Efficacy of Red Light in the Treatment of Pigmentary Disorders
A Prospective, Double-blind, Split-body, Randomized Controlled Trial to Assess the Efficacy of Low Level Laser Therapy for Pigmentary Disorders
1 other identifier
interventional
45
1 country
1
Brief Summary
Pigmentary disorders such as melasma, lichen planus pigmentosus and vitiligo can significantly affect patients' quality of life. Treatment responses are usually slow and typically have limited efficacy. In recent years, low level laser therapy has been an emerging treatment modality for androgenetic alopecia, acne, wound healing and photorejuvenation. This is a prospective, double-blind, split-body, randomized controlled trial assessing the efficacy of low level laser therapy with red light for pigmentary disorders such as, melasma, lichen planus pigmentosus and vitiligo.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Mar 2020
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 25, 2020
CompletedStudy Start
First participant enrolled
March 1, 2020
CompletedFirst Posted
Study publicly available on registry
March 16, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2020
CompletedMarch 16, 2020
March 1, 2020
6 months
February 25, 2020
March 11, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Change in Modified-MASI (Melasma Area and Severity Index) compared to baseline for melasma and lichen planus pigmentosus
A trained blinded evaluator will assess clinical outcomes on week 4, week 8, week 12 and at follow up at week 16, using validated scores to assess change from baseline
Week 0, week 4, week 8, week 12 and at follow up at week 16
Change in DPASI (Dermal Pigmentation Area and Severity score) compared to baseline for lichen planus pigmentosus
A trained blinded evaluator will assess clinical outcomes on week 4, week 8, week 12 and at follow up at week 16, using validated scores to assess change from baseline
Week 0, week 4, week 8, week 12 and at follow up at week 16
Change in VASI (Vitiligo Area Scoring Index) compared to baseline for vitiligo
A trained blinded evaluator will assess clinical outcomes on week 4, week 8, week 12 and at follow up at week 16, using validated scores to assess change from baseline
Week 0, week 4, week 8, week 12 and at follow up at week 16
Secondary Outcomes (1)
Colorimeter measurements
Week 0, week 4, week 8, week 12 and at follow up at week 16
Other Outcomes (2)
Physician Global Assessment
Week 16
Patient global assessment
Week 16
Study Arms (2)
Low level red light/laser
EXPERIMENTALPatients will be treated twice a week for 12 weeks with low irradiation 650 nm +/- 5 nm red light on one randomly allocated side of the face or body
Control side
NO INTERVENTIONAn affected area on the contralateral side of the face or body or within a single patch will not be treated
Interventions
Low irradiation 650 nm +/- 5 nm red light
Eligibility Criteria
You may qualify if:
- Participants must be 18 years or older.
- Participants should be competent to give fully informed consent by themselves
- Should have received a diagnosis of either melasma, lichen planus pigmentosus or vitiligo either clinically or pathologically and have bilateral facial hyperpigmentation/depigmentation or bilateral similar sized depigmented/hyperpigmented patches or a single patch larger than 25 cm2.
- Participants must stop receiving topical treatments or phototherapy 4 weeks prior to commencing the study
You may not qualify if:
- Known photosensitivity disorder
- Unable to attend follow up appointments or twice weekly treatments
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
The Skin Care Centre, Vancouver General Hospital
Vancouver, British Columbia, V5Z 4E8, Canada
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
February 25, 2020
First Posted
March 16, 2020
Study Start
March 1, 2020
Primary Completion
September 1, 2020
Study Completion
September 1, 2020
Last Updated
March 16, 2020
Record last verified: 2020-03
Data Sharing
- IPD Sharing
- Will not share