A Study of Psilocybin for Major Depressive Disorder (MDD)
Summary
The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →
Investigators
The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.
- Charles Raison, MD
Usona Institute
Study Director
A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.
Sites
11 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.
- University of California, San Francisco
San Francisco, California, United States
- Pacific Neuroscience Institute
Santa Monica, California, United States
- Yale University
New Haven, Connecticut, United States
- Segal Trials
Lauderhill, Florida, United States
- Emory University
Atlanta, Georgia, United States
- Great Lakes Clinical Trials
Chicago, Illinois, United States
- Johns Hopkins University
Baltimore, Maryland, United States
- Hassman Research Institute
Berlin, New Jersey, United States
- New York University School of Medicine
New York, New York, United States
- Cedar Clinical Research
Draper, Utah, United States
- University of Wisconsin - Madison
Madison, Wisconsin, United States
Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.
Drugs studied
No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →
Registration & key dates
Registry attributes as recorded on the ClinicalTrials.gov study record.
- Start
- 23 Jan 2020
- Primary completion
- 28 Jun 2022
- Completion
- 28 Jun 2022
- Last update posted
- 22 Apr 2026
- Registered enrollment
- 347
- Registry id
- NCT03866174
Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.