Testing Psilocybin for persisting symptoms after concussion
Official title: Treatment of Persisting Symptoms After Concussion With Psilocybin Assisted Therapy
A Randomized Double-blinded Controlled Trial for the Treatment of Persisting Symptoms After Concussion With Psilocybin-assisted Therapy: A Safety and Feasibility Trial
Interventions
Psilocybin
See treatment arm description.
Canadian Sites (1)
University of Calgary
Calgary, Alberta, Canada
Eligibility Criteria
See who this study is looking for18 criteria
The trial’s own eligibility text, word for word from the registry. Only the trial site can say who takes part.
Inclusion
- +Individuals of all sexes, gender identities, and ethnicities
- +Ages 18 to 65 years at the time of screeningScreeningThe checks done before joining, to see whether a study fits.Read more →
- +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
- +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 trialInterventional studyA study where participants are given something to see what happens.Read more →
- +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
In plain language
Assembled directly from this trial’s registry record. Every sentence traces to a field below — nothing here is generated or interpreted.
What this study is
This study is testing a treatment for a condition.
Phase 1Phase 1The earliest stage of human testing, in a small group, focused on safety.Read more → — an early safety study in a small group, checking how it is tolerated and at what dose.
What is being given or done in this study: Psilocybin.
From the trial registry
Built from these fields:
- designModule.designInfo.primaryPurpose
- designModule.phases
- armsInterventionsModule.interventions[].name
How the study is run
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
You, the study team, the people giving the treatment, and the people analysing the results would all be kept unaware of which group you are in until the study ends.
From the trial registry
Built from these fields:
- designModule.designInfo.allocation
- designModule.designInfo.maskingInfo.masking
Is there a placebo?
This study does not list a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group.
One group receives an existing treatment, so the two can be compared.
There are 2 groups in this study.
From the trial registry
Built from this field:
- armsInterventionsModule.armGroups[].type
Who the study is looking for
The study lists an age range of 18 years to 65 years.
The study is open to people of any sex.
The study does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
These are the criteria the study lists. Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part.
From the trial registry
Built from these fields:
- eligibilityModule.minimumAge
- eligibilityModule.maximumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How big and how long
The study aims to enrol about 40 people.
The study is currently expected to finish around December 2027.
The main measurement is taken over: Throughout study completion, an average of 6 months.
From the trial registry
Built from these fields:
- designModule.enrollmentInfo.count
- statusModule.completionDateStruct.date
- outcomesModule.primaryOutcomes[].timeFrame
What the study measures
Incidence of Treatment-Emergent Adverse EventsAdverse eventAny medical problem that happens during a study, whether or not the treatment caused it.Read more → [Safety and Tolerability] — measured over Throughout study completion, an average of 6 months.
Study protocolProtocolThe detailed plan a study must follow.Read more → efficacy — measured over Throughout study completion, an average of 6 months.
Study protocol feasibility — measured over ScreeningScreeningThe checks done before joining, to see whether a study fits.Read more →, enrolmentEnrolmentThe number of participants a study plans to include, or has included.Read more →, intervention, and participation up to study end pointEndpointThe specific thing a study measures to answer its question.Read more → (6-months).
From the trial registry
Built from these fields:
- outcomesModule.primaryOutcomes[].measure
- outcomesModule.primaryOutcomes[].timeFrame
Source: NCT06615908 on ClinicalTrials.gov. The full registry text is further down this page — this summary never replaces it.
Not medical advice. What do these terms mean?
What is being tested — in plain terms
About PsilocybinDrug
See treatment arm description.
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
Common questions
Answered from this trial’s registry record. Where the record doesn’t say, these answers say so rather than filling the gap.
Am I eligible for this trial?
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part. Concord cannot make that determination, and neither can any tool that has not examined you.
What the study lists: an age range of 18 years to 65 years.
The full inclusionInclusion criteriaThe things you must have or be for a study to consider you.Read more → and exclusion criteriaExclusion criteriaThe things that would prevent someone from taking part.Read more → are published on this page, exactly as the study team wrote them.
The useful next step is to bring this trial to your doctor. Answering a few questions first gives them something concrete to review.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.maximumAge
- eligibilityModule.eligibilityCriteria
Is there a placebo?
This study does not list a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group.
One group receives an existing treatment so the two can be compared.
From the trial registry
- armsInterventionsModule.armGroups[].type
Would I know which treatment I am getting?
You, the study team, the people giving the treatment, and the people analysing the results would all be kept unaware of which group you are in until the study ends.
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
From the trial registry
- designModule.designInfo.maskingInfo.masking
- designModule.designInfo.allocation
Who can join?
The study lists an age range of 18 years to 65 years.
It is open to people of any sex.
It does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can confirm whether a particular person can take part.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.maximumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How long would this take?
The study's main measurement is taken over: Throughout study completion, an average of 6 months.
The study as a whole is currently expected to finish around 2027-12-30.
How long any one person takes part can differ from the study length. The study team can tell you what the schedule looks like in practice.
From the trial registry
- outcomesModule.primaryOutcomes[].timeFrame
- statusModule.completionDateStruct.date
How many people are taking part?
The study aims to enrol about 40 people.
From the trial registry
- designModule.enrollmentInfo.count
Where is this happening?
This study lists one location: Calgary, Alberta, Canada.
Sites can open and close during a study, so confirm with the team before travelling.
From the trial registry
- trial_locations
About This Trial
The goal of this randomized controlled trial is to evaluate the safety, feasibility, and efficacy of psilocybin assisted therapy as an intervention to reduce symptom burden in adult patients (aged 18-65) with persisting symptoms after concussion (PSaC). This trail will test the following 2 aims: AIM 1 : To test the safety and feasibility of an active psilocybin-assisted psychotherapy to an active control for patients with PSaC. AIM 2: To evaluate the efficacy of an active psilocybin-assisted psychotherapy compared to an active control as a treatment for PSaC. Participants will be asked to: * Complete a 2-part screening process * Attend a baseline assessment * Complete a psychoeducation preparation session(s) * Attend psilocybin administration session (receive high dose \[25mg\] or low dose psilocybin \[1mg\]) * Complete 5 weekly sessions of Acceptance and commitment therapy (ACT) * Repeat outcome measures at 1-week, 4 weeks, 3 months, and 6 months post-psilocybin administration (online only at 6 months).
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See if this trial could fit youThis page is for informational purposes only and does not constitute medical advice. Clinical trial eligibility can only be determined by the trial site after proper screening. Trial information is sourced from ClinicalTrials.gov and may not reflect the most current status. Always consult your healthcare provider before making decisions about clinical trial participation.