Can your phone's camera measure psoriasis redness as well as a doctor?
NCT ID NCT07494396
First seen Jun 27, 2026 · Last updated Aug 06, 2026 · Updated 2 times
Summary
This study aims to develop and test an AI system that uses smartphone photos with a color card to measure redness in psoriasis lesions. Fifty adults with psoriasis will take weekly photos at home and have clinic photos taken. The goal is to see if this simple, low-cost method matches the accuracy of a standard colorimeter device.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Nov 2026
An estimate. Start dates often move.
- Expected to finish
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Apr 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
A dermatology clinic in Srinagarind Hospital
- Ages
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18 to 100 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adults aged ≥18 years * Diagnosed with psoriasis by a dermatologist * Presence of at least five clearly photographable lesions * Willing and able to take photographs using a smartphone with both a standard color calibration card and a study-specific color card at home weekly, and submit images via Line or email * Willing to have clinical photographs taken at baseline and at a follow-up visit * Provides written informed consent to participate in the study Exclusion Criteria: * Presence of skin infection or other lesions that may interfere with color assessment (e.g., tattoos) * Use of self-tanning products or substances that alter skin color * Inability to perform photography or comply with study procedures
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Khon Kaen University
Khon Kaen, Changwat Khon Kaen, 40002, Thailand
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Other studies related to the condition(s) this trial covers.
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- Can monthly selfies and symptom logs reveal how chronic skin diseases flare and settle?
- Can we predict the path of chronic skin disease?
- Can a new pill tame psoriasis? early safety trial begins