NCT05227612CompletedPhase 1
Psilocybin-assisted CBT for Depression
Psilocybin-assisted Cognitive Behavioral Therapy for Depression
Source: ClinicalTrials.gov · Last updated 19 May 2026
Brief summary (registry, in English)
The primary objectives of this clinical investigation are to (1) determine the acceptability and feasibility of joining psilocybin-assisted therapy with cognitive-behavioral therapy (PA-CBT) for patients with depression, (2) optimize CBT to most effectively integrate the psilocybin experience with psychotherapy and (3) examine the clinical benefit of psilocybin as an adjunct to cognitive-behavioral therapy (CBT) for major depressive disorder. This study will involve an open trial of PA-CBT where participants will receive two doses of psilocybin (10mg and then 25mg, separated by one month) plus 12 sessions of cognitive behavioral therapy.
- Status (registry)
- Completed
- Phase (registry)
- Phase 1
- Study type
- Interventional
- Enrollment
- 16 (actual)
- First submitted
- 26 Jan 2022
- Start date
- 27 Jun 2023
- Primary completion date
- 12 Sept 2025
- Lead sponsor
- University of California, Los Angeles
- Diseases
- Depression
- NCT number
- NCT05227612
What you commit to
- Study type: Interventional · Phase 1
- Participants enrolled: 16
- From 27 Jun 2023 to the primary completion date, 12 Sept 2025
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Lab values
- • 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
Who the study is looking for
- • 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.
Age in the registry: 21 years to 60 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| UCLA Semel Institute Coordinator of this site? Confirm its status | Los Angeles | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.