Long-term safety of cenobamate in Japanese people with partial seizures
Tests cenobamate over the long term in Japanese people with epilepsy and partial seizures.
Plain-language title generated from the registry record
Registry title: Safety of Cenobamate in Japanese Subjects With Partial Onset Seizures
Key facts
- Where
- Ehime, Fukushima, Hiroshima, Hokkaido, Hyōgo, Ibaraki, Kagoshima, Kanagawa, Kumamoto, Nagasaki, Osaka, Saitama, Shiga, Shizuoka, Tochigi, Tokushima, Tokyo, and Yamagata, JapanSee the 29 sites
- Phase
- Phase 2
AI summary: who the study is looking for
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for Japanese people with partial seizures who finished the earlier study YKP3089C035 and now continue cenobamate to check its long-term safety.
- Sex
- All sexes can join.
- Disease stage
- Partial onset seizures (partial epilepsy).
- Earlier treatment
- People must have finished the earlier study YKP3089C035 by SK Life Science.
Main reasons for not taking part
- Stopped the earlier study YKP3089C035 early for any reason
- Big changes in medical history that the investigator thinks could affect safety
Read by machine on 12 November 2026.
Where in Japan
- Ehime University HospitalEhime, JapanContact: North America Clinical Trial Support DeskTaking people
- Department of Neurology and Stroke Center, Southern Tohoku Clinic.Fukushima, JapanContact: North America Clinical Trial Support DeskTaking people
- Hiroshima University HospitalHiroshima, JapanContact: North America Clinical Trial Support DeskTaking people
- NHO Kure Medical Center and Chugoku Cancer CenterHiroshima, JapanContact: North America Clinical Trial Support DeskTaking people
- Asahikawa Medical University HospitalHokkaido, JapanContact: North America Clinical Trial Support DeskTaking people
- Itami City HospitalHyōgo, JapanContact: North America Clinical Trial Support DeskTaking people
- JA-Ibaraki Tsuchiura Kyodo General HospitalIbaraki, JapanContact: North America Clinical Trial Support DeskTaking people
- University of Tsukuba HospitalIbaraki, JapanContact: North America Clinical Trial Support DeskTaking people
- Kagoshima University HospitalKagoshima, JapanContact: North America Clinical Trial Support DeskTaking people
- Tanaka Neurosurgical ClinicKagoshima, JapanContact: North America Clinical Trial Support DeskTaking people
- St. Marianna University School of Medicine HospitalKanagawa, JapanContact: North America Clinical Trial Support DeskTaking people
- Yokohama City University HospitalKanagawa, JapanContact: North America Clinical Trial Support DeskTaking people
- Kumamoto Ezuko Rehabilitation Medical CenterKumamoto, JapanContact: North America Clinical Trial Support DeskTaking people
- NHO Nagasaki Medical CenterNagasaki, JapanContact: North America Clinical Trial Support DeskTaking people
- Koide Clinic of Epilepsy and Neurological DisordersOsaka, JapanContact: North America Clinical Trial Support DeskTaking people
- Osaka University HospitalOsaka, JapanContact: North America Clinical Trial Support DeskTaking people
- Shintokukai Nii Neurosurgery and Psychiatry ClinicOsaka, JapanContact: North America Clinical Trial Support DeskTaking people
- Ochiai Brain ClinicSaitama, JapanContact: North America Clinical Trial Support DeskTaking people
- TMG Asaka Medical CenterSaitama, JapanContact: North America Clinical Trial Support DeskTaking people
- Sakurai ClinicShiga, JapanContact: North America Clinical Trial Support DeskTaking people
- NHO Shizuoka Institute of Epilepsy and Neurological DisordersShizuoka, JapanContact: North America Clinical Trial Support DeskTaking people
- Seirei Hamamatsu General HospitalShizuoka, JapanContact: North America Clinical Trial Support DeskTaking people
- Seirei Mikatahara General HospitalShizuoka, JapanContact: North America Clinical Trial Support DeskTaking people
- Jichi Medical University HospitalTochigi, JapanContact: North America Clinical Trial Support DeskTaking people
- Tokushima University HospitalTokushima, JapanContact: North America Clinical Trial Support DeskTaking people
- Medical Hospital, Tokyo Medical and Dental UniversityTokyo, JapanContact: North America Clinical Trial Support DeskTaking people
- National Center of Neurology and PsychiatryTokyo, JapanContact: North America Clinical Trial Support DeskTaking people
- Tokyo Medical University HospitalTokyo, JapanContact: North America Clinical Trial Support DeskTaking people
- NHO Yamagata National HospitalYamagata, JapanContact: North America Clinical Trial Support DeskTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorTrial details
- Who runs it
- Ono Pharmaceutical Co., Ltd.
- Trial code
- NCT06590896
- Record updated
- 3 June 2025
- Original description
To evaluate the long-term safety and tolerability of cenobamate in Japanese epilepsy patients with partial seizuresRead full original descriptionShow less
A Phase 2, Multicenter Open-Label Extension Study to Evaluate the Long-term Safety of Cenobamate in Japanese Subjects With Partial Onset Seizures
To evaluate the long-term safety and tolerability of cenobamate in Japanese epilepsy patients with partial seizures
Inclusion: Subjects completed Study YKP3089C035 by SK Life Science.
Exclusion: Subjects that have previously discontinued for any reason from the Core study (YKP3089C035); Any significant changes to the medical history of the subject that in the opinion of the investigator, could affect the safety of the subject.