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Taking people in JapanPhase 2

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

Where in Japan

  • Ehime University HospitalEhime, JapanTaking people
  • Department of Neurology and Stroke Center, Southern Tohoku Clinic.Fukushima, JapanTaking people
  • Hiroshima University HospitalHiroshima, JapanTaking people
  • NHO Kure Medical Center and Chugoku Cancer CenterHiroshima, JapanTaking people
  • Asahikawa Medical University HospitalHokkaido, JapanTaking people
  • Itami City HospitalHyōgo, JapanTaking people
  • JA-Ibaraki Tsuchiura Kyodo General HospitalIbaraki, JapanTaking people
  • University of Tsukuba HospitalIbaraki, JapanTaking people
  • Kagoshima University HospitalKagoshima, JapanTaking people
  • Tanaka Neurosurgical ClinicKagoshima, JapanTaking people
  • St. Marianna University School of Medicine HospitalKanagawa, JapanTaking people
  • Yokohama City University HospitalKanagawa, JapanTaking people
  • Kumamoto Ezuko Rehabilitation Medical CenterKumamoto, JapanTaking people
  • NHO Nagasaki Medical CenterNagasaki, JapanTaking people
  • Koide Clinic of Epilepsy and Neurological DisordersOsaka, JapanTaking people
  • Osaka University HospitalOsaka, JapanTaking people
  • Shintokukai Nii Neurosurgery and Psychiatry ClinicOsaka, JapanTaking people
  • Ochiai Brain ClinicSaitama, JapanTaking people
  • TMG Asaka Medical CenterSaitama, JapanTaking people
  • Sakurai ClinicShiga, JapanTaking people
  • NHO Shizuoka Institute of Epilepsy and Neurological DisordersShizuoka, JapanTaking people
  • Seirei Hamamatsu General HospitalShizuoka, JapanTaking people
  • Seirei Mikatahara General HospitalShizuoka, JapanTaking people
  • Jichi Medical University HospitalTochigi, JapanTaking people
  • Tokushima University HospitalTokushima, JapanTaking people
  • Medical Hospital, Tokyo Medical and Dental UniversityTokyo, JapanTaking people
  • National Center of Neurology and PsychiatryTokyo, JapanTaking people
  • Tokyo Medical University HospitalTokyo, JapanTaking people
  • NHO Yamagata National HospitalYamagata, JapanTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
Print a page for my doctor

Trial 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.

ClinicalTrials.gov NCT06590896