NCT07226232

Brief Summary

The purpose of this multi-site randomized controlled trial is to evaluate the efficacy and risks of psilocybin for the treatment of depression in U.S. military Veterans with and without (±) concurrent posttraumatic stress disorder.

Trial Health

63
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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
240

participants targeted

Target at P50-P75 for phase_3

Timeline
60mo left

Started Jun 2026

Longer than P75 for phase_3

Geographic Reach
1 country

5 active sites

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 5, 2025

Completed
5 days until next milestone

First Posted

Study publicly available on registry

November 10, 2025

Completed
7 months until next milestone

Study Start

First participant enrolled

June 1, 2026

Expected
4.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 2, 2030

5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2031

Last Updated

November 10, 2025

Status Verified

November 1, 2025

Enrollment Period

4.5 years

First QC Date

November 5, 2025

Last Update Submit

November 6, 2025

Conditions

Keywords

depressionpsilocybinveteranspost-traumatic stress disorder

Outcome Measures

Primary Outcomes (1)

  • Montgomery-Asberg Rating Scale (MADRS)

    10-item clinician-administered rating scale for depression. Scored 0 to 60; higher score indicates more severe symptomatology.

    2 weeks

Secondary Outcomes (1)

  • Swiss Psychedelic Side Effects Inventory Overall Score

    one day

Other Outcomes (4)

  • Clinician-Administered PTSD Scale for DSM-5 - Revised

    one month

  • Hamilton Depression Rating Scale

    two weeks

  • Patient Health Questionnaire 9

    two weeks

  • +1 more other outcomes

Study Arms (2)

Control

ACTIVE COMPARATOR

Psilocybin comparator dose

Drug: Psilocybin

Intervention

EXPERIMENTAL

Psilocybin intervention dose

Drug: Psilocybin

Interventions

Psilocybin comparator dose

Also known as: COMP360
Control

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Veteran of the U.S. military who is English-speaking
  • Signed informed consent and HIPAA
  • Adults \</= 75 years of age
  • Meets DSM-5 criteria for current major depressive episode (MDE)
  • MADRS \>/= 20 at baseline
  • Failure to respond satisfactorily to \>/= 2 antidepressant treatments for \>/= 8 weeks, including \>/= 2 weeks at an adequate dose (\>/= 50% of the FDA-approved uppermost dose) for major depression. Augmentation with a medication for depression (e.g., neuroleptics, lithium, levothyroxine) is considered a separate course of treatment.
  • If applicable, concurrent \& permitted antidepressants must be at stable doses for \>/= 4 weeks prior to baseline (see allowed \& prohibited medication list)
  • Participants of child-bearing potential must have negative pregnancy test \& agree to adhere to a medically acceptable method of birth control during the study
  • Has a responsible adult who will provide transportation to the participant's home or place of lodging on the days of psilocybin administration

You may not qualify if:

  • Lifetime bipolar, schizophrenia spectrum, or other psychotic disorders
  • First-degree relative with history of bipolar I, schizophrenia spectrum or other psychotic disorder
  • Presence of psychotic symptoms (e.g., MDE with psychotic symptoms)
  • Sedative-hypnotic, stimulant, inhalant and/or opioid use disorder within past 6 months (lifetime substance use disorder is allowed at the discretion of the LSI)
  • Severe alcohol and/or cannabis use disorder within the past 6 months (mild or moderate alcohol and/or cannabis use is allowed at the discretion of the LSI)
  • Lifetime hallucinogen persisting perception or hallucinogen use disorders
  • Use of psilocybin, ayahuasca, mescaline, lysergic acid diethylamide (LSD), dimethyltryptamine (DMT), 5-Methoxy-N,N-dimethyltryptamine (5-MeO-DMT), peyote, or 3,4-methylenedioxymethamphetamine (MDMA) within past 6 months
  • Participant agrees to not use psychedelics (listed above) during the study, except as prescribed by the study protocol
  • Taking prohibited medication within 2 weeks of baseline (see allowed and prohibited concomitant medication list)
  • History of severe traumatic brain injury (TBI)
  • Diagnosis of dementia or related progressive neurocognitive disorder
  • Suicidal ideation/behavior Type 4 or Type 5 intensity on C-SSRS within past 6 months of baseline
  • Psychiatric inpatient treatment within past 3 months of baseline
  • Treatment with electroconvulsive therapy, deep brain stimulation, vagus nerve stimulation, or transcranial magnetic stimulation within 3 months of baseline
  • Implanted central nervous system device
  • +10 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (5)

Birmingham VA Medical Center, Birmingham, AL

Birmingham, Alabama, 35233-1927, United States

Location

Tuscaloosa VA Medical Center, Tuscaloosa, AL

Tuscaloosa, Alabama, 35404-5015, United States

Location

VA Portland Health Care System, Portland, OR

Portland, Oregon, 97207-2964, United States

Location

Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA

Philadelphia, Pennsylvania, 19104-4551, United States

Location

VA Puget Sound Health Care System Seattle Division, Seattle, WA

Seattle, Washington, 98108-1532, United States

Location

MeSH Terms

Conditions

Depressive Disorder, MajorDepressionStress Disorders, Post-Traumatic

Interventions

Psilocybin

Condition Hierarchy (Ancestors)

Depressive DisorderMood DisordersMental DisordersBehavioral SymptomsBehaviorStress Disorders, TraumaticTrauma and Stressor Related Disorders

Intervention Hierarchy (Ancestors)

Indole AlkaloidsAlkaloidsHeterocyclic CompoundsIndolesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingTryptaminesIndolizidinesIndolizines

Study Officials

  • Lori Lynne Davis, MD AB

    Birmingham VA Medical Center, Birmingham, AL

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Lori L Davis, MD AB

CONTACT

Anchal Ghera, MS

CONTACT

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Only pharmacist will know the treatment assignment. All others are masked to treatment assignment. For the 1st of 2 dosing sessions, Veterans are randomized to receive one of two doses of psilocybin. One month later, participants return for a 2nd psilocybin dosing session in which all participants get the same dose of psilocybin.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Enrolled participants who meet eligibility criteria and attend 3 preparatory visits with a psychological support facilitator will be randomized to either the control group or the intervention group in parallel until the primary endpoint at week 4 post randomization.
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 5, 2025

First Posted

November 10, 2025

Study Start (Estimated)

June 1, 2026

Primary Completion (Estimated)

December 2, 2030

Study Completion (Estimated)

April 30, 2031

Last Updated

November 10, 2025

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will share

De-identified data and a data dictionary will be shared pending required IRB approval, and if needed, a Data Use Agreement.

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
At the conclusion of the study after a data repository has been made operational.
Access Criteria
De-identified data of those participants who signed informed consent, to include baseline demographics and clinical characteristics, primary outcome measure over time, treatment assignment, secondary safety outcomes, and exploratory outcomes. Data will be available for 6 years after the closure of the main study.

Locations