A Randomized, Dose-Finding and Confirmatory, Double-Blind, Placebo-Controlled, Parallel-Group Multicenter Study With a 2 Stage Adaptive Design and Randomized Withdrawal to Evaluate the Efficacy, Safety, and Tolerability of Brivaracetam as Monotherapy in Patients 2 to 25 Years of Age With Childhood Absence Epilepsy or Juvenile Absence Epilepsy (EXPAND)

  • End date
    Jul 3, 2024
  • participants needed
  • sponsor
    UCB Biopharma SRL
Updated on 24 October 2022


The purpose of the study is to test the efficacy, safety and tolerability of brivaracetam monotherapy in study participants 2 to 25 years of age inclusive with childhood absence epilepsy (CAE) or juvenile absence epilepsy (JAE).

Condition Childhood Absence Epilepsy, Juvenile Absence Epilepsy
Treatment Placebo, Brivaracetam
Clinical Study IdentifierNCT04666610
SponsorUCB Biopharma SRL
Last Modified on24 October 2022


Yes No Not Sure

Inclusion Criteria

Study participant is 2 to 25 years of age inclusive, at the time of signing the informed consent. No study participants from 2 to <4 years of age will be included in Stage 1
Study participant is diagnosed with either childhood absence epilepsy (CAE) or juvenile absence epilepsy (JAE) as defined by the International League Against Epilepsy (ILAE) criteria
Study participants 2 to <4 years of age and participants who had onset of absence seizures at an age younger than 4 years must have a negative glucose transporter type 1 deficiency syndrome (GLUT1DS) genetic test
Study participant is untreated with antiepileptic drugs (AEDs) or pretreated for absence seizures with a maximum of 2 historical AEDs, but without AED treatment for a period of at least 5 half-lives of the AED before randomization into this study. The UCB study physician should be consulted if in doubt
Study participant has electroencephalogram (EEG) evidence of bilateral synchronous, symmetric generalized paroxysmal spike waves (2.5-6 hertz) with normal background activity and with at least 1 electrographically recorded seizure lasting 3 seconds or more on a 1-hour EEG with hyperventilation (HV) while awake at Visit 1 (V1), or on a historical EEG up to 12 weeks before enrollment
Study participant has a history of clinically evident absence seizures occurring on at least 3 days per week in the 2 weeks prior to enrollment
Study participant is without treatment with psychoactive drugs or on a stable dose for at least 2 weeks prior to randomization
Study participant has normal neurological examination, head size, development and cognition
Body weight is ≥9 kg
Male and female
A sexually active male study participant must agree to use contraception during the treatment period and for at least 2 days, corresponding to the time needed to eliminate study treatment, after the last dose of study treatment and refrain from donating sperm during this period b) A female study participant is eligible to participate if she is not pregnant, not breastfeeding, and at least 1 of the following conditions applies: The study participant is premenarchial OR A woman of childbearing potential (WOCBP) who agrees to follow the contraceptive guidance during the treatment period and for at least 2 days after the last dose of study treatment, corresponding to the time needed to eliminate study treatment
Study participant is capable of and provides consent/assent, and the study
participant's parent/legal representative/caregiver provides signed informed
consent for minor study participants, which includes compliance with the
requirements and restrictions listed in the informed consent form (ICF) and in
this protocol

Exclusion Criteria

Study participant has a history of nonfebrile seizures other than absence seizures (eg, generalized tonic-clonic seizures or myoclonic seizures)
Study participant has a history of absence status epilepticus
Study participant has a history or presence of paroxysmal nonepileptic seizures
Study participant has a clinically relevant electrocardiogram (ECG) abnormality in the opinion of the Principal Investigator
Study participant has hepatic impairment (Child Pugh Score A, B, or C) based on the Investigator's assessment
Study participant has a history of major psychiatric disease or any clinically significant medical condition that would preclude appropriate study participation
Study participant has active suicidal ideation prior to study entry as indicated by a positive response ("Yes") to either Question 4 or Question 5 of the Columbia-Suicide Severity Rating Scale (C-SSRS; for study participants 6 years or older) or clinical judgement (for study participants younger than 6 years). The study participant should be referred immediately to a Mental Healthcare Professional
Study participant has a lifetime history of suicide attempt (including an active attempt, interrupted attempt, or aborted attempt). The study participant should be immediately evaluated by a Mental Healthcare Professional to address safety concerns
Study participant with known fructose intolerance or hypersensitivity of any of the ingredients in brivaracetam oral solution
Study participant has end-stage kidney disease requiring dialysis
Concomitant use of rifampicin/rifampin; prior use must have been stopped at least 2 months before randomization
Concomitant use of strong CYP2C19 inhibitors like fluconazole, fluoxetine and fluvoxamine, prior use must have been stopped at least 1 week before randomization
Study participant has participated in another study of an investigational medicinal product (IMP; and/or an investigational device) within the previous 30 days prior to informed consent
Study participant has clinical or EEG findings not consistent with a diagnosis of childhood absence epilepsy (CAE) or juvenile absence epilepsy (JAE)
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