This Phase I, open-label, single-group trial (n=24) will study the safety, pharmacokinetic profile and preliminary efficacy of organic whole psilocybin-containing mushrooms (30mg psilocybin administered orally in a single dosing session) in adults with post‑traumatic stress disorder (PTSD), with primary emphasis on adverse events and mental/psychotic adverse events. Up to 24 participants aged ≥18 years who meet DSM‑5 criteria for current PTSD of ≥6 months (with at least one traumatic event on the LEC‑5 and a PCL‑5 score ≥33) will self-administer dried psilocybin mushrooms in a chocolate formulation during a single dosing session. The study is single‑arm and open‑label; outcomes include incidence of adverse events and serious adverse events graded by NCI CTCAE v5.0 and incidence of mental/psychotic adverse events from dosing through a 3‑month follow‑up, and the trial will also characterise pharmacokinetics and collect preliminary efficacy and patient‑reported measures.
This study will examine the safety and preliminary efficacy of psilocybin mushrooms to treat adults with PTSD. Up to 24 participants will take part in this study. Each participant will ingest psilocybin from dried mushrooms in a chocolate formulation.
Unmatched intervention: Psychedelic