A One-Year Observational Follow-up Study of Participants With Major Depressive Disorder Following a Randomized, Double-Blind Single-Dose of Psilocybin or Niacin-Control
This is a Phase 2 double-blind, long-term observational follow-up study of participants from Study PSIL201. Participants providing informed consent were enrolled into this study and completed web surveys and telephone interviews conducted by one central site at the following time intervals: months 3 and 6 (± 7 days for each assessment) and months 10 and 12 (± 14 days for each assessment).