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. 2010 Jul;35(7):392–415.

Table 4.

Experimental Compounds In Phases 1 to 3 of Clinical Development

Unapproved Antiepileptic Agents Structural Relationship
Fluorofelbamate Felbamate
Brivaracetam (Rikelta) Levetiracetam
Seletracetam Levetiracetam
Valrocemide Valproic acid
Valnoctamide Valproic acid
Propyl isopropyl acetamide Valproic acid
Isovaleramide Valproic acid
Carisbamate Carbamate
Ganaxolone Allopregnanolone
Talampanel Benzodiazepine derivative
ICA-27243 Retigabine
JZP-4 Lamotrigine
Licarbazepine Oxcarbazepine
ELB139 Benzodiazepine receptor agonist
T2000 Phenobarbital
XP13512 Gabapentin
Tonabersat Benzopyran
YKP-3089 New chemical unrelated to others
NAX5055 Galanin analogue
NPS1776 Broad-spectrum antiseizure butanamide
ELB139 Benzodiazepine agonist
ICA27243 Selective KCNQ2/Q3 activators with anticonvulsant-like activity
Paxiline Preclinical development only
NS1209 Enhance GABAergic transmission
2-deoxy-d-glucose Antiseizure activity