- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02954107
Longitudinal Early Epilepsy Study (LEES)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The aim is to study the cognitive and brain development of children with absence epilepsy. In addition, this study aims to identify prognostic factors for cognitive deterioration and/or poor seizure control.
Objective:
- To study the development of cognition in children with absence epilepsy and the functional brain organization over time.
- To find prognostic factors in terms of clinical, 24h-video-EEG or/and MRI characteristics for cognitive deterioration and/or poor seizure control in patients with absence epilepsy.
Study design:
2 year prospective longitudinal, controlled, comparative, clinical, follow up.
Study population:
60 children with recently diagnosed (<2 years) absence epilepsy, aged 6 to 12 years. In addition, this study includes a control group of 15 age and gender matched healthy volunteers.
Main study parameters/endpoints:
Endpoints are the development of clinical parameters (semiology, 24h-video-EEG and seizure control), neuropsychological/behavioural outcomes, structural/functional MRI parameters, and educational performance.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Contact
- Name: Eric LA Fonseca Wald, MD
- Phone Number: +31 (0)43 387 65 84
- Email: LEES.studie.kinderneurologie@mumc.nl
Study Contact Backup
- Name: Sylvia Klinkenberg, MD, PHD
- Phone Number: +31 (0)43 387 70 54
- Email: s.klinkenberg@mumc.nl
Study Locations
-
-
Limburg
-
Heeze, Limburg, Netherlands, 5591 VE
- Recruiting
- Kempenhaeghe
-
Contact:
- Mariette HJ Debeij-van Hall, MD, PHD
- Phone Number: +31 (0)40 227 97 77
- Email: debeij-vanhallm@kempenhaeghe.nl
-
Maastricht, Limburg, Netherlands, 6202 AZ
- Recruiting
- Maastricht University Medical Center
-
Contact:
- Sylvia Klinkenberg, MD, PHD
- Phone Number: +31 (0)43 387 70 54
- Email: s.klinkenberg@mumc.nl
-
Contact:
- Eric LA Fonseca Wald, MD
- Phone Number: +31 (0)43 387 65 84
- Email: eric.fonsecawald@mumc.nl
-
Principal Investigator:
- Johan SH Vles, MD, PHD
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
- Children aged 6-12 years of age primarily presenting with episodes of brief loss of consciousness (absences) in an otherwise normal child in the previous 2 years. With an EEG showing 3 Hz (2.5-4.5 Hz) generalized rhythmic spike-and-wave complexes with a discharge duration of at least 3 seconds on a present or former EEG.
- Overall healthy children aged 6-12 years of age following a regular school without major problems.
Description
Inclusion Criteria:
- Primarily presented with daily occurring episodes of brief loss of consciousness (absences) in an otherwise normal child in the previous 2 years.
- An EEG showing 3 Hz (2.5-4.5 Hz) generalized rhythmic spike-and-wave complexes with a discharge duration of at least 3 seconds on a present or former EEG(58).
- Early absence epilepsy , defined as a confirmed diagnosis or seizures within 2 years.
- Aged 6-12 years
Permitted accompanying factors:
- A few generalized tonic-clonic seizures (assessed individually according to International League Against Epilepsy [ILAE] statements;
- Mild myoclonic eye(lid) movements
- Co-morbidities: Attention deficiency/concentration disorders, autism, dyslexia and anxiety. These do not form exclusion criteria as this is frequently seen in children with absence seizures and it might be uncertain if the co-morbidity is a manifestation of the absence epilepsy.
Exclusion Criteria:
A potential subject (both for the control and patient group) who meets any of the following criteria will be excluded from participation in this study:
- A diagnosis according to ILAE criteria of the following epilepsy syndromes: Juvenile Absence Epilepsy; Eyelid myoclonia with absences; Dravet syndrome; Epilepsy with myoclonic-atonic seizures; Epilepsy with Myoclonic Absences; Lennox-Gastaut syndrome; Frontal Lobe Epilepsy or other focal epilepsy.
- A confirmed diagnosis of epilepsy/seizures for more than 2 years (59).
- Recent hospitalizations in the last months or a history which might limit participation in or completion of the study protocol.
- Behavioural characteristics which might hamper the gathering of useful MRI data.
- Intellectual disability or other diseases/causes that may underlie cognitive impairment (i.e. neurodegenerative diseases).
- History of major head trauma or head/brain surgery.
- MRI lesions on (previous) structural brain MRI- or CT-scans or symptomatic epilepsies (e.g. epilepsy related to tumours, vascular abnormalities, congenital dysgenesia).
- MRI contra-indications: claustrophobia, anxiety for an MRI scan, or presence of metallic objects (e.g. prostheses, pacemakers, metal clips on blood vessels, metal parts in the eye). Dental braces are no exclusion criterion for absence patients.
- Regularly using drugs of abuse (asked during screening session).
- Parents or participants (aged≥12 years) not willing to provide informed consent.
- Parents or participants (aged≥12 years) who do not want to get informed whenever structural abnormalities are found during imaging.
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Control
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Absence epilepsy
Children aged 6-12 years of age primarily presenting with episodes of brief loss of consciousness (absences) in an otherwise normal child in the previous 2 years.
With an EEG showing 3 Hz (2.5-4.5 Hz) generalized rhythmic spike-and-wave complexes with a discharge duration of at least 3 seconds on a present or former EEG.
|
|
Controls
Overall healthy children aged 6-12 years of age following a regular school without major problems.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Change of multimodal MRI parameters on brain connectivity
Time Frame: Baseline; first year; second year
|
Baseline; first year; second year
|
Change of cognition measured by a battery of neuropsychological tests
Time Frame: Baseline; first year; second year
|
Baseline; first year; second year
|
Time in months since start of medication till seizure control is attained, as assessed by anamnesis and a confirmatory routine-EEG.
Time Frame: Within 2 years
|
Within 2 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Age in months at which seizures began (age of onset) assessed by interview at the baseline measurment
Time Frame: Baseline
|
Baseline
|
|
Seizure semiology assessed by anamnesis and video-EEG
Time Frame: Baseline; first year; second year
|
Seizure semiology will be re-assessed at the different time points
|
Baseline; first year; second year
|
Epileptiform activity assessed by a 24h-EEG
Time Frame: Baseline; first year; second year
|
Epileptiform acitivty will be re-assessed at the different time points
|
Baseline; first year; second year
|
Collaborators and Investigators
Collaborators
Investigators
- Study Director: Johan SH Vles, MD, PHD, Maastricht University Medical Center
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- NL55455.068.15
- 152055 (Other Identifier: Maastricht University Medical Centre+)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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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