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Efficacy of Lidocaine Patch in Acute Musculoskeletal Pain in the Emergency Department

Efficacy of Lidocaine Patch in Acute Musculoskeletal Pain in the Emergency Department: A Prospective Randomized Controlled Study

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03571737
Enrollment
23
Registered
2018-06-28
Start date
2018-06-23
Completion date
2021-01-30
Last updated
2024-03-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Musculoskeletal Disease, Acute Pain, Emergencies, Injuries, Sprains, Sprains and Strains, Trauma

Keywords

acute pain, muscle strain, muscle sprain, injury, emergency department

Brief summary

This study evaluates the addition of a lidocaine patch to ibuprofen in the treatment of acute musculoskeletal pains. Half of the participants will get only ibuprofen for their pain, while other half will receive lidocaine patch plus the ibuprofen. After addition of the pain medications, the participants will be followed for their pain scores and return visits.

Detailed description

Ibuprofen and other nonsteroidal antiinflammatory pain medications have been traditionally used for relief of mild to moderate acute musculoskeletal pains. However, if this medication did not work, a different modality for pain control would be added to the original regimen. In recent times, lidocaine patch has been introduced as a separate modality for pain control. This medication is thought to help by selectively inhibiting voltage-gated sodium channels in nociceptors involved in pain response. Given the separate modality, it would be prudent to see whether the addition of lidocaine patch to the ibuprofen would help relieve the pain more so than the antiinflammatory-only regimen.

Interventions

DRUGIbuprofen

Ibuprofen tablet

Lidocaine patch

Sponsors

East Carolina University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Subject's age is greater than or equal to 18 years old * Subject is able to speak English * Subject has chief complaint of musculoskeletal pain lasting less than or equal to 7 days * Subject's area of greatest pain isolated to one body part * Subject does not have prior Emergency Department visits recorded on electronic medical records for the chief complaint

Exclusion criteria

* Subject's age is less than 18 years old * Subject is pregnant or breastfeeding patients * Subject cannot speak English * Subject has multiple traumatic injuries or injury requiring consultation with the trauma service per study facility's guidelines * Subject has cellulitis or infection overlying the injuries * Subject has open wound overlying the injuries * Subject's chief complaint is caused by penetrating injury * Subject has absolute contraindications to study medications, including anaphylaxis to lidocaine or nonsteroidal antiinflammatory drugs, history of active GI bleeding or recent coronary artery bypass graft surgery precluding nonsteroidal antiinflammatory medications, severe hepatic disease (hepatitis, cirrhosis in current chart or prior history or elevation in liver function tests to clinically significant levels in past 6 months), severe kidney disease (Creatinine clearance less than 30 milliliters or history of chronic kidney disease stage 3 or worse), congestive heart failure. * Subject has medication contraindications such as concurrent use of medications listed: Alcuronium, Amphotericin B, Amprenavir, Atracurium, Cimetidine, Edrophonium, Enflurane, Fosphenytoin, Halothane, Nadolol, Oxprenolol, Pentazocine, Propafenone * Subject is on class I antiarrhythmics therapy (including lidocaine, procainamide, disopyramide etc) * Subject has injuries requiring splint/casting where patient may not be able to reach the area of greatest pain to apply and reapply the patch * Subject has prior history of chronic pain in the affected area (defined as greater than or equal to 6 weeks of pain) * Subject has received opioid medication in triage area or within 4 hours of initial treatment * Subject is unable to give pain scores due to mental status * Subject's initial numerical pain scale score of 0 (which would constitute no pain on the scale) * Subject requires opiate medication or muscle relaxants (Flexeril, Valium, Tizanidine, Robaxin etc) during the initial visit to Emergency department at the discretion of the provider. * Subjects who received less than 800 milligram oral dosage of ibuprofen in triage

Design outcomes

Primary

MeasureTime frameDescription
Change in Numerical Pain Rating Scale60 minutesChange in self-reported pain intensity level. Baseline will be prior to intervention, and change will be assessed 60 minutes after intervention. Each item is scored 0-10 (0=No pain, 10= Worst pain possible). Higher number is worse outcome while lower number is better outcome.

Secondary

MeasureTime frameDescription
Number of Participants With a Return Visit for Same Chief Complaint1 weekQuestionnaire (Yes or No) of whether a return visit to either the emergency department or primary care offices occurred within 1 week for same chief complaint from the initial visit

Countries

United States

Participant flow

Participants by arm

ArmCount
Ibuprofen
Ibuprofen 800mg every 8 hours for 3 days Ibuprofen: Ibuprofen tablet
13
Ibuprofen & Lidocaine Patch 4%
Ibuprofen 800mg every 8 hours for 3 days and Lidocaine patch 4% 1 patch applied for 12 hours then removed for 12 hours, for 3 days Ibuprofen: Ibuprofen tablet Lidocaine Patch 4%: Lidocaine patch
10
Total23

Baseline characteristics

CharacteristicIbuprofenIbuprofen & Lidocaine Patch 4%Total
Age, Continuous35.2 years
STANDARD_DEVIATION 17.3
36.8 years
STANDARD_DEVIATION 13.2
35.8 years
STANDARD_DEVIATION 15.3
Initial Pain Score6.8 units on a scale
STANDARD_DEVIATION 2
6.8 units on a scale
STANDARD_DEVIATION 2.5
6.8 units on a scale
STANDARD_DEVIATION 2.2
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
5 Participants5 Participants10 Participants
Race (NIH/OMB)
More than one race
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants0 Participants2 Participants
Race (NIH/OMB)
White
5 Participants5 Participants10 Participants
Region of Enrollment
United States
13 participants10 participants23 participants
Sex: Female, Male
Female
4 Participants3 Participants7 Participants
Sex: Female, Male
Male
9 Participants7 Participants16 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 130 / 10
other
Total, other adverse events
0 / 130 / 10
serious
Total, serious adverse events
0 / 130 / 10

Outcome results

Primary

Change in Numerical Pain Rating Scale

Change in self-reported pain intensity level. Baseline will be prior to intervention, and change will be assessed 60 minutes after intervention. Each item is scored 0-10 (0=No pain, 10= Worst pain possible). Higher number is worse outcome while lower number is better outcome.

Time frame: 60 minutes

ArmMeasureValue (MEAN)
Ibuprofen- ControlChange in Numerical Pain Rating Scale2.9 score on a scale
Ibuprofen & Lidocaine Patch 4%- ExperimentalChange in Numerical Pain Rating Scale2.1 score on a scale
Secondary

Number of Participants With a Return Visit for Same Chief Complaint

Questionnaire (Yes or No) of whether a return visit to either the emergency department or primary care offices occurred within 1 week for same chief complaint from the initial visit

Time frame: 1 week

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ibuprofen- ControlNumber of Participants With a Return Visit for Same Chief Complaint11 Participants
Ibuprofen & Lidocaine Patch 4%- ExperimentalNumber of Participants With a Return Visit for Same Chief Complaint10 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026