ThoracicPhase 4NCT03708198
Pharmacokinetics of Single-Dose Liposomal Bupivacaine in Surgeon Performed Intercostal Nerve Blocks
A Phase 4 study testing Liposomal Bupivacaine in people with Thoracic, run by University of Virginia at 1 site in United States.
Trial summary
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. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Thoracic
- What is being tested?
- Liposomal Bupivacaine
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 15 participants
- Where
- 1 siteUnited States
- Study dates
- 11 Jun 2018to 11 Aug 2020
- Phase
- Phase 4
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- over 18 years of age
- Undergoing thoracotomy
Who cannot join
- Non-English speaking
- Pregnant women (self reported)
- Prisoners
- Weighing <50 kg
- Allergy to local anesthetics
- Unable to consent for themselves
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Virginia Health System
Charlottesville, Virginia, 22908
About this study
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.
Read the detailed description
In this study, patients who are undergoing thoracotomies will be consented separately from the surgery itself.
Patients will be consented for the study in the surgical clinic or on the day of the surgery in the Surgical Admission Suites (SAS), prior to being taken to the OR. The study participants will be given a standard 266 mg single dose injection of liposomal bupivacaine by the surgeon at the start of the surgery. Immediately prior to the injection of the local anesthetic, 5 ml of blood will be drawn from the patient via the arterial line. The arterial line will be placed as part of standard surgery procedure and not for the purposes of the study. Blood will then be drawn from the patient after the injection of the local anesthetic at 5 mins, 15 mins, 30 mins, 1, 2, 4, 8, 12, 24, 48, 72 and 96 h. Each blood draw will be 5 ml. Blood will be drawn a total of 13 times.
The arterial line will not remain in the patient for the purposes of the study and will be removed per standard procedure. If more blood samples are needed after the arterial line is removed, we will first attempt to obtain blood an existing venous catheter. If blood cannot be obtained this way, a venipuncture will be performed.
Blood samples will be analyzed for the following pharmacokinetic parameters: area under the serum concentration-time infinity (AUC), maximum observed serum concentration (Cmax), time to attain Cmax (Tmax), and apparent terminal elimination half-life (T1/2).
At the time blood samples are drawn, pain scores will be recorded on a standard ten-point pain scale. These pain scores will be omitted if the patient is under general anesthesia.
- Conditions
- Thoracic
- Being tested
- Liposomal Bupivacaine
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Liposomal BupivacaineDrug
intercostal block
| Study group | Role | What they receive |
|---|---|---|
| Intercostal Nerve Block | Other | The study participants will be given a standard 266 mg single dose injection of liposomal bupivacaine by the surgeon at the start of the surgery. Receives: Drug: Liposomal Bupivacaine |
What is being measured
The primary outcome is the main question the study is designed to answer.
Tmax, or the Time Until the Maximum Concentration
the tmax, or the time until the maximum concentration
Measured: until study completion, which is 6 months on average
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Oct 2018
- Study start11 Jun 2018
- Primary completion11 Oct 2019
- Study completion11 Aug 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for ThoracicStudies of the same condition, open and under way.
- More trials run by University of VirginiaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 15 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Virginia
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, William Manson, MD, University of Virginia
- Investigators
- William Manson, MD, Principal investigator, UVA Department of Anesthesiology
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03708198
- Sponsor's protocol ID
- 180006
- Status last verified
- May 2022
- First submitted
- 8 Jun 2018
- Last updated
- 23 May 2022
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
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.
PubMed 23229686Davidson 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.
PubMed 20357145De 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.
PubMed 18953284Mehran 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.
PubMed 29698654Rice 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.
PubMed 25912739
Study at a glance
From the registry record, last updated by the sponsor on 23 May 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Pharmacokinetics of Single-Dose Liposomal Bupivacaine in Surgeon Performed Intercostal Nerve Blocks
- ClinicalTrials.gov ID
- NCT03708198
- Acronym / sponsor ID
- 180006
- Conditions
- Thoracic
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 15 participants (actual)
- Lead sponsor
- University of VirginiaUniversity, hospital or other
- Study start
- 11 Jun 2018 (actual)
- Primary completion
- 11 Oct 2019 (actual)
- Study completion
- 11 Aug 2020 (actual)
- First posted
- 17 Oct 2018 (actual)
- Results
- Posted 23 May 2022
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Detailed description
In this study, patients who are undergoing thoracotomies will be consented separately from the surgery itself.
Patients will be consented for the study in the surgical clinic or on the day of the surgery in the Surgical Admission Suites (SAS), prior to being taken to the OR. The study participants will be given a standard 266 mg single dose injection of liposomal bupivacaine by the surgeon at the start of the surgery. Immediately prior to the injection of the local anesthetic, 5 ml of blood will be drawn from the patient via the arterial line. The arterial line will be placed as part of standard surgery procedure and not for the purposes of the study. Blood will then be drawn from the patient after the injection of the local anesthetic at 5 mins, 15 mins, 30 mins, 1, 2, 4, 8, 12, 24, 48, 72 and 96 h. Each blood draw will be 5 ml. Blood will be drawn a total of 13 times.
The arterial line will not remain in the patient for the purposes of the study and will be removed per standard procedure. If more blood samples are needed after the arterial line is removed, we will first attempt to obtain blood an existing venous catheter. If blood cannot be obtained this way, a venipuncture will be performed.
Blood samples will be analyzed for the following pharmacokinetic parameters: area under the serum concentration-time infinity (AUC), maximum observed serum concentration (Cmax), time to attain Cmax (Tmax), and apparent terminal elimination half-life (T1/2).
At the time blood samples are drawn, pain scores will be recorded on a standard ten-point pain scale. These pain scores will be omitted if the patient is under general anesthesia.
Study design
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Intercostal Nerve Block | Other | Drug: Liposomal BupivacaineThe study participants will be given a standard 266 mg single dose injection of liposomal bupivacaine by the surgeon at the start of the surgery. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- over 18 years of age
- Undergoing thoracotomy
Key exclusion criteria (6 listed)
- Non-English speaking
- Pregnant women (self reported)
- Prisoners
- Weighing <50 kg
- Allergy to local anesthetics
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Liposomal Bupivacaineintercostal block | Drug | Intercostal Nerve Block |
Primary outcome
Tmax, or the Time Until the Maximum Concentration
Time frame: until study completion, which is 6 months on average
the tmax, or the time until the maximum concentration
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 May 2022.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 23229686Hu 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.
- Background: PubMed 20357145Davidson 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.
- Background: PubMed 18953284De 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.
- Background: PubMed 29698654Mehran 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.
- Background: PubMed 25912739Rice 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.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
William Manson, MD principal investigator
UVA Department of Anesthesiology
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Liposomal Bupivacaine in people with Thoracic, run by University of Virginia at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 23 May 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 23 May 2022). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Tmax, or the Time Until the Maximum Concentration (time frame: until study completion, which is 6 months on average). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03708198, which also lists 5 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 May 2022.