Magic mushroom therapy could ease persistent concussion symptoms
NCT ID NCT06615908
First seen Jun 27, 2026 · Last updated Sep 10, 2026 · Updated 2 times
Summary
This study tests whether psilocybin (the active ingredient in magic mushrooms) combined with talk therapy can safely reduce symptoms in adults with persisting symptoms after concussion. Forty participants will receive either a high or low dose of psilocybin, plus weekly therapy sessions. The main goals are to check safety, feasibility, and whether symptoms improve over six months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- psilocybin (the active ingredient in magic mushrooms)
- What this could lead to
- If it works, this could point toward a new treatment option for people with long-lasting concussion symptoms.
- What could go wrong
- This is a very early phase 1 trial with only 40 participants, so results may not apply widely. Psilocybin can cause temporary psychological distress, and the low-dose control group may also show effects.
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 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2025
- Expected to finish
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Dec 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 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.
In order to be eligible to participate in this study, an individual must meet all of the following criteria: * Individuals of all sexes, gender identities, and ethnicities * Ages 18 to 65 years at the time of screening * Diagnosis of concussion based on the 2024 ACRM criteria * Meet ICD-10 criteria for PSaC for at least 3-months to a maximum of 5 years * Have an overall RPQ score ≥ 13 with 3 or more symptoms scored ≥3 * Limited lifetime use of serotonergic hallucinogens * Ability to read/write English An individual who meets any of the following criteria will be excluded from participation in this study: * Severe or moderate substance use disorder other than nicotine in past 6 months * Lifetime diagnosis of schizophrenia or bipolar disorders (or first or second-degree relative) * Active suicidal ideation or serious attempt within the past 1 year. * Current pregnancy or nursing, trying to become pregnant * Any notable abnormality on ECG or routine medical blood laboratory test * Insulin-dependent diabetes; if taking oral hypoglycemic agent, then no history of hypoglycemia * Epilepsy with a history of seizures * Current or recent (within 12 weeks) participation in a clinical trial * Cognitive impairment (SLUMS score \<20) * Suffered a moderate/severe TBI at least once in lifetime * Any other circumstances that, in the opinion of the investigators, compromises participant safety
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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 study's own enquiry address
This study publishes an address for enquiries. See it below .
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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
Show contact details
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Locations
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University of Calgary
RECRUITINGCalgary, Alberta, T2N 2T9, Canada
Contact Email: •••••@•••••
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