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Active, not recruitingNCT04433858Updated Aug 9, 2024

An Open Label Study of the Safety and Efficacy of Psilocybin in Participants With Treatment-Resistant Depression (P-TRD)

A Phase 2 interventional study of Psilocybin in Treatment Resistant Depression, sponsored by Sheppard Pratt Health System. Active, not recruiting at 2 sites in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2024-08-09.

Sponsored by Sheppard Pratt Health System · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jun 2025, 1 year 4 months ago, but the record still lists the study as active, not recruiting.
Phase
Phase 2
Study type
Interventional
Enrollment
27
Allocation
Not applicable
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The primary objective of this study is to evaluate the efficacy of psilocybin (25 mg) administered under supportive conditions to adult participants with severe TRD, in improving depressive symptoms.

02

Conditions studied

03

In context

Depression

8,057 studies on the registry are indexed under Depression; 1,641 are open to participants now.

This study's enrollment of 27 is below the median of 84 across 6,720 interventional studies indexed under Depression.

Browse Depression studies →

Lead sponsor

Sheppard Pratt Health System is the lead sponsor of 14 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Diagnosis of at least moderate Major Depressive Disorder (MDD)

Exclusion criteria

Exclusion Criteria:

  • Comorbidities

Note for CA site: Only Veterans are Eligible

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
27 participants (actual)

Study arms

  • Experimental
    Psilocybin

    25mg of Psilocybin Note: CA site only is re-dosing participants with an exacerbation in depressive symptoms at a minimum of 12 months post-initial dosing.

    Drug: Psilocybin

Interventions

  • DrugPsilocybin

    open-label

    Also known as: COMP360

06

What researchers measure

Primary outcomes

  1. Montgomery Asberg Depression Rating Scale (MADRS)

    MADRS is a clinician-rated scale measuring depression severity, consisting of 10 items, each scored from 0 (normal) to 6 (severe), for a total possible score of 60; higher scores denote greater severity. Response = \>50% decrease and Remission =\< 10 actual score.

    Time frame: From Baseline (Day -1) to three weeks post-dose.

07

Study locations

2 sites
  • VA Palo Alto Healthcare System/Stanford Medicine
    Palo Alto, California 94304, United States
  • Sheppard Pratt Health System
    Baltimore, Maryland 21204, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 9, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04433858
Lead sponsor
Sheppard Pratt Health System
Collaborators
COMPASS Pathways
Responsible party
Scott T. Aaronson, M.D (Director, Clinical Research Programs, Sheppard Pratt Health System) — Principal investigator
First posted
Jun 16, 2020
Start date
Mar 1, 2021
Primary completion
Jun 1, 2025 (estimated)
Completion
May 1, 2026 (estimated)
Last update
Aug 9, 2024

Study contacts

Scott Aaronson, MD
principal investigator · Sheppard Pratt Health System

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Aug 2024. You cannot join it, but the record below documents what was studied.

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