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A Study to Assess the Bioequivalence Between Brivaracetam Tablet and Dry Syrup in Healthy Japanese Male Study Participants

A Multiple-Dose, Open-Label, Randomized, 2-Way Cross-Over Study to Assess the Bioequivalence Between Brivaracetam Tablet and Dry Syrup in Healthy Male Japanese Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06312566
Enrollment
64
Registered
2024-03-15
Start date
2024-03-25
Completion date
2024-06-04
Last updated
2025-06-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Study Participants

Keywords

brivaracetam, Healthy Study Participants, Phase 1, BRV

Brief summary

The purpose of the study is to demonstrate the bioequivalence between the BRV tablet and BRV dry syrup after multiple oral doses in healthy male Japanese participants.

Interventions

DRUGbrivaracetam (BRV) tablet

Study participants will receive multiple-doses of brivaracetam tablet (reference - Treatment A) administered orally.

DRUGbrivaracetam (BRV) dry syrup

Study participants will receive multiple-doses of brivaracetam dry syrup (test - Treatment B) administered orally.

Sponsors

UCB Biopharma SRL
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
20 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

* Participant must be between 20 to 50 years of age (inclusive) at the time of signing the informed consent form (ICF) * Participant is of Japanese descent as evidenced by appearance and verbal confirmation of familial heritage (ie, participant has all 4 Japanese grandparents born in Japan) * Participant is male

Exclusion criteria

* Participant has a known hypersensitivity to any components of the investigational medicinal product (IMP) formulations * Participant has participated in another study of an IMP (and/or an investigational device) within the previous 30 days or within 5 times the half-life (whichever is longer) of the first dose of BRV in this study or is currently participating in another study of an IMP (and/or an investigational device) * Participant tests positive for alcohol and/or prohibited concomitant drugs (including cotinine) at the Screening Visit or on Day-1 * Participant has donated blood or plasma or has experienced blood loss ≥400 mL within 90 days, ≥200 mL within 30 days, or has donated any blood or plasma within 14 days before first administration of IMP * Participant is a current smoker or has used nicotine-containing products (eg, tobacco, patches, gum) within 30 days before the first administration of IMP

Design outcomes

Primary

MeasureTime frameDescription
Maximum Plasma Concentration at Steady State [Cmax(ss)] After Multiple Doses of BrivaracetamDay 1: before the morning and evening doses (0 and 12 hr); Day 2: before the morning and evening doses (24 and 36 hr); Day 3: Predose (48 hr) and 10 min, 15 min, 20 min, 30 min, 45 min, 60 min, 75 min, 90 min, 2 hr, 6 hr, 9 hr, and 12 hr postdoseCmax,ss is the maximum plasma concentration of brivaracetam at steady state.
Area Under the Curve During a Dosing Interval at Steady State [AUC(Tau)] After Multiple Doses of BrivaracetamDay 1: before the morning and evening doses (0 and 12 hr); Day 2: before the morning and evening doses (24 and 36 hr); Day 3: Predose (48 hr) and 10 min, 15 min, 20 min, 30 min, 45 min, 60 min, 75 min, 90 min, 2 hr, 6 hr, 9 hr, and 12 hr postdoseAUCtau was area under the curve during a dosing interval at steady state of brivaracetam.

Secondary

MeasureTime frameDescription
Percentage of Study Participants With Treatment-emergent Adverse Events (TEAEs)From Baseline to end of Safety Follow-up (up to 25 days)An AE was any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of IMP, whether or not considered related to the IMP. A TEAE was defined as any AE with a start date/time on or after the first dose of IMP or any unresolved event already present before administration of IMP that worsens in intensity following exposure to IMP.
Percentage of Study Participants With Treatment-emergent Serious Adverse Events (TESAEs)From Baseline to end of Safety Follow-up (up to 25 days)A TEAE was defined as any AE with a start date/time on or after the first dose of IMP or any unresolved event already present before administration of IMP that worsens in intensity following exposure to IMP. A serious adverse event (SAE) was defined as any untoward medical occurrence that at any dose: Results in death, Is life-threatening, Requires in patient hospitalization or prolongation of existing hospitalization, Is a congenital anomaly or birth defect, Results in persistent disability/incapacity Is an infection that requires treatment parenteral antibiotics, Other important medical events which based on medical or scientific judgement may jeopardize the patients, or may require medical or surgical intervention to prevent any of the above.
Percentage of Participants With Treatment-emergent Adverse Events (TEAEs) Leading to DiscontinuationFrom Baseline to end of Safety Follow-up (up to 25 days)Percentage of participants with TEAEs leading to discontinuation were reported.

Countries

Japan

Participant flow

Recruitment details

The study started to enroll participants in March 2024 and concluded in June 2024.

Pre-assignment details

The Participant Flow refers to the Randomized Set.

Participants by arm

ArmCount
Sequence Brivaracetam (BRV) Tablet - BRV Dry Syrup
Dosing period 1 consisted of 5 days (Day -1 \[1 day before administration of IMP\] to Day 4): On Day 1 and Day 2 each participant received a dose of BRV 50 mg tablet formulation twice daily; on Day 3, each participant received a single morning dose of BRV 50 mg tablet formulation. Dosing period 2 consisted of 5 days (Day -1 \[1 day before administration of IMP\] to Day 4): On Day 1 and Day 2 each participant received a dose of BRV 50mg as dry syrup twice daily; on Day 3, each participant received a single morning dose of BRV 50 mg as dry syrup. The final IMP administration in Dosing Period 1 and the first investigational medicinal product (IMP) administration in Dosing Period 2 were separated by a washout period of 6-10 days.
32
Sequence BRV Dry Syrup - BRV Tablet
Dosing period 1 consisted of 5 days (Day -1 \[1 day before administration of IMP\] to Day 4): on Day 1 and Day 2 each participant received a dose of BRV 50 mg as dry syrup twice daily. On Day 3, each participant received a single morning dose of BRV 50 mg as dry syrup. Dosing period 2 consisted of 5 days (Day -1 \[1 day before administration of IMP\] to Day 4): On Day 1 and Day 2 each participant received a dose of BRV 50 mg tablet formulation twice daily; on Day 3 of Dosing Period 2, each participant received a single morning dose of BRV 50 mg tablet formulation. The final IMP administration in Dosing Period 1 and the first IMP administration in Dosing Period 2 were separated by a washout period of 6-10 days.
32
Total64

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyProtocol Violation01

Baseline characteristics

CharacteristicSequence Brivaracetam (BRV) Tablet - BRV Dry SyrupSequence BRV Dry Syrup - BRV TabletTotal
Age, Continuous33.5 years
STANDARD_DEVIATION 9.8
33.8 years
STANDARD_DEVIATION 9.1
33.6 years
STANDARD_DEVIATION 9.4
Age, Customized
<=18 years
0 Participants0 Participants0 Participants
Age, Customized
19 - 65 years
32 Participants32 Participants64 Participants
Age, Customized
>=65 years
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian
32 Participants32 Participants64 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
32 Participants32 Participants64 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
32 Participants32 Participants64 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 630 / 64
other
Total, other adverse events
2 / 636 / 64
serious
Total, serious adverse events
0 / 630 / 64

Outcome results

Primary

Area Under the Curve During a Dosing Interval at Steady State [AUC(Tau)] After Multiple Doses of Brivaracetam

AUCtau was area under the curve during a dosing interval at steady state of brivaracetam.

Time frame: Day 1: before the morning and evening doses (0 and 12 hr); Day 2: before the morning and evening doses (24 and 36 hr); Day 3: Predose (48 hr) and 10 min, 15 min, 20 min, 30 min, 45 min, 60 min, 75 min, 90 min, 2 hr, 6 hr, 9 hr, and 12 hr postdose

Population: PK set included all participants who were randomized, received at least 1 dose of active IMP, and had at least 1 quantifiable post-Baseline PK measurement.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
BRV TabletArea Under the Curve During a Dosing Interval at Steady State [AUC(Tau)] After Multiple Doses of Brivaracetam18.55 hours*μg/mLGeometric Coefficient of Variation 17.4
BRV Dry SyrupArea Under the Curve During a Dosing Interval at Steady State [AUC(Tau)] After Multiple Doses of Brivaracetam18.53 hours*μg/mLGeometric Coefficient of Variation 16.8
92.016% CI: [0.9881, 1.012]
Primary

Maximum Plasma Concentration at Steady State [Cmax(ss)] After Multiple Doses of Brivaracetam

Cmax,ss is the maximum plasma concentration of brivaracetam at steady state.

Time frame: Day 1: before the morning and evening doses (0 and 12 hr); Day 2: before the morning and evening doses (24 and 36 hr); Day 3: Predose (48 hr) and 10 min, 15 min, 20 min, 30 min, 45 min, 60 min, 75 min, 90 min, 2 hr, 6 hr, 9 hr, and 12 hr postdose

Population: Pharmacokinetic (PK) set included all participants who were randomized, received at least 1 dose of active IMP, and had at least 1 quantifiable post-baseline PK measurement.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
BRV TabletMaximum Plasma Concentration at Steady State [Cmax(ss)] After Multiple Doses of Brivaracetam2.963 microgram per milliliter (μg/mL)Geometric Coefficient of Variation 24.1
BRV Dry SyrupMaximum Plasma Concentration at Steady State [Cmax(ss)] After Multiple Doses of Brivaracetam2.878 microgram per milliliter (μg/mL)Geometric Coefficient of Variation 19.5
92.016% CI: [0.9257, 1.022]Linear mixed model analysis
Secondary

Percentage of Participants With Treatment-emergent Adverse Events (TEAEs) Leading to Discontinuation

Percentage of participants with TEAEs leading to discontinuation were reported.

Time frame: From Baseline to end of Safety Follow-up (up to 25 days)

Population: SS included all randomized participants who received at least 1 dose of the IMP.

ArmMeasureValue (NUMBER)
BRV TabletPercentage of Participants With Treatment-emergent Adverse Events (TEAEs) Leading to Discontinuation0 percentage of participants
BRV Dry SyrupPercentage of Participants With Treatment-emergent Adverse Events (TEAEs) Leading to Discontinuation0 percentage of participants
Secondary

Percentage of Study Participants With Treatment-emergent Adverse Events (TEAEs)

An AE was any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of IMP, whether or not considered related to the IMP. A TEAE was defined as any AE with a start date/time on or after the first dose of IMP or any unresolved event already present before administration of IMP that worsens in intensity following exposure to IMP.

Time frame: From Baseline to end of Safety Follow-up (up to 25 days)

Population: SS included all randomized participants who received at least 1 dose of the IMP.

ArmMeasureValue (NUMBER)
BRV TabletPercentage of Study Participants With Treatment-emergent Adverse Events (TEAEs)4.8 percentage of participants
BRV Dry SyrupPercentage of Study Participants With Treatment-emergent Adverse Events (TEAEs)10.9 percentage of participants
Secondary

Percentage of Study Participants With Treatment-emergent Serious Adverse Events (TESAEs)

A TEAE was defined as any AE with a start date/time on or after the first dose of IMP or any unresolved event already present before administration of IMP that worsens in intensity following exposure to IMP. A serious adverse event (SAE) was defined as any untoward medical occurrence that at any dose: Results in death, Is life-threatening, Requires in patient hospitalization or prolongation of existing hospitalization, Is a congenital anomaly or birth defect, Results in persistent disability/incapacity Is an infection that requires treatment parenteral antibiotics, Other important medical events which based on medical or scientific judgement may jeopardize the patients, or may require medical or surgical intervention to prevent any of the above.

Time frame: From Baseline to end of Safety Follow-up (up to 25 days)

Population: SS included all randomized participants who received at least 1 dose of the IMP.

ArmMeasureValue (NUMBER)
BRV TabletPercentage of Study Participants With Treatment-emergent Serious Adverse Events (TESAEs)0 percentage of participants
BRV Dry SyrupPercentage of Study Participants With Treatment-emergent Serious Adverse Events (TESAEs)0 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026