Skip to content

Efficacy of Injected Local Anesthetic vs Topical Anesthetic in Cosmetic Injectable Fillers.

Efficacy of Injected Local Anesthetic vs Topical Anesthetic in Cosmetic Injectable Fillers

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02379221
Enrollment
49
Registered
2015-03-04
Start date
2014-09-30
Completion date
2016-04-30
Last updated
2020-04-29

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

Conditions

Anesthesia

Brief summary

The purpose of the study is to compare two modalities of local anesthetic administration prior to the placement of cosmetic facial injectable fillers. Both short and long term pain perceptions for the facial filler procedure will be compared in patients receiving 4% Topicaine gel on half their face, and 20% benzocaine gel prior to 2% lidocaine 1:100k epinephrine nerve block injections on the other half of their face. The objective is to quantify the subjective pain experienced by these two modalities of local anesthetic during the procedure of Juvederm XC filler injections.

Detailed description

The purpose of this study is to determine if local anesthesia injections will provide more profound analgesia than topical anesthesia during facial cosmetic filler injections. The study is a single group study design. The attending surgeon or residents will perform the procedure. Each procedure will start with a randomized coin flip to determine which side of the face will be anesthetized with local anesthesia or topical anesthesia. The head side of the coin will coincide with local anesthesia on the patient's right side. The tail of the coin will designate the patient's left side for local anesthetic injections. To evaluate whether the additional anesthesia of a nerve block brings more pain relief than the initial pain of receiving a nerve block, the pain value will be collected from each nerve block administered. Procedural injection pain data will be collected from the nerve blocked facial half and from the topical anesthetic facial half to provide a comparison of anesthesia during the procedure. The primary outcome will be the collection of overall pain data from each side of the face 5-10 minutes after the procedure. Facial anesthesia preference data will also be collected at one week post treatment to determine overall pain perceptions from each method of facial anesthesia.

Interventions

DRUGInjectable

20% benzocaine gel, 2% lidocaine, 1:100k epinephrine nerve block injection

4% Topicaine gel

Sponsors

David Grant U.S. Air Force Medical Center
Lead SponsorFED

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Age ≥ 18 * Patients with deepened labiomental folds or decreased lip volume and architecture who are scheduled to receive Juvederm XC injections in DGMC Oral & Maxillofacial Surgery clinic.

Exclusion criteria

* Pregnant or nursing * History of any type of neuralgia or paresthesia, or paresis * Allergy or contraindication to lidocaine or hyaluronic acid * Use of hyaluronic acid in last 6 months * Previous reaction to Juvederm or other hyaluronic acid based fillers * Have an active inflammatory or infectious process at the injection site. * Use of monoamine oxidase (MAO) inhibitors or tricyclic antidepressants * Severe coronary artery disease * Diagnosis of any cardiac dysrhythmia with an ECG finding other than normal sinus rhythm

Design outcomes

Primary

MeasureTime frameDescription
Participants Anesthetic Preferenceone week post treatmentPatient will complete a questionnaire to evaluate his/her preference of anesthetic modality.

Secondary

MeasureTime frameDescription
Mean Pain Level Associated With the Local Anesthetic Injection5-10 minutes post-procedureParticipant will complete a questionnaire to evaluate his/her pain level perception using a Visual Analog Scale (VAS) during injection to the upper and lower lip. The Visual Analog scale uses a 10 cm horizontal line with 'no pain' labeled on the left end of line and 'worst pain' on the right end of line. Participant marks their pain level at any point on the line from no pain to worst pain. No pain= 0 cm, Worst pain=10cm
Mean Pain Level Associated With the Local Topical Anesthetic5-10 min post procedureParticipant will complete a questionnaire to evaluate his/her pain level perception using a Visual Analog Scale (VAS) during application of topical anesthesia to the upper and lower lip. The Visual Analog scale uses a 10 cm horizontal line with 'no pain' labeled on the left end of line and 'worst pain' on the right end of line. Participant marks their pain level at any point on the line from no pain to worst pain. No pain= 0 cm, Worst pain=10cm
Mean Pain Level Associated With Facial Filler Injection at the Upper Lip5-10 minutes post procedureParticipant will complete a questionnaire to evaluate his/her pain level perception using a Visual Analog Scale (VAS) during injection of HA filler to the upper lip. The Visual Analog scale uses a 10 cm horizontal line with 'no pain' labeled on the left end of line and 'worst pain' on the right end of line. Participant marks their pain level at any point on the line from no pain to worst pain. No pain= 0 cm, Worst pain=10cm
Mean Pain Level Associated With Facial Filler Injection to the Lower Lip5-10 minutes post procedureA mean level of pain for all participants completing the Visual Analog Scale (VAS) during injection of HA filler to the lower lip. The Visual Analog scale uses a 10 cm horizontal line with 'no pain' labeled on the left end of line and 'worst pain' on the right end of line. Participant marks their pain level at any point on the line from no pain to worst pain. No pain= 0 cm, Worst pain=10cm. The total score was divided by 48.
Mean Pain Level Associated With Facial Filler Injection to the Nasolabial Fold5-10 minutes post procedureParticipant will complete a questionnaire to evaluate his/her pain level perception using a Visual Analog Scale (VAS) during injection of HA filler to the nasolabial fold. The Visual Analog scale uses a 10 cm horizontal line with 'no pain' labeled on the left end of line and 'worst pain' on the right end of line. Participant marks their pain level at any point on the line from no pain to worst pain. No pain= 0 cm, Worst pain=10cm

Countries

United States

Participant flow

Participants by arm

ArmCount
Injectable / Topical
Half of the face is injected with local anesthesia, the other half is treated with topical anesthesia by randomized method. Injectable: 20% benzocaine, 2% lidocaine 1:100k epinephrine nerve block injection Topical: 4% Topicaine gel
48
Total48

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyLost to Follow-up1

Baseline characteristics

CharacteristicInjectable / Topical
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
48 Participants
Age, Continuous53 years
Region of Enrollment
United States
48 participants
Sex: Female, Male
Female
46 Participants
Sex: Female, Male
Male
2 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
1 / 49
serious
Total, serious adverse events
0 / 49

Outcome results

Primary

Participants Anesthetic Preference

Patient will complete a questionnaire to evaluate his/her preference of anesthetic modality.

Time frame: one week post treatment

ArmMeasureValue (NUMBER)
InjectableParticipants Anesthetic Preference32 participant preference selection
TopicalParticipants Anesthetic Preference16 participant preference selection
Secondary

Mean Pain Level Associated With Facial Filler Injection at the Upper Lip

Participant will complete a questionnaire to evaluate his/her pain level perception using a Visual Analog Scale (VAS) during injection of HA filler to the upper lip. The Visual Analog scale uses a 10 cm horizontal line with 'no pain' labeled on the left end of line and 'worst pain' on the right end of line. Participant marks their pain level at any point on the line from no pain to worst pain. No pain= 0 cm, Worst pain=10cm

Time frame: 5-10 minutes post procedure

ArmMeasureValue (MEAN)Dispersion
InjectableMean Pain Level Associated With Facial Filler Injection at the Upper Lip0.89 units on a scaleStandard Deviation 1.6
TopicalMean Pain Level Associated With Facial Filler Injection at the Upper Lip3.67 units on a scaleStandard Deviation 2.87
Secondary

Mean Pain Level Associated With Facial Filler Injection to the Lower Lip

A mean level of pain for all participants completing the Visual Analog Scale (VAS) during injection of HA filler to the lower lip. The Visual Analog scale uses a 10 cm horizontal line with 'no pain' labeled on the left end of line and 'worst pain' on the right end of line. Participant marks their pain level at any point on the line from no pain to worst pain. No pain= 0 cm, Worst pain=10cm. The total score was divided by 48.

Time frame: 5-10 minutes post procedure

ArmMeasureValue (MEAN)Dispersion
InjectableMean Pain Level Associated With Facial Filler Injection to the Lower Lip1.47 units on a scaleStandard Deviation 2.41
TopicalMean Pain Level Associated With Facial Filler Injection to the Lower Lip4.38 units on a scaleStandard Deviation 2.95
Secondary

Mean Pain Level Associated With Facial Filler Injection to the Nasolabial Fold

Participant will complete a questionnaire to evaluate his/her pain level perception using a Visual Analog Scale (VAS) during injection of HA filler to the nasolabial fold. The Visual Analog scale uses a 10 cm horizontal line with 'no pain' labeled on the left end of line and 'worst pain' on the right end of line. Participant marks their pain level at any point on the line from no pain to worst pain. No pain= 0 cm, Worst pain=10cm

Time frame: 5-10 minutes post procedure

ArmMeasureValue (MEAN)Dispersion
InjectableMean Pain Level Associated With Facial Filler Injection to the Nasolabial Fold0.76 units on a scaleStandard Deviation 1.49
TopicalMean Pain Level Associated With Facial Filler Injection to the Nasolabial Fold2.82 units on a scaleStandard Deviation 2.54
Secondary

Mean Pain Level Associated With the Local Anesthetic Injection

Participant will complete a questionnaire to evaluate his/her pain level perception using a Visual Analog Scale (VAS) during injection to the upper and lower lip. The Visual Analog scale uses a 10 cm horizontal line with 'no pain' labeled on the left end of line and 'worst pain' on the right end of line. Participant marks their pain level at any point on the line from no pain to worst pain. No pain= 0 cm, Worst pain=10cm

Time frame: 5-10 minutes post-procedure

ArmMeasureValue (MEAN)Dispersion
InjectableMean Pain Level Associated With the Local Anesthetic Injection2.14 unit on a scaleStandard Deviation 2.35
TopicalMean Pain Level Associated With the Local Anesthetic Injection1.89 unit on a scaleStandard Deviation 2.04
Secondary

Mean Pain Level Associated With the Local Topical Anesthetic

Participant will complete a questionnaire to evaluate his/her pain level perception using a Visual Analog Scale (VAS) during application of topical anesthesia to the upper and lower lip. The Visual Analog scale uses a 10 cm horizontal line with 'no pain' labeled on the left end of line and 'worst pain' on the right end of line. Participant marks their pain level at any point on the line from no pain to worst pain. No pain= 0 cm, Worst pain=10cm

Time frame: 5-10 min post procedure

ArmMeasureValue (MEAN)Dispersion
InjectableMean Pain Level Associated With the Local Topical Anesthetic0.05 units on a scaleStandard Deviation 0.21
TopicalMean Pain Level Associated With the Local Topical Anesthetic0.11 units on a scaleStandard Deviation 0.32

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