- Conditions
- Depressive Disorder, Major
- Interventions
- Psilocybin 25 mg, Inactive Placebo, Psilocybin 5 mg, Psychosocial Support
- Drug · Behavioral
- Lead sponsor
- Usona Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 238 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2027
- U.S. locations
- 29
- States / cities
- Birmingham, Alabama • Fayetteville, Arkansas • Little Rock, Arkansas + 25 more
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- Conditions
- Depressive Disorder, Major
- Interventions
- Psilocybin, Niacin, Set and Setting (SaS) Protocol
- Drug · Other
- Lead sponsor
- Usona Institute
- Other
- Eligibility
- 21 Years to 65 Years
- Enrollment
- 347 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2022
- U.S. locations
- 11
- States / cities
- San Francisco, California • Santa Monica, California • New Haven, Connecticut + 8 more