Abstract
The pharmacokinetics, metabolism, safety, and tolerability of the antiseizure medication brivaracetam (BRV) were characterized in 16 healthy elderly participants (8 men/8 women) aged 65-78years who received a single 200-mg oral dose of BRV on day 1, followed by 200mg twice daily from day 3 until day 12. BRV and three metabolites were determined in plasma and urine. Adverse events, vital signs, electrocardiograms, laboratory tests, general and neurological examinations, and psychometric rating scales were recorded at regular intervals. No clinically relevant changes or abnormalities were detected. The adverse events were similar to those observed in pivotal trials. Rating scales indicated transiently increased sedation and decreased alertness. BRV pharmacokinetics and metabolism were unchanged relative to younger populations. Based on our observations in this healthy elderly population receiving oral BRV 200mg twice daily (twice the maximum recommended dose), dose reductions are not warranted relative to other, younger populations. Further investigations may be necessary in frail elderly populations aged >80years.
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