Defining the Roles and Research Priorities for Psychedelic-Assisted Therapies in Patients with Serious Illness: Expert Clinicians' and Investigators' Perspectives.

Recent and preprohibition studies show that patients with serious illness might benefit from psychedelic-assisted therapies for a range of symptoms, physical, psychosocial, and existential. To explore the potential roles and research priorities of these therapies in patients with serious illness. Qualitative study based on semistructured interviews with 17 experts in serious illness care and/or psychedelic research from the United States and Canada. The interview guide elicited participants' perspectives on (1) the potential roles of psychedelic-assisted therapies in this setting, (2) research priorities relevant to this population, and (3) the potential for integrating psychedelic-assisted therapies into existing delivery models of serious illness care. We used thematic analysis until thematic saturation. Domain I: Participants had polar views on the therapeutic potential of psychedelic-assisted therapies, ranging from strong beliefs in their medical utility to reluctance about their use in this patient population. They shared concerns related to the risks of adverse effects, such as delirium or worsening of psychological distress. Domain II: Research priorities primarily concerned patients with clinically diagnosed psychosocial distress, such as depression, anxiety, or demoralization. Participants also articulated potential roles extending beyond traditional medical diagnosis. Domain III: Participants emphasized essential safety and efficacy guidelines relevant to the integration of these therapies into existing models of care. This qualitative study highlights issues and priorities for research on psychedelic-assisted therapies in patients with serious illness and proposes a conceptual framework for integrating these therapies into existing delivery models of serious illness care.