The Safety and Efficacy of Psilocybin in Participants With Treatment Resistant Depression
Public ClinicalTrials.gov record NCT03775200. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Study identification
- NCT ID
- NCT03775200
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- COMPASS Pathways
- Industry
- Enrollment
- 233 participants
Conditions and interventions
Conditions
Interventions
- Psilocybin Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 28, 2019
- Primary completion
- Jul 29, 2021
- Completion
- Sep 26, 2021
- Last update posted
- Apr 23, 2023
2019 – 2021
United States locations
- U.S. sites
- 8
- U.S. states
- 6
- U.S. cities
- 8
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Kadima Neuropsychiatry Institute | La Jolla | California | 92037 | — |
| Altman Clinical and Translational Research Institute, University of California | San Diego | California | 92093 | — |
| Stanford Department of Psychiatry | Stanford | California | 94305 | — |
| Mood and Anxiety Disorders Program Emory University School of Medicine | Atlanta | Georgia | 30329 | — |
| Ray Worthy Psychiatry LLC | New Orleans | Louisiana | 70123 | — |
| Sheppard Pratt Health System | Baltimore | Maryland | 21204 | — |
| New York State Psychiatric Institute | New York | New York | 10032 | — |
| UT Center of Excellence on Mood Disorders, University of Texas Health Science Center | Houston | Texas | 77054 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 17 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03775200, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 23, 2023 · Synced May 7, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03775200 live on ClinicalTrials.gov.