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Kelley C. O’donnell

New York University

4 papers in the library · 744 citations · publishing 2019-2025

Papers

Percentage of Heavy Drinking Days Following Psilocybin-Assisted Psychotherapy vs Placebo in the Treatment of Adult Patients With Alcohol Use Disorder

JAMA Psychiatry August 24, 2022 Michael P. Bogenschutz, Stephen Ross, Snehal Bhatt et al. 668 citations

Two doses of psilocybin, given alongside psychotherapy, substantially reduced heavy drinking in people with alcohol use disorder compared to an active placebo (diphenhydramine) plus psychotherapy. Over 32 weeks, heavy drinking days averaged 9.7% in the psilocybin group versus 23.6% in the placebo group—a mean difference of 13.9 percentage points. Daily alcohol consumption was also lower with psilocybin. No serious adverse events occurred in the psilocybin group. The findings support further research into psilocybin-assisted treatment for alcohol use disorder.

Multidimensional Personality Changes Following Psilocybin-Assisted Therapy in Patients With Alcohol Use Disorder: Results From a Double-Blind, Placebo-Controlled Clinical Trial

American Journal of Psychiatry January 1, 2025 Noam Goldway, Snehal Bhatt, Stephen Ross et al. 23 citations

Psilocybin-assisted therapy (PAT) produced lasting changes in personality, indicating a normalization of abnormal personality trait expression in people with alcohol use disorder. The findings suggest that PAT may reduce impulsiveness, or that impulsive individuals may inherently respond better to the therapy. Further research is needed to clarify the mechanism.

Psilocybin for depression: Considerations for clinical trial design

Journal of Psychedelic Studies September 1, 2019 Kelley C. O’donnell, Sarah E. Mennenga, Michael P. Bogenschutz 15 citations

Designing rigorous clinical trials of psilocybin for major depressive disorder requires careful attention to participant selection, placebo control, blinding, dosing, non-pharmacological support, outcome measures, and safety. Transparent methods and analysis maximize the chance of obtaining meaningful, reproducible results and help gain broader scientific acceptance for psychedelic research.