effective reduction of the myocardium with RF energy during the operation. The standardization of the parameters of RF will help to increase the success of the procedure.

Hypothesis: Radiofrequency ablation of ventricular tachycardias with high power parameters has comparable safety and leads to greater efficacy (absence of ventricular tachycardias and all types of cardioverter-defibrillator therapies) in the long-term compared with ablation with standard parameters in patients with structural heart disease.

Purpose: to evaluate the safety and the efficiency of ablation of ventricular tachycardia in patients with structural heart disease using high power RF energy.

Read the detailed description

Background: Patient's freedom from VT after RFA remains non-optimal and it depends on many factors. One of them is the effective reduction of the myocardium with RF energy during the operation. The standardization of the parameters of RF will help to increase the success of the procedure.

Hypothesis: Radiofrequency ablation of ventricular tachycardias with high power parameters has comparable safety and leads to greater efficacy (absence of ventricular tachycardias and all types of cardioverter-defibrillator therapies) in the long-term compared with ablation with standard parameters in patients with structural heart disease.

Purpose: to evaluate the safety and the efficiency of ablation of ventricular tachycardia in patients with structural heart disease using high power RF energy.

Tasks:

  1. To analyze the number of intraoperative complications in both groups
  2. To evaluate the number of recurrent ventricular tachycardias and the number of episodes of CDI therapy in the long-term follow-up period
  3. To estimate the time of onset of the first episode of VT and the overall burden of VT in the long-term follow-up period
  4. To compare the total time of surgery, fluoroscopy, the number and total time of RF exposure, as well as the ablation index in relation to the "acute" and separated efficiency of ablation in the study groups
  5. To estimate all-cause mortality in both groups
  6. The number of repeated ablation for recurrent VT
  7. The number of justified and unfounded CDI therapies
  8. To analyze the long-term burden of antiarrhythmic therapy
Being tested
High power ablation, Standard ablation power
Keywords
High Power Radio Frequency Energy, Ventricular Tachycardia, Structural Heart Disease
Medical subject headings
Tachycardia, Ventricular, Heart Diseases

What participants receive

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

  • High power ablationProcedure or surgery

    High power ablation parameters (50-55 W)

  • Standard ablation powerProcedure or surgery

    Standard ablation power parameters (40-45 W)

Study groups in NCT04657705
Study groupRoleWhat they receive
High power ablationExperimentalHigh power ablation parameters (50-55 W)
Receives: Procedure: High power ablation
Standard ablation powerActive comparatorStandard ablation power parameters (40-45 W)
Receives: Procedure: Standard ablation power

What is being measured

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

  1. The number of intraoperative complications

    The number of intraoperative complications (death, hemopericardium, stroke, heart attack, electrical storm, vascular complications)

    Measured: Day 1

  2. The inducibility of the clinical VT at the end of ablation procedure

    The number of patients with inducible VT at the end of the ablation procedure

    Measured: Day 1

  3. The number of recurrent ventricular tachycardias

    The number of recurrent ventricular tachycardias on one-year follow-up period after single procedure

    Measured: Up to one year

  4. The number of episodes of ICD therapy

    The number of episodes of ICD therapy on one-year follow-up period after single procedure

    Measured: Up to one year

Secondary outcomes (9)
  1. Freedom from recurrent VT

    Time to the first episode of VT on 3 months follow-up period after single procedure

    Measured: 3 months

  2. The total time of ablation procedure

    The total time of ablation procedure

    Measured: Up to one year

  3. The total time of fluoroscopy

    The total time of fluoroscopy

    Measured: Up to one year

  4. The total number of RF exposures

    The total number of RF exposures

    Measured: Up to one year

  5. The total time of RF exposures

    The total time of RF exposures

    Measured: Up to one year

  6. All-cause mortality

    All-cause mortality (Time to any death occurring at any time on one-year follow-up period )

    Measured: Up to one year

  7. The number of redo ablation procedures for recurrent VT

    The number of redo ablation procedures for recurrent VT on one-year follow-up period

    Measured: Up to one year

  8. The number of appropriate and unappropriated ICD therapies

    The number of appropriate and unappropriated ICD therapies

    Measured: Up to one year

  9. The number of antiarrhythmic drugs

    The number of antiarrhythmic drugs on one-year follow-up period

    Measured: Up to one year

Timeline

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

  1. First posted8 Dec 2020
  2. Study start5 Dec 2020
  3. Primary completion27 Jan 2023
  4. Study completion27 Jan 2023

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
119 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04657705
Sponsor's protocol ID
BURN VT
Status last verified
Jan 2023
First submitted
18 Sep 2020
Last updated
30 Jan 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: There is no current plan to share individual participant data (IPD).

Questions about this trial

What is this clinical trial studying?

A study testing High power ablation and Standard ablation power in people with Ventricular Tachycardia and Heart Diseases, run by Federal Research Clinical Center of Federal Medical & Biological Agency, Russia at 7 sites in 3 countries.

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 3 inclusion and 10 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 30 Jan 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in Russia, United States, Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

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.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

The number of intraoperative complications (time frame: Day 1). The study lists 4 primary outcomes in all. 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 30 Jan 2023.

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