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Andrew Penn

University of California, San Francisco

5 papers in the library · 89 citations · publishing 2021-2025

Papers

Psychedelic-Assisted Psychotherapy Practices and Human Caring Science: Toward a Care-Informed Model of Treatment

Journal of Humanistic Psychology April 23, 2021 Andrew Penn, Janis Phelps, William E. Rosa et al. 37 citations

Psychedelic therapies combine a healing environment, psychotherapy, and psychedelic medicine to treat depression and PTSD. This article uses Jean Watson's nursing theory of human caring science to describe essential caring qualities in psychedelic therapy. It maps these qualities onto traits of a psychedelic therapist articulated by Janis Phelps, illustrating them with qualitative data from a psilocybin-assisted therapy study. The resulting nursing-informed philosophical framework helps examine trust between patient and therapist, therapeutic openness, mutual learning, the influence of therapists' spiritual practices, optimizing healing environments, and physical care during sessions. The article aims to identify themes and generate hypotheses for future nursing-informed psychedelic psychotherapy research.

Evaluating the risk of psilocybin for the treatment of bipolar depression: A review of the research literature and published case studies

Journal of Affective Disorders Reports September 22, 2021 David E. Gard, Mollie Pleet, Ellen Bradley et al. 33 citations

Psilocybin, the active ingredient in hallucinogenic mushrooms, can rapidly and durably improve depression symptoms, but people with bipolar disorder have been excluded from clinical trials due to concerns about triggering mania. As psilocybin becomes more available, individuals with bipolar disorder may seek it for depression. A review of 17 published cases suggests a potential risk of activating manic episodes, warranting caution. However, the lack of systematic data indicates a need for a cautious trial using modern methods, focusing on those at lowest risk for mania, such as bipolar 2 disorder, given the significant impact of depression in this population.

Psychedelic Use Among Psychiatric Medication Prescribers: Effects on Well-Being, Depression, Anxiety, and Associations with Patterns of Use, Reported Harms, and Transformative Mental States.

Psychedelic medicine (New Rochelle, N.Y.) September 1, 2023 Zachary Herrmann, Adam W Levin, Steven P Cole et al. 9 citations

Among 228 healthcare providers who treat psychiatric disorders with medications and reported at least one lifetime psychedelic use, retrospective measures showed improvements in depression, anxiety, and well-being after psychedelic exposure. Suicidality decreased and resilience increased. A factor analysis indicated that a cluster of mystical, interpersonal, and personal experiences predicted these improvements. The preferred psychedelic agent did not affect outcomes, and frequency of use was not associated with outcomes, though effect sizes varied. Harm was reported by 13.2% (n = 30), consistent with general population rates. Pre-exposure alcohol use, aggressive impulses, and desire to die by suicide improved most often, while marijuana use most often worsened or did not change.

Evaluating the Risk of Psilocybin for the Treatment of Bipolar Depression: A Review of the Research Literature and Published Case Studies

medRxiv April 7, 2021 David E. Gard, Mollie Pleet, Ellen Bradley et al. 7 citations preprint

Psilocybin, the active ingredient in hallucinogenic mushrooms, can rapidly and durably improve depression symptoms, but its safety in people with bipolar disorder is unknown because they have been excluded from clinical trials. The authors reviewed 17 published case histories and found potential risk for activating a manic episode, warranting caution. However, the lack of systematic data or common case examples indicating risk suggests that a cautious trial using modern methods, focused on those at lowest risk for mania (e.g., bipolar 2 disorder), is needed given depression's impact on this population.

A Rapid Review of Psychedelic-Assisted Therapy in the Context of Palliative Care.

Journal of hospice and palliative nursing : JHPN : the official journal of the Hospice and Palliative Nurses Association April 1, 2025 Megan Miller, Molly Meyers, Annona Martin et al. 3 citations

A rapid review of 34 articles from 2021 to 2024 finds that psychedelic-assisted therapy (PAT) is safe and shows initial efficacy for improving psycho-spiritual-existential outcomes in carefully screened patients with serious illness, predominantly cancer. Psilocybin was the most studied compound. Protocols commonly included participant screening, preparation, dosing, and integration. The review highlights current efforts and challenges in integrating PAT into palliative care systems. More research is needed with diverse samples, provider training, care delivery models, and policy solutions. Many patients lack basic psychosocial-spiritual-existential care, so careful integration is essential. The psychedelic substances discussed are not FDA approved.