CClinicalTrials.gg
CompletedNCT06312566Updated Jun 6, 2025Results posted

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

A Phase 1 interventional study of brivaracetam (BRV) tablet and brivaracetam (BRV) dry syrup in Healthy Study Participants, sponsored by UCB Biopharma SRL. Completed at 1 site in Japan. Open to male participants aged 20 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-06-06.

Sponsored by UCB Biopharma SRL · Phase 1, Interventional, and Basic science

Phase
Phase 1
Study type
Interventional
Enrollment
64
Allocation
Randomized
Ages
20 Years to 50 Years
Sex
Male
01

Study 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.

02

Conditions studied

  • Healthy Study Participants

Keywords

  • brivaracetam
  • Healthy Study Participants
  • Phase 1
  • BRV
03

In context

Lead sponsor

UCB Biopharma SRL is the lead sponsor of 128 studies on the registry; 19 are open to participants now.

Of its 69 completed or terminated interventional studies of FDA-regulated products, 48 (70%) have results posted.

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

04

Who can participate

Ages eligible
20 Years to 50 Years
Sexes eligible
Male
Accepts 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

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
05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
64 participants (actual)

Study arms

  • Experimental
    Treatment A-B

    Study participants randomized to this arm will receive multiple doses of brivaracetam tablet (Treatment A) as reference and multiple doses of brivaracetam dry syrup (Treatment B) as test in the treatment sequence A-B at pre-specified timepoints.

    Drug: brivaracetam (BRV) tablet · Drug: brivaracetam (BRV) dry syrup

  • Experimental
    Treatment B-A

    Study participants randomized to this arm will receive multiple doses of brivaracetam tablet (Treatment A) as reference and multiple doses of brivaracetam dry syrup (Treatment B) as test in the treatment sequence B-A at pre-specified timepoints.

    Drug: brivaracetam (BRV) tablet · Drug: brivaracetam (BRV) dry syrup

Interventions

  • Drugbrivaracetam (BRV) tablet

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

    Also known as: BRV, Briviact

  • Drugbrivaracetam (BRV) dry syrup

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

    Also known as: BRV

06

What researchers measure

Primary outcomes

  1. 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

  2. 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

Secondary outcomes

  1. 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)

  2. 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)

  3. 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)

07

Results

Posted Jun 6, 2025

Participant flow

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

Participant flow — Overall Study
MilestoneSequence Brivaracetam (BRV) Tablet - BRV Dry SyrupSequence BRV Dry Syrup - BRV Tablet
Started3232
Completed3231
Not completed01
Withdrew: Protocol violation01

Outcome measures

PrimaryMaximum 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
Reported as:
Geometric mean · microgram per milliliter (μg/mL)
Maximum Plasma Concentration at Steady State [Cmax(ss)] After Multiple Doses of Brivaracetam
microgram per milliliter (μg/mL)BRV TabletBRV Dry Syrup
Maximum Plasma Concentration at Steady State [Cmax(ss)] After Multiple Doses of Brivaracetam2.963 ± 24.12.878 ± 19.5
Statistical analysis
  • BRV Tablet vs BRV Dry Syrup · Linear mixed model analysis · Ratio of dry syrup/ tablet: 0.9726 · 92.016% CI 0.9257 to 1.022
PrimaryArea 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
Reported as:
Geometric mean · hours*μg/mL
Area Under the Curve During a Dosing Interval at Steady State [AUC(Tau)] After Multiple Doses of Brivaracetam
hours*μg/mLBRV TabletBRV Dry Syrup
Area Under the Curve During a Dosing Interval at Steady State [AUC(Tau)] After Multiple Doses of Brivaracetam18.55 ± 17.418.53 ± 16.8
Statistical analysis
  • BRV Tablet vs BRV Dry Syrup · Ratio of dry syrup/ tablet: 0.9999 · 92.016% CI 0.9881 to 1.012
SecondaryPercentage 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)
Reported as:
Number · percentage of participants
Percentage of Study Participants With Treatment-emergent Adverse Events (TEAEs)
percentage of participantsBRV TabletBRV Dry Syrup
Percentage of Study Participants With Treatment-emergent Adverse Events (TEAEs)4.810.9
SecondaryPercentage 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)
Reported as:
Number · percentage of participants
Percentage of Study Participants With Treatment-emergent Serious Adverse Events (TESAEs)
percentage of participantsBRV TabletBRV Dry Syrup
Percentage of Study Participants With Treatment-emergent Serious Adverse Events (TESAEs)00
SecondaryPercentage 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)
Reported as:
Number · percentage of participants
Percentage of Participants With Treatment-emergent Adverse Events (TEAEs) Leading to Discontinuation
percentage of participantsBRV TabletBRV Dry Syrup
Percentage of Participants With Treatment-emergent Adverse Events (TEAEs) Leading to Discontinuation00

Adverse events

Collected over From Baseline to end of Safety Follow-Up (up to 25 days). Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
BRV Tablet0/63 (0%)0/63 (0%)2/63 (3.2%)
BRV Dry Syrup0/64 (0%)0/64 (0%)6/64 (9.4%)
Most frequent other events
Most frequent other events
EventBRV TabletBRV Dry Syrup
DizzinessNervous system disorders2/633/64
SomnolenceNervous system disorders1/633/64

Baseline characteristics

Baseline characteristics refers to the safety set (SS) which included all randomized participants who received at least 1 dose of the investigational medicinal product (IMP).

Age, Continuous
Age, Continuous(years)Sequence Brivaracetam (BRV) Tablet - BRV Dry SyrupSequence BRV Dry Syrup - BRV TabletTotal
Mean33.5 ± 9.833.8 ± 9.133.6 ± 9.4
Age, Customized
Age, Customized(Participants)Sequence Brivaracetam (BRV) Tablet - BRV Dry SyrupSequence BRV Dry Syrup - BRV TabletTotal
<=18 years000
19 - 65 years323264
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)Sequence Brivaracetam (BRV) Tablet - BRV Dry SyrupSequence BRV Dry Syrup - BRV TabletTotal
Female000
Male323264
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Sequence Brivaracetam (BRV) Tablet - BRV Dry SyrupSequence BRV Dry Syrup - BRV TabletTotal
Asian323264
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Sequence Brivaracetam (BRV) Tablet - BRV Dry SyrupSequence BRV Dry Syrup - BRV TabletTotal
Not Hispanic or Latino323264
08

Study locations

1 site
  • EP0231 1
    Sumida-ku, Japan
09

References and documents

Study documents

  • Study protocol · Dec 14, 2023
  • Statistical analysis plan · Jun 28, 2024

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — Due to the small sample size in this trial, IPD cannot be adequately anonymized i.e., there is a reasonable likelihood that individual participants could be re-identified. For this reason, data from this trial cannot be shared.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 6, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT06312566
Lead sponsor
UCB Biopharma SRL
Responsible party
Sponsor
First posted
Mar 15, 2024
Start date
Mar 25, 2024
Primary completion
Jun 4, 2024
Completion
Jun 4, 2024
Results posted
Jun 6, 2025
Last update
Jun 6, 2025

Study contacts

UCB Cares
study director · 001 844 599 2273 (UCB)

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in May 2025. You cannot join it, but the record below documents what was studied.

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