PMID- 22266897 OWN - NLM STAT- MEDLINE DCOM- 20120921 LR - 20190109 IS - 1532-8651 (Electronic) IS - 1098-7339 (Linking) VI - 37 IP - 2 DP - 2012 Mar-Apr TI - Bupivacaine extended-release liposome injection exhibits a favorable cardiac safety profile. PG - 145-51 LID - 10.1097/AAP.0b013e31823d0a80 [doi] AB - BACKGROUND AND OBJECTIVES: Bupivacaine extended-release liposome injection is an investigational local analgesic intended for use in postsurgical pain management. In recognition of the incompletely characterized association of bupivacaine use and cardiac effects, this article reviews the cardiac safety profile of this novel formulation of bupivacaine. METHODS: Findings from paired electrocardiograms (ECGs), corresponding pharmacokinetic assessments, and cardiovascular adverse events (AEs) in a phase 2, randomized, double-blind, dose-ranging study of bupivacaine extended-release (150, 300, 450, or 600 mg) or bupivacaine HCl 150 mg with epinephrine administered intraoperatively via wound infiltration in patients undergoing total knee arthroplasty (n = 138), were assessed for potential causality. Results from 4 phase 1 bupivacaine extended-release studies that also obtained ECG and/or Holter monitor findings (n = 169) were assessed. In addition, incidences of cardiovascular AEs reported across 10 bupivacaine extended-release wound infiltration studies (n = 1459) were pooled and assessed. RESULTS: In the phase 2 study, mean change from baseline in QRS duration and QTcF duration across dose levels of bupivacaine extended-release was similar (range, -1 to +4 milliseconds and -7 to -10 milliseconds) compared with bupivacaine HCl (-1 millisecond and -6 milliseconds). Mean change from baseline in heart rate, PR interval, and QRS interval was similar between treatment groups as well. No clinically relevant ECG changes or cardiac AEs with bupivacaine extended-release were observed in the other clinical studies. CONCLUSIONS: A focused assessment of ECG data from a phase 2 study and cardiac findings/AEs data from other studies in the bupivacaine extended-release development program did not reveal any cardiac safety issues. FAU - Bergese, Sergio D AU - Bergese SD AD - Department of Anesthesiology, Ohio State University, Columbus, OH 43210, USA. sergio.bergese@osumc.edu FAU - Onel, Erol AU - Onel E FAU - Morren, Michael AU - Morren M FAU - Morganroth, Joel AU - Morganroth J LA - eng PT - Clinical Trial, Phase II PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PL - England TA - Reg Anesth Pain Med JT - Regional anesthesia and pain medicine JID - 9804508 RN - 0 (Delayed-Action Preparations) RN - 0 (Liposomes) RN - Y8335394RO (Bupivacaine) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Bupivacaine/*administration & dosage/*adverse effects MH - Delayed-Action Preparations/administration & dosage/adverse effects MH - Dose-Response Relationship, Drug MH - Double-Blind Method MH - Electrocardiography/*drug effects MH - Female MH - Heart Diseases/chemically induced/*epidemiology MH - Humans MH - Liposomes MH - Male MH - Middle Aged MH - Retrospective Studies MH - Young Adult EDAT- 2012/01/24 06:00 MHDA- 2012/09/22 06:00 CRDT- 2012/01/24 06:00 PHST- 2012/01/24 06:00 [entrez] PHST- 2012/01/24 06:00 [pubmed] PHST- 2012/09/22 06:00 [medline] AID - 10.1097/AAP.0b013e31823d0a80 [doi] PST - ppublish SO - Reg Anesth Pain Med. 2012 Mar-Apr;37(2):145-51. doi: 10.1097/AAP.0b013e31823d0a80.