This study evaluates the safety and effectiveness of the UltraClear® 2,910 nm fractional ablative fiber laser for improving skin laxity and tissue lifting in the lower face, submental, and neck areas. Up to 50 adults ages 35-65 will receive two laser treatments approximately 7 weeks apart at two clinical sites. Outcomes will be assessed approximately 90 days after the second treatment using photographic analysis and investigator- and participant-reported improvement scales.
Fitzpatrick skin types I-III participants with Fitzpatrick Skin Types IV-VI may be enrolled only at the investigator's discretion, based on individualized risk assessment documenting skin tone-related risk of post-inflammatory hyperpigmentation, wound healing history, and prior response to ablative or energy-based treatments. Risk assessment documentation must be retained in the participant's study file. Male or female.
Participants must be between 35 and 65 years of age.
Participants must have the ability to receive two lower face and full neck resurfacing laser treatments with desire for improvement in lifting and skin laxity.
Participants must read, understand, and sign the Informed Consent Form.
Participants must not have active localized or systemic infections.
Participants must not have a compromised ability for wound healing, such as: malnutrition, steroid use, history of collagen vascular disease (e.g., lupus, scleroderma, history of keloid scar formation), atopic dermatitis or immunologic abnormalities such as vitiligo.
Participants must not be current smoker or have history of regular tobacco or nicotine use within 12 months prior to enrollment.
Participants must not have had treatments with systemic steroids or systemic retinoids in the 4-months prior to enrollment.
Single group
2910 nm fiber laser (UltraClear®)
DeviceUltraClear® is a 2,910 nm fractional ablative erbium-doped fluoride glass fiber laser (Acclaro), FDA 510(k) cleared (K210847, K233803) for dermatological procedures requiring coagulation, resurfacing, and ablation of soft tissue. In this study, it is applied to the lower face, submental region, and neck using fractional ablative resurfacing, laser-coring, and full ablative resurfacing configurations, with mode and parameters selected by the investigator based on baseline anatomy and tissue laxity.
Quantitative 2D Photographic Analysis:
Proportion of participants achieving a ≥20 mm² reduction in submental area post treatment, measured by a blinded independent analyst using a five-point landmark methodology applied to standardized 2D photographs. The study-level responder rate must achieve statistical significance (p \< 0.05).
Blinded Photographic Review
Proportion of participants for whom ≥2 of 3 Blinded Independent Photographic Reviewers (BIPRs) correctly identify post-treatment improvement from paired baseline and Visit 6 photographs of the submental and neck regions. Pre-specified responder threshold: ≥80% of evaluable participants.
Investigator Global Aesthetic Improvement Scale (iGAIS)
Range: 0-4 Directionality: higher score equates to better outcome (0= Worse, 1= No change, 2= Improved, 3= Much improved, 4= Very much improved). Proportion with any improvement from baseline.
Investigator Merz Jawline Grading Scale (MJGS)
Range: 0-4 Directionality: lower score equates to better outcome (less sagging) (0= No sagging, 1= Mild sagging, 2= Moderate sagging, 3= Severe sagging, 4= Very severe sagging). Change from baseline will be assessed.
Participant Global Aesthetic Improvement Scale (sGAIS)
Range: 0-4 Directionality: higher score equates to better outcome (0= Worse, 1= No change, 2= Improved, 3= Much improved, 4= Very much improved). Proportion with any improvement from baseline.
FACE-Q™ Satisfaction with Lower Face and Jawline (Rasch-transformed score)
Range: 1-4, Directionality: higher score equates to increased satisfaction (1= Very dissatisfied, 2= Somewhat dissatisfied, 3= Somewhat satisfied, 4= Very satisfied). Change from baseline will be assessed.
Incidence of Treatment Emergent Adverse Events and Discomfort Scores (Safety and Tolerability)
Participant-rated discomfort via visual analog scale (VAS) will be completed following each 2910 nm fiber laser treatment. Range: 0-10 Directionality: lower score equates to less discomfort (ie. 0= No pain, 5= Moderate Pain, 10 = Worst Pain). Evaluations of Post Treatment Responses \& Adverse Events to be completed by Investigator immediately post-treatment and at at each follow-up visit. Additionally device- and procedure-related adverse as well as unrelated event monitoring to be completed throughout the study.
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