ClinicalTrials.gg
CompletedNCT04518462STRIDEUpdated Jul 18, 2022Results posted

Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of EXPAREL, EXPAREL Admixed With Bupivacaine HCl vs. Bupivacaine HCl Administered as Combined Sciatic and Saphenous Nerve Blocks for Postsurgical Analgesia in Subjects Undergoing Lower Extremity Surgeries

A Phase 3 interventional study of Exparel and Bupivacaine Hydrochloride in Lower Extremity Surgery, Bunion and Metatarsophalangeal Fushion, sponsored by Pacira Pharmaceuticals, Inc. Completed at 5 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-07-18.

Sponsored by Pacira Pharmaceuticals, Inc · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
121
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is a Phase 3, multicenter, randomized, double blinded, active controlled study in approximately 120 subjects undergoing lower extremity surgeries.

02

Conditions studied

  • Lower Extremity Surgery
  • Bunion
  • Metatarsophalangeal Fushion
  • Midfoot Fusion
  • Hindfoot Fushion
  • Total Ankle Arthroplasty

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03

In context

Bunion

58 studies on the registry are indexed under Bunion; 5 are open to participants now.

This study's enrollment of 121 is above the median of 100 across 47 interventional studies indexed under Bunion.

Browse Bunion studies →

Lead sponsor

Pacira Pharmaceuticals, Inc is the lead sponsor of 102 studies on the registry; 3 are open to participants now.

Of its 26 completed or terminated interventional studies of FDA-regulated products, 17 (65%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

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. Healthy adult male or female volunteers ages 18 or older
  2. (ASA) physical status 1, 2, or 3
  3. Able to provide , adhere to the study schedule, and complete all study assessments
  4. (BMI) ≥18 and ≤40 kg/m2

Exclusion criteria

Exclusion Criteria:

  1. Allergy, , intolerance, or to any of the study medications for which an alternative is not named in the protocol (e.g., amide-type local anesthetics, opioids, bupivacaine HCl, nonsteroidal anti-inflammatory drugs [NSAIDs])
  2. Concurrent painful physical condition that may require analgesic treatment (such as long-term, consistent use of opioids) in the post dosing period for pain and which, in the investigator's opinion, may confound the post dosing assessments
  3. History of, suspected, or known addiction to or abuse of illicit drug(s), prescription medicine(s), or alcohol within the past 2 years
  4. 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
  5. Previous participation in an EXPAREL study
  6. Uncontrolled anxiety, schizophrenia, or other psychiatric disorder that, in the opinion of the investigator, could interfere with study assessments or compliance
  7. Currently pregnant, nursing, or planning to become pregnant during the study
  8. medical disease that, in the opinion of the investigator, would make participation in a clinical study inappropriate. This includes diabetic neuropathy, coagulation or bleeding disorders, severe peripheral vascular disease, renal insufficiency, hepatic dysfunction or other conditions that would constitute a contraindication to participation in the study.
  9. Currently on a neuromodulating agent neuroleptic agent (e.g., gabapentin, pregabalin [Lyrica], duloxetine [Cymbalta], etc.)
  10. Inadequate sensory function on the foot (monofilament test)
  11. Chronic opioid use within 30 days prior to randomization (average ≥30 oral morphine equivalents/day)
Terms in these criteria, in plain language(7)

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.

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.

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.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
121 participants (actual)

Study arms

  • Experimental
    EXPAREL arm

    Subjects randomized to this treatment arm will receive 20 mL (266 mg)EXPAREL mixed with 20 mL saline

    Drug: Exparel

  • Experimental
    EXPAREL admix arm

    subjects randomized to this treatment arm will receive 20 mL (266 mg)EXPAREL admixed with 20 mL (50 mg) 0.25% bupivacaine HCl.

    Drug: Exparel · Drug: Bupivacaine Hydrochloride

  • Active comparator
    Bupivacaine HCl Arm

    subjects randomized to this treatment arm will receive 40 mL (100 mg)0.25% bupivacaine HCl.

    Drug: Bupivacaine Hydrochloride

Interventions

06

What researchers measure

Primary outcomes

  1. Magnitude of the Analgesic Effect (NRS Pain Intensity) (AUC)

    To compare the magnitude of the analgesic effect (NRS pain intensity scores) following a single dose injection of EXPAREL vs. bupivacaine hydrochloride (HCl) when administered as combined sciatic (in the popliteal fossa) and saphenous (in the adductor canal) nerve blocks in subjects undergoing lower extremity surgeries. Numerical Rating Scale: an 11 point scale 0=no pain, 10= the worst pain imaginable. The area under the curve (AUC) of the NRS pain intensity scores from 0 to 96 hours post-surgery comparing EXPAREL to 0.25% bupivacaine HCl

    Time frame: Post surgery - 96 hours

Secondary outcomes

  1. Total Opioid Consumption

    Total Opioid Consumption in oral morphine equivalents

    Time frame: 0 hours to 96 hours

  2. Time to First Opioid

    Time to First Opioid following a single dose of EXPAREL vs. Bupivacain HCl

    Time frame: Post Surgery through Day 14

07

Results

Posted Jul 18, 2022

Participant flow

Participant flow — Overall Study
MilestoneEXPAREL ArmEXPAREL Admix ArmBupivacaine HCl Arm
Started404140
Completed394039
Not completed111
Withdrew: Withdrawal by subject001
Withdrew: Physician decision110

Outcome measures

PrimaryMagnitude of the Analgesic Effect (NRS Pain Intensity) (AUC)

To compare the magnitude of the analgesic effect (NRS pain intensity scores) following a single dose injection of EXPAREL vs. bupivacaine hydrochloride (HCl) when administered as combined sciatic (in the popliteal fossa) and saphenous (in the adductor canal) nerve blocks in subjects undergoing lower extremity surgeries. Numerical Rating Scale: an 11 point scale 0=no pain, 10= the worst pain imaginable. The area under the curve (AUC) of the NRS pain intensity scores from 0 to 96 hours post-surgery comparing EXPAREL to 0.25% bupivacaine HCl

Time frame:
Post surgery - 96 hours
Reported as:
Mean · score on a scale*hours
Magnitude of the Analgesic Effect (NRS Pain Intensity) (AUC)
score on a scale*hoursEXPAREL ArmEXPAREL Admix ArmBupivacaine HCl Arm
Magnitude of the Analgesic Effect (NRS Pain Intensity) (AUC)298.65 ± 173.524358.10 ± 223.610380.05 ± 220.878
SecondaryTotal Opioid Consumption

Total Opioid Consumption in oral morphine equivalents

Time frame:
0 hours to 96 hours
Reported as:
Least squares mean · OMED mg
Total Opioid Consumption
OMED mgEXPAREL ArmEXPAREL Admix ArmBupivacaine HCl Arm
Total Opioid Consumption20.68 (13.51 to 31.65)23.56 (15.54 to 35.73)19.84 (12.72 to 30.96)
SecondaryTime to First Opioid

Time to First Opioid following a single dose of EXPAREL vs. Bupivacain HCl

Time frame:
Post Surgery through Day 14
Reported as:
Mean · hours
Time to First Opioid
hoursEXPAREL ArmEXPAREL Admix ArmBupivacaine HCl Arm
Time to First Opioid5.65 (0.72 to 13.55)11.93 (5.15 to 16.28)16.67 (7.53 to 22.33)

Adverse events

Collected over Adverse events (AEs) and SAEs were recorded from the time of informed consent through POD 14.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
EXPAREL Arm0/39 (0%)0/39 (0%)28/39 (71.8%)
EXPAREL Admix Arm0/41 (0%)0/41 (0%)29/41 (70.7%)
Bupivacaine HCl Arm0/39 (0%)0/39 (0%)31/39 (79.5%)
Most frequent other events
Showing 10 of 15
Most frequent other events
EventEXPAREL ArmEXPAREL Admix ArmBupivacaine HCl Arm
NauseaGastrointestinal disorders8/3912/417/39
ConstipationGastrointestinal disorders9/3911/4111/39
ParaesthesiaNervous system disorders5/393/4111/39
HeadacheNervous system disorders10/394/417/39
HypoaesthesiaNervous system disorders8/399/410/39
VomitingGastrointestinal disorders1/396/412/39
DizzinessNervous system disorders3/392/412/39
PruritisSkin and subcutaneous tissue disorders3/391/411/39
PyrexiaGeneral disorders2/390/411/39
Blood Pressure IncreasedInvestigations2/392/411/39

Baseline characteristics

Age, Customized
Age, Customized(Participants)EXPAREL ArmEXPAREL Admix ArmBupivacaine HCl ArmTotal
<45 years11141843
>/=45 years28262276
Sex: Female, Male
Sex: Female, Male(Participants)EXPAREL ArmEXPAREL Admix ArmBupivacaine HCl ArmTotal
Female35362798
Male441321
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)EXPAREL ArmEXPAREL Admix ArmBupivacaine HCl ArmTotal
Hispanic or Latino10121537
Not Hispanic or Latino28262579
Unknown or Not Reported1203
Race (NIH/OMB)
Race (NIH/OMB)(Participants)EXPAREL ArmEXPAREL Admix ArmBupivacaine HCl ArmTotal
American Indian or Alaska Native0101
Asian1034
Native Hawaiian or Other Pacific Islander0000
Black or African American511723
White32263088
More than one race0101
Unknown or Not Reported1102
American Society of Anesthesiologists (ASA) Classification
American Society of Anesthesiologists (ASA) Classification(Participants)EXPAREL ArmEXPAREL Admix ArmBupivacaine HCl ArmTotal
ASA 115122350
ASA 224261767
ASA 30202
ASA >/= 40000
Height
Height(participants)EXPAREL ArmEXPAREL Admix ArmBupivacaine HCl ArmTotal
<165 cm20212061
>/= 165 cm19192058
Weight
Weight(kg)EXPAREL ArmEXPAREL Admix ArmBupivacaine HCl ArmTotal
Mean77.05 (43.5 to 120.2)83.03 (49.8 to 117.3)77.34 (52.9 to 136.6)79.16 (43.5 to 136.6)
Body Mass Index (BMI) kg/m2
Body Mass Index (BMI) kg/m2(participants)EXPAREL ArmEXPAREL Admix ArmBupivacaine HCl ArmTotal
<25 kg/m21091029
25- <30kg/m215101944
>/= 30 kg/m214211146

2 further baseline measures are reported on the registry.

08

Study locations

5 sites
  • Arizona Research Center
    Phoenix, Arizona 85053, United States
  • Lotus Clinical Research
    Pasadena, California 91105, United States
  • Massachusetts General Hospital
    Boston, Massachusetts 02114, United States
  • Brigham and Women's Hospital
    Chestnut Hill, Massachusetts 02467, United States
  • HD Research, Corp
    Bellaire, Texas 77401, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Oct 2020 to primary completion in Apr 2021, 5 months.

Results were first posted in Jul 2022, 1 year 3 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 4, 2020
First posted
Aug 19, 2020
StartActual
Oct 20, 2020
Primary completionActual
Apr 5, 2021
CompletionActual
Apr 5, 2021
Results first posted
Jul 18, 2022
Last update
Jul 18, 2022
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 18, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04518462
Responsible party
Sponsor
First posted
Aug 19, 2020
Start date
Oct 20, 2020
Primary completion
Apr 5, 2021
Completion
Apr 5, 2021
Results posted
Jul 18, 2022
Last update
Jul 18, 2022

Oversight

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

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This study is completed, as verified in Jul 2022. You cannot join it, but the record below documents what was studied.

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Studies of the drugs tested here: Liposomal Bupivacaine · Bupivacaine

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