Magic mushroom compound shows promise for Tough-to-Treat depression and BPD
NCT ID NCT05399498
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This small Phase 2 trial tested a single 25mg dose of psilocybin in 9 adults with both major depressive disorder and borderline personality disorder. Researchers measured changes in depression and BPD symptoms over time. The goal was to see if psilocybin is safe and could help ease symptoms in this complex group.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- psilocybin (a psychedelic compound)
- What this could lead to
- If it works, this could point toward a new treatment option for people with both depression and borderline personality disorder.
- What could go wrong
- This is a very small, early-stage trial with only 9 participants, so results may not apply to everyone. Psychedelic therapy can cause intense emotional experiences and is not without risks.
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
-
Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
-
9 people
The number who actually took part.
- Started
-
Nov 2023
- Finished
-
Dec 2025
- Lead sponsor
-
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
-
18 to 65 years
- Sex
-
Anyone
- Healthy volunteers
-
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.
Inclusion Criteria: * Age 18-65 * Diagnosed with current major depressive disorder * Montgomery-Asberg Depression Rating Scale (MADRS) score of \> 20 * Diagnosed with borderline personality disorder * Borderline Personality Disorder Symptom Assessment Scale (BPD-SAS) score of \> 20 * Ability to understand and sign the consent form Exclusion Criteria: * Unstable medical illness based on history or clinically significant abnormalities on baseline physical examination * Current pregnancy or lactation, or inadequate contraception in women of childbearing potential * Illegal substance use based on urine toxicology screening (except cannabis use) * Current or past history of bipolar I disorder, schizophrenia, or schizoaffective disorder * Active substance use disorder
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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.
Contacts and locations
Locations
-
University of Chicago
Chicago, Illinois, 60637, United States
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Other studies related to the condition(s) this trial covers.
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