Psilocybin-Assisted Psychotherapy for Alcohol Use Disorder

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age22-65
SponsorUniversity of Calgary

About this trial

The aim of this study is to determine if a single dose of psilocybin administered with motivational enhancement therapy (MET) can reduce heavy drinking in patients with an alcohol use disorder (AUD).

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Meets DSM-5 AUD criteria of at least moderate severity

Meets heavy drinking requirements (heavy drinking days, number of drinks) in past 30 days

Desire to decrease alcohol consumption

Limited lifetime hallucinogen use

Disqualifiers

Severe or moderate substance use disorder other than alcohol or nicotine in past 6 months

Diagnosis of schizophrenia, bipolar disorders or first-degree relative with diagnosis

Active suicidal ideation or serious attempt within past 3 years

Currently pregnant, nursing, or trying to become pregnant

Trial design

Design model

Parallel

Treatments tested in this trial

  • Psilocybin

    Drug

    Single dosing session followed by 5 MET weekly sessions starting 24hrs after dosing

Treatment groups

128 Participants
are divided into 2 treatment groups
Group A: High Dose (25mg)Experimental treatment 1 intervention
Group B: Low dose (1mg)Active comparator 1 intervention

Trial outcomes

Primary outcomes

1

Heavy drinking

Percent heavy drinking days (TLFB)

Time frame
Change from baseline to 1-, 4-, and 12-weeks post-dosing

Secondary outcomes

1

Abstinence

Days abstinent (TLFB)

Time frame
Change from baseline to 1-, 4-, and 12-weeks post-dosing
2

Biomarkers of alcohol consumption

Phosphatidylethanol (Peth)

Time frame
Change from baseline to 1-, 4-, and 12-weeks post-dosing
3

Alcohol cue reactivity

Alcohol urge questionnaire (AUQ)

Time frame
Change from baseline to 1-, 4-, and 12-weeks post-dosing
4

Cognitive flexibility

Berg Card Sorting Task

Time frame
Change from baseline to 1-, 4-, and 12-weeks post-dosing

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

University of Calgary

Lead sponsor

Johns Hopkins University

Collaborator

University of Maryland

Collaborator

Canadian Institutes of Health Research (CIHR)

Collaborator