Clinical trial Recruiting at 1 site Interventional Ages 18 to 40

Examining skin responses to UV light in day and night shift workers

Official title: Pilot Study on DNA Repair Activity in the Skin of Day and Night Shift Workers

Run by Wright State University · NCT04122456 · Data updated 2026-11-12

This study tests how the skin of night shift workers reacts to UV light compared to day shift workers to see if their different schedules affect skin health and cancer risk.

Quick facts

Study typeInterventional
Ages18 Years to 40 Years
SexAll
Enrollment48 (estimated)
SponsorWright State University
Academic / other
Drugs / interventionsradiation
Locations1 site (Fairborn, Ohio)
StatusRecruiting
StartedDecember 7, 2022
Main results expectedDecember 2027
Study endsDecember 2027
Registry record updatedJuly 17, 2026
Trial IDNCT04122456 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are fair-skinned individuals aged 18 to 40 who work primarily during the day or night shifts.

Probably not a fit

Patients with known photosensitivity, diabetes, or a history of skin cancers may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates how the skin of night shift workers reacts to artificial sunlight, specifically ultraviolet B (UVB) radiation, compared to day shift workers. Participants will undergo skin biopsies, which will then be exposed to UVB in a laboratory setting to measure the skin's response. The research aims to understand the potential differences in DNA repair activity in the skin based on work schedules. This could provide insights into skin cancer risks associated with different work shifts.

Why it matters

Potential benefit: If successful, this study could lead to better understanding and prevention strategies for skin cancer in shift workers.

How similar studies have gone: While there is limited information on similar studies, the investigation of UVB responses in different populations is a relevant area of research.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male/Female
* Fair skin (Fitzpatrick types I and II)
* Age 18 to 40
* Able to comprehend procedures/risks
* Primarily work and are awake during normal daylight hours (6 am to 6 pm), or primarily work and are awake during night shifts hours (between the hours of 6 pm and 6 am) or may work a mixture of these shifts over the past 3 months. Rotating shifts will be categorized based on the majority of hours worked on average during the last 3 months. Able to fill out a 3-month calendar of work schedule.

Exclusion Criteria:

* Known photosensitivity
* Currently on photosensitizing medications
* Diabetes Mellitus
* On any hormonal agents (e.g., birth control pills)
* History of abnormal scarring
* History of skin infections
* History of skin cancers
* History of sleep disorders such as sleep apnea or insomnia
* Known allergy to lidocaine local anesthetic
* Pregnancy or nursing
* Other serious health issues

Where it's running

  • Wright State Physicians
    Fairborn, Ohio, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.