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Hypertrophic Obstructive CardiomyopathyNCT04355260

The Clinical Research of the Safety and Effectiveness Evaluation for Using Echocardiography-guided Liwen RF Radiofrequency Ablation System to Treat Hypertrophic Obstructive Cardiomyopathy

A study testing Echocardiography-guided Radiofrequency ablation for Hypertrophic obstructive Cardiomyopathy (HOCM). in people with Hypertrophic Obstructive Cardiomyopathy, run by Xijing Hospital at 1 site in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Objective to investigate the safety and effectiveness of Echocardiography-guided radiofrequency ablation in patients with Hypertrophic obstructive Cardiomyopathy (HOCM). Percutaneous intramyocardial septal radiofrequency ablation (Liwen Procedure) is a safe and effective treatment approach for Hypertrophic obstructive… Read more about this study

Who is it for?
Any age
Conditions the study is for
Hypertrophic Obstructive Cardiomyopathy
What is being tested?
Echocardiography-guided Radiofrequency ablation for Hypertrophic obstructive Cardiomyopathy (HOCM).
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
150 participants
Where
1 siteChina
Study dates
30 Jul 2019to 31 Jul 2021
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Subject has pressure gradient of left ventricular outflow tract (LVOT) ≥50 mmHg(with Systolic Anterior Motion)in the resting-state or after exercise stress test.
  • Subject with obvious clinical symptoms.
  • Subject with New York Heart Association (NYHA) cardiac function ≥ II grade.
  • Subject with adequate drug treatment is not effective or cannot tolerate side effects of the drug.
  • Subject was informed of the nature of the clinical study and agreed to participate in all the requirements of the clinical study, signed an informed consent form, and agreed to complete the following checks.

Who cannot join

  • Subject is pregnant, lactating, or planned to conceive during a clinical study.
  • Subject with Hypertrophic Non-obstructive Cardiomyopathy.
  • Subject with interventricular septal thickness ≥ 30mm.
  • Subject with Sudden Cardiac Death Index ≥ 10%.
  • Subject combined with other heart diseases requires surgical treatment.
  • Subject with heart failure(Defined as resting heart failure after intensive anti-heart failure therapy, left ventricular fraction of ejecting< 40%).

Trial locations and contacts

1 site in 1 country.

China1 site, 1 recruiting
  • Ultrasound Medicine Department of Xijing Hospital, Fourth Military Medical University

    Xi'an, Shaanxi, 710032

    LiWen Liu, MD, 86-13571975528

    Recruiting

Other trials in China

About this study

Official title: To Evaluate the Safety and Effectiveness Evaluation of Using Echocardiography-guided Liwen RF Radiofrequency Ablation System to Treat Hypertrophic Obstructive Cardiomyopathy

Objective to investigate the safety and effectiveness of Echocardiography-guided radiofrequency ablation in patients with Hypertrophic obstructive Cardiomyopathy (HOCM).

Percutaneous intramyocardial septal radiofrequency ablation (Liwen Procedure) is a safe and effective treatment approach for Hypertrophic obstructive Cardiomyopathy and results in sustained improvement in exercise capacity, persistent in reducing Left Ventricle Outflow Tract (LVOT) gradient, and sustained improvement in cardiac function.

Read more

In patients with disabling symptoms caused by Hypertrophic obstructive Cardiomyopathy (HOCM),Echocardiography-guided radiofrequency ablation could be a less invasive treatment option.

Percutaneous intramyocardial septal radiofrequency ablation (Liwen Procedure) is a new method for the diagnosis or treatment of heart disease by using a special diagnosis and treatment device to the heart target area under the guidance of image technology. The method breaks through the worldwide problem of the minimally invasive diagnosis and treatment of the myocardium on the beating heart, so as to avoid the X-ray radiation and contrast agent damage .

As a new pathway of cardiac disease intervention, Liwen Procedure can be used in congenital heart disease, myocardial biopsies, drug injection, cell implantation and instrument implantation in addition to Hypertrophic Cardiomyopathy and cardiac tumors. It has important clinical value and broad application prospect.

In this study, Liwen RF radiofrequency ablation system was used to treat HOCM , and evaluate its safety and effectiveness , in order to provide a new medical device for Liwen Procedure of HOCM.

Being tested
Echocardiography-guided Radiofrequency ablation for Hypertrophic obstructive Cardiomyopathy (HOCM).
Keywords
Cardiomyopathy, hypertrophic;techniques; Treatment outcome
Medical subject headings
Cardiomyopathy, Hypertrophic, Cardiomyopathies

What participants receive

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

  • Echocardiography-guided Radiofrequency ablation for Hypertrophic obstructive Cardiomyopathy (HOCM).Procedure or surgery

    Echocardiography-guided Radiofrequency ablation for Hypertrophic obstructive Cardiomyopathy (HOCM).

Study groups in NCT04355260
Study groupRoleWhat they receive
Hypertrophic Obstructive CardiomyopathyExperimentalNot described
Receives: Procedure: Echocardiography-guided Radiofrequency ablation for Hypertrophic obstructive Cardiomyopathy (HOCM).

What is being measured

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

  1. Main adverse event

    Any instrument or surgery-related complications, including but not limited to death, emergency surgery, severe pericardial tamponade requiring pericardiocentesis or surgery, bleeding, surgery-related stroke.

    Measured: 30 days

Secondary outcomes (4)
  1. Instrument success

    Radiofrequency ablation system instruments reach the desired treatment site and successfully complete ablation,and remove the system successfully.

    Measured: 30 days

  2. Operation success

    Improvement of LVOTG > 50% within 90 days after operation

    Measured: 90 days

  3. No main adverse events related to instruments or surgery within 90 days of instrument use

    Measured: 90 days

  4. Life quality score of SF-36

    The life quality score of SF-36 was significantly improved after the operation.

    Measured: 90 days

Timeline

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

  1. First posted21 Apr 2020
  2. Study start30 Jul 2019
  3. Primary completion30 Jun 2021 (estimated)
  4. Study completion31 Jul 2021 (estimated)

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
150 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04355260
Sponsor's protocol ID
KY20192076-F-1
Status last verified
Jul 2020
First submitted
17 Apr 2020
Last updated
15 Jan 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Han C, Zhou M, Hu R, Wang B, Zuo L, Li J, Ta S, Hsi DH, Liu J, Wei L, Liu L. Trans-Septal Myocardial Biopsy in Hypertrophic Cardiomyopathy Using the Liwen Procedure: An Introduction of a Novel Technique. J Interv Cardiol. 2021 Feb 10;2021:1905184. doi: 10.1155/2021/1905184. eCollection 2021.

    PubMed 33628143

Questions about this trial

What is this clinical trial studying?

A study testing Echocardiography-guided Radiofrequency ablation for Hypertrophic obstructive Cardiomyopathy (HOCM). in people with Hypertrophic Obstructive Cardiomyopathy, run by Xijing Hospital at 1 site in China.

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 5 inclusion and 6 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: status not confirmed, as of the sponsor's last update on 15 Jan 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. 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?

Results are not available in the source record.

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

Contact Liwen Liu, MD (86-13571975528, liuliwencrt@hotmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Main adverse event (time frame: 30 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04355260, which also lists 1 linked publication.

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 15 Jan 2021.

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