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Clinical Study of DMT in Healthy Adults

Inhaled N, N-Dimethyltryptamine: a Phase I Study in Healthy Adults

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05573568
Enrollment
27
Registered
2022-10-10
Start date
2022-06-01
Completion date
2022-11-14
Last updated
2023-02-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Keywords

N,N-DMT, DMT, N,N-Dimethyltryptamine, Healthy Volunteers

Brief summary

This study aims to evaluate the acute and subacute effects of an inhaled N, N-Dimethyltryptamine in healthy individuals.

Detailed description

Participants will receive N, N-Dimethyltryptamine administered in two dosing sessions: an initial low-dose safety session and subsequent intermediate-dose treatment, in a fixed order and 2h apart.

Interventions

DMT will be administered using a vaporizer device in a single ascending fixed-order dosing regimen

Sponsors

Universidade Federal do Rio Grande do Norte
CollaboratorOTHER
Biomind Labs Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* prior experience with N,N-Dimethyltryptamine (DMT) * present proof of vaccination against COVID-19 (Coronavírus)

Exclusion criteria

* heart failure * liver failure * kidney failure * resistant hypertension * arrhythmia * valvular heart disease * chronic obstructive pulmonary disease * asthma * severe obesity * epilepsy * pregnancy * thyroid disorders * family diagnosis or suspicion of genetic monoamine oxidase deficiency * previous adverse response to psychedelic substances * present or past symptoms or family members with a psychotic disorder * dissociative identity disorder * bipolar disorder * prodromal symptoms of schizophrenia * abuse of alcohol or other psychoactive substances, except tobacco * acute or sub-acute risk of suicide * flu-like symptoms

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Treatment-Emergent Adverse Events as clinical and psychiatry symptoms assessed by qualitative medical/clinical-psychiatry evaluationup to 1 month after dosingEvaluate clinical and psychiatry acute risks after DMT treatments assessed by qualitative medical evaluation after dosing.
Blood Pressureup to 2 hours after each doseAssessed 20 times on each dose via systolic and diastolic blood pressure
Heart rateup to 2 hours after each doseAssessed 20 times on each dose
Respiratory rateup to 2 hours after each doseAssessed 20 times on each dose
Oxygen saturationup to 2 hours after each doseAssessed 20 times on each dose

Secondary

MeasureTime frameDescription
Plasma level of aspartate transaminase (AST)up to 2 hours after each doseAssessed 2 times on each dose
Plasma level of alanine transaminase (ALT)up to 2 hours after each doseAssessed 2 times on each dose
Plasma level of cortisolup to 2 hours after each doseAssessed 2 times on each dose
Evaluate the subjective effects of DMTup to 2 hours after each doseAssessment of the acute subjective effects of DMT by Hallucinogen Rating Scale (HRS) after each dosing. Higher scores indicate more intense psychedelic subjective effects.
Evaluate acute effects on cerebral activity using electroencephalography before, during and after the dosingup to 2 hours after each doseAssessment of the electrical cerebral activity in different bandwidth as alpha, beta, theta waves by EEG before, during and after each dosing.
Plasma level of glucoseup to 2 hours after each doseAssessed 2 times on each dose
Evaluate the impact of after DMT on satisfaction with life using scaleup to 1 month after dosingAssessment of satisfaction with life in different time points as baseline, 1, 2, 7, 14 and 28 days after dosing using the Satisfaction with Life Scale (SWL). Scores ranging from 5 to 35. Higher scores indicate greater satisfaction with life.
Evaluate the impact of DMT on trait and state of anxiety using scaleup to 1 month after dosingAssessment of trait and state anxiety in different time points as baseline, 1, 2, 7, 14 and 28 days after dosing using the State-Trait Anxiety Inventory (STAI). Scores ranging from 0 to 63. Higher scores indicate more severe anxiety.
Evaluate the impact of DMT on quality of life using scaleup to 1 month after dosingAssessment of quality of life in different time points as baseline, 14 and 28 days after dosing using the questionnaires World Health Organization Quality of Life Assessment Instrument (WHOQOL-BREF). Scores ranging from 0 to 100. Higher scores indicate better quality of life.
Evaluate the impact of DMT on spirituality, religiousness and personal beliefsup to 1 month after dosingAssessment of spirituality, religiousness and personal beliefs in different time points as baseline, 14 and 28 days after dosing using the World Health Organization Quality of Life Assessment Instrument for Spirituality, Religiousness and Personal Beliefs (WHOQOL-SRPB). The scale is divided in 8 domains, scores ranging from 4 to 20 in each domain. Higher levels indicate higher level of spirituality, religiousness and personal beliefs.
Evaluate the impact of DMT on affect using scaleup to 1 month after dosingAssessment of affect in different time points as baseline, 1, 2, 7, 14 and 28 days after dosing using the questionnaire Positive and Negative Affect Schedule (PANAS). To score the positive affect items 1, 3, 5, 9, 10, 12, 14, 16, 17 and 19 are summed up. Scores ranging from 10 to 50. Higher scores indicate higher levels of positive affect. To score the negative affect items 2, 4, 6, 7, 8, 11, 13, 15, 18 and 20 are summed up. Scores ranging from 10 to 50. Higher scores indicate higher levels of negative affect
Assess DMT Plasma Concentration-Time Profile using High-performance liquid chromatographyup to 2 hours after each doseEvaluate changes in serum DMT concentration over time measured in 2, 5, 10, 15 and 120 minutes after each dosing.
Plasma level of total cholesterolup to 2 hours after each doseAssessed 2 times on each dose
Plasma level of C-reactive protein (CRP)up to 2 hours after each doseAssessed 2 times on each dose
Plasma level of ureaup to 2 hours after each doseAssessed 2 times on each dose
Plasma level of creatinineup to 2 hours after each doseAssessed 2 times on each dose

Countries

Brazil

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 5, 2026