PMID- 30357823 OWN - NLM STAT- MEDLINE DCOM- 20190404 LR - 20190404 IS - 1528-1167 (Electronic) IS - 0013-9580 (Linking) VI - 59 IP - 11 DP - 2018 Nov TI - Pharmacokinetics of clobazam oral soluble film. PG - 2153-2161 LID - 10.1111/epi.14581 [doi] AB - OBJECTIVE: Clobazam oral soluble film (COSF) is a novel dosage form under development for the adjunctive treatment of seizures associated with Lennox-Gastaut syndrome. The present study was undertaken to assess the pharmacokinetics of clobazam administered as single doses of COSF 20 and 10 mg compared with clobazam tablets (CTAB) 20 and 10 mg in healthy adults. A secondary objective was to assess the safety and tolerability of single doses of COSF 20 and 10 mg. METHODS: A total of 51 adult volunteers were enrolled in a single-dose, open-label, randomized four-sequence, four-period, crossover study with treatments (A) COSF 20 mg, (B) CTAB 20 mg, (C) COSF 10 mg, and (D) CTAB 10 mg. Pharmacokinetic sampling for clobazam and N-desmethylclobazam was carried out until 21 days postdose with a 28-day washout. Subjects were monitored for adverse events (AEs) throughout the study. Visual inspections of the administration site were performed before and after COSF administration to monitor for mucosal irritation. RESULTS: COSF at single doses of 10 and 20 mg was bioequivalent to CTAB at equivalent doses for both clobazam and its active metabolite N-desmethylclobazam. The pharmacokinetics of both formulations was dose-proportional at doses of 10 and 20 mg. The number of AEs and the number of subjects experiencing AEs were dose-related across the treatment groups, with somnolence the most common event. None of these events was severe or serious, and most were mild. There was no evidence for local irritation at the administration site following COSF. SIGNIFICANCE: COSF is a novel clobazam dosage form that is bioequivalent to CTAB. Because of its ease of administration, COSF may be expected to improve adherence, reduce likelihood of dosing error, and provide more accurate dosing than formulations of clobazam that are currently available. CI - (c) 2018 The Authors. Epilepsia published by Wiley Periodicals, Inc. on behalf of International League Against Epilepsy. FAU - Heller, Allen H AU - Heller AH AD - Pharma Study Design LLC, Woodbridge, Connecticut. FAU - Wargacki, Stephen AU - Wargacki S AD - Aquestive Therapeutics, Inc, Warren, New Jersey. FAU - Jung, Cassie AU - Jung C AD - Aquestive Therapeutics, Inc, Warren, New Jersey. FAU - Buan, Carla V AU - Buan CV AD - Aquestive Therapeutics, Inc, Warren, New Jersey. FAU - Wyatt, David J AU - Wyatt DJ AD - Syneos Health Clinical Solutions, Early Phase, Miami, Florida. FAU - Schobel, A Mark AU - Schobel AM AD - Aquestive Therapeutics, Inc, Warren, New Jersey. LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20181024 PL - United States TA - Epilepsia JT - Epilepsia JID - 2983306R RN - 0 (Anticonvulsants) RN - 2MRO291B4U (Clobazam) SB - IM MH - Administration, Oral MH - Adolescent MH - Adult MH - Anticonvulsants/*pharmacokinetics MH - Area Under Curve MH - Clobazam/*pharmacokinetics MH - Cross-Over Studies MH - Dose-Response Relationship, Drug MH - Drug Delivery Systems/*methods MH - Female MH - Healthy Volunteers MH - Humans MH - Male MH - Middle Aged MH - Single-Blind Method MH - Therapeutic Equivalency MH - Young Adult OTO - NOTNLM OT - Lennox-Gastaut OT - N-desmethylclobazam OT - anticonvulsants OT - antiepileptics OT - bioequivalence EDAT- 2018/10/26 06:00 MHDA- 2019/04/05 06:00 CRDT- 2018/10/26 06:00 PHST- 2018/06/29 00:00 [received] PHST- 2018/09/21 00:00 [revised] PHST- 2018/09/21 00:00 [accepted] PHST- 2018/10/26 06:00 [pubmed] PHST- 2019/04/05 06:00 [medline] PHST- 2018/10/26 06:00 [entrez] AID - 10.1111/epi.14581 [doi] PST - ppublish SO - Epilepsia. 2018 Nov;59(11):2153-2161. doi: 10.1111/epi.14581. Epub 2018 Oct 24.