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Efficacy of Combined 1927nm Thulium Fiber Laser and Supramolecular Salicylic Acid in Photoaging Treatment

NCT06925035 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 36

Last updated 2025-04-13

No results posted yet for this study

Summary

Purpose: 1927nm fractional thulium fiber laser (TFL) has been shown to be effective in improving skin appearance by reducing pigmentation and loss of elasticity caused by photoaging. Supramolecular salicylic acid (SSA) has been utilized for chemical peeling with rejuvenation effect. This study aims to evaluate the effectiveness and safety of combined TFL and SSA treatment for photoaging.

Methods: Thirty-six patients with moderate-to-severe photoaging were enrolled and the two sides of the participants' face were randomly assigned to receive 30% SSA combined with TFL or TFL monotherapy. TFL was administered to both sides of the face on four occasions at four-week intervals, while the side receiving combined treatment additionally underwent eight chemical peels of 30% SSA fortnightly, supplemented by daily applications of 2% SSA. For the TFL-alone side, an equivalent dose of a placebo preparation was applied. The photographs, photoaging scores, melanin index (MI), erythema index (EI), skin hydration, trans-epidermal water loss (TEWL), dermal thickness, elasticity index, and skin rebound time were assessed.

Conditions

  • Photo-aged Skin
  • Laser

Interventions

DEVICE

1927nm fractional thulium fiber laser(TFL)

Prior to each session, Compound Lidocaine Cream (Beijing Ziguang Medication Manufacture Corporation Ltd.) was administered topically to the participants' faces for a duration of 30-40 minutes. Following sterilization with alcohol, the entire facial area was treated with a 1927 nm fractional thulium fiber laser (TFL) (WONTECH, Lavieen, South Korea). TFL parameters included a pulse energy of 8-10 mJ, an output power of 10 W, and a pulse spacing of 0.8 mm, ensuring comprehensive coverage of photodamaged regions.

DRUG

supramolecular salicylic acid(SSA)

30% SSA (SSA and placebo are provided by Broda ,Shanghai Rui Zhi Medicine Technology, Shanghai, China.) or placebo(the base material of 30% SSA) were randomly assigned to be applied on one side of the face immediately after completion of the 1927nm TFL treatment. The 30% SSA was maintained on facial skin until reaching the clinical endpoint, manifested as mild erythema and/or a characteristic frost-like epidermal whitening. Additionally, the combination therapy side of the subjects was treated with one session of 30% SSA biweekly and 2% SSA daily over a period of 16 weeks.

Sponsors & Collaborators

  • Second Affiliated Hospital of Xi'an Jiaotong University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
40 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-06-01
Primary Completion
2023-12-31
Completion
2023-12-31

Countries

  • China

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06925035 on ClinicalTrials.gov