UNIVERSITY OF MALTA RESEARCH SEMINARS Abstract form Title: Drug therapy in epilepsy: new perspectives, new implications Presenter: Janet Mifsud Contact address: Dept Of Clinical Pharmacology and Therapeutics, University Of Malta, Msida, Malta, MSD06 Tel: +356 23402845 Fax: +356 21320281 Email: janet.mifsud@um.edu.mt Presentation date: 09.05.2005 Abstract (approximately 200-250 words) With a prevalence of 0.5-1.0% in the general population, epilepsy is one of the most serious neurological conditions, with considerable socio-economic implications. Treatment and prognosis differ depending on the type of epilepsy. Yet about 30% of patients remain pharmacoresistant. Pharmacological control still directed at symptoms not aetiology. This presentation will give an overview of the present guidelines with respect to drug treatment in epilepsy and discuss the ideal pharmacokinetic (PK) parameters for antiepileptic drugs (AEDs). PK determines AEDs ability to achieve and maintain concentrations that maximise safety and efficacy and to determine dosage regimen and mode of administration as well as formulation. An overview will be given of the improvements of the PK properties of the new AEDs with respect to the older ones. PK data for any medicinal product, even AEDs obtained from adults can not be automatically extrapolated to children. The paediatric population represents a vulnerable group with developmental, physiological and psychological differences from adults, which makes age and development related research particularly important. It is estimated that between 50 and 90 % of medicinal products used in paediatric population have never been specifically evaluated for use in that age group. The use of “off -label” and unauthorised products with the associated risks of inefficacy and/or adverse reactions is the only alternative solution for the physician to treat paediatric patients. Recent in this area carried out in our department will also be discussed.