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Ian Roullier

3 papers in the library · 26 citations · publishing 2025-2026

Papers

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Participant experiences and recommendations for psychedelic clinical trials and future treatment delivery: a qualitative study with experts by experience from the Psychedelic Participant Advocacy Network

Frontiers in Psychiatry October 14, 2026 Mathieu Seynaeve, Leonie Schneider, Ian Roullier et al.

BackgroundWhile psychedelic treatments for difficult-to-treat mental health conditions are advancing, participant perspectives remain under-explored. This study examined former participants’ experiences across recruitment, preparation, dosing, integration and study ending, and generated recommendations for future trials and treatment delivery.MethodsThis qualitative descriptive study, informed...

As psychedelic treatments get leaner, patients' social environments deserve attention

Zenodo (CERN European Organization for Nuclear Research) March 3, 2026 Edward Jacobs, Ian Roullier, Rosalind Watts et al. preprint

As psychedelic treatments approach licensing with reduced clinical intensity, the psychological functions previously served by integration support are increasingly displaced onto patients' social environments. This Perspective argues that these environments are plausible but unmeasured moderators of outcome, and proposes three responses: structured psychoeducation for support networks,...

DOI: 10.5281/zenodo.18852349 (opens in new tab) Perspective graphical Psychoeducation Social support Perception +4

An international Delphi consensus for reporting of setting in psychedelic clinical trials.

Nature Medicine June 3, 2025 Chloé Pronovost-Morgan, Kyle T. Greenway, Leor Roseman et al. 26 citations

Psychedelic substances exhibit complex interactions with the 'set and setting' of use, that is, the mental state of the user and the environment in which a psychedelic experience takes place. Despite these contextual variables' known importance, psychedelic research has lacked methodological rigor in reporting extra-pharmacological factors. This study aimed to generate consensus-based...

DOI: 10.1038/s41591-025-03685-9 (opens in new tab) Full text (opens in new tab) Psychedelic therapy Therapeutic protocols Clinical guidelines Mental health treatment +1