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Bright light at breakfast may fight fibromyalgia fatigue and pain

NCT ID NCT06567886

Symptom relief Sponsor: University of Michigan Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether using a bright light device for one hour each morning, combined with a consistent sleep schedule, can improve symptoms of fibromyalgia—a condition causing widespread pain and fatigue. Researchers at the University of Michigan are recruiting 390 adults with fibromyalgia to try this at-home approach and track changes in pain, function, and quality of life over time.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Light therapy device (Re-Timer)
What this could lead to
If it works, this could offer a simple, drug-free way to reduce pain and improve daily function for people with fibromyalgia.
What could go wrong
This is an early-stage study testing a behavioral approach, not a proven treatment. Results may show little to no benefit, and individual responses can vary.

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 390 people

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

Started

Sep 2024

Expected to finish

Mar 2029

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

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Meets 2016 revised diagnostic criteria for fibromyalgia (FM) 2. Has access to video conferencing (including web cameras and audio) and a private space for the remote study visits. Exclusion Criteria: 1. Significant chronic disease 2. Severe hearing or memory problems 3. Pending medical leave applications at workplace 4. Current pregnancy, breastfeeding, or actively trying to get pregnant 5. Night work or travel outside the eastern time zone within 1 month of the study 6. Other research participation 7. Frequent number of special events during study period (weddings, concerts, exams, etc).

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Conditions

The condition(s) this trial relates to.

fibromyalgia

As listed by the trial registrant

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

Fibromyalgia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • University of Michigan

    RECRUITING

    Ann Arbor, Michigan, 48105, United States

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