Light therapy and sleep coaching may cut hospital stays for bipolar patients
NCT ID NCT04917419
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether light therapy and a short sleep education program can improve sleep and daily rhythms in people with bipolar disorder. Researchers will track how many days participants spend in the hospital. The goal is to find a simple, nurse-led way to help manage sleep problems and reduce severe mood episodes.
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 170 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2022
- Expected to finish
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Dec 2026
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.
- Ages
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18 to 65 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Main inclusion Criteria: * Bipolar disorder (type 1 and 2 according to DSM V) * Mood Disorder Questionnaire MDQ ˂ 7 * Sleeping and Circadian Rhythms Disorders * Under treatment Main exclusion Criteria: * No addiction except for tobacco * Narcolepsy * Sleep Apnea * Psychiatric comorbidities * Suicidal ideation
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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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Centre Hospitalier Henri Laborit
RECRUITINGPoitiers, 86021, France
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Other studies related to the condition(s) this trial covers.
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