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Michael Ashton

8 papers in the library · 431 citations · publishing 2019-2025

Papers

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Population pharmacokinetic-pharmacodynamic modeling of co-administered N,N-dimethyltryptamine and harmine in healthy subjects.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie July 9, 2025 Angela Äbelö, John W Smallridge, Robin von Rotz et al. 3 citations

N,N-dimethyltryptamine (DMT) is a psychedelic compound commonly co-administered with the monoamine oxidase inhibitor harmine in ayahuasca-inspired formulations. However, the impact of harmine on DMT pharmacokinetics (PK) and pharmacodynamics (PD) remains insufficiently characterized. In this single-blind, randomized, two-arm, factorial, dose-finding study, 16 healthy participants (9 males, 7...

Psychological and physiological effects of extended DMT.

Journal of psychopharmacology (Oxford, England) 2024 Lisa Luan, Emma Eckernäs, Michael Ashton et al. 41 citations

N,N-Dimethyltryptamine (DMT) is a serotonergic psychedelic that induces a rapid and transient altered state of consciousness when inhaled or injected via bolus administration. Its marked and novel subjective effects make DMT a powerful tool for the neuroscientific study of consciousness and preliminary results show its potential role in treating mental health conditions. In a within-subjects,...

N, N-dimethyltryptamine forms oxygenated metabolites via CYP2D6 - an in vitro investigation.

Xenobiotica; the fate of foreign compounds in biological systems December 1, 2023 Emma Eckernäs, Alicia Macan-Schönleben, Moa Andresen-Bergström et al. 6 citations

N, N-dimethyltryptamine (DMT) is a psychedelic compound that has shown potential in the treatment of depression. Aside from the primary role of monoamine oxidase A (MAO-A) in DMT metabolism, the metabolic pathways are poorly understood. Increasing this understanding is an essential aspect of ensuring safe and efficacious use of DMT.This work aimed to investigate the cytochrome 450 (CYP)...

Optimized infusion rates for N,N-dimethyltryptamine to achieve a target psychedelic intensity based on a modeling and simulation framework.

CPT: pharmacometrics & systems pharmacology October 1, 2023 Emma Eckernäs, Jeroen Koomen, Christopher Timmermann et al. 1 citation

N,N-dimethyltryptamine (DMT) is a psychedelic compound that is being studied as a therapeutic option in various psychiatric disorders. Due to its short half-life, continuous infusion of DMT has been proposed to extend the psychedelic experience and potential therapeutic effects. The primary aim of this work was to design an infusion protocol for DMT based on a desired level of psychedelic...

N,N‐dimethyltryptamine affects electroencephalography response in a concentration‐dependent manner—A pharmacokinetic/pharmacodynamic analysis

CPT Pharmacometrics & Systems Pharmacology February 10, 2023 Emma Eckernäs, Christopher Timmermann, Robin Carhart-Harris et al. 15 citations

Abstract N,N‐dimethyltryptamine (DMT) is a psychedelic substance and is being used as a research tool in investigations of the neurobiology behind the human consciousness using different brain imaging techniques. The effects of psychedelics have commonly been studied using electroencephalography (EEG) and have been shown to produce suppression of alpha power and increase in signal diversity....

Population pharmacokinetic/pharmacodynamic modeling of the psychedelic experience induced by N,N‐dimethyltryptamine – Implications for dose considerations

Clinical and Translational Science September 11, 2022 Emma Eckernäs, Christopher Timmermann, Daniel Röshammar et al. 22 citations

Abstract N,N‐dimethyltryptamine (DMT) is a psychedelic compound that is believed to have potential as a therapeutic option in several psychiatric disorders. The number of clinical investigations with DMT is increasing. However, very little is known about the pharmacokinetic properties of DMT as well as any relationship between its exposure and effects. This study aimed to characterize...

Development and application of a highly sensitive LC-MS/MS method for simultaneous quantification of N,N-dimethyltryptamine and two of its metabolites in human plasma.

J Pharm Biomed Anal February 3, 2022 Emma Eckernäs, Adam Bendrioua, Chiara Cancellerini et al. 18 citations

Development and application of a highly sensitive LC-MS/MS method for simultaneous quantification of N,N-dimethyltryptamine and two of its metabolites in human plasma.

Neural correlates of the DMT experience assessed with multivariate EEG.

Sci Rep November 19, 2019 Christopher Timmermann, Leor Roseman, Michael Schartner et al. 325 citations

Studying transitions in and out of the altered state of consciousness caused by intravenous (IV) N,N-Dimethyltryptamine (DMT - a fast-acting tryptamine psychedelic) offers a safe and powerful means of advancing knowledge on the neurobiology of conscious states. Here we sought to investigate the effects of IV DMT on the power spectrum and signal diversity of human brain activity (6 female, 7...