CClinicalTrials.gg
CompletedNCT04198207Updated Dec 19, 2024

The Effectiveness and Safety of Vagus Nerve Stimulation for TRE

An observational study in Tuberous Sclerosis Complex and Epilepsy, sponsored by Beijing Children's Hospital. Completed at 1 site in China. Open to participants aged 1 Year to 18 Years. Per ClinicalTrials.gov, last updated 2024-12-19.

Sponsored by Beijing Children's Hospital · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
70
Ages
1 Year to 18 Years
Sex
All
01

Study summary

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

Read the 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.

02

Conditions studied

  • Tuberous Sclerosis Complex
  • Epilepsy

Keywords

  • tuberous sclerosis complex
  • epilepsy
  • vagus nerve stimulation
03

In context

Tuberous Sclerosis

109 studies on the registry are indexed under Tuberous Sclerosis; 27 are open to participants now.

This study's enrollment of 70 is below the median of 158 across 36 observational studies indexed under Tuberous Sclerosis.

Browse Tuberous Sclerosis studies →

Lead sponsor

Beijing Children's Hospital is the lead sponsor of 51 studies on the registry; 15 are open to participants now.

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

04

Who can participate

Ages eligible
1 Year to 18 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients from multiple epilepsy centers in China

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

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.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
70 participants (actual)
Target follow-up
4 Years
Patient registry
Yes

Groups and cohorts

  • 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.

06

What researchers measure

Primary outcomes

  1. % of patients with Mchugh grading

    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.

    Time frame: 4 years

Secondary outcomes

  1. IQ

    Wechsler Intelligence Scale is used for the evaluation of IQ

    Time frame: 3 years

  2. Quality of Life: QOLIE-31

    QOLIE-31 is suitable for patients 14 years and older. QOLCE-76 is applied to patients aged 2-13 by parents.

    Time frame: 3 years

07

Study locations

1 site
  • Beijing Children's Hospital
    Beijing, China
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 19, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04198207
Lead sponsor
Beijing Children's Hospital
Collaborators
Beijing Tiantan Hospital, The First Hospital of Jilin University, Xuanwu Hospital, Beijing, Capital Medical University, Peking University First Hospital, China-Japan Friendship Hospital, Chinese PLA General Hospital, Fourth Medical Center of PLA General Hospital, Capital Institute of Pediatrics, China, The Second Hospital of Hebei Medical University, Xijing Hospital, First Affiliated Hospital Xi'an Jiaotong University, Children's Hospital of Fudan University, RenJi Hospital, Jining Medical University, Xiamen Humanity Hospital, Xiangya Hospital of Central South University, Wuhan Medical Care Center for Women and Children, Guangdong 999 Brain Hospital, Shenzhen Children's Hospital, Xinqiao Hospital, Army Medical University, West China Hospital
Responsible party
Shuli Liang (Director of Functional Neurosurgery, Beijing Children's Hospital) — Principal investigator
First posted
Dec 13, 2019
Start date
Dec 10, 2019
Primary completion
Dec 10, 2024
Completion
Dec 10, 2024
Last update
Dec 19, 2024

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion