PMID- 28268215 OWN - NLM STAT- MEDLINE DCOM- 20180424 LR - 20180424 IS - 1421-9891 (Electronic) IS - 1022-6877 (Linking) VI - 23 IP - 2 DP - 2017 TI - Randomised Comparison of a Novel Buprenorphine Oral Lyophilisate versus Existing Buprenorphine Sublingual Tablets in Opioid-Dependent Patients: A First-in-Patient Phase II Randomised Open Label Safety Study. PG - 61-70 LID - 10.1159/000456612 [doi] AB - AIMS: To test the safety of new buprenorphine oral lyophilisate wafer ("bup-lyo") versus standard sub-lingual buprenorphine ("bup-SL"). DESIGN: Randomised (2:1) open-label study; opioid-dependent subjects; subsequent partial cross-over. SETTINGS: Specialised clinical trials facility and addictions treatment facility. PARTICIPANTS: Opioid-dependent subjects (n = 36) commencing buprenorphine maintenance (personalised dose-titration) including patients co-using alcohol, cocaine and benzodiazepines (below thresholds). MEASUREMENTS: Respiratory function (respiratory rate, pulse-oximetry); medication hold and dose adequacy; opiate withdrawal signs and symptoms; tablet disintegration times; treatment retention. Pharmacokinetics (PK) for plasma buprenorphine and norbuprenorphine (n = 11). FINDINGS: Oral lyophilised buprenorphine ("bup-lyo") completely dissolved within 2 min for 58 vs. 5% for "bup-SL." Dose titration resulted in similar maintenance dosing (10.8 vs. 9.6 mg). There were no significant between-group differences in opiate-withdrawal phenomena, craving, adequacy of "hold," respiratory function. No serious adverse events (AEs), nor "severe" AEs, although more AEs and Treatment-Emergent AEs with "bup-lyo" (mostly "mild"). PK found greater bioavailability of buprenorphine with "bup-lyo" (but not norbuprenorphine). CONCLUSIONS: Orally disintegrating buprenorphine oral lyophilisate wafer disintegrated rapidly. No increased respiratory depression was found and clinically no difference between medications was observed. PK found substantially increased bioavailability of buprenorphine (but not of nor-buprenorphine) with "bup-lyo" relative to "bup-SL." In supervised dosing contexts, rapidly disintegrating formulations may enable wider buprenorphine prescribing. CI - (c) 2017 S. Karger AG, Basel. FAU - Strang, John AU - Strang J AD - King's College London, National Addiction Centre, Institute of Psychiatry, Psychology and Neuroscience, London, UK. FAU - Reed, Kylie AU - Reed K FAU - Bogdanowicz, Karolina AU - Bogdanowicz K FAU - Bell, James AU - Bell J FAU - van der Waal, Rob AU - van der Waal R FAU - Keen, Jenny AU - Keen J FAU - Beavan, Pete AU - Beavan P FAU - Baillie, Shelagh AU - Baillie S FAU - Knight, Alastair AU - Knight A LA - eng PT - Clinical Trial, Phase II PT - Journal Article PT - Randomized Controlled Trial DEP - 20170308 PL - Switzerland TA - Eur Addict Res JT - European addiction research JID - 9502920 RN - 0 (Analgesics, Opioid) RN - 0 (Tablets) RN - 40D3SCR4GZ (Buprenorphine) RN - 7E53B4O073 (norbuprenorphine) SB - IM MH - Analgesics, Opioid/adverse effects MH - Buprenorphine/*administration & dosage/*analogs & derivatives MH - Drug Administration Routes MH - Female MH - Humans MH - Opiate Substitution Treatment/*methods MH - Opioid-Related Disorders/*drug therapy MH - Tablets OTO - NOTNLM OT - Buprenorphine OT - Lyophilised OT - New treatment OT - Opiate addiction OT - Opioid substitute therapy OT - Phase II trial OT - Randomised trial OT - Rapidly-disintegrating buprenorphine OT - Safety study EDAT- 2017/03/08 06:00 MHDA- 2018/04/25 06:00 CRDT- 2017/03/08 06:00 PHST- 2016/08/09 00:00 [received] PHST- 2017/01/14 00:00 [accepted] PHST- 2017/03/08 06:00 [pubmed] PHST- 2018/04/25 06:00 [medline] PHST- 2017/03/08 06:00 [entrez] AID - 000456612 [pii] AID - 10.1159/000456612 [doi] PST - ppublish SO - Eur Addict Res. 2017;23(2):61-70. doi: 10.1159/000456612. Epub 2017 Mar 8.