ClinicalTrials.gg
WithdrawnNCT03377595Updated May 18, 2021

Post C-Section Pain Control Using EXPAREL

A Phase 4 interventional study of Exparel and Exparel in Pain, Postoperative, sponsored by University of Minnesota. Withdrawn at 1 site in United States. Open to female participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-05-18.

Sponsored by University of Minnesota · Phase 4, Interventional, and Treatment

Why this study was withdrawn
Lack of resources, no data collected
Phase
Phase 4
Study type
Interventional
Enrollment
0
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 92 studies testing Liposomal Bupivacaine in Pain, Postoperative — 13 open to participants now, 14 under way, 2 of them phase 3. Liposomal Bupivacaine · Pain, Postoperative.

Enrollment
88th of 92
0 · median 80
Started
2019
with 14 others
Phase 4
52 of 92
5 open now
Registered
35th of 92
by date

Among the 92 studies testing Liposomal Bupivacaine in Pain, Postoperative, this one is the 88th largest by enrollment, is one of 15 that started in 2019, is one of 52 in phase 4, and was the 35th registered.

By phase

92 studies; the count open now beside each. This study's row is marked.

Phase 4this study52 · 5 open
Phase 311 · 0 open
No phase8 · 2 open
Phase 18 · 2 open
Phase 28 · 2 open
Phase 2/35 · 2 open

By the year they started

First in 2012; this study’s year is marked. 15 started in 2019.

Size and results

Median enrollment 80 across the 92 interventional studies. Of the 61 that completed or were terminated, 41 (67%) have results posted.

Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 92 studies testing Liposomal Bupivacaine in Pain, Postoperative, or all of them as a file.
02

Study summary

Evaluating the safety and efficacy of EXPAREL (Liposomal Bupivacaine ) for pain control in patients undergoing scheduled cesarean section by giving it either as infiltration in Transversus Abdominis Plane after finishing the procedure or through wound infiltration into the fascia prior to closure of skin

03

Conditions studied

  • Pain, Postoperative

Browse trials for

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Females 18 years of age and older at screening.
  2. Term pregnancies of 37 to 42 weeks gestation, scheduled to undergo elective C-section.
  3. ASA () physical status 1, 2, or 3 are able to provide , adhere to the study visit schedule, and complete all study assessments

Exclusion criteria

Exclusion Criteria:

  1. Age \<18
  2. > or equal to 40 or otherwise not anatomically appropriate to undergo a TAP block.
  3. Planned general anesthetic
  4. Cesarean delivery via vertical skin incision
  5. Allergy, , intolerance, or to any of the study medications.
  6. Planned concurrent surgical procedure with the exception of salpingo-oophorectomy or tubal ligation.
  7. Severely impaired renal or hepatic function (eg, serum creatinine level >2 mg/dL [176.8 µmol/L], blood urea nitrogen level >50 mg/dL [17.9 mmol/L], serum [AST] level >3 times the , or serum alanine aminotransferase [ALT] level >3 times the upper limit of normal.)
  8. Subjects at an increased risk for bleeding or a coagulation disorder (defined as count less than 80, 000 × 103/mm3 or greater than 1.5).
  9. Concurrent painful physical condition that may require analgesic treatment (such as long-term, consistent use of opioids) in the postsurgical period for pain that is not strictly related to the surgery and which may confound the postsurgical assessments.
  10. medical disease in either the mother or baby that, in the opinion of the investigator, would make participation in a clinical study inappropriate. This includes any psychiatric or other disease in the mother that would constitute a contraindication to participation in the study or cause the mother to be unable to comply with the study requirements.
  11. History of, suspected, or known addiction to or abuse of illicit drug(s), prescription medicine(s), or alcohol within the past 2 years.
  12. Administration of an drug within 30 days or 5 elimination half-lives of such investigational drug, whichever is longer, prior to study drug administration, or planned administration of another investigational product or procedure during the subject's participation in this study
  13. Previous participation in an EXPAREL study.
  14. Any clinically significant event or condition uncovered during the surgery (eg, excessive bleeding, acute sepsis) that might render the subject medically unstable or complicate the subject's postsurgical course.
  15. Initiation of treatment with any of the following medications within 1 month of study drug administration or if the medication(s) are being given to control pain: selective serotonin reuptake inhibitors (SSRIs), selective norepinephrine reuptake inhibitors (SNRIs), gabapentin, pregabalin (Lyrica®), or duloxetine (Cymbalta®). If a subject is taking one of these medications for a reason other than pain control, she must be on a stable dose for at least 1 month prior to study drug administration.
  16. Use of any of the following medications within the times specified before surgery: long-acting opioid medication, non-steroidal anti-inflammatory drugs (NSAIDs), or aspirin (except for low-dose aspirin used for cardioprotection) within 3 days, or any opioid medication or acetaminophen within 24 hours.
Terms in these criteria, in plain language(11)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ASA physical status

The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    TAP (Transversus Abdominis Plane) block

    20-mL dose of EXPAREL 266 mg expanded in volume with 20 mL normal saline plus 20 mL 0.25% bupivacaine for a total volume of 60 mL m.A 2-point classic TAP block will be performed under ultrasound guidance within 1 hour (± 30 minutes) following skin incision closure of the C-section.

    Drug: Exparel

  • Experimental
    Wound infiltration

    20 mL of EXPAREL 266 mg expanded in volume with 40 mL normal saline for a total volume of 60 mL, infiltrated in the fascia prior to skin closure with attention to infiltrate the angles of the incision.

    Drug: Exparel

Interventions

  • TAP (Transversus Abdominis Plane) block

    Also known as: Saline

  • Wound infiltration

    Also known as: Saline

06

What researchers measure

Primary outcomes

  1. Total opioid consumption

    Total opioid medication use by patient after having cesarean section

    Time frame: 72 hours

Secondary outcomes

  1. Time to first rescue opioid pain medication

    Time till the patient asks for opioid medication for breakthrough pain

    Time frame: 72 hours

  2. Percentage of opioid-free subjects

    Percentage of patients didn't require any opioid medications after the cesarean section

    Time frame: 24,48, and 72 hours

  3. Patient's satisfaction

    Patient's satisfaction questionnaire with pain control

    Time frame: through 72 hours post-op or at discharge

  4. VAS (visual analogue scale) pain scores

    pain level assessment using visual assessment pain score which ranges from zero for no pain to 10 intolerable pain

    Time frame: at 6, 12, 18, 24, 30, 36, 42, 48, and 72 hours after surgery

  5. Number of participants with EXPAREL related adverse events

    side effects of EXPAREL

    Time frame: through day 14 post-op

  6. Allergic reactions attributable to local anesthetic use

    Such as allergies, rash etc...

    Time frame: through day14 post-op

  7. Wound complications

    cesarean section wound complications like infection, hematoma, and dehiscence

    Time frame: through day 14 post-op

07

Study locations

1 site
  • University of Minnesota
    Minneapolis, Minnesota 55455, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 18, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03377595
Responsible party
Sponsor
First posted
Dec 19, 2017
Start date
Jul 2, 2019
Primary completion
Aug 30, 2019
Completion
Sep 1, 2019
Last update
May 18, 2021

Study contacts

Hiba Mustafa, MD
principal investigator · University of Minnesota

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in May 2021. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Liposomal Bupivacaine

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