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Safety and Effectiveness of Restylane® Kysse for Lip Augmentation in Chinese Subjects

A Prospective Clinical Study to Evaluate Safety and Effectiveness of Restylane® Kysse for Lip Augmentation in Chinese Subjects

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05342753
Enrollment
22
Registered
2022-04-25
Start date
2022-06-13
Completion date
2024-11-07
Last updated
2025-12-22

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

Conditions

Lip Augmentation

Brief summary

Open-label, phase IV, post-marketing study to evaluate aesthetic improvement in Chinese subjects after treatment with Restylane Kysse.

Interventions

DEVICERestylane Kysse

Hyaluronic Acid: Injectable gel for lip augmentation and the correction of upper perioral rhytids

Sponsors

Galderma R&D
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Participants willing to comply with the requirements of the study and providing a signed written informed consent * Ability to adequately understand the verbal explanations and the written subject information provided in English * Subjects seeking augmentation therapy for the lips * Adult males or non-pregnant, non-breastfeeding females, 22 years of age or older with both biological parents of full Chinese descent

Exclusion criteria

* Known/previous allergy or hypersensitivity to any injectable hyaluronic acid (HA) gel or to gram-positive bacterial proteins * Previous use of any permanent (non-biodegradable) or semipermanent (e.g., calcium hydroxylapatite or poly-L-lactic acid) facial tissue augmentation therapy, lifting threads, permanent implants or autologous fat below the level of the lower orbital rim. * Previous use of any HA-based or collagen-based biodegradable facial tissue augmentation therapy below the level of the lower orbital rim within 12 months prior to the baseline visit. * Previous facial surgery, within 6 months, below the level of the lower orbital rim * Previous surgery to the upper or lower lip, lip piercing or tattoo, or history of facial trauma. * Participation in any interventional clinical study within 30 days of screening

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline on the MLFS by Treatment Area at Week 48 After the Last Injection48 weeks after last injection (up to 52 weeks)The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Improvement was defined as at least 1-point change from baseline in lip fullness. Number of participants with no improvement, one grade, two grade and three grade improvement are reported for this outcome measure.
Change From Baseline on the MLFS by Treatment Area at Week 32 After the Last Injection32 weeks after last injection (up to 36 weeks)The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Improvement was defined as at least 1-point change from baseline in lip fullness. Number of participants with no improvement, one grade, two grade and three grade improvement are reported for this outcome measure.
Change From Baseline on the MLFS by Treatment Area at Week 40 After the Last Injection40 weeks after last injection (up to 44 weeks)The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Improvement was defined as at least 1-point change from baseline in lip fullness. Number of participants with no improvement, one grade, two grade and three grade improvement are reported for this outcome measure.
Percentage of Participants Assessed as At Least 1-point Improvement From Baseline on Medicis Lip Fullness Scale (MLFS)At Week 8The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Percentage of participants with at least 1-point improvement from baseline on MLFS are reported for this outcome measure.
Percentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFSAt Week 16The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Percentage of participants with at least 1-point improvement from baseline on MLFS are reported for this outcome measure.
Change From Baseline on the MLFS by Treatment Area at Week 8 After the Last Injection8 weeks after last injection (up to 12 weeks)The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Improvement was defined as at least 1-point change from baseline in lip fullness. Number of participants with no improvement, one grade, two grade and three grade improvement are reported for this outcome measure.
Change From Baseline on the MLFS by Treatment Area at Week 16 After the Last Injection16 weeks after last injection (up to 20 weeks)The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Improvement was defined as at least 1-point change from baseline in lip fullness. Number of participants with no improvement, one grade, two grade and three grade improvement are reported for this outcome measure.
Change From Baseline on the MLFS by Treatment Area at Week 24 After the Last Injection24 weeks after last injection (up to 28 weeks)The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Improvement was defined as at least 1-point change from baseline in lip fullness. Number of participants with no improvement, one grade, two grade and three grade improvement are reported for this outcome measure.

Secondary

MeasureTime frameDescription
Percentage of Participants With At Least Improved on the Global Aesthetic Improvement Scale (GAIS) as Assessed by Treating Investigator at Weeks 8, 16, 24, 32, 40, and 48At Weeks 8, 16, 24, 32, 40, and 48The GAIS is a 7-point categorical scale ranging from -3 (Very Much Worse) to +3 (very much improved), used by the Treating Investigator to assess changes in the appearance of participants' lips following treatment by responding to the question: With respect to the appearance of the participant's lips, how would you describe the result of the lip treatment compared to the photos taken before treatment? by using the respective categorical scale as follows: Very Much Improved, Much Improved, Improved, No Change, Worse, Much Worse, Very Much Worse. In this outcome measure, percentage of participants who achieved at least 'Improved' on the GAIS assessed by treating investigator at Weeks 8, 16, 24, 32, 40, and 48 were reported.
Percentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)At Weeks 8, 16, 24, 32, 40, and 48The WAS is a validated photograph-based outcome instrument that is designed specifically for quantifying facial folds. Scoring of fold severity is based on visual assessment of the length and apparent depth of the wrinkle at a certain time-point. Scoring of the upper perioral rhytids and oral commissures was based on visual live assessment by the investigator at defined time points; by using respective categorical scale ranging from Grade 0 to 5 where: grade 0 or 'No wrinkles', (1) 'Just perceptible wrinkle', (2) 'Shallow wrinkles', (3) 'Moderately deep wrinkle', (4) 'Deep wrinkle, well-defined edges', (5) 'Very deep wrinkle, redundant fold', higher grade represented higher fold severity. Responder was defined as a participant with at least a 1-point improvement from baseline.

Countries

United States

Participant flow

Recruitment details

This study was conducted from 13 June 2022 to 07 November 2024.

Pre-assignment details

A total of 25 participants with a score of 1 (Very Thin) or 2 (Thin) on the Medicis Lip Fullness Scale (MLFS) were screened for the study, of which 3 were screen failures. 22 participants were treated with Restylane Kysse in at least 1 lip.

Participants by arm

ArmCount
Restylane Kysse
Participants received an injection in the lips with sufficient amount of Restylane Kysse to achieve optimal aesthetic improvement, as determined by the Investigator and participant at baseline (Day 1) with optional touch-up treatments at the 4-week follow-up visit.
22
Total22

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyLost to Follow-up1
Overall StudyWithdrawal by Subject6

Baseline characteristics

CharacteristicRestylane Kysse
Age, Continuous43.1 years
STANDARD_DEVIATION 13.5
MLFS-lower lip
1 (very thin)
0 Participants
MLFS-lower lip
2 (thin)
22 Participants
MLFS-upper lip
1 (very thin)
0 Participants
MLFS-upper lip
2 (thin)
22 Participants
Race/Ethnicity, Customized
Han Chinese
22 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
22 Participants
Race (NIH/OMB)
Black or African American
0 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
0 Participants
Sex: Female, Male
Female
21 Participants
Sex: Female, Male
Male
1 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 22
other
Total, other adverse events
2 / 22
serious
Total, serious adverse events
0 / 22

Outcome results

Primary

Change From Baseline on the MLFS by Treatment Area at Week 16 After the Last Injection

The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Improvement was defined as at least 1-point change from baseline in lip fullness. Number of participants with no improvement, one grade, two grade and three grade improvement are reported for this outcome measure.

Time frame: 16 weeks after last injection (up to 20 weeks)

Population: The mITT population included all participants who were treated in both lips. Here, 'overall number of participants analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 16 After the Last InjectionUpper lipNo improvement1 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 16 After the Last InjectionLower lipOne grade improvement6 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 16 After the Last InjectionLower lipTwo grade improvement9 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 16 After the Last InjectionLower lipThree grade improvement1 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 16 After the Last InjectionUpper lipOne grade improvement7 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 16 After the Last InjectionUpper lipTwo grade improvement8 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 16 After the Last InjectionUpper lipThree grade improvement1 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 16 After the Last InjectionLower lipNo improvement1 Participants
Primary

Change From Baseline on the MLFS by Treatment Area at Week 24 After the Last Injection

The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Improvement was defined as at least 1-point change from baseline in lip fullness. Number of participants with no improvement, one grade, two grade and three grade improvement are reported for this outcome measure.

Time frame: 24 weeks after last injection (up to 28 weeks)

Population: The mITT population included all participants who were treated in both lips. Here, 'overall number of participants analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 24 After the Last InjectionUpper lipNo improvement1 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 24 After the Last InjectionUpper lipThree grade improvement1 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 24 After the Last InjectionUpper lipOne grade improvement6 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 24 After the Last InjectionUpper lipTwo grade improvement6 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 24 After the Last InjectionLower lipNo improvement1 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 24 After the Last InjectionLower lipOne grade improvement6 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 24 After the Last InjectionLower lipTwo grade improvement6 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 24 After the Last InjectionLower lipThree grade improvement1 Participants
Primary

Change From Baseline on the MLFS by Treatment Area at Week 32 After the Last Injection

The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Improvement was defined as at least 1-point change from baseline in lip fullness. Number of participants with no improvement, one grade, two grade and three grade improvement are reported for this outcome measure.

Time frame: 32 weeks after last injection (up to 36 weeks)

Population: The mITT population included all participants who were treated in both lips. Here, 'overall number of participants analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 32 After the Last InjectionUpper lipThree grade improvement1 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 32 After the Last InjectionLower lipNo improvement2 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 32 After the Last InjectionUpper lipNo improvement2 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 32 After the Last InjectionUpper lipOne grade improvement9 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 32 After the Last InjectionUpper lipTwo grade improvement4 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 32 After the Last InjectionLower lipOne grade improvement8 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 32 After the Last InjectionLower lipTwo grade improvement5 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 32 After the Last InjectionLower lipThree grade improvement1 Participants
Primary

Change From Baseline on the MLFS by Treatment Area at Week 40 After the Last Injection

The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Improvement was defined as at least 1-point change from baseline in lip fullness. Number of participants with no improvement, one grade, two grade and three grade improvement are reported for this outcome measure.

Time frame: 40 weeks after last injection (up to 44 weeks)

Population: The mITT population included all participants who were treated in both lips. Here, 'overall number of participants analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 40 After the Last InjectionUpper lipNo improvement2 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 40 After the Last InjectionUpper lipOne grade improvement8 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 40 After the Last InjectionUpper lipTwo grade improvement4 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 40 After the Last InjectionUpper lipThree grade improvement1 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 40 After the Last InjectionLower lipOne grade improvement7 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 40 After the Last InjectionLower lipNo improvement2 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 40 After the Last InjectionLower lipTwo grade improvement5 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 40 After the Last InjectionLower lipThree grade improvement1 Participants
Primary

Change From Baseline on the MLFS by Treatment Area at Week 48 After the Last Injection

The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Improvement was defined as at least 1-point change from baseline in lip fullness. Number of participants with no improvement, one grade, two grade and three grade improvement are reported for this outcome measure.

Time frame: 48 weeks after last injection (up to 52 weeks)

Population: The mITT population included all participants who were treated in both lips. Here, 'overall number of participants analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 48 After the Last InjectionUpper lipNo improvement2 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 48 After the Last InjectionUpper lipOne grade improvement9 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 48 After the Last InjectionUpper lipTwo grade improvement4 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 48 After the Last InjectionUpper lipThree grade improvement0 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 48 After the Last InjectionLower lipNo improvement2 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 48 After the Last InjectionLower lipOne grade improvement9 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 48 After the Last InjectionLower lipTwo grade improvement4 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 48 After the Last InjectionLower lipThree grade improvement0 Participants
Primary

Change From Baseline on the MLFS by Treatment Area at Week 8 After the Last Injection

The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Improvement was defined as at least 1-point change from baseline in lip fullness. Number of participants with no improvement, one grade, two grade and three grade improvement are reported for this outcome measure.

Time frame: 8 weeks after last injection (up to 12 weeks)

Population: The mITT population included all participants who were treated in both lips. Here, 'overall number of participants analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 8 After the Last InjectionUpper lipNo improvement1 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 8 After the Last InjectionUpper lipThree grade improvement1 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 8 After the Last InjectionLower lipOne grade improvement8 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 8 After the Last InjectionLower lipThree grade improvement1 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 8 After the Last InjectionUpper lipOne grade improvement10 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 8 After the Last InjectionUpper lipTwo grade improvement7 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 8 After the Last InjectionLower lipNo improvement1 Participants
Restylane KysseChange From Baseline on the MLFS by Treatment Area at Week 8 After the Last InjectionLower lipTwo grade improvement9 Participants
Primary

Percentage of Participants Assessed as At Least 1-point Improvement From Baseline on Medicis Lip Fullness Scale (MLFS)

The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Percentage of participants with at least 1-point improvement from baseline on MLFS are reported for this outcome measure.

Time frame: At Week 8

Population: The modified intent-to-treat (mITT) population included all participants who were treated in both lips. Here, 'overall number of participants analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
Restylane KyssePercentage of Participants Assessed as At Least 1-point Improvement From Baseline on Medicis Lip Fullness Scale (MLFS)Upper lip94.7 percentage of participants
Restylane KyssePercentage of Participants Assessed as At Least 1-point Improvement From Baseline on Medicis Lip Fullness Scale (MLFS)Lower lip94.7 percentage of participants
Primary

Percentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFS

The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Percentage of participants with at least 1-point improvement from baseline on MLFS are reported for this outcome measure.

Time frame: At Week 24

Population: The mITT population included all participants who were treated in both lips. Here, 'overall number of participants analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
Restylane KyssePercentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFSUpper lip92.9 percentage of participants
Restylane KyssePercentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFSLower lip92.9 percentage of participants
Primary

Percentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFS

The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Percentage of participants with at least 1-point improvement from baseline on MLFS are reported for this outcome measure.

Time frame: At Week 40

Population: The mITT population included all participants who were treated in both lips. Here, 'overall number of participants analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
Restylane KyssePercentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFSLower lip86.7 percentage of participants
Restylane KyssePercentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFSUpper lip86.7 percentage of participants
Primary

Percentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFS

The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Percentage of participants with at least 1-point improvement from baseline on MLFS are reported for this outcome measure.

Time frame: At Week 32

Population: The mITT population included all participants who were treated in both lips. Here, 'overall number of participants analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
Restylane KyssePercentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFSUpper lip87.5 percentage of participants
Restylane KyssePercentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFSLower lip87.5 percentage of participants
Primary

Percentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFS

The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Percentage of participants with at least 1-point improvement from baseline on MLFS are reported for this outcome measure.

Time frame: At Week 48

Population: The mITT population included all participants who were treated in both lips. Here, 'overall number of participants analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
Restylane KyssePercentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFSUpper lip86.7 percentage of participants
Restylane KyssePercentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFSLower lip86.7 percentage of participants
Primary

Percentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFS

The MLFS is a validated photograph-based outcome instrument that is designed specifically for quantifying lip fullness. Scoring of lip fullness from Grade 1 to 5 (grade 1: Very Thin, grade 2: Thin, grade 3: Medium, grade 4: Full and grade 5: Very Full; with a higher score reflecting greater lip fullness) was based on visual live assessment by the Investigator. Percentage of participants with at least 1-point improvement from baseline on MLFS are reported for this outcome measure.

Time frame: At Week 16

Population: The mITT population included all participants who were treated in both lips. Here, 'overall number of participants analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
Restylane KyssePercentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFSUpper lip94.1 percentage of participants
Restylane KyssePercentage of Participants Assessed as At Least 1-point Improvement From Baseline on MLFSLower lip94.1 percentage of participants
Secondary

Percentage of Participants With At Least Improved on the Global Aesthetic Improvement Scale (GAIS) as Assessed by Treating Investigator at Weeks 8, 16, 24, 32, 40, and 48

The GAIS is a 7-point categorical scale ranging from -3 (Very Much Worse) to +3 (very much improved), used by the Treating Investigator to assess changes in the appearance of participants' lips following treatment by responding to the question: With respect to the appearance of the participant's lips, how would you describe the result of the lip treatment compared to the photos taken before treatment? by using the respective categorical scale as follows: Very Much Improved, Much Improved, Improved, No Change, Worse, Much Worse, Very Much Worse. In this outcome measure, percentage of participants who achieved at least 'Improved' on the GAIS assessed by treating investigator at Weeks 8, 16, 24, 32, 40, and 48 were reported.

Time frame: At Weeks 8, 16, 24, 32, 40, and 48

Population: The mITT population included all participants who were treated in both lips. Here, 'number analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
Restylane KyssePercentage of Participants With At Least Improved on the Global Aesthetic Improvement Scale (GAIS) as Assessed by Treating Investigator at Weeks 8, 16, 24, 32, 40, and 48At Week 8100.0 percentage of participants
Restylane KyssePercentage of Participants With At Least Improved on the Global Aesthetic Improvement Scale (GAIS) as Assessed by Treating Investigator at Weeks 8, 16, 24, 32, 40, and 48At Week 32100.0 percentage of participants
Restylane KyssePercentage of Participants With At Least Improved on the Global Aesthetic Improvement Scale (GAIS) as Assessed by Treating Investigator at Weeks 8, 16, 24, 32, 40, and 48At Week 40100.0 percentage of participants
Restylane KyssePercentage of Participants With At Least Improved on the Global Aesthetic Improvement Scale (GAIS) as Assessed by Treating Investigator at Weeks 8, 16, 24, 32, 40, and 48At Week 48100.0 percentage of participants
Restylane KyssePercentage of Participants With At Least Improved on the Global Aesthetic Improvement Scale (GAIS) as Assessed by Treating Investigator at Weeks 8, 16, 24, 32, 40, and 48At Week 16100.0 percentage of participants
Restylane KyssePercentage of Participants With At Least Improved on the Global Aesthetic Improvement Scale (GAIS) as Assessed by Treating Investigator at Weeks 8, 16, 24, 32, 40, and 48At Week 24100.0 percentage of participants
Secondary

Percentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)

The WAS is a validated photograph-based outcome instrument that is designed specifically for quantifying facial folds. Scoring of fold severity is based on visual assessment of the length and apparent depth of the wrinkle at a certain time-point. Scoring of the upper perioral rhytids and oral commissures was based on visual live assessment by the investigator at defined time points; by using respective categorical scale ranging from Grade 0 to 5 where: grade 0 or 'No wrinkles', (1) 'Just perceptible wrinkle', (2) 'Shallow wrinkles', (3) 'Moderately deep wrinkle', (4) 'Deep wrinkle, well-defined edges', (5) 'Very deep wrinkle, redundant fold', higher grade represented higher fold severity. Responder was defined as a participant with at least a 1-point improvement from baseline.

Time frame: At Weeks 8, 16, 24, 32, 40, and 48

Population: The mITT population included all participants who were treated in both lips. Here, 'number analyzed' signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Upper perioral rhytids; Week 16100 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Upper perioral rhytids; Week 24100.0 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Upper perioral rhytids; Week 40100.0 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Upper perioral rhytids; Week 48100.0 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Left oral commissures; Week 892.3 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Left oral commissures; Week 16100.0 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Left oral commissures; Week 2490.9 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Left oral commissures; Week 3291.7 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Left oral commissures; Week 40100.0 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Left oral commissures; Week 48100.0 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Right oral commissures; Week 892.3 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Right oral commissures; Week 16100.0 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Right oral commissures; Week 2490.9 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Right oral commissures; Week 3291.7 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Right oral commissures; Week 40100.0 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Right oral commissures; Week 48100.0 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Upper perioral rhytids; Week 8100 percentage of participants
Restylane KyssePercentage of Responders With At Least Improved on the Wrinkle Assessment Scale (WAS)Upper perioral rhytids; Week 32100.0 percentage of participants

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