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RHA® 4 With New Anesthetic - Nasolabial Folds

A Randomized, Controlled, Double-blinded, Within-subject (Split-face), Multicenter, Prospective Clinical Study to Compare the Level of Pain Using the Dermal Filler RHA® 4 Formulated With Two Different Anesthetics in the Treatment of Nasolabial Folds

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04087395
Enrollment
30
Registered
2019-09-12
Start date
2019-10-30
Completion date
2020-11-09
Last updated
2022-01-24

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

Conditions

Aging, Pain

Keywords

Hyaluronic Acid, Anesthetic, Lidocaine, Nasolabial Folds

Brief summary

This is a randomized, controlled, double-blinded, within-subject (split-face), multicenter, prospective study to investigate whether RHA® 4 with New Anesthetic Agent is non-inferior to RHA® 4 (with lidocaine) in terms of injection site pain felt by the subject during injection. At screening, the Treating Investigator (TI) evaluated subjects' NLF severity (using the Wrinkle Severity Rating Scale; WSRS) to confirm eligibility and to establish a pre-treatment score for assessing aesthetic improvement. At Visit 1, RHA® 4 With New Anesthetic Agent was administered in a random sequence (first or second injection) and side of the face (left or right) and RHA® 4 with lidocaine was administered to the other side. Study subjects and the TI injecting study devices were blinded. Immediately after injection of each side, subjects rated injection site pain experienced during injection using a 100 mm Visual Analog Scale (VAS). Injection site pain in each side of the face was also assessed at 15, 30, 45 and 60 minutes post-injection. Safety evaluation consisted of AE assessments, a 30-day CTR (Common Treatment Response) diary and a follow-up call performed by the study site at 72 hours after injection. Subjects attended Visit 2 (30 days post-injection) where efficacy and safety assessments will be conducted. Subjects who present with an unresolved clinically significant device related AE at Visit 2 received the optional follow-up phone call no later than 30 days after Visit 2. If the clinically significant AE remained unresolved, the Investigator requested that the subject attended the optional in-clinic follow-up visit (i.e., Visit 3) within 5 working days. Follow-up of the clinically significant AE continued until the AE was resolved or the TI determines that additional follow-up was not necessary.

Interventions

DEVICERHA®4 with new anesthetic agent

A sterile, biodegradable, biocompatible, viscoelastic, clear, colorless, homogenized gel implant. It consists of cross-linked hyaluronic acid produced by fermentation of Streptococcus zooepidemicus, formulated to a concentration of 23 mg/g and 0.3% w/w of new anesthetic agent in a physiologic buffer.

DEVICERHA®4-Lidocaine

A sterile, biodegradable, biocompatible, viscoelastic, clear, colorless, homogenized gel implant. It consists of cross-linked hyaluronic acid produced by fermentation of Streptococcus zooepidemicus, formulated to a concentration of 23 mg/g and 0.3% w/w lidocaine in a physiologic buffer.

Sponsors

Teoxane SA
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Intervention model description

Split-face design

Eligibility

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

Inclusion criteria

1. Outpatient, male or female of any race, 22 years of age or older. Female subjects of childbearing potential must have a negative UPT at Visit 1 and practice a reliable method of contraception throughout the study. 2. Moderate to severe bilateral nasolabial folds (grade 3 or 4 on the five-point WSRS). 3. Nasolabial folds of the same WSRS grade on the left and right sides of the face. 4. Able to follow study instructions and complete all required visits. 5. Sign the IRB-approved ICF, Photographic Release Form, the Authorization for Use and release of Health and Research Study Information (HIPAA) form, and if applicable the California Experimental Research Subject's Bill of Rights prior to any study-related procedures being performed.

Exclusion criteria

1. Female subjects who are pregnant, breast-feeding, or of childbearing potential and not practicing reliable birth control. 2. Known hypersensitivity or previous allergic reaction to any component of the study devices. 3. Use of a prohibited treatment/procedure within time periods defined in the protocol 4. Known sensitivity to local anesthetics of the amide type, history of multiple severe allergies, or history of anaphylactic shock. 5. History of active chronic debilitating systemic disease that, in the opinion of the investigator, would make the subject a poor candidate in the study. 6. History of connective tissue disease. 7. Malignancy (excluding non-melanoma skin cancer) within the past 5 years. 8. History of skin cancer in the treatment area. 9. Clinically active disease or infection in the NLF area. 10. Medical or psychiatric conditions that may increase the risk associated with study participation or may interfere with the interpretation of study results or compliance of the subject and, in the judgment of the Investigator, would make the subject inappropriate for entry into this study. 11. Clinically significant alcohol or drug abuse, or history of poor cooperation or unreliability. 12. Exposure to any other investigational drug/device within 90 days of entering the study.

Design outcomes

Primary

MeasureTime frameDescription
Non-inferiority of RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Terms of Reducing Pain During Device Injection Into Nasolabial Folds.Visit 1 - During InjectionInjection pain during injection will be based on the 100 mm Visual Analog Scale (VAS), as assessed by subjects immediately after injection of each nasolabial fold. VAS is a 100 mm Visual Analog Scale with 0 meaning no pain and 100 meaning intolerable pain.

Secondary

MeasureTime frameDescription
Change in NLF WSRS Score Between Baseline and Day 30 as Assessed by the Treating InvestigatorVisit 1 - Baseline (pre-injection), Visit 1 (post-injection), Visit 2 (Day 30)NLF-WSRS (Nasolabial Folds- Wrinkle Severity Rating Scale) is a validated 5-grade scale with 1 being Absent and 5 being Extreme
Percentage of Responders Based on the Intra-individual Improvement of at Least One Grade on the Nasolabial Folds Wrinkle Severity Rating Scale (NLF-WSRS) Compared to Baseline, as Assessed by the TIVisit 1 (Baseline, pre-injection), Visit 1 (post-injection), Visit 2 (Day 30)A responder corresponds to a subject with an intra-individual improvement of at least one grade on the NLF WSRS compared to Baseline, as assessed by the TI
Subject's Perception of Treatment Effectiveness as Per the FACE-Q (Nasolabial Folds Domain) Questionnaire. The FACE-Q Measures the Experience and Outcomes of Aesthetic Facial Procedures From the Patient's Perspective.Visit 1 (Baseline) and Visit 2 (Day 30)FACE-Q questionnaire is composed of 5 questions with a score linked to answers (1 being 'Not at all' and 4 being 'Extremely'). The subject will be instructed as follows: These questions ask about how you look right now. For each question, circle only one answer. With your nasolabial folds in mind (the deep lines that run downward from the sides of your nose), in the past week, how much have you been bothered by:, and will provide response. To calculate the FACE-Q, outcomes from all 5 questions were pooled, data were transformed so that higher scores reflected a superior outcome, and adapted to a scale of 100 units (i.e. lowest score = 0, highest score = 100).
Difference Between RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Term of Reducing Pain at 15, 30, 45 and 60 Minutes Post-injection in Nasolabial Folds of Each Side of the Face.Visit 1 - 15, 30, 45 and 60 minutes post-injectionInjection pain was measured on the 100 mm Visual Analog Scale (VAS), as assessed by subjects in nasolabial fold of each side of the face. VAS is a 100 mm Visual Analog Scale with 0 meaning no pain and 100 meaning intolerable pain
Number of Global Aesthetic Improvement (GAI) Responders (i.e., Scoring Either Much Improved or Improved) on GAI Scale According to Subject's Self-assessmentVisit 1 (just after receiving treatment) and Visit 2 (Day 30)Global Aesthetic Improvement (GAI) is a subjective 5-grade scale comprised of much improved, improved, no change, worse, and much worse. GAI was assessed using the baseline photograph. Subjects were instructed: Use a mirror to compare your face to the photograph provided to you and rate the degree of aesthetic improvement by using the following scale. Each side of the face was assessed independently.
Number of Subjects Satisfied or Very Satisfied With Study Treatment Using the Subject's Satisfaction ScaleVisit 1 (just after receiving treatment) and Visit 2 (Day 30)The Subject Satisfaction Scale is a subjective, balanced, 5-point scale assessing subject satisfaction with study treatment. Possible scores range from with 1 (very satisfied) to 5 (very dissatisfied). Proportion of subjects who were Satisfied (i.e., 1-Very Satisfied + 2-Satisfied) was compared to the proportion of subjects who were Not Satisfied (i.e., 3-Neither Satisfied nor dissatisfied + 4-Dissatisfied + 5-Very Dissatisfied)
Number of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineDuring 30 days after injectionThe subjects received a diary booklet and instructions for recording their observations of the Common Treatment Responses to the study treatments during 30 days following the injection. The diary were discussed during follow-up phone call and visit. Subjects were instructed to complete the diary at approximately the same time each day (i.e., am or pm). The subject diary captured the following Common Treatment Responses (CTR) that occur following the injection of a dermal filler; specifically, redness, pain, tenderness, firmness, swelling, lumps/bumps, bruising, itching, discoloration, and other. The 30-day patient CTR diary included a detailed glossary describing all signs/symptoms listed in the diary; an option was provided to rate other if the subject experienced a sign/symptom that is not listed.
Number of Subjects Scored Either Much Improved or Improved on Global Aesthetic Improvement (GAI) by the Treating Investigator (TI)Visit 1 (just after receiving treatment) and Visit 2 (Day 30)Global Aesthetic Improvement (GAI) is a subjective 5-grade scale comprised of much improved, improved, no change, worse, and much worse. GAI was assessed using the baseline photograph. Each side of the face will be assessed independently.

Countries

United States

Participant flow

Participants by arm

ArmCount
Split-face Study : Bilateral Treatment With RHA®4 With New Anesthetic Agent Vs RHA®4-Lidocaine
Split-face injection of RHA®4 with new anesthetic agent in the nasolabial folds on one side of the face and RHA®4-Lidocaine in the perioral rhytids on the opposite side of the face
30
Total30

Baseline characteristics

CharacteristicSplit-face Study : Bilateral Treatment With RHA®4 With New Anesthetic Agent Vs RHA®4-Lidocaine
Age, Continuous57.0 years
STANDARD_DEVIATION 9.7
Ethnicity (NIH/OMB)
Hispanic or Latino
12 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
18 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Fitzpatrick Skin Type
Types I to III (as assessed by TI at screening)
19 Participants
Fitzpatrick Skin Type
Types IV to VI (as assessed by TI at screening)
11 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
3 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
27 Participants
Sex: Female, Male
Female
27 Participants
Sex: Female, Male
Male
3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 300 / 30
other
Total, other adverse events
5 / 304 / 30
serious
Total, serious adverse events
0 / 300 / 30

Outcome results

Primary

Non-inferiority of RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Terms of Reducing Pain During Device Injection Into Nasolabial Folds.

Injection pain during injection will be based on the 100 mm Visual Analog Scale (VAS), as assessed by subjects immediately after injection of each nasolabial fold. VAS is a 100 mm Visual Analog Scale with 0 meaning no pain and 100 meaning intolerable pain.

Time frame: Visit 1 - During Injection

ArmMeasureValue (MEAN)Dispersion
RHA®4 With New Anesthetic AgentNon-inferiority of RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Terms of Reducing Pain During Device Injection Into Nasolabial Folds.17.1 mmStandard Deviation 18.38
RHA®4-LidocaineNon-inferiority of RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Terms of Reducing Pain During Device Injection Into Nasolabial Folds.16.3 mmStandard Deviation 18.89
p-value: <0.0001t-test, 1 sided
Secondary

Change in NLF WSRS Score Between Baseline and Day 30 as Assessed by the Treating Investigator

NLF-WSRS (Nasolabial Folds- Wrinkle Severity Rating Scale) is a validated 5-grade scale with 1 being Absent and 5 being Extreme

Time frame: Visit 1 - Baseline (pre-injection), Visit 1 (post-injection), Visit 2 (Day 30)

ArmMeasureGroupValue (MEAN)Dispersion
RHA®4 With New Anesthetic AgentChange in NLF WSRS Score Between Baseline and Day 30 as Assessed by the Treating InvestigatorVisit 2 (Day 30)-1.9 units on a scaleStandard Deviation 0.48
RHA®4 With New Anesthetic AgentChange in NLF WSRS Score Between Baseline and Day 30 as Assessed by the Treating InvestigatorVisit 1 (post-injection)-1.8 units on a scaleStandard Deviation 0.57
RHA®4-LidocaineChange in NLF WSRS Score Between Baseline and Day 30 as Assessed by the Treating InvestigatorVisit 1 (post-injection)-1.8 units on a scaleStandard Deviation 0.57
RHA®4-LidocaineChange in NLF WSRS Score Between Baseline and Day 30 as Assessed by the Treating InvestigatorVisit 2 (Day 30)-1.8 units on a scaleStandard Deviation 0.63
Secondary

Difference Between RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Term of Reducing Pain at 15, 30, 45 and 60 Minutes Post-injection in Nasolabial Folds of Each Side of the Face.

Injection pain was measured on the 100 mm Visual Analog Scale (VAS), as assessed by subjects in nasolabial fold of each side of the face. VAS is a 100 mm Visual Analog Scale with 0 meaning no pain and 100 meaning intolerable pain

Time frame: Visit 1 - 15, 30, 45 and 60 minutes post-injection

ArmMeasureGroupValue (MEAN)Dispersion
RHA®4 With New Anesthetic AgentDifference Between RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Term of Reducing Pain at 15, 30, 45 and 60 Minutes Post-injection in Nasolabial Folds of Each Side of the Face.15 Min4.9 mmStandard Deviation 12.33
RHA®4 With New Anesthetic AgentDifference Between RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Term of Reducing Pain at 15, 30, 45 and 60 Minutes Post-injection in Nasolabial Folds of Each Side of the Face.30 Min2.0 mmStandard Deviation 5.66
RHA®4 With New Anesthetic AgentDifference Between RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Term of Reducing Pain at 15, 30, 45 and 60 Minutes Post-injection in Nasolabial Folds of Each Side of the Face.45 Min0.0 mmStandard Deviation 0
RHA®4 With New Anesthetic AgentDifference Between RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Term of Reducing Pain at 15, 30, 45 and 60 Minutes Post-injection in Nasolabial Folds of Each Side of the Face.60 Min0.0 mmStandard Deviation 0
RHA®4-LidocaineDifference Between RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Term of Reducing Pain at 15, 30, 45 and 60 Minutes Post-injection in Nasolabial Folds of Each Side of the Face.60 Min1.9 mmStandard Deviation 10.22
RHA®4-LidocaineDifference Between RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Term of Reducing Pain at 15, 30, 45 and 60 Minutes Post-injection in Nasolabial Folds of Each Side of the Face.15 Min5.1 mmStandard Deviation 15.94
RHA®4-LidocaineDifference Between RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Term of Reducing Pain at 15, 30, 45 and 60 Minutes Post-injection in Nasolabial Folds of Each Side of the Face.45 Min2.1 mmStandard Deviation 11.68
RHA®4-LidocaineDifference Between RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine in Term of Reducing Pain at 15, 30, 45 and 60 Minutes Post-injection in Nasolabial Folds of Each Side of the Face.30 Min3.1 mmStandard Deviation 12.3
Secondary

Number of Global Aesthetic Improvement (GAI) Responders (i.e., Scoring Either Much Improved or Improved) on GAI Scale According to Subject's Self-assessment

Global Aesthetic Improvement (GAI) is a subjective 5-grade scale comprised of much improved, improved, no change, worse, and much worse. GAI was assessed using the baseline photograph. Subjects were instructed: Use a mirror to compare your face to the photograph provided to you and rate the degree of aesthetic improvement by using the following scale. Each side of the face was assessed independently.

Time frame: Visit 1 (just after receiving treatment) and Visit 2 (Day 30)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RHA®4 With New Anesthetic AgentNumber of Global Aesthetic Improvement (GAI) Responders (i.e., Scoring Either Much Improved or Improved) on GAI Scale According to Subject's Self-assessmentVisit 1 (post-injection)30 Participants
RHA®4 With New Anesthetic AgentNumber of Global Aesthetic Improvement (GAI) Responders (i.e., Scoring Either Much Improved or Improved) on GAI Scale According to Subject's Self-assessmentVisit 2 (Day 30)30 Participants
RHA®4-LidocaineNumber of Global Aesthetic Improvement (GAI) Responders (i.e., Scoring Either Much Improved or Improved) on GAI Scale According to Subject's Self-assessmentVisit 1 (post-injection)30 Participants
RHA®4-LidocaineNumber of Global Aesthetic Improvement (GAI) Responders (i.e., Scoring Either Much Improved or Improved) on GAI Scale According to Subject's Self-assessmentVisit 2 (Day 30)30 Participants
Secondary

Number of Subjects Satisfied or Very Satisfied With Study Treatment Using the Subject's Satisfaction Scale

The Subject Satisfaction Scale is a subjective, balanced, 5-point scale assessing subject satisfaction with study treatment. Possible scores range from with 1 (very satisfied) to 5 (very dissatisfied). Proportion of subjects who were Satisfied (i.e., 1-Very Satisfied + 2-Satisfied) was compared to the proportion of subjects who were Not Satisfied (i.e., 3-Neither Satisfied nor dissatisfied + 4-Dissatisfied + 5-Very Dissatisfied)

Time frame: Visit 1 (just after receiving treatment) and Visit 2 (Day 30)

ArmMeasureGroupValue (NUMBER)
RHA®4 With New Anesthetic AgentNumber of Subjects Satisfied or Very Satisfied With Study Treatment Using the Subject's Satisfaction ScaleVisit 1 (post-injection) : Satisfied30 participants
RHA®4 With New Anesthetic AgentNumber of Subjects Satisfied or Very Satisfied With Study Treatment Using the Subject's Satisfaction ScaleVisit 1 (post-inj): Not Satisfied0 participants
RHA®4 With New Anesthetic AgentNumber of Subjects Satisfied or Very Satisfied With Study Treatment Using the Subject's Satisfaction ScaleVisit 2 (Day 30) : Satisfied (i.e., 1-Very Satisfied + 2-Satisfied)29 participants
RHA®4 With New Anesthetic AgentNumber of Subjects Satisfied or Very Satisfied With Study Treatment Using the Subject's Satisfaction ScaleVisit 2 (Day 30) : Not Satisfied1 participants
RHA®4-LidocaineNumber of Subjects Satisfied or Very Satisfied With Study Treatment Using the Subject's Satisfaction ScaleVisit 2 (Day 30) : Not Satisfied1 participants
RHA®4-LidocaineNumber of Subjects Satisfied or Very Satisfied With Study Treatment Using the Subject's Satisfaction ScaleVisit 1 (post-injection) : Satisfied30 participants
RHA®4-LidocaineNumber of Subjects Satisfied or Very Satisfied With Study Treatment Using the Subject's Satisfaction ScaleVisit 2 (Day 30) : Satisfied (i.e., 1-Very Satisfied + 2-Satisfied)29 participants
RHA®4-LidocaineNumber of Subjects Satisfied or Very Satisfied With Study Treatment Using the Subject's Satisfaction ScaleVisit 1 (post-inj): Not Satisfied0 participants
Secondary

Number of Subjects Scored Either Much Improved or Improved on Global Aesthetic Improvement (GAI) by the Treating Investigator (TI)

Global Aesthetic Improvement (GAI) is a subjective 5-grade scale comprised of much improved, improved, no change, worse, and much worse. GAI was assessed using the baseline photograph. Each side of the face will be assessed independently.

Time frame: Visit 1 (just after receiving treatment) and Visit 2 (Day 30)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RHA®4 With New Anesthetic AgentNumber of Subjects Scored Either Much Improved or Improved on Global Aesthetic Improvement (GAI) by the Treating Investigator (TI)Visit 1 (post-injection)30 Participants
RHA®4 With New Anesthetic AgentNumber of Subjects Scored Either Much Improved or Improved on Global Aesthetic Improvement (GAI) by the Treating Investigator (TI)Visit 2 (Day 30)30 Participants
RHA®4-LidocaineNumber of Subjects Scored Either Much Improved or Improved on Global Aesthetic Improvement (GAI) by the Treating Investigator (TI)Visit 1 (post-injection)30 Participants
RHA®4-LidocaineNumber of Subjects Scored Either Much Improved or Improved on Global Aesthetic Improvement (GAI) by the Treating Investigator (TI)Visit 2 (Day 30)29 Participants
Secondary

Number of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-Lidocaine

The subjects received a diary booklet and instructions for recording their observations of the Common Treatment Responses to the study treatments during 30 days following the injection. The diary were discussed during follow-up phone call and visit. Subjects were instructed to complete the diary at approximately the same time each day (i.e., am or pm). The subject diary captured the following Common Treatment Responses (CTR) that occur following the injection of a dermal filler; specifically, redness, pain, tenderness, firmness, swelling, lumps/bumps, bruising, itching, discoloration, and other. The 30-day patient CTR diary included a detailed glossary describing all signs/symptoms listed in the diary; an option was provided to rate other if the subject experienced a sign/symptom that is not listed.

Time frame: During 30 days after injection

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
RHA®4 With New Anesthetic AgentNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineBruising19 Participants
RHA®4 With New Anesthetic AgentNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineDiscoloration11 Participants
RHA®4 With New Anesthetic AgentNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineFirmness24 Participants
RHA®4 With New Anesthetic AgentNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineItching7 Participants
RHA®4 With New Anesthetic AgentNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineLumps/Bumps22 Participants
RHA®4 With New Anesthetic AgentNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocainePain12 Participants
RHA®4 With New Anesthetic AgentNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineRedness21 Participants
RHA®4 With New Anesthetic AgentNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineSwelling21 Participants
RHA®4 With New Anesthetic AgentNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineTenderness24 Participants
RHA®4 With New Anesthetic AgentNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineParesthesia1 Participants
RHA®4-LidocaineNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineSwelling23 Participants
RHA®4-LidocaineNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineBruising21 Participants
RHA®4-LidocaineNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocainePain9 Participants
RHA®4-LidocaineNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineDiscoloration12 Participants
RHA®4-LidocaineNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineParesthesia0 Participants
RHA®4-LidocaineNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineFirmness22 Participants
RHA®4-LidocaineNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineRedness20 Participants
RHA®4-LidocaineNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineItching6 Participants
RHA®4-LidocaineNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineTenderness24 Participants
RHA®4-LidocaineNumber of Subjects With Post Injection Treatment Responses (From Common Treatment Responses (CTR) Diary) for Safety Evaluation of RHA® 4 With New Anesthetic Agent Versus RHA® 4-LidocaineLumps/Bumps21 Participants
Secondary

Percentage of Responders Based on the Intra-individual Improvement of at Least One Grade on the Nasolabial Folds Wrinkle Severity Rating Scale (NLF-WSRS) Compared to Baseline, as Assessed by the TI

A responder corresponds to a subject with an intra-individual improvement of at least one grade on the NLF WSRS compared to Baseline, as assessed by the TI

Time frame: Visit 1 (Baseline, pre-injection), Visit 1 (post-injection), Visit 2 (Day 30)

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
RHA®4 With New Anesthetic AgentPercentage of Responders Based on the Intra-individual Improvement of at Least One Grade on the Nasolabial Folds Wrinkle Severity Rating Scale (NLF-WSRS) Compared to Baseline, as Assessed by the TIVisit 1 (post-injection)Responder30 Participants
RHA®4 With New Anesthetic AgentPercentage of Responders Based on the Intra-individual Improvement of at Least One Grade on the Nasolabial Folds Wrinkle Severity Rating Scale (NLF-WSRS) Compared to Baseline, as Assessed by the TIVisit 1 (post-injection)Not Responder0 Participants
RHA®4 With New Anesthetic AgentPercentage of Responders Based on the Intra-individual Improvement of at Least One Grade on the Nasolabial Folds Wrinkle Severity Rating Scale (NLF-WSRS) Compared to Baseline, as Assessed by the TIVisit 2 (Day 30)Responder30 Participants
RHA®4 With New Anesthetic AgentPercentage of Responders Based on the Intra-individual Improvement of at Least One Grade on the Nasolabial Folds Wrinkle Severity Rating Scale (NLF-WSRS) Compared to Baseline, as Assessed by the TIVisit 2 (Day 30)Not Responder0 Participants
RHA®4-LidocainePercentage of Responders Based on the Intra-individual Improvement of at Least One Grade on the Nasolabial Folds Wrinkle Severity Rating Scale (NLF-WSRS) Compared to Baseline, as Assessed by the TIVisit 2 (Day 30)Not Responder1 Participants
RHA®4-LidocainePercentage of Responders Based on the Intra-individual Improvement of at Least One Grade on the Nasolabial Folds Wrinkle Severity Rating Scale (NLF-WSRS) Compared to Baseline, as Assessed by the TIVisit 1 (post-injection)Responder30 Participants
RHA®4-LidocainePercentage of Responders Based on the Intra-individual Improvement of at Least One Grade on the Nasolabial Folds Wrinkle Severity Rating Scale (NLF-WSRS) Compared to Baseline, as Assessed by the TIVisit 2 (Day 30)Responder29 Participants
RHA®4-LidocainePercentage of Responders Based on the Intra-individual Improvement of at Least One Grade on the Nasolabial Folds Wrinkle Severity Rating Scale (NLF-WSRS) Compared to Baseline, as Assessed by the TIVisit 1 (post-injection)Not Responder0 Participants
Secondary

Subject's Perception of Treatment Effectiveness as Per the FACE-Q (Nasolabial Folds Domain) Questionnaire. The FACE-Q Measures the Experience and Outcomes of Aesthetic Facial Procedures From the Patient's Perspective.

FACE-Q questionnaire is composed of 5 questions with a score linked to answers (1 being 'Not at all' and 4 being 'Extremely'). The subject will be instructed as follows: These questions ask about how you look right now. For each question, circle only one answer. With your nasolabial folds in mind (the deep lines that run downward from the sides of your nose), in the past week, how much have you been bothered by:, and will provide response. To calculate the FACE-Q, outcomes from all 5 questions were pooled, data were transformed so that higher scores reflected a superior outcome, and adapted to a scale of 100 units (i.e. lowest score = 0, highest score = 100).

Time frame: Visit 1 (Baseline) and Visit 2 (Day 30)

ArmMeasureGroupValue (MEAN)Dispersion
RHA®4 With New Anesthetic AgentSubject's Perception of Treatment Effectiveness as Per the FACE-Q (Nasolabial Folds Domain) Questionnaire. The FACE-Q Measures the Experience and Outcomes of Aesthetic Facial Procedures From the Patient's Perspective.Baseline Face-Q Score25.2 score on a scaleStandard Deviation 21.12
RHA®4 With New Anesthetic AgentSubject's Perception of Treatment Effectiveness as Per the FACE-Q (Nasolabial Folds Domain) Questionnaire. The FACE-Q Measures the Experience and Outcomes of Aesthetic Facial Procedures From the Patient's Perspective.Day 30 Face-Q Score89.0 score on a scaleStandard Deviation 15.19
RHA®4 With New Anesthetic AgentSubject's Perception of Treatment Effectiveness as Per the FACE-Q (Nasolabial Folds Domain) Questionnaire. The FACE-Q Measures the Experience and Outcomes of Aesthetic Facial Procedures From the Patient's Perspective.Face-Q Change from Baseline to Day 3063.8 score on a scaleStandard Deviation 24.69
RHA®4-LidocaineSubject's Perception of Treatment Effectiveness as Per the FACE-Q (Nasolabial Folds Domain) Questionnaire. The FACE-Q Measures the Experience and Outcomes of Aesthetic Facial Procedures From the Patient's Perspective.Baseline Face-Q Score24.3 score on a scaleStandard Deviation 20.34
RHA®4-LidocaineSubject's Perception of Treatment Effectiveness as Per the FACE-Q (Nasolabial Folds Domain) Questionnaire. The FACE-Q Measures the Experience and Outcomes of Aesthetic Facial Procedures From the Patient's Perspective.Day 30 Face-Q Score88.5 score on a scaleStandard Deviation 16.16
RHA®4-LidocaineSubject's Perception of Treatment Effectiveness as Per the FACE-Q (Nasolabial Folds Domain) Questionnaire. The FACE-Q Measures the Experience and Outcomes of Aesthetic Facial Procedures From the Patient's Perspective.Face-Q Change from Baseline to Day 3064.2 score on a scaleStandard Deviation 25.06

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