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Magic mushroom therapy shows promise for depression in small trial

NCT ID NCT05227612

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This early-phase study tested whether combining psilocybin (the active ingredient in magic mushrooms) with cognitive behavioral therapy is a feasible and acceptable treatment for major depression. Sixteen adults with moderate to severe depression received two doses of psilocybin plus 12 therapy sessions. The goal was to see if people would stick with the treatment and find it helpful, not to prove it works yet.

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 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

16 people

The number who actually took part.

Started

Jun 2023

Finished

Sep 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

21 to 60 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.

Show 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: * • Ages 21-60, * Able to swallow capsules, * Patients with a current major depressive episode or a history of major depressive episodes based on the DSM-5 criteria (American Psychiatric Association, 2013), * Active current depressive symptoms (i.e., scores \>16 on the Hamilton-Depression Rating Scale (HAM-D) covering the prior 2 weeks; Hamilton, 1986), * Have an identified support person who can pick up the individual from UCLA Semel Institute and drive individual home following psilocybin sessions, * For women of child-bearing potential - using one form of highly effective contraception (e.g., oral contraceptive pill) and willingness to continue contraceptive use for duration of study * Patient has been medically cleared for the study by a physician. Exclusion Criteria: * • A personal or family history (first or second-degree) of psychosis or bipolar disorder * Resting blood pressure above 140 systolic, 90 diastolic (averaged across four separate measurements) * Meeting criteria for a DSM-5 cluster B personality disorder (narcissistic, histrionic, borderline, antisocial personality disorder), * Active suicidality (as indicated by a 3 or greater on item 3 of the HAM-D) or other psychiatric disturbance requiring acute treatment * Current use of antidepressants or other serotonergic-affecting substances (e.g., St. John's Wort and 5-hydroxytryptophan), * Currently receiving cognitive behavioral therapy, * Any of the following cardiovascular conditions: uncontrolled hypertension, coronary artery disease, congenital long QT syndrome, cardiac hypertrophy, cardiac ischemia, congestive heart failure, myocardial infarction, tachycardia, artificial heart valve, a clinically significant screening ECG abnormality, or any other significant cardiovascular condition * A history of stroke or Transient Ischemic Attack (TIA) * Epilepsy or history of seizures * Insulin-dependent diabetes * Meeting criteria for a DSM-5 substance abuse or dependence within prior 6 months * Positive urine drug screen for illicit substances * Use of other psychedelics or ketamine within prior 12 months * Adverse prior reaction to a psychedelic agent * Pregnant, trying to get pregnant, or nursing

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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

  • UCLA Semel Institute

    Los Angeles, California, 90095, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.