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Zynrelef vs Exparel: The Battle of Postoperative Pain Control After Robotic Sleeve Gastrectomy

Who can join

Ages 18 to 65 · All sexes · Healthy volunteers welcome

Inclusion Criteria:

1. Age range: 18-65 years old
2. Scheduled or being scheduled to undergo robotic sleeve gastrectomy by Dr. Goyal.
3. Is able to provide written informed consent.
4. Is able to adhere to the study visit schedule and complete all study assessments.

Exclusion Criteria:

1. Positive urine drug screen prior to surgery
2. History of substance abuse in the past year-by self report
3. Patient with ongoing daily narcotic use at the time of surgery-by self report
4. Inability to understand informed consent or read English/Spanish
5. Pregnant or lactating patients
6. Prisoners
7. Patients with renal or hepatic failure
8. Bupivacaine use within 96 hours of operation
9. Patient intolerant of opiates, nonsteroidal anti-inflammatory drug s, acetaminophen, or Zynrelef and Exparel. Subjects in all cohorts must not have any contraindications to any of the protocol-specified drugs
10. Patient with a history of asthma, urticaria, or other allergic-type reactions after taking aspirin or other NSAIDs. Severe, sometimes fatal, anaphylactic reactions to NSAIDs have been reported in such patients

About the study

The purpose of this study is to evaluate the use of an injectable combination of bupivacaine and meloxicam (Zynrelef) vs injectable liposomal bupivacaine (Exparel), two extended local anesthesia strategies currently approved by FDA and on the market for post-surgical pain control. The investigators plan on randomizing study participants to either Exparel or Zynrelef at the closure site of robotic sleeve gastrectomy and assessing their pain control postoperatively both in the hospital and at home. The investigators will measure the outcome of two drugs, Zynrelief, and Exparel on postoperative pain score -using the NRS pin score up to 72 hours after surgery. The total opioid use will be recorded in forms that will be used to measure pain score and total opioid use and will be collected to the Excel sheet. The cost of the drug will be calculated for internal use for Hospital purpose only.

What is being tested

• Zynrelef (drug)
• Exparel (drug)

Sponsor: Texas Tech University Health Sciences Center · Participants: 130 · Started: Nov 1, 2024

Contact the study team

• Tommy Wright, DO · Phone: 8176888021

Official record on ClinicalTrials.gov — NCT06349772

Locations in the U.S.

Conditions

• Pain After Surgery

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.