CClinicalTrials.gg
RecruitingNCT06388174Updated Aug 27, 2025

Idiopathic Generalized Epilepsy Syndromes

An observational study in Epilepsy and Epilepsy, Idiopathic Generalized, sponsored by Shen Chun-Hong. Recruiting at 1 site in China. Open to participants aged 4 Years to 40 Years. Per ClinicalTrials.gov, last updated 2025-08-27.

Sponsored by Shen Chun-Hong · Observational

From the registry’s dates

  • Started Jan 2023; still recruiting 3 years 9 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
200
Ages
4 Years to 40 Years
Sex
All
01

Study summary

The idiopathic generalized epilepsies (IGEs) have historically included the syndromes childhood absence epilepsy (CAE), juvenile absence epilepsy (JAE), juvenile myoclonic epilepsy (JME), and epilepsy with generalized tonic-clonic seizures alone (GTCA). Recognition of the IGEs is important for clinical care, as it informs diagnosis, prevents unnecessary investigation, allows optimal selection of anti-seizure medications (ASMs), and provides prognostic guidance.

According to the new ILAE definition in 2022, the study aims to describe the clinical features, electroencephalographic, imaging findings and long-term prognosis.

Read the detailed description

the Long-term prognosis include the rate of drug-resistent epilepsy, relapse after drug withdrawn, common comorbidities such as mood disorders, attention deficit hyperactivity disorder (ADHD) and learning disabilities.

02

Conditions studied

  • Epilepsy
  • Epilepsy, Idiopathic Generalized

Browse trials for

03

In context

Epilepsy

1,805 studies on the registry are indexed under Epilepsy; 417 are open to participants now.

This study's planned enrollment of 200 is above the median of 102 across 521 observational studies indexed under Epilepsy.

Browse Epilepsy studies →

Lead sponsor

Shen Chun-Hong is the lead sponsor of 4 studies on the registry; 3 are open to participants now.

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

04

Who can participate

Ages eligible
4 Years to 40 Years
Sexes eligible
All
Sampling method
Probability sample

Study population

Patients are consecutively and prospectively recruited from epilepsy center and clinics

Inclusion criteria

  • Patients are consecutively and prospectively enrolled from epilepsy center, with newly diagnosed epilepsy or established epilepsy.
  • Patients have a diagnosis of idiopathic generalized epilepsy (IGE), according to the 2022 diagnostic criteria.
  • Comprehensive clinical information is collected, and 24 hour video-electroencephalography is performed.
  • Sign the informed consent forms.

Exclusion criteria

Exclusion Criteria:

  • Other epilepsy syndromes are considered during follow-up, such as genetic generalized epilepsy.
  • Lost to follow-up
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
200 participants (estimated)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. The proportion of drug-resistent epilepsy

    We defined drug-resistant cases as those patients who have failed two or more trials of broad-spectrum ASMs or those otherwise indicated in IGE syndromes

    Time frame: through study completion, an average of 1 year

  2. The proportion of seizure freedom

    We defined seizure freedom according to the International League Against Epilepsy (ILAE) definition

    Time frame: through study completion, an average of 1 year

Secondary outcomes

  1. The proportion of psychiatric comorbidity

    The psychiatric comorbidities mainly include anxiety and depression, which are evaluated by Hamilton anxiety scale and Hamilton depression scale, respectively.

    Time frame: through study completion, an average of 1 year

  2. The proportion of psychosocial outcome

    such as university entrance, marry

    Time frame: through study completion, an average of 1 year

  3. The proportion of seizure relapse after antiseizure medication withdrawn

    Antiseizure medication withdrawn should be recommended by epilepsy experts

    Time frame: through study completion, an average of 1 year

07

Study locations

1 of 1 sites recruiting
  • 2nd Affiliated Hospital, School of Medicine, Zhejiang University, China
    Hangzhou, Zhejiang 310000, China
    Recruiting
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 Aug 27, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06388174
Lead sponsor
Shen Chun-Hong
Responsible party
Shen Chun-Hong (Associate Senior Doctor, Second Affiliated Hospital, School of Medicine, Zhejiang University) — Sponsor-investigator
First posted
Apr 29, 2024
Start date
Jan 1, 2023
Primary completion
Dec 31, 2026 (estimated)
Completion
Dec 31, 2033 (estimated)
Last update
Aug 27, 2025

Study contacts

Chunhong Shen
Contact
shen_neurology@zju.edu.cn
+86 0571 87783872
Chunhong Shen
principal investigator · Second Affiliated Hospital, School of Medicine, Zhejiang University

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

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