Thoracic Clinical Trial
Official title:
Pharmacokinetics of Single-Dose Liposomal Bupivacaine in Surgeon Performed Intercostal Nerve Blocks
Verified date | May 2022 |
Source | University of Virginia |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Post-surgery pain management is critical for ensuring timely patient recovery and minimizing complications. Part of the multimodal approach to managing severe acute pain in the days following surgeries is the use of nerve blocks. The relatively short-lived effect of commonly used local anesthetics recently prompted the development and subsequent approval of a liposomal formulation of bupivacaine (Exparel; Pacira Pharmaceuticals, Parsippany, New Jersey). It has demonstrated favorable pharmacokinetics compared to bupivacaine HCl(hydrochloride), with a slower release into blood stream of up to 96 hours after administration, following a single dose wound infiltration at the end of various surgeries. Studies using other modes of administration reported similar results. Thoracic surgeries pose an exceptional challenge as they are one of the most painful surgeries and poor pain-management contributes to reduced quality of life and severely delayed recovery. The anesthesiology protocol within the Enhanced Recovery After Surgery (ERAS) program at medical centers across the world aim to increase patient comfort after surgery while reducing complications and use of opioids. As a common part of this protocol, intercostal nerve blocks with liposomal bupivacaine are regularly utilized for reduction of post-thoracotomy pain and studies show that it may be just as or more effective than bupivacaine HCl for treatment of pain, decreasing hospital stays and reducing the incidence of complications. Despite its frequent use in the surgical room for nerve blocks, the pharmacokinetics of a single dose injection of liposomal bupivacaine at the intercostal nerves has never been investigated. The aim of this study is to assess the pharmacokinetics of liposomal bupivacaine injected at the intercostal nerves. The results of this small-scale study will aid in the development of larger such studies in the future, and may aid in the standardization of post-thoracotomy pain management. Specifically, the information gleaned from this study will allow for the optimal use of additional local anesthetics, particularly those administered intravenously, for the purpose of obtaining maximal pain relief while minimizing the occurrence of local anesthetic toxicity.
Status | Completed |
Enrollment | 15 |
Est. completion date | August 11, 2020 |
Est. primary completion date | October 11, 2019 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - over 18 years of age - Undergoing thoracotomy Exclusion Criteria: - Non-English speaking - Pregnant women (self reported) - Prisoners - Weighing <50 kg - Allergy to local anesthetics - Unable to consent for themselves |
Country | Name | City | State |
---|---|---|---|
United States | University of Virginia Health System | Charlottesville | Virginia |
Lead Sponsor | Collaborator |
---|---|
University of Virginia |
United States,
Davidson EM, Barenholz Y, Cohen R, Haroutiunian S, Kagan L, Ginosar Y. High-dose bupivacaine remotely loaded into multivesicular liposomes demonstrates slow drug release without systemic toxic plasma concentrations after subcutaneous administration in humans. Anesth Analg. 2010 Apr 1;110(4):1018-23. doi: 10.1213/ANE.0b013e3181d26d2a. — View Citation
De Cosmo G, Aceto P, Gualtieri E, Congedo E. Analgesia in thoracic surgery: review. Minerva Anestesiol. 2009 Jun;75(6):393-400. Epub 2008 Oct 27. Review. — View Citation
Hu D, Onel E, Singla N, Kramer WG, Hadzic A. Pharmacokinetic profile of liposome bupivacaine injection following a single administration at the surgical site. Clin Drug Investig. 2013 Feb;33(2):109-15. doi: 10.1007/s40261-012-0043-z. Review. — View Citation
Mehran RJ, Walsh GL, Zalpour A, Cata JP, Correa AM, Antonoff MB, Rice DC. Intercostal Nerve Blocks With Liposomal Bupivacaine: Demonstration of Safety, and Potential Benefits. Semin Thorac Cardiovasc Surg. 2017 Winter;29(4):531-537. doi: 10.1053/j.semtcvs.2017.06.004. Epub 2017 Jun 6. — View Citation
Rice DC, Cata JP, Mena GE, Rodriguez-Restrepo A, Correa AM, Mehran RJ. Posterior Intercostal Nerve Block With Liposomal Bupivacaine: An Alternative to Thoracic Epidural Analgesia. Ann Thorac Surg. 2015 Jun;99(6):1953-60. doi: 10.1016/j.athoracsur.2015.02.074. Epub 2015 Apr 23. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Tmax, or the Time Until the Maximum Concentration | the tmax, or the time until the maximum concentration | until study completion, which is 6 months on average |
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