Can talk therapy curb alcohol and cannabis cravings? new study aims to find out
NCT ID NCT05855668
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is testing whether 12 weeks of group cognitive behavioral therapy (CBT) can help people reduce their alcohol or cannabis use. Researchers will enroll 400 adults with alcohol use disorder or cannabis use disorder. Participants will attend weekly CBT sessions, and the study will track changes in drinking days, cannabis use, and cravings.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- cognitive behavioral therapy (CBT)
- What this could lead to
- If successful, this could show that CBT is an effective way to reduce alcohol and cannabis use and cravings.
- What could go wrong
- This is a relatively small, early-stage study without a placebo group, so results may not be conclusive. The therapy requires commitment and may not work for everyone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 400 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2022
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Patient has been referred to or intends to participate in either the AUD or CUD Integrated Care Pathway (and is therefore willing to participate in group psychotherapy). 2. Able to communicate and provide informed consent in English. 3. 18 years of age or older. 4. Willing and able to safely abstain from substances (other than nicotine or tobacco products), including alcohol and cannabis, for 12 hours prior to the eligibility and task-based assessments. 5. Meets DSM-5 diagnostic criteria for AUD (AUD group) or CUD (CUD group) 6. Meets criteria for risky drinking, defined as \> 10 drinks per week for females and \> 15 drinks per week for males on average over the past 30 days (AUD group) or daily or near-daily cannabis use over the past 30 days, defined as ≥ 4 days of cannabis use per week on average (CUD group) Exclusion Criteria: 1. Active suicidal ideation at time of assessment. 2. Suicide attempt within the past month. 3. Unstable psychiatric or medical status (e.g., acute psychosis or mania) or unstable use of another substance that may interfere with participation in groups (e.g. active fentanyl use). 4. Enrollment in another study that conflicts with the procedures or scientific integrity of this study. 5. Individuals planning to be out of the province for a substantial amount of time during the treatment period will not be permitted to enroll.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Centre for Addiction and Mental Health
RECRUITINGToronto, Ontario, M6J 1H4, Canada
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Other studies related to the condition(s) this trial covers.
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- Can MDMA plus therapy help veterans fight both PTSD and alcohol addiction?
- Can rewards and remote coaching help people cut back on cannabis?