Related Experiment Video
Updated: Oct 4, 2026

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy
Published on: September 20, 2024
Therapeutic intensive seizure analysis (TISA) in presurgical evaluation of Losigamone
1Department of Neurology, Epilepsy Center, University of Erlangen-Nuernberg, 91054 Erlangen, Germany. hermann.stefan@neuro.med.uni-erlangen.de
Objective:
The new method TISA was used to evaluate Losigamone efficacy.
Methods:
Sixteen patients with pharmacoresistant partial seizures undergoing presurgical evaluation were randomized in this double-blind, placebo-controlled, parallel-group Losigamone monotherapy study under continuous video-EEG monitoring. Duration (in s, of each seizure and each ictal sign), intensity (grade zero to three), N/24h (number of seizures and ictal signs per 24 h), D/24h (seconds per 24 h covered by seizures and ictal signs) and seizure free intervals were recorded.
Results:
A total of 246 seizures were intensively analyzed. The duration and intensity of all seizures improved more in the active treatment group than in the placebo group. There was a statistically significant superiority in the duration of the seizure free interval in the Losigamone group. Ictal signs such as oro-alimentary automatisms and fumbling were improved during Losigamone treatment.
Conclusion:
Losigamone has a preferred inhibitory effect on propagated epileptic activity. TISA is a sensitive method for evaluation of the selective effects of AEDs.

