NCT05635916

Brief Summary

Total knee arthroplasty (TKA), also known as a knee replacement, is a procedure performed to reduce severe pain and improve function of the joint. Managing postoperative pain can be challenging following TKA, and inadequate relief can lead to impaired mobility and persistent opioid use. Adductor canal nerve blocks (ACB), have shown significant benefit in improving postoperative analgesia and patient satisfaction. However, the local anesthetic used currently for these blocks only provides temporary relief that wears off within 24 hours. Liposomal bupivacaine is an extended-release local anesthetic agent that can provide up to 72 hours of pain relief, however it is unclear if its use is also effective in ACBs for knee surgery. The purpose of this study is to determine if liposomal bupivacaine is better than conventional bupivacaine in improving pain control, opioid consumption, and length of stay in patients scheduled for TKA.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
80

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Sep 2022

Shorter than P25 for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 22, 2022

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

September 26, 2022

Completed
2 months until next milestone

First Posted

Study publicly available on registry

December 2, 2022

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 11, 2023

Completed
6 days until next milestone

Study Completion

Last participant's last visit for all outcomes

April 17, 2023

Completed
Last Updated

July 7, 2023

Status Verified

July 1, 2023

Enrollment Period

7 months

First QC Date

September 26, 2022

Last Update Submit

July 5, 2023

Conditions

Outcome Measures

Primary Outcomes (3)

  • To compare the efficacy of liposomal bupivacaine to conventional bupivacaine for adductor canal blocks in adults scheduled for total knee arthroplasty.

    The primary outcome of this study will be composite pain scores 24 hours after surgery. Others have shown that composite pain scores quantify pain with greater accuracy than a single measurement. Jensen et. al. concluded in their study that composite pain intensity scores from two or more individual ratings of pain are valid for detecting treatment effects.23 Pain scores will be measured using a numeric rating scale (NRS) (0=no pain; 10= worst possible pain) "Worst," "average," and "least" pain scores will be assessed for the preceding time interval at 24, 48, and 72 hours following surgery. If a participant is discharged prior to 72 hours after surgery, they will be given a log to record their pain scores and pain medication use to report to study staff via telephone.

    Measured at 24 hours post-op

  • To compare postoperative pain scores and opioid consumption at 48 hours after surgery.

    The primary outcome of this study will be composite pain scores 24 hours after surgery. Others have shown that composite pain scores quantify pain with greater accuracy than a single measurement. Jensen et. al. concluded in their study that composite pain intensity scores from two or more individual ratings of pain are valid for detecting treatment effects.23 Pain scores will be measured using a numeric rating scale (NRS) (0=no pain; 10= worst possible pain) "Worst," "average," and "least" pain scores will be assessed for the preceding time interval at 24, 48, and 72 hours following surgery. If a participant is discharged prior to 72 hours after surgery, they will be given a log to record their pain scores and pain medication use to report to study staff via telephone.

    Measured at 48 hours post-op

  • To compare postoperative pain scores and opioid consumption at 72 hours after surgery.

    The primary outcome of this study will be composite pain scores 24 hours after surgery. Others have shown that composite pain scores quantify pain with greater accuracy than a single measurement. Jensen et. al. concluded in their study that composite pain intensity scores from two or more individual ratings of pain are valid for detecting treatment effects.23 Pain scores will be measured using a numeric rating scale (NRS) (0=no pain; 10= worst possible pain) "Worst," "average," and "least" pain scores will be assessed for the preceding time interval at 24, 48, and 72 hours following surgery. If a participant is discharged prior to 72 hours after surgery, they will be given a log to record their pain scores and pain medication use to report to study staff via telephone.

    Measure at 72 hours post-op

Secondary Outcomes (2)

  • To compare postoperative opioid consumption measured as morphine milligram equivalents (MME) at 24 hours postoperatively.

    Measured intraoperatively, in PACU at 4 hours post-op, and at 24,48, and 72 hours post-op.

  • To compare total length of postoperative stay following surgical stop time.

    Measure at discharge, an average of 1 day.

Study Arms (2)

Liposomal Bupivacaine

EXPERIMENTAL

Adductor canal block using liposomal bupivacaine and conventional bupivacaine

Drug: Liposomal bupivacaine

Standard of Care

ACTIVE COMPARATOR

Adductor canal block using conventional bupivacaine

Drug: Bupivacaine

Interventions

Adductor canal block with injection of 10cc 13.3% liposomal bupivacaine combined with 10cc 0.50% bupivacaine within one hour following surgery

Liposomal Bupivacaine

Adductor canal block with injection of 20cc 0.5% bupivacaine within one hour following surgery

Standard of Care

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients 18 years and older who are scheduled for a total knee arthroplasty at Northern Light Mercy Hospital

You may not qualify if:

  • Patients under the age of 18

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Northern Light Mercy Hospital

Portland, Maine, 04102, United States

Location

Related Publications (1)

  • Quaye A, McAllister B, Garcia JR, Nohr O, Laduzenski SJ, Mack L, Kerr CR, Kerr DA, Razafindralay CN, Richard JM, Craig WY, Rodrigue S. A prospective, randomized trial of liposomal bupivacaine compared to conventional bupivacaine on pain control and postoperative opioid use in adults receiving adductor canal blocks for total knee arthroplasty. Arthroplasty. 2024 Feb 1;6(1):6. doi: 10.1186/s42836-023-00226-y.

MeSH Terms

Conditions

Pain, Postoperative

Interventions

Bupivacaine

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsPainNeurologic ManifestationsSigns and Symptoms

Intervention Hierarchy (Ancestors)

AnilidesAmidesOrganic ChemicalsAniline CompoundsAmines

Study Officials

  • Brian McAllister, MD

    Medical Staff & Chief of Anesthesia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The randomization scheme will be developed using NQuery Software (Statistical Solutions, Boston, MA). The analyst will provide the research coordinator with randomization assignments in sequentially-numbered opaque envelopes. As the study is unblinded, both patients and providers will be aware of the randomization assignment. To help mitigate bias, the team members collecting and entering data will be masked regarding the patient's assignment. The REDCap database has the randomization assignments in an instrument separate from the study data collection instruments, allowing for data entry without seeing which group the subject is in.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 26, 2022

First Posted

December 2, 2022

Study Start

September 22, 2022

Primary Completion

April 11, 2023

Study Completion

April 17, 2023

Last Updated

July 7, 2023

Record last verified: 2023-07

Data Sharing

IPD Sharing
Will not share

Locations