Evidence map›Paper›PMID 41266565›Full record

ArticleScientific reports2025

Acute experiences and persisting psychological effects associated with an encapsulated DMT-harmala alkaloid combination: results of a phase 1 study.

Daniel Perkins, Andreas Halman, Anna Urokohara, Joeseph Palumbo, Mitchell Low, Simon Ruffell, Nicole Galvão-Coelho, Lisa Collins, Amanda Norman, Jerome Sarris

Abstract readClinical Trial, Phase I
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Daniel PerkinsMelbourne School of Population and Global Health, The University of Melbourne, Parkville, VIC, Australia. d.perkins@unimelb.edu.au.ORCID http://orcid.org/0000-0002-2055-1649
Andreas HalmanMelbourne School of Population and Global Health, The University of Melbourne, Parkville, VIC, Australia.ORCID http://orcid.org/0000-0001-5248-4121
Anna UrokoharaNeurala Biosciences, Carlton, VIC, Australia.ORCID http://orcid.org/0009-0004-6960-0327
Joeseph PalumboNeurala Biosciences, Carlton, VIC, Australia.
Mitchell LowNICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia.ORCID http://orcid.org/0000-0003-2021-1924
Simon RuffellMelbourne School of Population and Global Health, The University of Melbourne, Parkville, VIC, Australia.ORCID http://orcid.org/0000-0002-8250-4426
Nicole Galvão-CoelhoDepartment of Physiology and Behavior, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil.ORCID http://orcid.org/0000-0002-4887-8635
Lisa CollinsDepartment of Addiction Medicine, St Vincent's Hospital Melbourne, Fitzroy, VIC, Australia.ORCID http://orcid.org/0000-0003-0308-4214
Amanda NormanDepartment of Addiction Medicine, St Vincent's Hospital Melbourne, Fitzroy, VIC, Australia.ORCID http://orcid.org/0000-0002-5183-1192
Jerome SarrisNeurala Biosciences, Carlton, VIC, Australia.ORCID http://orcid.org/0000-0001-9287-8854

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Acute subjective experiences induced by psychedelics have been identified as important mediators of therapeutic outcomes in many studies. Mystical experiences specifically, have been correlated with a range of therapeutic outcomes including reductions in symptoms of depression, anxiety and addiction. This paper assesses acute subjective experiences induced by an encapsulated DMT-harmala alkaloid product and associations with persisting psychological effects. Botanically derived purified and partially purified formulations containing precise levels of DMT and three harmala alkaloids were administered in 17 dosing sessions to 9 healthy volunteers, with acute subjective experiences data collected via three psychometric instruments (MEQ-30, 5D-ASC, and newly adapted SIME). Pearson's correlations and linear mixed models investigated dose-response relationships and associations with persisting psychological effects. Further analysis compared acute subjective experience scores in this study to ayahuasca drinkers in various naturalistic contexts. Strong, significant positive correlations were identified between total dose and MEQ and SIME scores. The purified DMT-harmala formulation reliably elicited strong acute subjective experiences, with scores exceeding those reported in most previous studies. These experiences were robustly associated with a range of beneficial persisting psychological effects. Findings suggest that this formulation warrants further investigation in controlled clinical trials with relevant patient populations to assess therapeutic potential and safety.

Indexed as

AlkaloidsHallucinogensHarmineAdultFemaleHealthy VolunteersHumansMaleMiddle AgedYoung AdultAlkaloidsHallucinogensHarmineClinical studyDMTHarmalaMystical experiencesPsychedelics

Identifiers

PMID41266565
PMCPMC12635207

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.