The Effectiveness and Safety of Vagus Nerve Stimulation for TRE

December 16, 2024 updated by: Shuli Liang, Beijing Children's Hospital

Clinical Evaluation of the Effectiveness and Safety of Vagus Nerve Stimulation for Tuberous Sclerosis Complex Related Epilepsy

Prospective cohort studies to identify clinical epilepsy control, cognitive changes, and safety of VNS in patients with tuberous sclerosis complex-related epilepsy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Detailed Description

This study aims to evaluate the efficacy and safety of vagus nerve stimulation (VNS) in the treatment of drug-resistant epilepsy in patients with Tuberous Sclerosis Complex (TSC) and compare it with traditional antiepileptic drug therapy. By assessing seizure frequency, severity, and improvements in quality of life, the study seeks to provide evidence-based guidance for clinical treatment strategies.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
70

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
      • Beijing, China
        • Beijing Children's Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

2 years and older (Child, Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Patients from multiple epilepsy centers in China

Description

Inclusion Criteria:

  • Age Range: Patients aged 1 to 18 years.
  • Confirmed Diagnosis: Diagnosed with Tuberous Sclerosis Complex (TSC) according to established diagnostic criteria.
  • Drug-Resistant Epilepsy: Ineffectiveness of at least two antiepileptic drugs (monotherapy or combination therapy).
  • Informed Consent: Patients and their guardians understand the purpose of the study and voluntarily sign the informed consent form.

Exclusion Criteria：

  • Other Severe Diseases: Presence of significant cardiovascular, respiratory, or other systemic diseases.
  • Psychiatric Disorders: History or presence of severe psychiatric disorders (e.g., schizophrenia or major depressive disorder).
  • Surgical Contraindications: Unsuitability for general anesthesia or factors affecting surgical safety.
  • Drug Allergy: Known allergy to drugs used in the study.
  • Implant Conflict: Presence of implanted medical devices that may interfere with VNS therapy.
  • Pregnancy or Lactation: Pregnant or breastfeeding individuals.
  • Poor Compliance: Inability to adhere to follow-up visits or treatment protocols.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
VNS Group
VNS group: 20 patients with no localilzed epileptogenic tuber in the brain, and with VNS and multiple anti-seizure medicines.
Control Group
Control group: 50 patients with no localilzed epileptogenic tuber in the brain, and with multiple anti-seizure medicines.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
% of patients with Mchugh grading
Time Frame: 4 years
The grading made by Mchugh for the classification of outcome with respect to epileptic seizures following epilepsy surgery. It contains a total of 5 levels. The higher the level, the worse the result. We will count the percentage of patients at each level.epileptic seizures following epilepsy surgery. It is used for assessing the control of epilepsy.
4 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
IQ
Time Frame: 3 years
Wechsler Intelligence Scale is used for the evaluation of IQ
3 years
Quality of Life: QOLIE-31
Time Frame: 3 years
QOLIE-31 is suitable for patients 14 years and older. QOLCE-76 is applied to patients aged 2-13 by parents.
3 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Beijing Children's Hospital

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Peking University First Hospital
Xijing Hospital
Xiangya Hospital of Central South University
Beijing Tiantan Hospital
Chinese PLA General Hospital
The Second Hospital of Hebei Medical University
RenJi Hospital
West China Hospital
First Affiliated Hospital Xi'an Jiaotong University
Xuanwu Hospital, Beijing
Children's Hospital of Fudan University
China-Japan Friendship Hospital
The First Hospital of Jilin University
Capital Medical University
Jining Medical University
Shenzhen Children's Hospital
Guangdong 999 Brain Hospital
Fourth Medical Center of PLA General Hospital
Capital Institute of Pediatrics, China
Xiamen Humanity Hospital
Wuhan Medical Care Center for Women and Children
Xinqiao Hospital, Army Medical University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 10, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 10, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 10, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 9, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 12, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 13, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 16, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • TRE-VNS

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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