Light on the brain: could a headset improve memory and mood?
NCT ID NCT07445945
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether shining red and near-infrared light on the forehead, inside the nose, and on the neck can improve memory and mood in older adults who feel their thinking is slipping. Eighty participants will use a light device at home twice daily for five weeks. Researchers will measure changes in mood, thinking, brain activity, and gut bacteria before and after the treatment.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- photobiomodulation (red and near-infrared light)
- What this could lead to
- If it works, this could point toward a safe, non-invasive way to ease memory concerns and low mood in older adults without using drugs.
- What could go wrong
- This is a small, early-stage proof-of-concept study with no blinding or placebo control for all groups. The effects may be small or not last, and the device requires daily use at home.
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 80 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jun 2026
An estimate. Start dates often move.
- Expected to finish
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Jul 2028
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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50 to 75 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.
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: * Affirmative responses to two questions on a self-report questionnaire: "Do you feel your memory is becoming worse?" "If so, are you concerned?" Exclusion Criteria: * Presence of clinically diagnosed dementia, mild cognitive impairment, depression, post-traumatic stress disorder, obsessive-compulsive disorder, eating disorder(s), schizophrenia, or other psychiatric disorders. * History of a manic, hypomanic, or mixed depressive episode. * Treatment with electroconvulsive therapy, intravenous and/or intranasal ketamine in the 6-weeks prior to study enrolment. * History of substance-use disorder in the past 12 months. * Presence of current alcohol-use disorder. * A positive urine toxicology screen for non-prescribed substance use. * A positive pregnancy test at screening. * A history of major medical or neurological illness. * A history of traumatic brain injury, stroke, seizures, or previous brain surgery. * Current use of anti-coagulants. * Contraindications to magnetic resonance imaging (MRI) scanning. * Being currently involved in other intervention studies.
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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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Rotman Research Institute
Toronto, Ontario, M6A 2E1, Canada
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Other studies related to the condition(s) this trial covers.
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