Can a glowing iPad screen help reset your body clock?
NCT ID NCT07744711
First seen Aug 04, 2026 · Last updated Aug 05, 2026 · Updated 1 time
Summary
This study looks at how adults use an iPad-based app that delivers light to support the body's internal clock, which controls daily rhythms in sleep and alertness. Participants use the app for up to eight weeks while doing normal activities like reading or watching videos, and answer short questions about sleep and their experience. Some may also choose to wear a device to track movement and light, or give samples for optional biomarker analysis. The goal is to understand usage patterns and user feedback, not to test whether the app treats any medical condition.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- iPad-based light-delivery app (Circadian OS / KairOS)
- What this could lead to
- If successful, this could help refine light-based tools to support daily rhythms in sleep and alertness for people who don't get enough consistent bright light.
- What could go wrong
- This is a small, early observational study, not a treatment trial. It won't prove the app improves health, and results may not apply beyond the specific group of participants.
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
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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
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2026
- Expected to finish
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Jun 2028
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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: * Adult 18 years of age or older * Able to read, understand, and provide written informed consent in English * Has access to a compatible iPad capable of running the study app for the duration of the exposure period, or is willing to use a Sponsor-supplied iPad * U.S. resident, able to be in the NYC metropolitan area for the study * Member of the Sponsor's network (friends, family, advisors, investors, employees, or contractors) * If opting in to the biomarker sub-study: weighs at least 110 lb (50 kg), and meets standard venipuncture eligibility on the day of collection Exclusion Criteria: * Diagnosed bipolar disorder, or history of light-induced manic or hypomanic episodes * Pregnant, attempting to become pregnant, or breastfeeding * Diagnosed photosensitivity disorder, retinal disease, or use of medications known to cause significant photosensitivity, at investigator discretion based on disclosed medications * Currently using prescription light therapy, or actively enrolled in another light-related research study * Unable to consent for themselves (participants requiring enrollment by a legally authorized representative are not eligible) * Biomarker sub-study only: acutely unwell, febrile, or reporting acute infectious symptoms on the study day * Biomarker sub-study only: known bleeding diathesis, anticoagulant use other than low-dose aspirin, severe needle phobia, or whole-blood or plasma donation within the prior two weeks * Biomarker sub-study only: member of the study or laboratory team who would otherwise process their own sample * Any condition that, in the judgment of the investigator or attending phlebotomist or nurse, would make participation unsafe
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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
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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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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SOSV
New York, New York, 10001, United States
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