Study Stopped
Due to implementation challenges, we categorized this study as a pilot and ended data collection, intending to adapt methods for future trials. Although the initial sample size was 54, data from 21 participants were analyzed.
Treatment of Melasma With Yellow Light Compared to Tranexamic Acid
Photobiomodulation With Yellow Light in the Treatment of Melasma: Clinical Trial, Randomized, Controlled, Double Blind.
1 other identifier
interventional
21
1 country
2
Brief Summary
Photobiomodulation (PBM) has been suggested as an alternative treatment for Melasma, showed by the in vitro data, inhibition of the tyrosinase enzyme and reduction in the pigment content by autophagy. This treatment compares with tranexamic acid, where it acts on similar pathways of melanogenesis. A total of 54 female participants, phototype scale Fitzpatrick ll - lV will be recruited which will be distributed among two groups: Light + placebo Home Care cosmetic product and Light sham + Home Care cosmetic product with tranexamic acid. The treatments will consist of 90 days, with application of photobiomodulation (PBM) once a week and application of the cosmetic product twice a day.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started May 2023
Shorter than P25 for not_applicable
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 8, 2022
CompletedFirst Posted
Study publicly available on registry
April 14, 2022
CompletedStudy Start
First participant enrolled
May 1, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 30, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
October 30, 2023
CompletedOctober 21, 2024
October 1, 2024
6 months
April 8, 2022
October 17, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
MASI (Melasma Area and Severity Index)
Determines the affected area and the severity of Melasma, through visual analysis of the affected site and attribution of scores
Before treatment (week 0).
MASI (Melasma Area and Severity Index)
Determines the affected area and the severity of Melasma, through visual analysis of the affected site and attribution of scores
Half treatment (Week 6)
MASI (Melasma Area and Severity Index)
Determines the affected area and the severity of Melasma, through visual analysis of the affected site and attribution of scores
After the treatments (week 12).
Secondary Outcomes (5)
Corneomelametry
Before (week 0), at half (week 6) and after treatment (week 12).
Photography
Before (week 0), at half (week 6) and after treatment (week 12).
Final global diagnosis of the skin.
Before (week 0), at half (week 6) and after treatment (week 12).
The MELASQoL questionnaire, (Melasma Quality of Life Scale)
Before (week 0), at half (week 6) and after treatment (week 12).
Adverse Effects
At half (week 6) and after treatment (week 12).
Study Arms (2)
Photobiomodulation (PBM) with placebo cosmetic treatment.
EXPERIMENTALParticipants will receive the intervention with PBM using amber light (DMC E-Light ABR), 20 J/cm² and will also receive a product for daily home topical use containing only the cosmetic base without active.
Photobiomodulation (PBM) sham with 5% liposomal tranexamic acid cosmetic product
ACTIVE COMPARATORParticipants will receive the simulated intervention with PBM using amber light (DMC E-Light ABR) and will also receive a product for topical home use containing 5% liposomal tranexamic acid.
Interventions
Participants will have their face sanitized with micellar water (a cosmetic product for cleaning and makeup remover), followed by cleaning with soap. Then, the eyes will be protected with gauze, proper glasses and a black towel on top, a headset with relaxation music will also be placed and then the face will receive the treatment with yellow light. After the session the face will receive sunscreen. A placebo cosmetic will be given to the participant to be applied twice a day and daily sunscreen.
Participants will have their face sanitized with micellar water. Then, the eyes will be protected with gauze, proper glasses and a black towel on top, a headset with relaxation music will also be placed and then the face will receive the treatment with yellow light sham. The person responsible for applying the PBM will simulate the irradiations by positioning the device in the same places described for the PBM group, however, the equipment will be kept off. After the session the face will receive sunscreen. Will be delivered to patients, liposomal tranexamic acid with use 2 x a day home care and daily sunscreen.
Eligibility Criteria
You may qualify if:
- Feminine gender
- Age between 35 to 50 years
- Phototypes l to lV of the Fitzpatrick scale
- Facial melasma
- Healthy participants without clinical skin comorbidities (psoriasis, vitiligo, rosacea and dermatoses)
You may not qualify if:
- Pre-existing systemic diseases, autoimmune diseases, digestive system disease
- Polycystic ovary
- Isotretinoin drug use (less than 6 months)
- Sequelae of an accident on the face that interferes with the facial treatment
- Undertakes any treatment for topical or oral Melasma at the time of the research or less than 3 months ago
- Uses retinoic acid, vitamin A derivatives, photosensitizing drugs
- Skin pathologies on the face
- Glaucoma, cataract, cancer patients, pregnant women, lactating women
- Uses oral or intrauterine contraceptives (IUD)
- Thyroid disorders
- Use of hormone replacement
- Bacterial, viral and fungal infections
- Tendency to form keloids
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
Galache Clinic
São Caetano do Sul, São Paulo, 09550050, Brazil
Universidade Nove de Julho
São Paulo, 01504001, Brazil
Related Publications (2)
Galache TR, Galache M, Barros RTB, Bezerra CDDS, Sena MM, Pavani C. Amber LED photobiomodulation versus tranexamic acid for the treatment of melasma: randomized controlled double-blind pilot trial. Lasers Med Sci. 2025 Jul 12;40(1):313. doi: 10.1007/s10103-025-04567-9.
PMID: 40650752DERIVEDGalache TR, Galache M, Sena MM, Pavani C. Amber photobiomodulation versus tranexamic acid for the treatment of melasma: protocol for a double-blind, randomised controlled trial. BMJ Open. 2023 Jul 21;13(7):e073568. doi: 10.1136/bmjopen-2023-073568.
PMID: 37479524DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Thais Rodrigues Galache, MSc Fellow
University of Nove de Julho
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Masking Details
- Neither the participants involved in the study, nor the outcomes assessor will be aware of the groups formed, as well as the treatments received.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Clinical Professor
Study Record Dates
First Submitted
April 8, 2022
First Posted
April 14, 2022
Study Start
May 1, 2023
Primary Completion
October 30, 2023
Study Completion
October 30, 2023
Last Updated
October 21, 2024
Record last verified: 2024-10
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
- Time Frame
- Beginning 3 months following article publication
- Access Criteria
- Researchers who provide a methodologically sound proposal.
Individual participant data that underlie the results reported in this article, after deidentification (text, tables, figures, and appendices) will be shared. Researchers who provide a methodologically sound proposal will have access. Proposals should be directed to chrispavani@gmail.com To gain access, data requestors will need to sign a data access agreement.