Journal of Psychopharmacology
August 17, 2026
Lana Strika-Bruneau, Chérine Elhssaini, Baptiste Fauvel et al.
Background: Psychedelic-assisted psychotherapy (PAP) shows promise for substance use disorders (SUDs), yet the respective contributions of pharmacological, experiential, psychotherapeutic, and contextual factors remain insufficiently understood. Objective: To synthesize contemporary clinical evidence on PAP for SUDs, with particular attention to therapeutic frameworks, dosing strategies,...
Progress in neuro-psychopharmacology & biological psychiatry
June 20, 2026
Ewen Kervadec, Pauline Mathieu, Baptiste Fauvel et al.
The renewal of psychedelic medicine has garnered significant scientific interest, with large efforts dedicated to the understanding of the complex subjective experiences induced by these substances. The Altered States of Consciousness (ASC) questionnaire represents the most comprehensive instrument for measuring such experiences yet lacks a validated French translation despite its centrality to...
Progress in neuro-psychopharmacology & biological psychiatry
January 23, 2026
Bruno Romeo, Ewen Kervadec, Baptiste Fauvel et al.
1 citation
The intensity of the psychedelic experience has been shown to be associated with its clinical efficacy. This study aims to investigate the factors that may influence the level of altered consciousness during naturalistic psychedelic use, which serves as a proxy for the intensity of the psychedelic experience. A retrospective online survey was conducted on individuals who reported a psychedelic...
Qeios
December 9, 2025
Jacques Suspène, Sarah Huet, Sabine Berteina‐raboin et al.
Alcohol use disorder is a psychiatric condition characterized by excessive alcohol consumption. The drugs that are used to treat it often fail to prevent relapse. At the same time, psilocybin is increasingly being investigated for the treatment of various substance use disorders. This review aims to evaluate the results of the most recent clinical trials assessing psilocybin as a treatment for...
Preprints.org
October 17, 2025
Jacques Suspène, Sarah Huet, Sabine Berteina‐raboin et al.
preprint
Alcohol use disorder is a psychiatric condition characterized by excessive alcohol consumption. The drugs that are used to treat it often fail to prevent relapse. At the same time, psilocybin is increasingly being investigated for the treatment of various substance use disorder. This review aims to evaluate the results of the most recent clinical trials assessing psilocybin as a treatment for...
Neuroscience and Biobehavioral Reviews
May 1, 2025
Bruno Romeo, Ewen Kervadec, Baptiste Fauvel et al.
36 citations
Psychedelic-assisted therapies have demonstrated promising results in treating mental disorders, with results suggesting that the subjective intensity and quality of psychedelic experiences plays a significant role in mediating therapeutic effects. However, the strength of this association across diagnoses and treatment settings remains underexplored. We searched MEDLINE, Embase, and PsycINFO...
Journal of Psychoactive Drugs
April 25, 2025
Bruno Romeo, Ewen Kervadec, Baptiste Fauvel et al.
Neurobiological effects and psychological models propose that psychedelics may promote psychological flexibility, suggesting a transdiagnostic effect by disrupting maladaptive patterns. The objective of this study was therefore to investigate the determinants of psychological flexibility change following a psychedelic use. This retrospective online survey included French individuals who had...
Progress in neuro-psychopharmacology & biological psychiatry
March 20, 2025
Bruno Romeo, Ewen Kervadec, Baptiste Fauvel et al.
5 citations
The intensity of the psychedelic experience has been hypothesized as the main predictor of response to a psychedelic treatment. This study aimed to investigate factors that may be associated with the intensity of mystical experiences during naturalistic psychedelic use. The data of this comprehensive sample were aggregated from four previous retrospective surveys, where mystical experience...
L'Encephale
February 1, 2025
Doriane Dost, Amine Benyamina, Laurent Karila
Current scientific literature supports classical psychedelic efficacy in many psychiatric disorders. However, less attention has been given to the neurological effects of these substances. The aim of this medical thesis was to conduct a systematic review examining the neuroimaging correlates of the effects of psychedelics. We performed an electronic research through Medline and Science Direct...
Journal of Psychoactive Drugs
November 4, 2024
Aurore Bezo, Bruno Romeo, Y Le Strat et al.
1 citation
The aim of this study was to explore the perception of psychedelics within the medical population. Participants were asked by questionnaire about the potential of abuse, the somatic and psychiatric complications, and the risks of self-harm and aggression associated with the use of psychedelics using Likert Scales. A total of 407 participants were included. In our sample, the following means...
Journal of Psychoactive Drugs
July 3, 2024
Bruno Romeo, Ewen Kervadec, Baptiste Fauvel et al.
5 citations
Treating cannabis use disorder remains a significant challenge in the field of addiction medicine. Some recent studies point to psychedelic-assisted psychotherapy as a potential treatment option for substance use disorders. The objective of this study was therefore to explore the impact of naturalistic psychedelic experiences on cannabis use and psychological flexibility. An online...
Psychiatry Research
May 1, 2024
Bruno Romeo, Ewen Kervadec, Baptiste Fauvel et al.
48 citations
Psychotherapies assisted by psychedelic substances have shown promising results in the treatment of psychiatric disorders. The aim of this systematic review and meta-analysis was to evaluate safety data in human subjects. We carried out a search on MEDLINE, Embase and PsycINFO databases between 2000 and 2022. Standardized mean differences between different dose ranges and between acute and...
Alcohol and alcoholism (Oxford, Oxfordshire)
January 17, 2024
Ewen Kervadec, Baptiste Fauvel, Lana Strika-Bruneau et al.
15 citations
Alcohol use can be significantly associated with negative social, professional, and health outcomes. Even more so, alcohol use disorder (AUD) is a critical public health issue and major avoidable risk factor. This study aimed to examine the effect of a naturalistic psychedelic experience on alcohol use and related measures. A retrospective online survey was conducted on 160 individuals who...
Journal of Psychoactive Drugs
2023
Bruno Romeo, Baptiste Fauvel, S Dejean et al.
14 citations
Tobacco use disorder is a major public health concern. The aim of this study was to investigate the impact of a psychedelic experience in a natural context on tobacco use. A retrospective online survey was conducted on 173 individuals who reported having had a psychedelic experience while being smokers. Demographic information was collected, and characteristics of the psychedelic experience,...
Pharmaceuticals (Basel, Switzerland)
December 28, 2022
Raphaël Serreau, Ammar Amirouche, Amine Benyamina et al.
13 citations
Psychedelics are used for various pathologies of the central nervous system and are currently the subject of much research, some of which relates to the compounds contained in various Psilocybe-type hallucinogenic mushrooms. It is difficult, however, to obtain and purify sufficient quantities of these compounds from fungi to carry out biological studies, hence the need to develop simple and...
L'Encephale
August 1, 2021
Lucie Berkovitch, Bruno Romeo, Laurent Karila et al.
25 citations
Psychedelics are powerful psychoactive substances. Natural psychedelics have been used for millennia by human civilizations, in particular in Latin America, while synthetic psychedelics were discovered in the 50s, giving rise to a lot of research before they were prohibited. More recently, their therapeutic properties have been studied especially to help patients with psychiatric conditions,...
Journal of Psychiatric Research
May 1, 2021
Bruno Romeo, Marianne Hermand, Amélie Pétillion et al.
74 citations
The use of psychedelic treatments has shown very promising results in some psychiatric and addictive disorders, but not all patients achieved a response. The aim of this review is to explore the clinical and biological factors which could predict the response to psychedelics in psychiatric and addictive disorders. A systematic research was performed on MEDLINE, PsycInfo, Web of science, and...
Journal of Psychopharmacology
May 25, 2020
Bruno Romeo, Laurent Karila, Catherine Martelli et al.
115 citations
Background: Psychedelic drugs have shown an efficacy in some psychiatric disorders and have an original mechanism of action with a 5-HT 2A agonism. Aim: The aim of this meta-analysis was to assess by a quantitative analysis the putative efficacy of psychedelic drugs on depressive symptoms and to investigate the kinetic of this efficacy. Methods: We searched the MEDLINE and PsycINFO databases...
L information psychiatrique
2009
Lisa Blecha, Amine Benyamina
Résumé En France, le cannabis est le produit illicite le plus consommé. En 2005, 3,9 millions de français entre 15 et 75 ans avaient au moins un usage dans l’année. Le cannabis est utilisé depuis les temps anciens dans la pharmacopée médicale pour ses propriétés antispasmodiques et analgésiques, d’où la perception courante d’un remède naturel. Les études ont montré que le cannabis est associé...
Journal of Clinical Psychopharmacology
Ewen Kervadec, Aurore Bezo, Raphaël Serreau et al.
Ibogaine has garnered interest for its potential therapeutic properties in substance use and psychiatric disorders. Unlike classic psychedelics such as psilocybin or LSD, ibogaine remains underexplored in clinical research. This review aimed to synthesize the clinical literature on ibogaine use in humans over the past 3 decades, focusing on outcomes and safety. We conducted a narrative review...