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Effectiveness and Safety of Princess FILLER Lidocaine in Correction of Nasolabial Folds (NLF)

A Randomized, Subject- and Evaluating Investigator-blinded, Controlled, Multicenter, Split-face, Comparison Clinical Investigation to Evaluate Effectiveness and Safety of Princess FILLER Lidocaine in the Correction of Nasolabial Folds

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03990883
Acronym
FILIDO
Enrollment
295
Registered
2019-06-19
Start date
2019-06-04
Completion date
2022-02-15
Last updated
2025-02-04

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

Conditions

Dermatological Non-Disease

Keywords

nasolabial folds, correction

Brief summary

Clinical Investigation to demonstrate the effectiveness and safety of Princess Filler Lidocaine in the correction of moderate to severe nasolabial folds

Detailed description

Clinical Investigation to assess the effectiveness of Princess Filler Lidocaine in reducing the severity of nasolabial folds compared to Juvederm Ultra XC, based on the independent blinded evaluating investigator live assessment using the Nasolabial Folds Severity Rating Scale (NLF-SRS) at Week 24 after initial treatment and relative to Baseline assessments

Interventions

correction of nasolabial folds

Sponsors

Syneos Health
CollaboratorOTHER
Croma-Pharma GmbH
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Masking description

subject- and evaluator-blinded

Intervention model description

Pivotal study

Eligibility

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

Inclusion criteria

1. Male or female subjects, 22 years of age or older, at the Screening visit 2. Subjects with two fully visible, approximately symmetrical moderate to severe NLFs (same severity) with severity scores of 2 or 3 on the 5- point NLF-SRS for both NLF as judged by the treating investigator in conjunction with the independent blinded evaluating investigator. 3. Females of childbearing potential must have a negative urine pregnancy test at injection visits and must agree to use an adequate method of contraception for the duration of the clinical investigation 4. Healthy skin in the nasolabial area and free of diseases that could interfere in cutaneous aging evaluation 5. Willingness to abstain from any aesthetic or surgical procedures in the treatment area for the duration of the clinical investigation, including botulinum toxin injections (except glabellar or forehead botulinum toxin treatment) 6. Subjects having understood the purpose and conduct of the clinical investigation and having given written informed consent

Exclusion criteria

1. For females: pregnant and/or lactating or planning to become pregnant during the clinical investigation 2. History of allergies or hypersensitivity to HA preparations, lidocaine or anesthetics of any amide-based anesthetic 3. Since Juvéderm® Ultra XC contains trace amounts of Gram-positive bacterial proteins, subjects with history of allergies to such material can not be included in this clinical investigation 4. Tendency to keloid formation, hypertrophic scars and/or pigmentation disorders 5. Known human immune deficiency virus-positive individuals 6. Presence of infectious, inflammatory or proliferative cancerous or pre-cancerous lesions in the area to be treated 7. Re-current herpes simplex in the treatment area 8. History or presence of any autoimmune or connective tissue disease, or current treatment with immunomodulating therapy 9. Uncontrolled (or instable) diabetes mellitus or systemic diseases 10. Facial plastic surgery, tissue augmentation with silicone, fat or another non-absorbable substance (permanent fillers) area of device application 11. Implantation of facial dermal fillers in the treatment area in the preceding twelve months 12. Skin of the nasolabial region affected by aesthetic treatments (e.g. laser therapy, absorbable and non-absorbable sutures (threads), microneedling and/or botulinum toxin within the last twelve months, dermabrasion and mesotherapy within the last six months, chemical peeling within the last three months) or planning to undergo such procedures during the clinical investigation 13. Facial lypolysis, including submental fat treatments, within last month prior to enrollment and during the clinical investigation 14. Bariatric surgery within 12 months prior to enrollement and during the clinical investigation 15. History of bleeding disorders and/or use of anticoagulant, antiplatelet or thrombolytic medication from ten days pre- to three days post injection 16. Planned dental/oral surgery or modification (bridge-work, implants) within two weeks prior injection and to a minimum of four weeks post injection 17. Any medical condition prohibiting the inclusion in the clinical investigation according to the judgment of the treating investigator 18. Previous enrollment in this clinical investigation 19. Current participation in another clinical investigation, or treatment with any investigational drug/medical device within 30 days prior to clinical investigation enrollment 20. Any dependency of the subject to the treating investigator, the blinded independent evaluating investigator or clinical investigation site (e.g. employees of the sponsor), or subjects who are employees or relatives of the treating investigator and/or the independent blinded evaluating investigator 21. Subjects who have one of the following assessments during the visual examinations at Baseline: Snellen visual acuity test worse than 20/40 (with corrective eyewear, if applicable), abnormal confrontational visual field test, or abnormal ocular motility test. Repeat Treatment - Inclusion Criteria: 1. In the opinion of the treating investigator, the subject has returned to sufficient severity of both NLFs that would have qualified him for enrollment into the clinical investigation initially (note that the subject does not have to return to his Baseline severity to be permitted to receive a repeat treatment) 2. Subjects with NLFs with severity scores of 2 or 3 on the 5-point NLF-SRS for both NLFs as judged by the treating investigator in conjunction with the independent blinded evaluating investigator (note that it is not necessary for the treating and evaluating investigator to agree on the same rating) 3. Females of childbearing age must have a negative urine pregnancy test at the repeat-treatment visit and must agree to continue to use an adequate method of contraception for the duration of the clinical investigation 4. Healthy skin in the nasolabial area and free of diseases that could interfere in cutaneous aging evaluation and/or injection Repeat Treatment -

Design outcomes

Primary

MeasureTime frameDescription
Responder Status Based on Independent Evaluating Investigator Live Assessment at Week 24 - Full Analysis DatasetWeek 24The percentage of responders based on the independent blinded evaluating investigator live assessment at Week 24 after initial treatment and compared to Juvederm® Ultra XC. Responder is defined as having at least one grade improvement over Baseline, on the 5-point Nasolabial Folds-Severity Rating Scale (NLF-SRS). NLF-SRS scores are ranked as 0 (None/minimal), 1 (Mild), 2 (Moderate), 3 (Severe) and 4 (Extreme). Hierarchical Testing Procedure: This primary outcome measure is assessed first in a hierarchical testing sequence.
Responder Status Based on Independent Evaluating Investigator Live Assessment at Week 24 - Per Protocol DatasetWeek 24The percentage of responders based on the independent blinded evaluating investigator live assessment at Week 24 after initial treatment and compared to Juvederm® Ultra XC. Responder is defined as having at least one grade improvement over Baseline, on the 5-point Nasolabial Folds-Severity Rating Scale (NLF-SRS). NLF-SRS scores are ranked as 0 (None/minimal), 1 (Mild), 2 (Moderate), 3 (Severe) and 4 (Extreme). Hierarchical Testing Procedure: This is the second outcome measure in the hierarchical testing sequence. Statistical significance for this measure will only be assessed if the first outcome measure achieves statistical significance at the predefined alpha level (0.025).

Secondary

MeasureTime frameDescription
Responder Status Based on Treating Investigator Live Assessment at Week 24 - Full Analysis SetWeek 24The percentage of responders based on the treating investigator live assessment at Week 24 after initial treatment and compared to Juvederm® Ultra XC. Responder is defined as having at least one grade improvement over Baseline, on the 5-point Nasolabial Folds-Severity Rating Scale (NLF-SRS). NLF-SRS scores are ranked as 0 (None/minimal), 1 (Mild), 2 (Moderate), 3 (Severe) and 4 (Extreme). Hierarchical Testing Procedure: This is the fifth outcome measure to be analyzed as part of the hierarchical testing sequence. Statistical significance will be assessed only if the first four outcome measures demonstrate statistical significance at the predefined alpha level (0.025).
Responder Status Based on Treating Investigator Live Assessment at Week 24 - Per Protocol SetWeek 24The percentage of responders based on the treating investigator live assessment at Week 24 after initial treatment and compared to Juvederm® Ultra XC. Responder is defined as having at least one grade improvement over Baseline, on the 5-point Nasolabial Folds-Severity Rating Scale (NLF-SRS). NLF-SRS scores are ranked as 0 (None/minimal), 1 (Mild), 2 (Moderate), 3 (Severe) and 4 (Extreme). Hierarchical Testing Procedure: This is the sixth outcome measure to be analyzed as part of the hierarchical testing sequence. Statistical significance will be assessed only if the first five outcome measures demonstrate statistical significance at the predefined alpha level (0.025).
Responder Status Based on Independent Photographic Reviewers Assessment at Week 24 - Full Analysis DatasetWeek 24The percentage of responders based on the independent photographic reviewers assessment at Week 24 after initial treatment and compared to Juvederm® Ultra XC and based on photographs. Responder is defined as having at least one grade improvement over Baseline, on the 5-point Nasolabial Folds-Severity Rating Scale (NLF-SRS). NLF-SRS scores are ranked as 0 (None/minimal), 1 (Mild), 2 (Moderate), 3 (Severe) and 4 (Extreme). Hierarchical Testing Procedure: This is the third outcome measure to be analyzed in the hierarchical testing sequence. Statistical significance for this measure will only be assessed if the first and second outcome measures achieve statistical significance at the predefined alpha level (0.025).
Improvement Over Baseline Based on Subject Assessment at Week 24Week 24The percentage of subjects with an improvement over Baseline (subjects who have been rated as very much improved or much improved or improved), based on subject assessment at Week 24 after initial treatment and using the 5-point Global Aesthetic Improvement Scale (GAIS). GAIS grades are ranked as very much improved, much improved, improved, no change, and worse.
Improvement Over Baseline Based on Independent Blinded Evaluating Investigator Assessment at Week 24Week 24The percentage of subjects with an improvement over Baseline (subjects who have been rated as very much improved or much improved or improved), based on the independent blinded evaluating investigator assessment at Week 24 after initial treatment and using the 5-point Global Aesthetic Improvement Scale (GAIS). GAIS grades are ranked as very much improved, much improved, improved, no change, and worse.
Responder Status Based on Independent Photographic Reviewers Assessment at Week 24 - Per Protocol DatasetWeek 24The percentage of responders based on the independent photographic reviewers assessment at Week 24 after initial treatment and compared to Juvederm® Ultra XC and based on photographs. Responder is defined as having at least one grade improvement over Baseline, on the 5-point Nasolabial Folds-Severity Rating Scale (NLF-SRS). NLF-SRS scores are ranked as 0 (None/minimal), 1 (Mild), 2 (Moderate), 3 (Severe) and 4 (Extreme). Hierarchical Testing Procedure: This is the fourth outcome measure in the hierarchical testing sequence. Testing for this measure is contingent upon statistical significance being demonstrated for the first three outcome measures at the predefined alpha level (0.025).

Countries

United States

Participant flow

Pre-assignment details

Of 295 enrolled participants, 270 met inclusion criteria and were randomized to treatment.

Participants by arm

ArmCount
Treatment With Princess Filler Lidocaine on Left Side, Treatment With Comparator on Right Side
Treatment of nasolabial folds (NLF) with both Investigational Device and Comparator. Princess Filler Lidocaine: Injection into the nasolabial fold on the left side of the face. Comparator: Injection into the nasolabial fold on the right side of the face.
136
Treatment With Princess Filler Lidocaine on Right Side, Treatment With Comparator on Left Side
Treatment of nasolabial folds (NLF) with both Investigational Device and Comparator. Princess Filler Lidocaine: Injection into the nasolabial fold on the right side of the face. Comparator: Injection into the nasolabial fold on the left side of the face.
134
Total270

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Blinded Treatment PhaseAdverse Event110
Blinded Treatment PhaseCOVID-19320
Blinded Treatment PhaseLost to Follow-up7100
Blinded Treatment PhasePersonal Reasons630
Blinded Treatment PhasePhysician Decision100
Blinded Treatment PhaseTemporary Hold on Repeat Treatment320
Blinded Treatment PhaseWithdrawal by Subject250
Open Label Extension PhaseLost to Follow-up001
Open Label Extension PhaseWithdrawal by Subject001

Baseline characteristics

CharacteristicTreatment With Princess Filler Lidocaine on Left Side, Treatment With Comparator on Right SideTotalTreatment With Princess Filler Lidocaine on Right Side, Treatment With Comparator on Left Side
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
29 Participants51 Participants22 Participants
Age, Categorical
Between 18 and 65 years
107 Participants219 Participants112 Participants
Age, Continuous55.8 years
STANDARD_DEVIATION 9.65
55.4 years
STANDARD_DEVIATION 9.37
55.0 years
STANDARD_DEVIATION 9.08
Ethnicity (NIH/OMB)
Hispanic or Latino
29 Participants60 Participants31 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
107 Participants210 Participants103 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Fitzpatrick Skin Type
Type I
9 Participants12 Participants3 Participants
Fitzpatrick Skin Type
Type II
36 Participants78 Participants42 Participants
Fitzpatrick Skin Type
Type III
41 Participants81 Participants40 Participants
Fitzpatrick Skin Type
Type IV
32 Participants63 Participants31 Participants
Fitzpatrick Skin Type
Type V
11 Participants21 Participants10 Participants
Fitzpatrick Skin Type
Type VI
7 Participants15 Participants8 Participants
Nasolabial Folds-Severity Rating Scale (NLF-SRS)
NLF-SRS Left Side of Face
Grade 0 - none/minimal
0 Participants0 Participants0 Participants
Nasolabial Folds-Severity Rating Scale (NLF-SRS)
NLF-SRS Left Side of Face
Grade 1 - mild
0 Participants0 Participants0 Participants
Nasolabial Folds-Severity Rating Scale (NLF-SRS)
NLF-SRS Left Side of Face
Grade 2 - moderate
56 Participants104 Participants48 Participants
Nasolabial Folds-Severity Rating Scale (NLF-SRS)
NLF-SRS Left Side of Face
Grade 3 - severe
80 Participants166 Participants86 Participants
Nasolabial Folds-Severity Rating Scale (NLF-SRS)
NLF-SRS Left Side of Face
Grade 4 - extreme
0 Participants0 Participants0 Participants
Nasolabial Folds-Severity Rating Scale (NLF-SRS)
NLF-SRS Right Side of Face
Grade 0 - none/minimal
0 Participants0 Participants0 Participants
Nasolabial Folds-Severity Rating Scale (NLF-SRS)
NLF-SRS Right Side of Face
Grade 1 - mild
0 Participants0 Participants0 Participants
Nasolabial Folds-Severity Rating Scale (NLF-SRS)
NLF-SRS Right Side of Face
Grade 2 - moderate
61 Participants112 Participants51 Participants
Nasolabial Folds-Severity Rating Scale (NLF-SRS)
NLF-SRS Right Side of Face
Grade 3 - severe
75 Participants158 Participants83 Participants
Nasolabial Folds-Severity Rating Scale (NLF-SRS)
NLF-SRS Right Side of Face
Grade 4 - extreme
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
6 Participants10 Participants4 Participants
Race (NIH/OMB)
Asian
1 Participants2 Participants1 Participants
Race (NIH/OMB)
Black or African American
14 Participants29 Participants15 Participants
Race (NIH/OMB)
More than one race
2 Participants2 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
112 Participants226 Participants114 Participants
Region of Enrollment
United States
136 participants270 participants134 participants
Sex: Female, Male
Female
133 Participants264 Participants131 Participants
Sex: Female, Male
Male
3 Participants6 Participants3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 2700 / 2700 / 48
other
Total, other adverse events
38 / 27037 / 2703 / 48
serious
Total, serious adverse events
3 / 2703 / 2701 / 48

Outcome results

Primary

Responder Status Based on Independent Evaluating Investigator Live Assessment at Week 24 - Full Analysis Dataset

The percentage of responders based on the independent blinded evaluating investigator live assessment at Week 24 after initial treatment and compared to Juvederm® Ultra XC. Responder is defined as having at least one grade improvement over Baseline, on the 5-point Nasolabial Folds-Severity Rating Scale (NLF-SRS). NLF-SRS scores are ranked as 0 (None/minimal), 1 (Mild), 2 (Moderate), 3 (Severe) and 4 (Extreme). Hierarchical Testing Procedure: This primary outcome measure is assessed first in a hierarchical testing sequence.

Time frame: Week 24

Population: The population used consists of all randomized subjects who received Princess® FILLER Lidocaine AND the control Juvéderm® Ultra XC at the same visit as initial treatment; if subjects had received only one treatment (only Princess® FILLER Lidocaine or only Juvéderm® Ultra XC) during initial treatment they would have been excluded from the analysis set. Participants were analyzed as randomized.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Princess Filler LidocaineResponder Status Based on Independent Evaluating Investigator Live Assessment at Week 24 - Full Analysis Dataset222 Participants
ComparatorResponder Status Based on Independent Evaluating Investigator Live Assessment at Week 24 - Full Analysis Dataset221 Participants
p-value: <0.000195% CI: [-2.96, 3.7]McNemar
Primary

Responder Status Based on Independent Evaluating Investigator Live Assessment at Week 24 - Per Protocol Dataset

The percentage of responders based on the independent blinded evaluating investigator live assessment at Week 24 after initial treatment and compared to Juvederm® Ultra XC. Responder is defined as having at least one grade improvement over Baseline, on the 5-point Nasolabial Folds-Severity Rating Scale (NLF-SRS). NLF-SRS scores are ranked as 0 (None/minimal), 1 (Mild), 2 (Moderate), 3 (Severe) and 4 (Extreme). Hierarchical Testing Procedure: This is the second outcome measure in the hierarchical testing sequence. Statistical significance for this measure will only be assessed if the first outcome measure achieves statistical significance at the predefined alpha level (0.025).

Time frame: Week 24

Population: The population used consists of all randomized subjects who received Princess® FILLER Lidocaine AND the control Juvéderm® Ultra XC at the same visit as initial treatment and who had no major protocol deviations. Participants were analyzed as randomized.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Princess Filler LidocaineResponder Status Based on Independent Evaluating Investigator Live Assessment at Week 24 - Per Protocol Dataset187 Participants
ComparatorResponder Status Based on Independent Evaluating Investigator Live Assessment at Week 24 - Per Protocol Dataset187 Participants
p-value: <0.000195% CI: [-3.71, 3.71]McNemar
Secondary

Improvement Over Baseline Based on Independent Blinded Evaluating Investigator Assessment at Week 24

The percentage of subjects with an improvement over Baseline (subjects who have been rated as very much improved or much improved or improved), based on the independent blinded evaluating investigator assessment at Week 24 after initial treatment and using the 5-point Global Aesthetic Improvement Scale (GAIS). GAIS grades are ranked as very much improved, much improved, improved, no change, and worse.

Time frame: Week 24

Population: The population used consists of all randomized subjects who received Princess® FILLER Lidocaine AND the control Juvéderm® Ultra XC at the same visit as initial treatment; if subjects had received only one treatment (only Princess® FILLER Lidocaine or only Juvéderm® Ultra XC) during initial treatment they would have been excluded from the analysis set. Participants were analyzed as randomized. Only participants with available data were included in the analysis.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Princess Filler LidocaineImprovement Over Baseline Based on Independent Blinded Evaluating Investigator Assessment at Week 24232 Participants
ComparatorImprovement Over Baseline Based on Independent Blinded Evaluating Investigator Assessment at Week 24231 Participants
Secondary

Improvement Over Baseline Based on Subject Assessment at Week 24

The percentage of subjects with an improvement over Baseline (subjects who have been rated as very much improved or much improved or improved), based on subject assessment at Week 24 after initial treatment and using the 5-point Global Aesthetic Improvement Scale (GAIS). GAIS grades are ranked as very much improved, much improved, improved, no change, and worse.

Time frame: Week 24

Population: The population used consists of all randomized subjects who received Princess® FILLER Lidocaine AND the control Juvéderm® Ultra XC at the same visit as initial treatment; if subjects had received only one treatment (only Princess® FILLER Lidocaine or only Juvéderm® Ultra XC) during initial treatment they would have been excluded from the analysis set. Participants were analyzed as randomized. Only participants with available data were included in the analysis.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Princess Filler LidocaineImprovement Over Baseline Based on Subject Assessment at Week 24229 Participants
ComparatorImprovement Over Baseline Based on Subject Assessment at Week 24228 Participants
Secondary

Responder Status Based on Independent Photographic Reviewers Assessment at Week 24 - Full Analysis Dataset

The percentage of responders based on the independent photographic reviewers assessment at Week 24 after initial treatment and compared to Juvederm® Ultra XC and based on photographs. Responder is defined as having at least one grade improvement over Baseline, on the 5-point Nasolabial Folds-Severity Rating Scale (NLF-SRS). NLF-SRS scores are ranked as 0 (None/minimal), 1 (Mild), 2 (Moderate), 3 (Severe) and 4 (Extreme). Hierarchical Testing Procedure: This is the third outcome measure to be analyzed in the hierarchical testing sequence. Statistical significance for this measure will only be assessed if the first and second outcome measures achieve statistical significance at the predefined alpha level (0.025).

Time frame: Week 24

Population: The population used consists of all randomized subjects who received Princess® FILLER Lidocaine AND the control Juvéderm® Ultra XC at the same visit as initial treatment; if subjects had received only one treatment (only Princess® FILLER Lidocaine or only Juvéderm® Ultra XC) during initial treatment they would have been excluded from the analysis set. Participants were analyzed as randomized.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Princess Filler LidocaineResponder Status Based on Independent Photographic Reviewers Assessment at Week 24 - Full Analysis Dataset165 Participants
ComparatorResponder Status Based on Independent Photographic Reviewers Assessment at Week 24 - Full Analysis Dataset173 Participants
p-value: 0.02595% CI: [-9.99, 4.07]McNemar
Secondary

Responder Status Based on Independent Photographic Reviewers Assessment at Week 24 - Per Protocol Dataset

The percentage of responders based on the independent photographic reviewers assessment at Week 24 after initial treatment and compared to Juvederm® Ultra XC and based on photographs. Responder is defined as having at least one grade improvement over Baseline, on the 5-point Nasolabial Folds-Severity Rating Scale (NLF-SRS). NLF-SRS scores are ranked as 0 (None/minimal), 1 (Mild), 2 (Moderate), 3 (Severe) and 4 (Extreme). Hierarchical Testing Procedure: This is the fourth outcome measure in the hierarchical testing sequence. Testing for this measure is contingent upon statistical significance being demonstrated for the first three outcome measures at the predefined alpha level (0.025).

Time frame: Week 24

Population: The population used consists of all randomized subjects who received Princess® FILLER Lidocaine AND the control Juvéderm® Ultra XC at the same visit as initial treatment and who had no major protocol deviations. Participants were analyzed as randomized.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Princess Filler LidocaineResponder Status Based on Independent Photographic Reviewers Assessment at Week 24 - Per Protocol Dataset145 Participants
ComparatorResponder Status Based on Independent Photographic Reviewers Assessment at Week 24 - Per Protocol Dataset146 Participants
p-value: 0.00995% CI: [-8.42, 7.52]McNemar
Secondary

Responder Status Based on Treating Investigator Live Assessment at Week 24 - Full Analysis Set

The percentage of responders based on the treating investigator live assessment at Week 24 after initial treatment and compared to Juvederm® Ultra XC. Responder is defined as having at least one grade improvement over Baseline, on the 5-point Nasolabial Folds-Severity Rating Scale (NLF-SRS). NLF-SRS scores are ranked as 0 (None/minimal), 1 (Mild), 2 (Moderate), 3 (Severe) and 4 (Extreme). Hierarchical Testing Procedure: This is the fifth outcome measure to be analyzed as part of the hierarchical testing sequence. Statistical significance will be assessed only if the first four outcome measures demonstrate statistical significance at the predefined alpha level (0.025).

Time frame: Week 24

Population: The population used consists of all randomized subjects who received Princess® FILLER Lidocaine AND the control Juvéderm® Ultra XC at the same visit as initial treatment; if subjects had received only one treatment (only Princess® FILLER Lidocaine or only Juvéderm® Ultra XC) during initial treatment they would have been excluded from the analysis set. Participants were analyzed as randomized.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Princess Filler LidocaineResponder Status Based on Treating Investigator Live Assessment at Week 24 - Full Analysis Set225 Participants
ComparatorResponder Status Based on Treating Investigator Live Assessment at Week 24 - Full Analysis Set226 Participants
p-value: <0.000195% CI: [-3.85, 3.11]McNemar
Secondary

Responder Status Based on Treating Investigator Live Assessment at Week 24 - Per Protocol Set

The percentage of responders based on the treating investigator live assessment at Week 24 after initial treatment and compared to Juvederm® Ultra XC. Responder is defined as having at least one grade improvement over Baseline, on the 5-point Nasolabial Folds-Severity Rating Scale (NLF-SRS). NLF-SRS scores are ranked as 0 (None/minimal), 1 (Mild), 2 (Moderate), 3 (Severe) and 4 (Extreme). Hierarchical Testing Procedure: This is the sixth outcome measure to be analyzed as part of the hierarchical testing sequence. Statistical significance will be assessed only if the first five outcome measures demonstrate statistical significance at the predefined alpha level (0.025).

Time frame: Week 24

Population: The population used consists of all randomized subjects who received Princess® FILLER Lidocaine AND the control Juvéderm® Ultra XC at the same visit as initial treatment and who had no major protocol deviations. Participants were analyzed as randomized.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Princess Filler LidocaineResponder Status Based on Treating Investigator Live Assessment at Week 24 - Per Protocol Set194 Participants
ComparatorResponder Status Based on Treating Investigator Live Assessment at Week 24 - Per Protocol Set195 Participants
p-value: <0.000195% CI: [-4.05, 3.16]McNemar

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