Repeat or Single Quadratus Lumborum Block for the Reduction of Opioid Prescriptions After Surgery in Retroperitoneal Sarcoma Patients ("RESQU-SARC" Trial)

April 10, 2026 updated by: M.D. Anderson Cancer Center

Randomized Controlled Trial of Repeat vs. Single Quadratus Lumborum Block to Reduce Opioid Prescriptions After Open Resection of Retroperitoneal Sarcoma ("RESQU-SARC" Trial)

This phase II trial studies how well a repeat or single liposomal bupivacaine injection (quadratus lumborum block) works in reducing opioid prescriptions after surgery in patients with retroperitoneal sarcoma. Liposomal bupivacaine is a numbing medication. Giving a second injection block may decrease dependency on opioid medications for pain relief after surgery and prevent long-term use and addiction.

Study Overview

Detailed Description

PRIMARY OBJECTIVE:

I. To use a pragmatic phase II randomized controlled trial to compare two standardized bundles of usual care for postoperative pain management to reduce the initial discharge prescription opioid volume.

SECONDARY OBJECTIVE:

I. To assess which pragmatic arm improves aspects of postoperative recovery including 30-day, 3-month, and 1-year opioid use, patient symptom inventory at those time points, hospital measures including length of stay and inpatient pain scores.

OUTLINE: Patients are randomized to 1 of 2 arms.

ARM I: Patients receive standard of care liposomal bupivacaine injection before and during surgery and standard of care non-opioids and opioids at days 0-3 after surgery in the absence of unacceptable toxicity.

ARM II: Patients receive standard of care liposomal bupivacaine injection before and during surgery and standard of care non-opioids and opioids at days 0-3 after surgery in the absence of unacceptable toxicity. Patients then receive a second liposomal bupivacaine injection on day 4 after surgery.

After completion of study treatment, patients are followed up at 1, 3, and 12 months after the surgery.

Study Type

Interventional

Enrollment (Actual)

113

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Texas
      • Houston, Texas, United States, 77030
        • M D Anderson Cancer Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients undergoing elective open sarcoma resection for potentially curative intent who would otherwise be treated with quadratus lumborum (QL) block + intravenous-patient controlled analgesia (IV-PCA) converted to oral pain medications (meds) (non-narcotic bundle + opioid pain pill)

Exclusion Criteria:

  • Patients with current or past substance (drug or alcohol) abuse disorder
  • Laparoscopic or minimally invasive surgery
  • Cases in which anticipated discharge is on or before postoperative day 4

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Arm I (liposomal bupivacaine)
Patients receive standard of care liposomal bupivacaine injection before and during surgery and standard of care non-opioids and opioids at days 0-3 after surgery in the absence of unacceptable toxicity.
Ancillary studies
Patients receive standard of care liposomal bupivacaine injection before and during surgery, followed by standard of care non-opioids and opioids at days 0-3 after surgery in the absence of unacceptable toxicity
Other Names:
  • Exparel
  • Bupivacaine Liposome Injectable Suspension
Patients receive standard of care liposomal bupivacaine injection before and during surgery, followed by standard of care non-opioids and opioids at days 0-3 after surgery in the absence of unacceptable toxicity. Patients receive a second liposomal bupivacaine injection ("RESQU" block) on day 4 after surgery
Other Names:
  • QL Block
Experimental: Arm II (liposomal bupivacaine)
Patients receive standard of care liposomal bupivacaine injection before and during surgery and standard of care non-opioids and opioids at days 0-3 after surgery in the absence of unacceptable toxicity. Patients then receive a second liposomal bupivacaine injection on day 4 after surgery.
Ancillary studies
Patients receive standard of care liposomal bupivacaine injection before and during surgery, followed by standard of care non-opioids and opioids at days 0-3 after surgery in the absence of unacceptable toxicity
Other Names:
  • Exparel
  • Bupivacaine Liposome Injectable Suspension
Patients receive standard of care liposomal bupivacaine injection before and during surgery, followed by standard of care non-opioids and opioids at days 0-3 after surgery in the absence of unacceptable toxicity. Patients receive a second liposomal bupivacaine injection ("RESQU" block) on day 4 after surgery
Other Names:
  • QL Block

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Initial Discharge Prescription Oral Morphine Equivalents (OME)
Time Frame: At time of discharge (median of 9 days)
After sarcoma surgery, our historical discharge opioid prescription was a median of 300mg oral morphine equivalents (OME) in 2016-2018, with 5% patients discharged opioid-free. The primary objective of this study was to compare 2 novel opioid-reduction bundles to increase the proportion of opioid-free patients.
At time of discharge (median of 9 days)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Proportion of Participants With Discharge Prescription OME = Zero
Time Frame: At time of discharge (median of 9 days)
Comparing the rate of opioid free patients at discharge between the 2 Arms
At time of discharge (median of 9 days)
Participant Reported Outcomes for Gastrointestinal Surgery- MD Anderson Symptom Inventory (MDASI-GI) at Discharge and 1 Month After Surgery.
Time Frame: Scores at discharge and 1 month after the surgery
Compare the scores based on MDASI-GI between the 2 Arms. Score from 0 to 10 to define participant feelings with 0 for none and 10 for worst.
Scores at discharge and 1 month after the surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Christopher Scally, M.D. Anderson Cancer Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 8, 2020

Primary Completion (Actual)

October 26, 2024

Study Completion (Estimated)

December 31, 2026

Study Registration Dates

First Submitted

December 3, 2019

First Submitted That Met QC Criteria

December 4, 2019

First Posted (Actual)

December 6, 2019

Study Record Updates

Last Update Posted (Actual)

April 14, 2026

Last Update Submitted That Met QC Criteria

April 10, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 2019-0780 (Other Identifier: M D Anderson Cancer Center)
  • NCI-2019-07564 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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