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Shedding light on skin: new study aims to perfect how we test visible light effects

NCT ID NCT05964907

Knowledge-focused Sponsor: Henry Ford Health System Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how visible light (and some UVA1) affects the skin of 14 healthy adults with different skin tones. Researchers will measure redness and tanning right after exposure and check skin samples for longer-term changes. The goal is to make light testing more accurate and better understand how light affects all skin types.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 14 people

The number the study aims to enrol. It can still change while the study runs.

Started

Oct 2021

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

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.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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: * Healthy individuals age 18 and older * Fitzpatrick skin phototype (SPT) I-VI, 7 with SPT I-III and 7 with SPT IV-VI, with normal healthy skin * Able to understand the requirements of the study and its associated risks * Able to complete and sign a consent form * Willing and able to refrain from any medications or herbal supplements during the duration of the study, unless permitted by the investigator * Agrees to refrain from using any new topical skin care products, laundry detergents, or fragrances while participating in the study * Has not had excessive sun exposure for 7 days prior to enrollment in the study Exclusion Criteria: * Recent history of vitiligo, melasma, and other disorders of pigmentation with the exception of post-inflammatory hyperpigmentation * History of relevant skin conditions such as atopic dermatitis, eczema, or sunburn on any part of the body * History of photodermatoses or photosensitivity disorders * History of melanoma or non-melanoma skin cancers * Use of tanning parlors or exposure of the irradiated sites to sun light during the duration of the study * Use of topical or systemic treatment that is likely to interfere with assessment, study results, or pose safety concerns * Subjects with a tendency to bleed excessively * Known allergies to anesthetics (lidocaine) or anaphylaxis treatment (epinephrine) * History of hypertrophic scarring or keloid formation * Use of any photosensitizing medication within the visible light range or additional medication at the discretion of the investigator \[examples include - but not limited to - thiazide diuretics, regular use of NSAIDs, hydroxychloroquine, or voriconazole * A woman who is lactating, pregnant, or planning to become pregnant

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthy

Contacts and locations

Locations

  • Henry Ford Medical Center

    Detroit, Michigan, 48202, United States

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