Journal of pain and symptom management
September 1, 2023
Benjamin R Lewis, Eric L Garland, Kevin Byrne et al.
60 citations
Psilocybin-assisted group therapy appears safe and feasible for treating depression in cancer patients. In an open-label pilot trial, twelve participants with a depressive disorder received one high-dose (25 mg) psilocybin session within a three-week group program. Depression scores on the HAM-D scale decreased substantially from an average of 21.5 at baseline to 10.09 at two weeks and 14.83 at six months. Six of twelve participants met remission criteria (HAM-D below 7) at two weeks, and no serious adverse events occurred. The group format may reduce therapist time while maintaining possible efficacy, warranting further study.
Journal of Psychedelic Studies
January 18, 2023
Benjamin R. Lewis, Kevin Byrne, John Hendrick et al.
22 citations
Psilocybin-assisted psychotherapy is usually given one-on-one, but group formats might offer unique benefits and help scale treatment. The HOPE trial tested psilocybin-enhanced group therapy in cancer patients with depression. Three cohorts of 4–6 participants each received three group preparatory sessions, one high-dose (25 mg) group psilocybin session, and three group integration sessions. This report presents qualitative survey data from participants and therapist observations, offering guidelines for protocol design, screening, space, therapist team structure, group process, music, and timeline. Primary clinical outcomes are still being analyzed.
PLoS Medicine
September 19, 2025
Benjamin R. Lewis, John Hendrick, Kevin Byrne et al.
5 citations
Adding a single 25 mg dose of psilocybin to an 8-week Mindfulness-Based Stress Reduction (MBSR) program led to a significantly larger reduction in depressive symptoms among frontline healthcare workers than MBSR alone, with no serious adverse events. In a small randomized trial of 25 physicians and nurses with depression and burnout related to the COVID-19 pandemic, the combination group showed a 4.6-point greater drop on the Quick Inventory of Depressive Symptoms at two weeks post-intervention. This advantage diminished by six months. Secondary measures of burnout, demoralization, and connectedness also favored the psilocybin group but did not survive statistical correction. Larger trials are needed to confirm durability and generalizability.
medRxiv
January 1, 2025
Benjamin R Lewis, John Hendrick, Kevin Byrne et al.
3 citations
preprint
Adding a single 25 mg dose of psilocybin to an 8-week mindfulness-based stress reduction (MBSR) program reduced depression and burnout symptoms more than MBSR alone in frontline physicians and nurses who worked during the COVID-19 pandemic. In a randomized trial with 25 participants, those receiving psilocybin-assisted therapy plus MBSR showed larger decreases in depressive symptoms at two weeks and six months, and greater improvements in burnout, demoralization, and connectedness. No serious adverse events occurred; only mild to moderate side effects were reported. The findings suggest that combining psilocybin with mindfulness training may be a promising treatment for depression and burnout in healthcare workers.