ClinicalTrials.gg
Status unknownNCT04308421Updated Mar 16, 2020

Efficacy of Red Light in the Treatment of Pigmentary Disorders

An interventional study of Red light in Melasma, Lichen Planus Pigmentosus and Vitiligo, sponsored by University of British Columbia. Status unknown at 1 site in Canada. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-03-16.

Sponsored by University of British Columbia · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Mar 2020), so the status shown — last known as Recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
45
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study 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.

Read the detailed description

This will be a participant and evaluator blinded trial with random allocation of one side of the face or affected area to treatment and the contralateral side as control. Random allocation of the treatment side will be performed using randomization software. Participants will be treated twice a week for 12 weeks with low irradiation 650 nm +/- 5 nm red light and followed up 4 weeks after completion of treatment. 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.

02

Conditions studied

  • Melasma
  • Lichen Planus Pigmentosus
  • Vitiligo

Keywords

  • Melasma
  • Lichen planus pigmentosus
  • Vitiligo
  • Low level laser therapy
  • Photobiomodulation
  • Red light
  • Pigmentation disorders
03

In context

Melanosis

159 studies on the registry are indexed under Melanosis; 42 are open to participants now.

This study's planned enrollment of 45 is above the median of 40 across 149 interventional studies indexed under Melanosis.

Browse Melanosis studies →

Lead sponsor

University of British Columbia is the lead sponsor of 1,335 studies on the registry; 255 are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 1 (17%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 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

Exclusion criteria

Exclusion Criteria:

  • Known photosensitivity disorder
  • Unable to attend follow up appointments or twice weekly treatments
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Double (Participant, Outcomes assessor)
Enrollment
45 participants (estimated)

Study arms

  • Experimental
    Low level red light/laser

    Patients 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

    Device: Red light

  • No intervention
    Control side

    An affected area on the contralateral side of the face or body or within a single patch will not be treated

Interventions

  • DeviceRed light

    Low irradiation 650 nm +/- 5 nm red light

    Also known as: Low level laser therapy

06

What researchers measure

Primary outcomes

  1. 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

    Time frame: Week 0, week 4, week 8, week 12 and at follow up at week 16

  2. 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

    Time frame: Week 0, week 4, week 8, week 12 and at follow up at week 16

  3. 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

    Time frame: Week 0, week 4, week 8, week 12 and at follow up at week 16

Secondary outcomes

  1. Colorimeter measurements

    Change in average L\*a\*b color system will be measured for background skin and the area of hyperpigmentation or depigmentation from baseline.

    Time frame: Week 0, week 4, week 8, week 12 and at follow up at week 16

Other outcomes

  1. Physician Global Assessment

    Physician global assessment at the end of treatment at follow up will be assessed to identify change in pigmentation compared to baseline photographs.

    Time frame: Week 16

  2. Patient global assessment

    Time frame: Week 16

07

Study locations

1 of 1 sites recruiting
  • The Skin Care Centre, Vancouver General Hospital
    Vancouver, British Columbia V5Z 4E8, Canada
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Mar 2020 (actual). Primary completion is estimated for Sep 2020, 6 months after the start.

Of 34 non-industry interventional studies with no phase under Melanosis, half reached primary completion within 9 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 19. This study's planned 6 months is below that.

Counting every sponsor, half of 49 studies reached it within 9 months; a quarter within 5 and three quarters within 19.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 25, 2020
First posted
Mar 16, 2020
StartActual
Mar 1, 2020
Primary completionEst.
Sep 2020
CompletionEst.
Sep 2020
Last update
Mar 16, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 16, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04308421
Responsible party
Sunil Kalia (Principal Investigator, University of British Columbia) — Principal investigator
First posted
Mar 16, 2020
Start date
Mar 1, 2020
Primary completion
Sep 2020 (estimated)
Completion
Sep 2020 (estimated)
Last update
Mar 16, 2020

Study contacts

Sunil Kalia, MD MHSc FRCPC
Contact
sunil.kalia@ubc.ca
+1 604-875-4747

Oversight

FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Mar 2020. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion