Psilocybin depression study cut short: did the benefits last?
Symptom relief
Terminated
This study followed 26 people with major depressive disorder for one year after they received a single dose of psilocybin or a niacin control. Researchers used web surveys and phone interviews to track depression symptoms over time. The study was terminated early, so results are …
Sponsor: Usona Institute • Aim: Symptom relief
Last updated Jun 27, 2026 12:28 UTC