NCT06646172

Brief Summary

In light of the ongoing controversy surrounding the efficacy of bupivacaine liposomes, our study was designed to investigate, for the first time, the differential postoperative analgesic effects between bupivacaine liposomes combined with bupivacaine hydrochloride and bupivacaine hydrochloride alone in transverse thoracic muscle plane block treatment. The aim is to provide evidence-based medical guidance for drug selection in regional block local anesthesia.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
38

participants targeted

Target at P25-P50 for not_applicable

Timeline
5mo left

Started Oct 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress78%
Oct 2024Oct 2026

First Submitted

Initial submission to the registry

October 12, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

October 17, 2024

Completed
7 days until next milestone

Study Start

First participant enrolled

October 24, 2024

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 24, 2024

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

October 12, 2026

Expected
Last Updated

October 28, 2024

Status Verified

October 1, 2024

Enrollment Period

Same day

First QC Date

October 12, 2024

Last Update Submit

October 24, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Third-day opioid consumption

    Opioid consumption was converted to Milligram morphine equivalent (MME) using the analgesic Drug Equivalence calculator.

    48-72 hours after surgery

Secondary Outcomes (7)

  • Cumulative opioid consumption 72 hours after surgery

    0-72 hours after surgery

  • Numerical rating scales, NRS

    24 hours, 48 hours and 72 hours after surgery

  • Sensory block resolution time

    0-72 hours after surgery

  • Consumption of acetaminophen

    0-72 hours after surgery

  • Consumption of rescue opioid administration

    0-72 hours after surgery

  • +2 more secondary outcomes

Study Arms (2)

Mixture of liposome bupivacaine and bupivacaine hydrochloride

EXPERIMENTAL

The same anesthesiologist with experience in regional block was used for ultrasound guided bilateral transverse thoracic muscle plane block (T4-5 interstital space, paracentral transverse axis position). According to the literature, in this study, 1.33% bupivacaine liposome 10 mL + 0.5% bupivacaine hydrochloride 10 ml was used.

Procedure: Transverse thoracic muscle plane block (TTMPB) using liposomal bupivacaine and bupivacaine mixture

Bupivacaine hydrochloride alone

ACTIVE COMPARATOR

The same anesthesiologist with experience in regional block was used for ultrasound guided bilateral transverse thoracic muscle plane block (T4-5 interstital space, paracentral transverse axis position). According to the literature, in this study, 0.5% bupivacaine 20ml was used.

Procedure: Transverse thoracic muscle plane block (TTMPB) using bupivacaine hydrochloride

Interventions

Liposomal bupivacaine and bupivacaine mixture were used for transverse thoracic muscle plane block (TTMPB) in experimental group.

Mixture of liposome bupivacaine and bupivacaine hydrochloride

Bupivacaine hydrochloride was used for transverse thoracic muscle plane block (TTMPB) in active control group.

Bupivacaine hydrochloride alone

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients aged 18-90 years;
  • ASA Class I \~ III;
  • Patients undergoing elective median sternotomy.

You may not qualify if:

  • Emergency surgery;
  • Re-operation;
  • Coagulation dysfunction;
  • Preoperative left ventricular function was poor (ejection fraction \<35%);
  • Systemic infection or injection site infection;
  • Neuromuscular diseases;
  • Mental illness;
  • Dependence on psychotropic drugs;
  • Allergic to bupivacaine liposomes and bupivacaine;
  • Patients have participated in previous trials or have been determined by a surgeon or anesthesiologist to be unsuitable for randomization;
  • Failure to obtain written informed consent from the patient or his/her representative

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tianzhu Liu

Wuhan, Hubei, 430000, China

RECRUITING

Study Officials

  • Mei Wei, M.D.

    Tongji Hospital

    STUDY DIRECTOR

Central Study Contacts

Liu Tianzhu, M.D.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

October 12, 2024

First Posted

October 17, 2024

Study Start

October 24, 2024

Primary Completion

October 24, 2024

Study Completion (Estimated)

October 12, 2026

Last Updated

October 28, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will not share

Locations