Clinical trial Recruiting at 6 sites Phase 3 Interventional Ages 1 Month and up

Brivaracetam safety and tolerability in children and teens with seizures

Official title: Open-Label, Single-Arm, Multicenter Study to Evaluate Long-Term Safety and Tolerability of Brivaracetam Used as Adjunctive Treatment in Pediatric Study Participants With Epilepsy

Run by UCB Pharma · NCT04715646 · Data updated 2026-11-12

We will test if long-term brivaracetam is safe and well tolerated for children and adolescents with epilepsy, including those from prior pediatric brivaracetam studies and children in Japan with focal seizures.

More Epilepsy trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages1 Month and up
SexAll
Enrollment70 (estimated)
SponsorUCB Pharma
Industry-sponsored
Locations36 sites (Hawthorne, New York and 35 other locations)
StatusRecruiting
StartedMarch 11, 2021
Main results expectedJuly 8, 2030
Study endsJuly 8, 2030
Registry record updatedJuly 27, 2026
Trial IDNCT04715646 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are children and adolescents with epilepsy who previously participated in brivaracetam studies N01266 or N01349, or Japanese children aged 4 to under 16 with uncontrolled partial-onset seizures who had at least one seizure during screening.

Probably not a fit

Children with severe medical, neurological, or psychiatric disorders, abnormal laboratory values affecting safety, or those who do not meet prior-study or Japanese enrollment criteria are unlikely to benefit from participation.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

EP0156 is an open-label long-term follow-up study testing the safety and tolerability of brivaracetam in pediatric participants who previously took part in neonatal study N01349 or the pediatric follow-up N01266. The study also directly enrolls Japanese children aged 4 to under 16 with uncontrolled partial-onset seizures and will collect pharmacokinetic data in those participants. Participants receive brivaracetam and are monitored over time for adverse events, laboratory changes, and overall tolerability. The trial is conducted at multiple sites including locations in the United States and Leuven, Belgium.

Why it matters

Potential benefit: If successful, the study could confirm that long-term brivaracetam is safe and tolerable in children and adolescents, supporting continued pediatric use.

How similar studies have gone: Earlier adult and pediatric brivaracetam studies, including open-label long-term follow-ups, have generally supported its tolerability, but comprehensive long-term pediatric safety data remain limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Inclusion criteria for long-term follow-up (LTFU) study participants only

* Study participants ≥ 1 month of age with a confirmed diagnosis of epilepsy who participated in core study N01266 \[NCT01364597\] and/or N01349 \[NCT03325439\]

Inclusion criteria for directly enrolled (DE) study participants in Japan only

* Study participant is ≥ 4 years to \< 16 years of age
* Study participant has presence of an electroencephalogram (EEG) reading compatible with the diagnosis of focal epilepsy within the last 10 years
* Study participant has uncontrolled partial-onset seizure (POS) after an adequate course of treatment with at least 1 antiepileptic drug (AED)
* Study participant had at least 1 POS during the 4-week Screening Period

Exclusion Criteria:

Exclusion criteria for all study participants

* Severe medical, neurological, or psychiatric disorders or laboratory values, which may have an impact on the safety of the study participant
* Study participant is currently participating in another study of an investigational medication (or a medical device) other than brivaracetam (BRV).

Exclusion criteria for long-term follow-up (LTFU) study participants only

\- Study participant ≥ 6 years of age has a lifetime history of suicide attempt or has suicidal ideation in the past 6 months as indicated on the Columbia Suicide Severity Rating Scale (C-SSRS)

Exclusion criteria for directly enrolled (DE) study participants in Japan only

* Study participant has a history of primary generalized epilepsy, psychogenic non-epileptic seizures, or febrile seizures
* Study participant has a history of status epilepticus in the 30 days prior to the Screening Visit (ScrV) or during the Screening Period
* Study participant has any clinically significant illness
* Study participant has clinically significant laboratory abnormality that may increase the risk associated with study participation or may interfere with the interpretation of study results
* Study participant has a clinically significant ECG abnormality
* Study participant had major surgery within 6 months prior to the ScrV

Where it's running

  • Ep0156 815
    Kodaira-shi, Japan
    Recruiting
  • Ep0156 817
    Osaka, Japan
    Recruiting
  • Ep0156 818
    Ōbu, Japan
    Recruiting
  • Ep0156 819
    Ōmura, Japan
    Recruiting
  • Ep0156 816
    Sendai, Japan
    Recruiting
  • Ep0156 814
    Shizuoka, Japan
    Recruiting
Show 30 more locations
  • Ep0156 259
    Hawthorne, New York, United States
    Completed
  • Ep0156 237
    Durham, North Carolina, United States
    Completed
  • Ep0156 204
    Leuven, Belgium
    Withdrawn
  • Ep0156 240
    Prague, Czechia
    Withdrawn
  • Ep0156 207
    Loos, France
    Withdrawn
  • Ep0156 209
    Freiburg im Breisgau, Germany
    Withdrawn
  • Ep0156 210
    Budapest, Hungary
    Completed
  • Ep0156 247
    Budapest, Hungary
    Completed
  • Ep0156 232
    Miskolc, Hungary
    Completed
  • Ep0156 230
    Roma, Italy
    Completed
  • Ep0156 803
    Bunkyō City, Japan
    Active not recruiting
  • Ep0156 808
    Chūō, Japan
    Active not recruiting
  • Ep0156 800
    Gifu, Japan
    Active not recruiting
  • Ep0156 807
    Hiroshima, Japan
    Active not recruiting
  • Ep0156 813
    Kōshi, Japan
    Active not recruiting
  • Ep0156 806
    Kyoto, Japan
    Active not recruiting
  • Ep0156 811
    Nagoya, Japan
    Active not recruiting
  • Ep0156 812
    Niigata, Japan
    Active not recruiting
  • Ep0156 805
    Sapporo, Japan
    Active not recruiting
  • Ep0156 809
    Shimotsuke, Japan
    Active not recruiting
  • Ep0156 804
    Tokyo, Japan
    Active not recruiting
  • Ep0156 810
    Yokohama, Japan
    Active not recruiting
  • Ep0156 802
    Yonago, Japan
    Completed
  • Ep0156 223
    Aguascalientes, Mexico
    Completed
  • Ep0156 609
    Culiacán, Mexico
    Completed
  • Ep0156 603
    Guadalajara, Mexico
    Completed
  • Ep0156 406
    Kielce, Poland
    Completed
  • Ep0156 402
    Krakow, Poland
    Completed
  • Ep0156 401
    Poznan, Poland
    Completed
  • Ep0156 248
    Seville, Spain
    Completed

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.