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Peter Oehen

7 papers in the library · 611 citations · publishing 2012-2026

Papers

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Development of the MDMA-Assisted Psychotherapy Side Effects Tool (M-SET): a Delphi study.

BMJ Open May 11, 2026 Julia Colcott, Alexandre A. Guerin, Olivia Carter et al.

Despite growing interest in the therapeutic potential of 3,4-methylenedioxymethamphetamine (MDMA), no targeted measure to systematically assess side effects of MDMA-assisted psychotherapy (MDMA-AP) exists. Our aim was to develop an MDMA-Assisted Psychotherapy Side Effects Tool (M-SET) to capture side effects over the course of MDMA-AP. Informed by a systematic review and a review of other...

A model training curriculum for psychedelic, psycholytic, and entactogen-assisted psychotherapy.

Journal of Psychopharmacology June 10, 2025 Torsten Passie, Anja Loizaga-Velder, Alicia Danforth et al. 4 citations

The authors offer a model for curriculum for education and training in substance-assisted psychotherapy (SAP), that is, psychedelic, psycholytic, and entactogen/MDMA (3,4-methylenedioxymethamphetamine)-assisted psychotherapy, addressing both the detailed contents of training and the question of experiential training. All authors of this model have an abiding interest and extensive experience in...

DOI: 10.1177/02698811241282759 (opens in new tab) Full text (opens in new tab) Psychedelic therapy MDMA-Assisted Psychotherapy Education of therapists Psycholytic therapy +7

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

Can psychedelics enhance group psychotherapy? A discussion on the therapeutic factors.

Journal of Psychopharmacology February 28, 2023 Polina Ponomarenko, Federico Seragnoli, Abigail E. Calder et al. 22 citations

BACKGROUND: Despite the growth of psychedelic research, psychedelic-assisted group psychotherapy (PAGP) has received little attention in comparison to individual psychedelic-assisted psychotherapy models. METHODS: In this article, we aim to discuss the therapeutic potential of PAGP, as well as outline existing models and the challenges of this approach. Using Irvin Yalom's 11 therapeutic...

DOI: 10.1177/02698811231155117 (opens in new tab) Full text (opens in new tab) Psychedelic therapy Group therapy Mental health treatment Therapeutic integration +1

Using a MDMA- and LSD-Group Therapy Model in Clinical Practice in Switzerland and Highlighting the Treatment of Trauma-Related Disorders

Frontiers in Psychiatry April 25, 2022 Peter Oehen, Peter Gasser 70 citations

The Swiss Federal Act on Narcotics allows for the restricted medical use of scheduled psychotropic drugs in cases of resistance to standard treatment, and preliminary evidence of efficacy of the scheduled drug for the particular condition. Since 2014, the authors have obtained 50 licenses on a case-by-case basis and developed a psychedelic-assisted group therapy model utilizing MDMA and LSD....

DOI: 10.3389/fpsyt.2022.863552 (opens in new tab) MDMA Psychotherapist Dissociative Clinical psychology

Acute subjective effects in LSD- and MDMA-assisted psychotherapy

Journal of Psychopharmacology October 8, 2020 Yasmin Schmid, Peter Gasser, Peter Oehen et al. 82 citations

Background: Lysergic acid diethylamide (LSD) and 3,4-methylenedioxymethamphetamine (MDMA) were used in psychotherapy in the 1960s–1980s, and are currently being re-investigated as treatments for several psychiatric disorders. In Switzerland, limited medical use of these substances is possible in patients not responding to other treatments (compassionate use). Methods: This study aimed to...

A randomized, controlled pilot study of MDMA (±3,4-Methylenedioxymethamphetamine)-assisted psychotherapy for treatment of resistant, chronic Post-Traumatic Stress Disorder (PTSD)

Journal of Psychopharmacology October 31, 2012 Peter Oehen, Rafael Traber, Verena Widmer et al. 407 citations

Psychiatrists and psychotherapists in the US (1970s to 1985) and Switzerland (1988–1993) used MDMA legally as a prescription drug, to enhance the effectiveness of psychotherapy. Early reports suggest that it is useful in treating trauma-related disorders. Recently, the first completed pilot study of MDMA-assisted psychotherapy for PTSD yielded encouraging results. Designed to test the safety...

DOI: 10.1177/0269881112464827 (opens in new tab) MDMA Randomized controlled trial Placebo Adverse effect