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Elisa Brietzke

Centre for Neuroscience Studies, Queen's University, Kingston, ON, Canada.

6 papers in the library · 121 citations · publishing 2023-2025

Papers

Psilocybin-assisted psychotherapy for treatment resistant depression: A randomized clinical trial evaluating repeated doses of psilocybin.

Med (New York, N.Y.) March 8, 2024 Joshua D Rosenblat, Shakila Meshkat, Zoe Doyle et al. 97 citations

Psilocybin-assisted psychotherapy (PAP) is feasible for patients with complex, treatment-resistant depression, including those with bipolar II disorder and baseline suicidality. In a randomized trial with 30 adults, those receiving immediate PAP showed greater reductions in depression severity (MADRS) compared to a waitlist control, with a large effect size (Hedge's g = 1.07). Adverse events were transient and no serious adverse events occurred. Repeated doses over six months were associated with further improvement. The findings suggest PAP can be safely delivered to this population and warrants further study.

Psilocybin-assisted psychotherapy as a potential treatment for eating disorders: a narrative review of preliminary evidence

Trends in Psychiatry and Psychotherapy May 1, 2023 Elena Koning, Elisa Brietzke 13 citations

Eating disorders involve abnormal energy balance, cognitive inflexibility, and emotional distress, with few effective treatments and low long-term remission. Psilocybin, a serotonergic psychedelic, shows therapeutic potential for disorders marked by rigid thinking and treatment resistance. This narrative review examines the hypothesis that psilocybin-assisted psychotherapy could be an effective adjunctive treatment for eating disorders, drawing on biological plausibility, transdiagnostic evidence, and preliminary results. The authors conclude that current literature does not yet support clinical use, but preliminary evidence warrants more rigorous clinical trials.

The historical opposition to psychedelic research and implications for credibility in psychiatry.

CNS spectrums November 21, 2024 Elena Koning, Elvina M Chu, Elisa Brietzke 5 citations

Psychedelics alter consciousness and have been used for centuries by indigenous communities, but only recently studied as therapeutic tools in psychotherapy. Since the early twentieth century, psychedelic-assisted psychotherapy has been explored for neuropsychiatric conditions with rigid thought patterns and treatment resistance. This emerging field has faced opposition from mid-twentieth century counterculture associations, media sensationalism, legislative restrictions, and scientific criticisms like 'breaking the blind' and 'excessive enthusiasm.' This perspective article examines that historical opposition and its implications for the field's credibility. Drawing lessons from history can aid clinical research in psychiatry amid drug policy reform.

The influence of stakeholder interests on safety outcome reporting in psychedelic research and implications for science communication.

Trends in psychiatry and psychotherapy January 1, 2025 Elena Koning, Marco Solmi, Elisa Brietzke 4 citations

As psychedelics gain acceptance for mental health treatment, corporate funding of clinical trials raises concerns about conflicts of interest and biased reporting. The evidence for safety and efficacy of psychedelic-assisted psychotherapy remains early. This paper examines safety concerns associated with psychedelics, how financial stakeholders may influence the reporting of safety outcomes, and why balanced science communication is critical for public health and safety during ongoing drug reform.

Exploring the neurobiological correlates of psilocybin-assisted psychotherapy in eating disorders: a review of potential methodologies and implications for the psychedelic study design

Journal of Eating Disorders December 27, 2024 Elena Koning, Cristiano Chaves, Elisa Brietzke et al. 2 citations

Eating disorders affect 1-3% of the population, and standard treatments fail for about one third of cases. Psilocybin-assisted psychotherapy shows emerging evidence for improving outcomes, but limited knowledge of its neurobiological mechanisms restricts confirmation of clinical utility. This narrative review surveys methodologies—including magnetic resonance imaging, molecular neuroimaging, electrophysiology, and neuroplasticity markers—that could probe the neurobiological correlates of psilocybin-assisted psychotherapy in eating disorders. It describes implications of these methods for psychedelic study design, challenges, limitations, and future directions, serving as a resource for scientists designing studies to identify effective therapeutic interventions.

Which Psychotherapy Model Should be Used in Psilocybin Treatment for Depression?

Trends in Psychiatry and Psychotherapy January 1, 2025 Elena Koning, Pedro Starzynski Bacchi, Cristiano Chaves et al.

Both models of psychological intervention in psilocybin-assisted therapy (PAP) may have clinical relevance for treating depression. Future research should standardize reporting of psychological interventions in PAP and use comparative study designs to better evaluate non-specific and specific treatment models, which could inform clinical guidelines.