This open-label fMRI study will assess the effects of a single dose of psilocybin on rumination and the neural correlates of rumination in individuals with treatment-resistant major depressive disorder.
Open-label, single-group Phase II fMRI study of a single 25 mg oral psilocybin dose in 20 participants with treatment-resistant major depressive disorder to assess changes in rumination and neural correlates.
Primary purpose is basic science; outcomes include neuroimaging measures of self-related processing, clinical scales (HAM-D-17), and safety assessments.
25 mg oral psilocybin, single-group open-label.
Open-label, fMRI single dose