Pilot Data on Salivary Oxytocin as a Biomarker of LSD Response in Patients with Major Depressive Disorder
Psychoactives August 1, 2025 L. Cazorla, S. Alaux, C. Amberger et al.
Salivary oxytocin levels changed significantly over time during a single LSD-assisted psychotherapy session in people with treatment-resistant major depressive disorder. Perceived psychedelic intensity also varied significantly. These findings suggest oxytocin may serve as a biomarker for the therapy's effects. The study was a small observational pilot; larger controlled trials are needed to confirm the results and clarify how oxytocin dynamics relate to changes in depressive symptoms and mental flexibility.