NCT05322954

Brief Summary

The purpose of this research study is to investigate the safety and feasibility of two (2) oral doses of psilocybin when combined with behavioral support for methamphetamine use disorder (MUD). Participants have a diagnosis of methamphetamine use disorder (MUD). Participants can expect to be actively engaged in the study for up to 26 weeks.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
12

participants targeted

Target at below P25 for phase_1

Timeline
1mo left

Started Mar 2023

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress99%
Mar 2023May 2026

First Submitted

Initial submission to the registry

April 4, 2022

Completed
8 days until next milestone

First Posted

Study publicly available on registry

April 12, 2022

Completed
11 months until next milestone

Study Start

First participant enrolled

March 3, 2023

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2026

Last Updated

December 18, 2025

Status Verified

December 1, 2025

Enrollment Period

3.2 years

First QC Date

April 4, 2022

Last Update Submit

December 10, 2025

Conditions

Keywords

methamphetaminepsilocybinpsychedelicsstimulantssubstance use

Outcome Measures

Primary Outcomes (1)

  • Incidence of serious adverse events associated with oral psilocybin

    Incidence of serious adverse events attributable to psilocybin as categorized according to NCI Common Toxicity Criteria version 4.0. and assigned attribution (probably, possibly, and not related).

    Up to 26 weeks

Secondary Outcomes (4)

  • Number of participants who complete at least one dose of psilocybin

    Up to 26 weeks

  • Number of participants who complete two-month follow-up visit

    Up to 26 weeks

  • Changes in substance use

    Up to 26 weeks

  • Functional changes in psychedelic and addiction-related neurocircuitry using functional magnetic resonance imaging.

    Up to 26 weeks

Other Outcomes (1)

  • Changes in addiction-related constructs

    Up to 26 weeks

Study Arms (1)

Oral Psilocybin

EXPERIMENTAL

Psilocybin with psychological support: Psilocybin will be administered in the form of capsules, taken orally with water. Each participant will receive 2 doses, approximately 4 weeks apart.

Drug: Psilocybin

Interventions

25mg orally followed by 25 mg or 50 mg orally

Oral Psilocybin

Eligibility Criteria

Age25 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of methamphetamine use disorder

You may not qualify if:

  • Positive urine pregnancy at any time point during screening or study participation
  • Inadequately treated hypertension, defined as 2 blood pressure readings, 10 minutes apart, of greater than 140/90 mmHg systolic/diastolic
  • Current acute coronary syndrome or angina
  • History of heart transplant or stroke
  • Current use of and inability or unwillingness to taper off of medications that may interact with psilocybin
  • Current insulin dependence, due to Type I or Type II diabetes

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Wisconsin

Madison, Wisconsin, 53705, United States

Location

Related Links

MeSH Terms

Conditions

Substance-Related DisordersChemically-Induced Disorders

Interventions

Psilocybin

Condition Hierarchy (Ancestors)

Mental Disorders

Intervention Hierarchy (Ancestors)

Indole AlkaloidsAlkaloidsHeterocyclic CompoundsIndolesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingTryptaminesIndolizidinesIndolizines

Study Officials

  • Christopher Nicholas, PhD

    University of Wisconsin, Madison

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 4, 2022

First Posted

April 12, 2022

Study Start

March 3, 2023

Primary Completion (Estimated)

May 1, 2026

Study Completion (Estimated)

May 1, 2026

Last Updated

December 18, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations