PMID- 22722651 OWN - NLM STAT- MEDLINE DCOM- 20121227 LR - 20181201 IS - 1423-0313 (Electronic) IS - 0031-7012 (Linking) VI - 90 IP - 1-2 DP - 2012 TI - Bioequivalence of intravenous and oral formulations of the antiepileptic drug lacosamide. PG - 40-6 LID - 10.1159/000339077 [doi] AB - BACKGROUND/AIMS: To evaluate the bioequivalence of intravenous and oral lacosamide (tablet), an antiepileptic drug. METHODS: Two randomized, single-dose (200 mg) trials were conducted: a 2-way trial (study A, 15-min infusion, oral tablet) and a 3-way crossover trial (study B, 30- and 60-min infusions, oral tablet). Twenty four healthy men participated in study A and 27 in study B. Eighteen blood samples were taken before to 72 h after lacosamide administration during each treatment period, followed by a 1-week washout. Safety and the ratio of intravenous/oral lacosamide for AUC(0-tz) (area under the concentration-time curve from zero up to the last measurable plasma concentration) and C(max) (maximum plasma concentration) were evaluated. RESULTS: For AUC(0-tz) and C(max), 90% confidence intervals for the ratio of intravenous/oral lacosamide fell within the predetermined bioequivalence range (80-125%) for 30- and 60-min infusions. In study A, all adverse events (AEs) were mild, with no discontinuations. In study B, 3 volunteers discontinued due to AEs; one serious AE (epiglottitis) was reported. No clinically relevant effects on vital signs, electrocardiograms or laboratory parameters and no AEs relating to infusion site were reported. CONCLUSION: Intravenous infusions (15, 30 and 60 min) of 200 mg lacosamide are as well tolerated as the oral tablet. Bioequivalence was demonstrated for 30- and 60-min infusions; therefore, direct conversion from oral to intravenous lacosamide, or vice versa, is possible. CI - Copyright (c) 2012 S. Karger AG, Basel. FAU - Cawello, Willi AU - Cawello W AD - UCB Pharma, Monheim, Germany. Willi.Cawello@ucb.com FAU - Bonn, Rainer AU - Bonn R FAU - Boekens, Hilmar AU - Boekens H LA - eng PT - Comparative Study PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20120621 PL - Switzerland TA - Pharmacology JT - Pharmacology JID - 0152016 RN - 0 (Acetamides) RN - 0 (Anticonvulsants) RN - 563KS2PQY5 (Lacosamide) SB - IM MH - Acetamides/administration & dosage/adverse effects/*pharmacokinetics MH - Administration, Oral MH - Adolescent MH - Adult MH - Anticonvulsants/administration & dosage/adverse effects/*pharmacokinetics MH - Area Under Curve MH - Cross-Over Studies MH - Humans MH - Infusions, Intravenous MH - Lacosamide MH - Male MH - Middle Aged MH - Therapeutic Equivalency MH - Young Adult EDAT- 2012/06/23 06:00 MHDA- 2012/12/28 06:00 CRDT- 2012/06/23 06:00 PHST- 2012/03/16 00:00 [received] PHST- 2012/03/30 00:00 [accepted] PHST- 2012/06/23 06:00 [entrez] PHST- 2012/06/23 06:00 [pubmed] PHST- 2012/12/28 06:00 [medline] AID - 000339077 [pii] AID - 10.1159/000339077 [doi] PST - ppublish SO - Pharmacology. 2012;90(1-2):40-6. doi: 10.1159/000339077. Epub 2012 Jun 21.