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Lowan H. Stewart

6 papers in the library · 33 citations · publishing 2018-2026

Papers

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Interdisciplinary, Delphi-driven consensus guidelines on the use of intravenous ketamine infusions for depressive disorders from the American Society of Ketamine Physicians, Psychotherapists, and Practitioners (ASKP3).

Journal of Affective Disorders May 16, 2026 David S. Mathai, Madeleine Cluck, Amna M. Aslam et al. 1 citation

Background: Off-label use of intravenous ketamine (IVK) for depression is a widespread practice with limited regulation in the United States. There is an urgent need for current, evidence-informed treatment guidelines to facilitate patient safety, clinical decision-making, and care quality in real-world contexts. Methods: The American Society of Ketamine Physicians, Psychotherapists and...

MDMA-assisted therapy for major depressive disorder: A seven-month follow-up proof of principle trial

Journal of Psychiatric Research November 27, 2025 Tor-Morten Kvam, Ivar W Goksøyr, Joanna Róg et al. 3 citations

BACKGROUND: Major depressive disorder (MDD) is a leading cause of global disability, and current treatments often fail to provide sustained effectiveness. MDMA-assisted therapy (MDMA-AT) is a promising treatment for MDD. However, the long-term effects are not known. OBJECTIVES: To examine the long-term effects of MDMA-AT for MDD. METHODS: Twelve participants with MDD and an ongoing moderate to...

DOI: 10.1016/j.jpsychires.2025.11.030 (opens in new tab) Major depressive disorder Depression economics Proof of concept Depressive symptoms +4

Contextual and experiential aspects of the psychedelic experience predicting improvement in subjective wellbeing: results from a Norwegian internet convenience sample.

Frontiers in Pharmacology 2025 Paula Aarseth Tunstad, Tor-Morten Kvam, Malin V. Uthaug et al. 2 citations

Interest in the therapeutic effects of classical psychedelics has risen recently. However, little epidemiological knowledge exists about the use of classical psychedelics in Scandinavian countries. Additionally, there is a limited understanding of what factors drive self-reported improvement in wellbeing. The aim of this study was to investigate the relationship between the use of classical...

DOI: 10.3389/fphar.2025.1556299 (opens in new tab) Full text (opens in new tab) Psilocybin N,N-Dimethyltryptamine DMT Psychedelics hallucinogens Entheogens +8

Assessment of psychedelic--induced states: Norwegian translation and adaptation of the revised Mystical Experience Questionnaire (MEQ-30)

Journal of Psychedelic Studies July 12, 2024 Kristoffer Andreas Aamodt Andersen, Bjørn Holmøy, Lowan H. Stewart 1 citation

Abstract Background Previous international clinical trials have indicated that mystical experiences resulting from the consumption of classic psychedelic drugs, such as psilocybin, may represent a subjective psychological mechanism of action associated with therapeutic effects for various mental disorders. The revised 30-item Mystical Experience Questionnaire is one of several psychometric...

Study protocol for “MDMA-assisted therapy as a treatment for major depressive disorder: A proof of principle study”

Frontiers in Psychiatry October 26, 2022 Tor-Morten Kvam, Ivar W Goksøyr, Lowan H. Stewart et al. 11 citations

Background Major depressive disorder (MDD) is a world-leading cause of disability. The available treatments are not effective in all patients, and there is a significant need for more effective treatment options. Here we present the protocol for an investigator-initiated and publicly funded trial of MDMA-assisted therapy (MDMA-AT) for MDD. This single-site, open-label study investigates the...

Psykedeliske stoffer i behandling av angst, depresjon og avhengighet

Tidsskrift for Den norske legeforening 2018 Tor-Morten Kvam, Lowan H. Stewart, Ole A. Andreassen 15 citations

Psykedeliske stoffer i behandling av flere psykiske lidelser har vist lovende resultater, men studiene er små og har metodologiske utfordringer. Det er behov for systematiske kliniske studier for å skaffe solid dokumentasjon for effekt og etablere rutiner for overvåkning av mulige bivirkninger.