Could a common sleep aid curb suicide risk? small trial aims to find out
NCT ID NCT06854224
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This phase 2 trial tests whether suvorexant (Belsomra), a drug approved for insomnia, is safe and tolerable for veterans with major depression who are at high risk for suicide. Thirty veterans will take the drug nightly for four weeks, with in-person and remote check-ins. The study focuses on safety and feasibility, not yet on whether it actually reduces suicide risk.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Suvorexant (Belsomra), a sleep medication that blocks orexin in the brain
- What this could lead to
- If it works, this could point toward a new way to reduce suicide risk by targeting brain chemistry linked to impulsivity and stress.
- What could go wrong
- This is a very early, small proof-of-concept study with only 30 veterans, so results may not apply to others. The drug is being tested for a new purpose, and side effects or lack of effect are possible.
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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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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Jul 2027
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 70 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: * Veteran * At least 18 years of age (up to 70 years) * Primary diagnosis of Major Depressive Disorder as determined by the study psychiatrist and confirmed by the Mini-International Neuropsychiatric Interview (MINI) * Lifetime suicide attempt history and suicidal ideation at baseline as determined by a score ≥2 on the Columbia-Suicide Severity Rating Scale (C-SSRS) Exclusion Criteria: * Clinically significant medical or neurological condition * Current use of strong CYP3A live enzymes or moderate CYP3A inhibitors or strong CYP3A inducers * Current use of digoxin * Currently pregnant, not using contraception, nursing, or trying to become pregnant * Active substance use disorder in the last six months, disorder, or current or past psychotic disorder, bipolar disorder, or obsessive-compulsive disorder * Severe traumatic brain injury * Imminent suicidal or homicidal risk * Free of unstable medical conditions or any contraindication to suvorexant (per FDA prescribing label) as determined by patient interview and review of available medical records.
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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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James J. Peters Veterans Affairs Medical Center
RECRUITINGThe Bronx, New York, 10468, United States
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