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Psilocybin for Opioid Use Disorder (OUD)

NCT06796062 · Status: RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 480

Last updated 2026-01-23

No results posted yet for this study

Summary

This is a double-blind, adaptive, 2-stage, multi-site, phase 2 randomized controlled clinical trial designed to evaluate effects of moderate and high dose psilocybin, relative to low-dose psilocybin control, in OUD patients who continue to use illicit opioids in spite of adherence to standard-of-care treatment with methadone. Up to 480 participations will be consented to yield 240 randomized participants. This study is part of the NIH HEAL Initiative (https://heal.nih.gov/).

In Stage 1, subjects will be randomly assigned to one of three groups: psilocybin 30 mg (high dose), psilocybin 20 mg (medium dose), and psilocybin 1 mg (control condition). By the end of Stage 1, an interim statistical analysis will be performed. The study will proceed to Stage 2 if at least one of the active dosages of psilocybin demonstrates 1) acceptable safety, based on analysis of safety data from Stage 1; and 2) conditional power of at least 25%, based on effect size estimates for the primary opioid use outcome (weeks of biologically-verified abstinence during 24 weeks of follow-up). Using a priori decision rules, the interim analysis will determine which of the active treatment groups (30 mg, 20 mg, or both) will be retained in Stage 2 of the trial. Stage 2 will continue the study, using the same treatment and assessment protocols, but retaining only the active dosage or dosages with a high probability of demonstrating efficacy relative to the psilocybin 1 mg control condition.

The primary aims are to 1) Evaluate safety and efficacy outcomes in Stage 1 subjects in order to optimize design of the Stage 2, 2) Determine whether treatment with a single high (30 mg) or medium (20 mg) dose of psilocybin improves OUD treatment outcomes, relative to psilocybin 1 mg (control condition), in patients who continue to use illicit opioids despite adherence to methadone treatment, 3) Evaluate the effects of high-dose psilocybin and medium dose psilocybin on self-reported OUD-related neuropsychopathology, and 4) Identify likely responders to psilocybin treatment by using machine learning to model post-treatment OUD outcomes, based on pretreatment characteristics including all relevant clinical data, evaluations, and questionnaires.

Conditions

Interventions

DRUG

Psilocybin

One capsule (1 mg, 20 mg, or 30 mg) administered once orally

Sponsors & Collaborators

Principal Investigators

  • Michael Bogenschutz, MD · NYU Langone Health

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-12-17
Primary Completion
2029-02-28
Completion
2029-02-28
FDA Drug
Yes

Countries

  • United States

Study Locations

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Entities

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Diseases
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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06796062 on ClinicalTrials.gov