Sveinbjornsdottir, S and Sander, J and Upton, Dominic and Thompson, Pamela and Patsalos, P and Hirt, D and Lowe, D and Duncan, John (1993) The Excitatory Amino Acid Antagonist D-CPP-ene (SDZ EAA-494) in Patients With Epilepsy. Epilepsy Research, 16 (2). pp. 165-174.
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Official URL: http://tinyurl.com/2u35hpx
The amino acids l-glutamate and l-aspartate have been shown to be excitatory neurotransmitters in mammalian central nervous systems. Antagonists acting selectively at excitatory amino acid receptors have shown antiepileptic properties in several animal models. We report the results of the first therapeutic trial of the competitive NMDA antagonist, d-CPP-ene (SDZ EAA-494), in eight patients with intractable complex partial seizures. All patients withdrew prematurely because of side-effects, including poor concentration (8), sedation (7), ataxia (6), depression (3), dysarthria (2), amnesia (2) and unilateral choreo-athetosis in a patient with contralateral Sturge-Weber syndrome. Seizures were unchanged in four patients and worse in three. A further patient with apparent improvement in seizures in the first week developed complex partial status epilepticus on withdrawal of dCPP-ene. EEG on treatment (5) or in the immediate post-treatment period (2) showed slowing of background activity and, in five cases, an increase in epileptiform activity. Serum concentrations of DCPP-ene were found to be unpredictable and higher than expected from pharmacokinetic data on normal subjects. There was no clear relationship between serum concentrations and the severity of side-effects. Preliminary experience with dCPP-ene in patients with refractory partial seizures is not promising. Evaluation of related compounds is warranted.
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|Uncontrolled Keywords:||complex partial seizures, excitatory amino acids, NMDA receptor, competitive antagonist|
|Subjects:||R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry|
B Philosophy. Psychology. Religion > BF Psychology
|Divisions:||Academic Departments > Institute of Health and Society|
|Deposited By:||Laura Scurlock|
|Deposited On:||23 Jul 2010 09:37|
|Last Modified:||23 Jul 2010 13:58|
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