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Completed

NCT Number: NCT04540913

RHA® 3 Versus Restylane-L® for Lip Augmentation

This is a multicenter, double-blinded, randomized, prospective, controlled clinical study to identify whether RHA® 3 is non-inferior to Restylane-L® for lip augmentation at Week 12 after the last treatment (initial or touch-up).

At screening, the treating investigator (TI) will evaluate the subject's lip fullness using the validated Teoxane Lip Fullness Scale (5-grade) for eligibility of the subject for the study.

At screening, the blinded live evaluator (BLE) will evaluate the subject's lip fullness using the TLFS to confirm eligibility and to establish a pre-treatment score for assessment of effectiveness.

Enrolled subjects will be randomly assigned in a 3:1 ratio to either the RHA® 3 or the Restylane-L® treatment group. Subjects will be blinded to the study treatment. The TI will administer the fillers, and if necessary, subjects will receive a touch-up treatment 4 weeks after the initial treatment to optimize the results. If the touch-up treatment is administered, the subject will be asked to come to the site for an additional visit 4 weeks after the touch-up injection.

The study duration was extended from 36 to 52 weeks once all subjects had already been enrolled. Nearly 60% of the subjects consented to extend the study to 52 weeks before being eligible for repeat treatment. All data are presented up to 52 weeks (as well as 4 more weeks follow-up after retreatment at 36 or 52 weeks).

Subjects will be followed for 36 to 52 weeks after their last treatment (initial treatment or touch-up), at which point, they will be offered re-treatment with RHA® 3, regardless of their original treatment, provided that the TI deems the treatment to be appropriate and the subject agrees. Reasons for not administering the re-treatment will be documented.

The subject will then be followed for an additional 4 weeks before exiting the study. If the subject or the TI declines re-treatment, this visit (36 or 52 weeks after the last treatment) will be considered the study Exit visit.

For subjects with re-treatment, the Exit visit will be 4 weeks after the re-treatment.

The TI will conduct safety and effectiveness evaluations at each study visit (up to 36 weeks or 52 (if applicable) weeks after the last treatment, and 4 weeks after re treatment) or until all treatment-related ongoing adverse events (AEs) have resolved or resolved with sequelae as per TI judgment or if follow-up is no longer possible.

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Key information

Conditions

Lip Augmentation Lip Lymphoid Interstitial Pneumonia

Age range

22 year and older

Sex eligibility

All sexes

Study type

Interventional

Primary location

United States, Florida

Bradenton, Florida, 34209, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Outpatient, male or female of any race, 22 years of age or older
  • Lip fullness of grade 1 to 3 on the TLFS (ranging from 1 to 5) who desire at least 1 point of correction for upper and/or lower lips OR has Fitzpatrick skin type V or VI and has lip fullness grade 4 or 5 on the TLFS who desire treatment to the vermillion body for upper and/or lower lips. The BLE and TI must independently assess and agree that this criterion is met; however, concordance of fullness is not required. If the assessments of the TI and the BLE are the same or differ by exactly 1 point on the scale, this difference is considered acceptable. If the assessments differ by 2 points or more on the scale, the subject will not be eligible.
  • Willing to abstain from facial aesthetic procedures/therapies that could interfere with study evaluations
  • Able to follow study instructions and complete all required visits.
  • Sign the IRB-approved ICF, Photographic Release Form and the Authorization for Use and release of Health and Research Study Information (HIPAA) form prior to any study- related procedures being performed.

Exclusion criteria

  • Female subjects that are pregnant, breast-feeding or of childbearing potential and not practicing reliable birth control
  • Known hypersensitivity/allergy to any component of the study devices
  • Clinically significant active skin disease within 6 months
  • Has a history of or currently has an auto-immune disease.

Treatment and study plan

RHA 3

Device

Investigational Product, RHA® 3 is a viscoelastic, sterile, non-pyrogenic, clear, colorless, homogenous, and biodegradable gel implant. It is formulated with sodium hyaluronic acid (NaHA) at a concentration of 23 mg/g obtained from bacterial fermentation using the Streptococcus equi bacterial strained, crosslinked with 1,4 butanediol diglycidyl ether (BDDE) and reconstituted in a physiological buffer (pH 7.3). RHA® 3 also contains 0.3% lidocaine hydrochloride to reduce pain on injection.

Restylane-L

Device

Comparator Product, Restylane-L is a gel of hyaluronic acid generated by Streptococcus species of bacteria, chemically crosslinked with BDDE, stabilized and suspended in phosphate buffered saline at pH=7 and concentration of 20 mg/mL with 0.3% lidocaine.

Primary outcomes

  1. Change in TLFS Score (Teoxane Lip Fullness Scale) Between Baseline and Week 12 After Last Treatment of RHA®3 Versus Control Device, as Assessed by the BLE

    Time frame: Week 12 after last treatment

    A change in the TLFS ≥1 grade compared to pre-treatment will be considered clinically meaningful.

    The TLFS is a validated 5-point scale for assessing lip augmentation. Possible scores range from 1 (Very Thin) to 5 (Very Full).

    Change = (Week 12 - Baseline score).

Secondary outcomes

  1. Change From Baseline in TLFS Score as Assessed by the BLE at Visit 5 (Weeks 24 After Last Treatment), 6 (Weeks 36 After Last Treatment), 7 (Week 52 After Last Treatment) if Applicable, and Re-treatment (4 Weeks After Re-treatment)

    Time frame: Weeks 36 and 52 after last treatment, week 4 after re-treatment

    A change in the TLFS ≥1 grade compared to pre-treatment will be considered clinically meaningful.

    The TLFS is a validated 5-point static scale for assessing lip augmentation. Possible scores range from 1 (Very Thin) to 5 (Very Full).

  2. Responder Rate Calculated Using TLFS Assessed by the BLE

    Time frame: Weeks 12, 36, 52 after last treatment, week 4 after re-treatment

    A responder will be defined as a subject who has a ≥1 grade improvement on the TLFS.

    The TLFS is a validated 5-point static scale for assessing lip augmentation. Possible scores range from 1 (Very Thin) to 5 (Very Full).

  3. Number of Subjects "Satisfied" or "Very Satisfied" With Study Treatment Using the Subject Satisfaction Scale at Weeks 12, 36, 52 After Last Treatment and 4 Weeks After Re-treatment.

    Time frame: Weeks 12, 36, 52 after last treatment and 4 week after re-treatment.

    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).

  4. Subject's Perception of Treatment Effectiveness as Per the "Satisfaction With Lips" FACE-Q | Aesthetics© Scale Questionnaire at Weeks 12, 36, 52 After Last Treatment and 4 Week After Re-treatment.

    Time frame: Change from Baseline at Weeks 12, 36, 52 after last treatment and 4 week after re-treatment.

    The FACE-Q measures the experience and outcomes of aesthetic facial procedures from the patient's perspective.

    The FACE-Q questionnaire is composed of 10 questions with a score linked to answers (1 being "Very Dissatisfied" and 4 being "Very Satisfied").

    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 lips in mind, in the past week, how satisfied or dissatisfied have been with:", and will provide response.

    To calculate the FACE-Q, outcomes from all 10 questions were pooled, data were transformed so that higher scores reflected a superior (positive) outcome, and adapted to a scale of 100 units (i.e. worst/lowest score = 0, best/highest score = 100).

  5. Subject's Perception of Treatment Effectiveness as Per the "Satisfaction With Outcome" FACE-Q | Aesthetics© Scale Questionnaire at Weeks 12, 36, 52 After Last Treatment and 4 Week After Re-treatment.

    Time frame: Weeks 12, 36, 52 after last treatment and 4 week after re-treatment.

    The FACE-Q measures the experience and outcomes of aesthetic facial procedures from the patient's perspective.

    The FACE-Q questionnaire is composed of 6 questions with a score linked to answers (1 being "Definitely disagree" and 4 being "Definitely agree").

    The subject will be instructed as follows: "We would like to know how you feel about your most recent procedure. For each question, select only one answer. Please indicate how much you agree or disagree with each statement:", and will provide response.

    To calculate the FACE-Q, outcomes from all 16questions were pooled, data were transformed so that higher scores reflected a superior (positive) outcome, and adapted to a scale of 100 units (i.e. worst/lowest score = 0, best/highest score = 100).

  6. Number of Subjects Scored Either "Much Improved" or "Improved" on Global Aesthetic Improvement (GAI) Scale by the BLE.

    Time frame: Weeks 12, 36, 52 after last treatment, and 4 weeks after re-treatment

    The Global Aesthetic Improvement (GAI) is a subjective, balanced, 5-point dynamic scale assessing cosmetic improvement.

    Possible scores range from "much improved", "improved", "no change", "worse", to "much worse". The GAI will be assessed using the baseline photograph.

Sponsors and collaborators

Lead sponsor

Teoxane SA

Industry

Registry information

Official study title

A Controlled, Randomized, Double-blinded, Between-subject, Multicenter, Prospective Clinical Study to Evaluate Safety and Effectiveness of RHA® 3 Versus Restylane-L® for Lip Augmentation

Important dates

Study start
2020
Primary completion
2022
Study completion
2022
First posted
Sep 7, 2020
Registry last updated
Feb 3, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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