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A Study to Evaluate the Safety, Efficacy, and PK of ONO-2017 in Japanese Patients With POS 2 to 17 Year Olds

A Multicenter, Open-label Study to Evaluate the Safety, Efficacy, and Pharmacokinetics of ONO-2017 in Japanese Patients With Partial Onset Seizures Aged 2 to Under 18 Years.

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07594158
Enrollment
20
Registered
2026-05-18
Start date
2026-05-30
Completion date
2029-12-31
Last updated
2026-05-18

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

Conditions

Partial Epilepsy

Brief summary

Primary objective: To evaluate the safety and tolerability of cenobamate in Japanese pediatric subjects 2-17 years of age with partial-onset (focal) seizures

Detailed description

Secondary objectives: To evaluate the efficacy of cenobamate tablets and suspension in Japanese pediatric subjects with partial onset (focal) seizures To evaluate the pharmacokinetics of cenobamate tablets and suspension in Japanese pediatric subjects with partial onset seizures

Interventions

DRUGCenobamate (tablet) for 12 to < 18 year olds

The tablet form of ONO-2017 will be initiated at a dose of 12.5 mg once daily and titrated in the specified method to a target dose of 200 mg per day. The daily dose may be increased/reduced as appropriate according to symptoms within the range not exceeding 400 mg. In addition, depending on clinical response and tolerability, dose titration may be stopped at a dose of ≥ 50 mg per day to establish the maintenance dose. In principle, all doses should be taken with an appropriate amount of water in the morning. The dosage form for the doses will be selected by the principal investigator or designee. ONO-2017 can be treated until ONO-2017 is market approved, enters the market, and becomes available for supply to the study site.

DRUGCenobamate (syrup) for 2 to < 18 year olds

The syrup form of ONO-2017 will be administered at a dose equivalent to that for 12-18 year olds on a body weight basis

Sponsors

Ono Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
2 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

* Japanese male or female patients aged 2 to under 18 years at the time of informed consent. * Patients diagnosed with epilepsy as having POS with uncontrolled seizures at least 6 months prior to informed consent, regardless of the presence or absence of secondarily generalized seizures. * Patients who have had POS at least once in 4 weeks before registration. Seizure information can be obtained from the participant's own retrospective patient epilepsy diary, etc. * Participants must have been treated with 1 to 3 ASMs at stable doses for at least 2 months before registration.

Exclusion criteria

* Patients with a history of status epilepticus requiring hospitalization within 3 months before registration. * Patients with a history of non-epileptic psychogenic seizures. * Patients with simple partial seizures without motor symptoms or idiopathic generalized epilepsy. * Patients diagnosed with Lennox-Gastaut syndrome. * Patients with a history of serious drug-induced hypersensitivity reaction (e.g., Stevens-Johnson syndrome, toxic epidermal necrolysis, DRESS, drug-induced hypersensitivity syndrome \[DIHS\]) or drug-induced rash requiring hospitalization.

Design outcomes

Primary

MeasureTime frame
Adverse events and adverse drug reactions1 year

Countries

Japan

Contacts

CONTACTNorth America Clinical Trial Support Desk
clinical_trial@ono-pharma.com+18665877745 (Toll-Free)
CONTACTInternational Clinical Trial Support Desk
clinical_trial@ono-pharma.com+17162141777 (Standard)
STUDY_DIRECTORProject Leader

Ono PharmaceuticalCo., Ltd.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 19, 2026