Seizure Free Rate: Percentage of Participants Who Did Not Have Any Seizure Episode Within the Last Month of the Maintenance Period (ie, Month 4). Month 4 [clinicaltrials_resource:920b53d1e0fab658a81bf73d2b000621]

Seizure frequency (seizure count/month) was calculated based on the number of seizure within a month. The mean seizure frequency analyzed by the ANCOVA model at each period.

Seizure Free Rate: Percentage of Participants Who Did Not Have Any Seizure Episode Within the Last Month of the Maintenance Period (ie, Month 4). Month 4 [clinicaltrials_resource:920b53d1e0fab658a81bf73d2b000621]

Seizure frequency (seizure count/month) was calculated based on the number of seizure within a month. The mean seizure frequency analyzed by the ANCOVA model at each period.