For most people with epilepsy, long term treatment with anti-epileptic drugs (AEDs) are necessary to prevent the seizure, and 40% do not respond to the first line of AED, leading to an often lifelong odyssey of trial and error towards effective treatment that is often not found. Epilepsy is primarily treated using AEDs, but these are associated with a considerable risk for adverse drug reactions (ADRs), some of which have been shown to have a genetic predisposition. For example, the genetic variant HLA-A*3101 is a common risk factor for rash and severe blistering skin reactions with the drug carbamazepine (Tegretol) in Europeans. However there are few other predictors of some more common ADRs.
The EpiPGX Consortium was established to identify genetic biomarkers of epilepsy treatment response from patient centres across Europe. The EpiPGX Consortium has generated genetic profiles on over 8000 patients with matching detailed drug response and medical histories. In order to investigate the links between genetic profiles and ADRs in epilepsy, Dr. Mark McCormack will travel to UMC Utrecht, the Netherlands for one year on a Marie-Skłodowska-Curie Fellowship from the European Commission.
The aim of this fellowship is to identify clinically useful genetic variants to predict adverse reactions to AEDs. This will help optimize personalized treatment, limit the trial and error approach of AED choice, and thus improve medication safety and quality of life in epilepsy.