Actively Recruiting

Phase 1
Age: 21Years - 65Years
All Genders
NCT04161066

Adjunctive Effects of Psilocybin and a Formulation of Buprenorphine

Led by University of Wisconsin, Madison · Updated on 2025-10-15

10

Participants Needed

1

Research Sites

285 weeks

Total Duration

On this page

Sponsors

U

University of Wisconsin, Madison

Lead Sponsor

H

Heffter Research Institute

Collaborating Sponsor

AI-Summary

What this Trial Is About

Primary Aim: In participants with OUD, to characterize adverse events associated with adding two psilocybin doses to a stable buprenorphine-naloxone formulation. Secondary Aim: To evaluate the effect of psilocybin treatment on the effectiveness of a buprenorphine-naloxone maintenance therapy. Secondary Aim: To evaluate the effect of concurrent buprenorphine-naloxone use on the effects of psilocybin therapy. Descriptive Aim: To describe any changes in self-efficacy, quality of life, pain.

CONDITIONS

Official Title

Adjunctive Effects of Psilocybin and a Formulation of Buprenorphine

Who Can Participate

Age: 21Years - 65Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Aged 21 to 65 years
  • Able to read, speak, and understand spoken and written English
  • Diagnosis of moderate or severe opioid use disorder (OUD)
  • Current opioid misuse on at least 10 of the last 30 days or at least 5 of last 30 days if already on buprenorphine/naloxone
  • Able to achieve stable daily dose of buprenorphine-naloxone controlling withdrawal symptoms
  • Persons of childbearing potential must agree to effective contraception throughout the study
  • Ability and willingness to attend all study visits, preparatory and follow-up sessions, and evaluations
  • Healthy kidney function
  • Able to provide contact information for a local support person available during treatment and observation periods
Not Eligible

You will not qualify if you...

  • Taking buprenorphine or buprenorphine formulation for over four months immediately prior to study contact
  • Receiving methadone pharmacotherapy of any duration
  • Participating in a drug treatment court program or other legal supervision
  • Inadequately treated hypertension
  • Current acute coronary syndrome or angina
  • Evidence of ischemic disease, cardiac conduction defects, or ventricular arrhythmias on ECG
  • History of heart transplant
  • Current insulin-dependent diabetes
  • Urine drug test positive for non-prescribed drugs of abuse
  • Any other condition making the study unsuitable as determined by the principal investigator

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 1 location

1

University of Wisconsin

Madison, Wisconsin, United States, 53705

Actively Recruiting

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Research Team

P

PROTEA Research

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

HEALTH_SERVICES_RESEARCH

Number of Arms

1

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