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Completed Phase 2 Interventional Accepts healthy volunteers Results available

Baclofen Effects on Marijuana Dependence

ClinicalTrials.gov ID: NCT02011516

Public ClinicalTrials.gov record NCT02011516. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 18, 2026, 5:45 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Randomized Placebo-controlled Study of Baclofen on Brain and Behavioral Outcomes in Marijuana Dependence

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Studies show that certain reminders of drug use such as the sight of someone using marijuana, pictures of blunts, particular moments throughout the day, prompt marijuana users to smoke marijuana. We are measuring the brain and behavioral responses of marijuana dependent individuals to these reminders (cues) We will examine brain responses during cue exposure and determine whether these responses are associated with treatment outcome. We are testing the hypothesis that the medication baclofen reduces brain responses during marijuana cue exposure and/or craving in marijuana dependent individuals. Baclofen is FDA-approved for other uses, but not for the treatment of marijuana dependence. Functional magnetic resonance imaging (fMRI) will be used to measure the brain's response to marijuana cues. fMRI is a painless technique that takes special pictures of the brain (or other parts of your body). It does not involve radiation or injections. Eligible participants will have a 50% chance of receiving placebo (sugar pill) and a 50% chance of receiving baclofen. Neither the participant nor study personnel will know whether participants are receiving baclofen or placebo. Participants will also receive twice weekly psychosocial treatment with a certified clinician. Twelve weeks of treatment will be followed by a 12 week follow up.

Study identification

NCT ID
NCT02011516
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
University of Pennsylvania
Other
Enrollment
47 participants

Conditions and interventions

Interventions

Drug · Behavioral

Eligibility (public fields only)

Age range
18 Years to 60 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 30, 2013
Primary completion
May 31, 2015
Completion
May 31, 2015
Last update posted
Jun 13, 2017

2013 – 2015

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
University of Pennsylvania Center for Studies of Addiction Philadelphia Pennsylvania 19104

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02011516, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jun 13, 2017 · Synced Sep 18, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT02011516 live on ClinicalTrials.gov.

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