A Two-Year Observational Follow-up Study of Subjects 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.

Topic Depression
Compound Psilocybin
Country United States of America
Visit trial

Trial Details



Trial Number

Sponsors & Collaborators

Utrecht University
Some researchers at Utrecht University are working on a large psychedelics study with colleagues from Leiden University, but this university hasn't set up any department specifically for psychedelic studies.

Measures Used

Montgomery-Asberg Depression Rating Scale
A ten-item diagnostic questionnaire used to measure the severity of depressive symptoms in patients with mood disorders.

Data attribution

A large set of the trials in our database are sourced from ClinicalTrials.gov (CTG). We have modified these post to display the information in a more clear format or to correct spelling mistakes. Our database in actively updated and may show a different status (e.g. completed) if we have knowledge of this update (e.g. a published paper on the study) which isn't reflected yet on CTG. If a trial is not sourced from CTG, this is indicated on this page and you can follow the link to the alternative source of information.