Epilepsy trials in Japan

In Japan 9 Also abroad 452

9 trials · From ClinicalTrials.gov, checked 11 November 2026. Ask the study team whether a trial fits you.

Phase 3Taking people
A Randomized Study of XEN1101 Versus Placebo in Focal-Onset Seizures (X-TOLE3)
Where
Hamamatsu, Hiroshima, Itami, Kagoshima, Kyoto, Niigata, Tokushima, Tokyo
Age
18 years and over
People
360 worldwide
Run by
Xenon Pharmaceuticals Inc.
See details and how to joinNCT05716100 · EU 2022-502281-25-00
Phase 3Enrolling by invitation
A Study to Investigate LP352 in Children and Adults With Developmental and Epileptic Encephalopathy (DEE)
Where
Kodaira-shi, Mibu-Machi, Narita-shi, Niigata, Okayama, Osaka, Saitama-Shi, Shizuoka
Age
2 years to 66 years
People
324 worldwide
Run by
Longboard Pharmaceuticals
See details and how to joinNCT06908226 · EU 2024-514974-39-00
Phase 1/2Taking people
A First-in-human Study of S230815 in Pediatric Participants With KCNT1-related Developmental and Epileptic Encephalopathy
Where
Nagano, Osaka, Shizuoka
Age
2 years to 12 years
People
20 worldwide
Run by
Institut de Recherches Internationales Servier
See details and how to joinNCT07227857 · EU 2024-513332-17-00
Phase 3Taking people
A Study to Evaluate the Safety, Efficacy, and PK of ONO-2017 in Japanese Patients With POS 2 to 17 Year Olds
Where
Fukuoka
Age
2 years to 17 years
People
20
Run by
Ono Pharmaceutical Co., Ltd.
See details and how to joinNCT07594158
Phase 3Taking people
A Study to Test the Safety and Tolerability of Brivaracetam in Children and Adolescents With Seizures
Where
Bunkyō City, Chūō, Gifu, Hiroshima, Kodaira-shi, Kōshi, Kyoto, Nagoya, Niigata, Ōbu, Ōmura, Osaka, Sapporo, Sendai, Shimotsuke, Shizuoka, Tokyo, Yokohama, Yonago
Age
1 month and over
People
70 worldwide
Run by
UCB Biopharma SRL
See details and how to joinNCT04715646
No phaseEnrolling by invitation
5-SENSE Score Validation Study
Where
Kyoto
Age
15 years and over
People
400 worldwide
Run by
Duke University
See details and how to joinNCT06138808
No phaseTaking people
A Survey of Midazolam in People With Status Epilepticus
Where
Tokyo
People
50
Run by
Clinigen K.K.
See details and how to joinNCT05313308
Phase 3Taking people
ONO-2017 Study Japanese Patients With Primary Generalized Tonic Clonic Seizures.
Where
Aichi, Fukuoka, Fukushima, Hiroshima, Hokkaido, Hyōgo, Ibaraki, Kagoshima, Kanagawa, Niigata, Osaka, Saitama, Shizuoka, Tochigi, Tokyo, Yamaguchi, Yamanashi
Age
12 years and over
People
15
Run by
Ono Pharmaceutical Co., Ltd.
See details and how to joinNCT06579573
Phase 2Taking people
Safety of Cenobamate in Japanese Subjects With Partial Onset Seizures
Where
Ehime, Fukushima, Hiroshima, Hokkaido, Hyōgo, Ibaraki, Kagoshima, Kanagawa, Kumamoto, Nagasaki, Osaka, Saitama, Shiga, Shizuoka, Tochigi, Tokushima, Tokyo, Yamagata
People
100
Run by
Ono Pharmaceutical Co., Ltd.
See details and how to joinNCT06590896