Pharmacokinetics, Safety, and Tolerability of Intramuscular 5-MeO-DMT in Healthy Volunteers
A Phase 1, First-in-human, Double-blind, Placebo-controlled, Randomized, Single- and Multiple-ascending-dose Study to Determine the Safety, Tolerability, and Pharmacokinetics of 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) Administered by Intramuscular Injection in Healthy Subjects
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 1
Contacts and Locations
Study Contact
Study Contact
- Name: Christina Behlke, PhD
- Phone Number: 608-298-4854
- Email: ClinicalTrials@usonainstitute.org
Study Locations
-
-
Kansas
-
Overland Park, Kansas, United States, 66212
- Altasciences Clinical Kansas, Inc
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Healthy adult male or female.
- Aged at least 18 years but not older than 65 years, inclusive.
- Body mass index (BMI) within 18.0 kg/m2 to 32.0 kg/m2, inclusive.
Exclusion Criteria:
- History of significant hypersensitivity to the IP or any related products (including excipients of the formulations) as well as severe hypersensitivity reactions (like angioedema) to any drugs.
- Significant history or clinical manifestation of any metabolic, allergic, dermatological, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal, neurological, respiratory, or endocrine disorders, as determined by the investigator (or designee).
- Participants who, in the opinion of the investigator (or designee), should not participate in this study.
- Participant is participating in another study with a medical device or IP within the last 30 days prior to first study drug administration.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Sequential Assignment
- Masking: Triple
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Cohort 1 - 0.5 mg single-dose
A single 0.5 mg 5-MeO-DMT or placebo dose administered intramuscularly (randomized as 5 active and 1 placebo subject).
|
The 5-MeO-DMT drug product is comprised of the appropriate concentration of 5-MeO-DMT succinate salt drug substance in solution with 0.9% sodium chloride injection solution (USP) in a 5 mL glass vial, and is administered intramuscularly.
Other Names:
The placebo is commercially available 0.9% sodium chloride solution (USP) for injection.
The placebo is provided by the pharmacy in single-use sterile syringes of the appropriate dose.
Other Names:
|
|
Experimental: Cohort 2 - 2.5 mg single-dose
A single 2.5 mg 5-MeO-DMT or placebo dose administered intramuscularly (randomized as 5 active and 1 placebo subject).
|
The 5-MeO-DMT drug product is comprised of the appropriate concentration of 5-MeO-DMT succinate salt drug substance in solution with 0.9% sodium chloride injection solution (USP) in a 5 mL glass vial, and is administered intramuscularly.
Other Names:
The placebo is commercially available 0.9% sodium chloride solution (USP) for injection.
The placebo is provided by the pharmacy in single-use sterile syringes of the appropriate dose.
Other Names:
|
|
Experimental: Cohort 3 - 4.5 mg single-dose
A single 4.5 mg 5-MeO-DMT or placebo dose administered intramuscularly (randomized as 5 active and 1 placebo subject).
|
The 5-MeO-DMT drug product is comprised of the appropriate concentration of 5-MeO-DMT succinate salt drug substance in solution with 0.9% sodium chloride injection solution (USP) in a 5 mL glass vial, and is administered intramuscularly.
Other Names:
The placebo is commercially available 0.9% sodium chloride solution (USP) for injection.
The placebo is provided by the pharmacy in single-use sterile syringes of the appropriate dose.
Other Names:
|
|
Experimental: Cohort 4 - 7 mg single-dose
A single 7 mg 5-MeO-DMT or placebo dose administered intramuscularly (randomized as 5 active and 1 placebo subject).
|
The 5-MeO-DMT drug product is comprised of the appropriate concentration of 5-MeO-DMT succinate salt drug substance in solution with 0.9% sodium chloride injection solution (USP) in a 5 mL glass vial, and is administered intramuscularly.
Other Names:
The placebo is commercially available 0.9% sodium chloride solution (USP) for injection.
The placebo is provided by the pharmacy in single-use sterile syringes of the appropriate dose.
Other Names:
|
|
Experimental: Cohort 5 - 10 mg single-dose
A single 10 mg 5-MeO-DMT or placebo dose administered intramuscularly (randomized as 5 active and 1 placebo subject).
|
The 5-MeO-DMT drug product is comprised of the appropriate concentration of 5-MeO-DMT succinate salt drug substance in solution with 0.9% sodium chloride injection solution (USP) in a 5 mL glass vial, and is administered intramuscularly.
Other Names:
The placebo is commercially available 0.9% sodium chloride solution (USP) for injection.
The placebo is provided by the pharmacy in single-use sterile syringes of the appropriate dose.
Other Names:
|
|
Experimental: Cohort 7 - multiple-dose, 3 hour interval
Administration of up to two 5-MeO-DMT (2.5 mg followed by 4.5 mg) or placebo doses administered intramuscularly within a single day with a 3 hour dose interval (randomized as 5 active and 1 placebo subject).
|
The 5-MeO-DMT drug product is comprised of the appropriate concentration of 5-MeO-DMT succinate salt drug substance in solution with 0.9% sodium chloride injection solution (USP) in a 5 mL glass vial, and is administered intramuscularly.
Other Names:
The placebo is commercially available 0.9% sodium chloride solution (USP) for injection.
The placebo is provided by the pharmacy in single-use sterile syringes of the appropriate dose.
Other Names:
|
|
Experimental: Cohort 8 - multiple-dose, 3 hour interval
Administration of up to two 5-MeO-DMT (2.5 mg followed by 7 mg) or placebo doses administered intramuscularly within a single day with a 3 hour dose interval (randomized as 5 active and 1 placebo subject).
|
The 5-MeO-DMT drug product is comprised of the appropriate concentration of 5-MeO-DMT succinate salt drug substance in solution with 0.9% sodium chloride injection solution (USP) in a 5 mL glass vial, and is administered intramuscularly.
Other Names:
The placebo is commercially available 0.9% sodium chloride solution (USP) for injection.
The placebo is provided by the pharmacy in single-use sterile syringes of the appropriate dose.
Other Names:
|
|
Experimental: Cohort 6 - 13 mg single-dose
A single 5-MeO-DMT 13 mg or placebo dose administered intramuscularly (randomized as 5 active and 1 placebo subject).
|
The 5-MeO-DMT drug product is comprised of the appropriate concentration of 5-MeO-DMT succinate salt drug substance in solution with 0.9% sodium chloride injection solution (USP) in a 5 mL glass vial, and is administered intramuscularly.
Other Names:
The placebo is commercially available 0.9% sodium chloride solution (USP) for injection.
The placebo is provided by the pharmacy in single-use sterile syringes of the appropriate dose.
Other Names:
|
|
Experimental: Cohort 9 - multiple-dose, 3 hour interval
Administration of up to two 5-MeO-DMT (2.5 mg followed by 10.5 mg) or placebo doses administered intramuscularly within a single day with a 3 hour dose interval (randomized as 5 active and 1 placebo subject).
|
The 5-MeO-DMT drug product is comprised of the appropriate concentration of 5-MeO-DMT succinate salt drug substance in solution with 0.9% sodium chloride injection solution (USP) in a 5 mL glass vial, and is administered intramuscularly.
Other Names:
The placebo is commercially available 0.9% sodium chloride solution (USP) for injection.
The placebo is provided by the pharmacy in single-use sterile syringes of the appropriate dose.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Number of participants with Treatment Emergent Adverse Events as coded by MedDRA and assessed by CTCAE v4.0
Time Frame: Up to 30 Days
|
Number of participants with TEAEs following administration of 5-MeO-DMT.
|
Up to 30 Days
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Plasma pharmacokinetic parameters of 5-MeO-DMT and bufotenine following a single-dose and multiple-doses of 5-MeO-DMT
Time Frame: Up to 24 hours
|
For PK analysis, blood samples will be collected before and up to 24 hours after the intramuscular administration of 5-MeO-DMT to determine 5-MeO-DMT and bufotenine serum concentrations.
|
Up to 24 hours
|
|
Urine pharmacokinetic parameters of 5-MeO-DMT and bufotenine following a single-dose and multiple-doses of 5-MeO-DMT
Time Frame: Up to 24 hours
|
For PK analysis, urine samples will be collected before and up to 24 hours after the intramuscular administration of 5-MeO-DMT to determine 5-MeO-DMT and bufotenine urine concentrations.
|
Up to 24 hours
|
Collaborators and Investigators
Sponsor
Sponsor
Publications and helpful links
General Publications
- Reckweg J, Mason NL, van Leeuwen C, Toennes SW, Terwey TH, Ramaekers JG. A Phase 1, Dose-Ranging Study to Assess Safety and Psychoactive Effects of a Vaporized 5-Methoxy-N, N-Dimethyltryptamine Formulation (GH001) in Healthy Volunteers. Front Pharmacol. 2021 Nov 25;12:760671. doi: 10.3389/fphar.2021.760671. eCollection 2021.
- Shen HW, Jiang XL, Winter JC, Yu AM. Psychedelic 5-methoxy-N,N-dimethyltryptamine: metabolism, pharmacokinetics, drug interactions, and pharmacological actions. Curr Drug Metab. 2010 Oct;11(8):659-66. doi: 10.2174/138920010794233495.
- Barsuglia J, Davis AK, Palmer R, Lancelotta R, Windham-Herman AM, Peterson K, Polanco M, Grant R, Griffiths RR. Intensity of Mystical Experiences Occasioned by 5-MeO-DMT and Comparison With a Prior Psilocybin Study. Front Psychol. 2018 Dec 6;9:2459. doi: 10.3389/fpsyg.2018.02459. eCollection 2018.
- Davis AK, Barsuglia JP, Lancelotta R, Grant RM, Renn E. The epidemiology of 5-methoxy- N, N-dimethyltryptamine (5-MeO-DMT) use: Benefits, consequences, patterns of use, subjective effects, and reasons for consumption. J Psychopharmacol. 2018 Jul;32(7):779-792. doi: 10.1177/0269881118769063. Epub 2018 Apr 30.
- Ermakova AO, Dunbar F, Rucker J, Johnson MW. A narrative synthesis of research with 5-MeO-DMT. J Psychopharmacol. 2022 Mar;36(3):273-294. doi: 10.1177/02698811211050543. Epub 2021 Oct 19.
- Uthaug MV, Lancelotta R, van Oorsouw K, Kuypers KPC, Mason N, Rak J, Sulakova A, Jurok R, Maryska M, Kuchar M, Palenicek T, Riba J, Ramaekers JG. A single inhalation of vapor from dried toad secretion containing 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) in a naturalistic setting is related to sustained enhancement of satisfaction with life, mindfulness-related capacities, and a decrement of psychopathological symptoms. Psychopharmacology (Berl). 2019 Sep;236(9):2653-2666. doi: 10.1007/s00213-019-05236-w. Epub 2019 Apr 13.
- Sherwood AM, Claveau R, Lancelotta R, Kaylo KW, Lenoch K. Synthesis and Characterization of 5-MeO-DMT Succinate for Clinical Use. ACS Omega. 2020 Dec 2;5(49):32067-32075. doi: 10.1021/acsomega.0c05099. eCollection 2020 Dec 15.
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Actual)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- MEO101
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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