Perampanel is a drug used to treat patients with epilepsy/seizures. This study is designed to determine how much perampanel actually crosses the blood brain barrier into the cerebral spinal fluid when the drug is taken.~During a routinely scheduled neurosurgical procedure, one to two mL of cerebral spinal fluid will be obtained from the subarachnoid space of the brain. Five mL of arterial blood will also be drawn from the patients arterial line during their procedure. The blood samples and cerebral spinal fluid samples will be compared to see how much perampanel is in the blood versus the cerebrospinal fluid.
Perampanel is a drug used to treat patients with epilepsy/seizures. This study is designed to determine how much perampanel actually crosses the blood brain barrier into the cerebral spinal fluid when the drug is taken.