Effects of Citicoline on Brain Function and Behavior in Marijuana-Dependent Individuals
Public ClinicalTrials.gov record NCT00158249. 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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Cannabis Dependence: Imaging and Medication Development - 1
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The Three Aims of this study are (only studies for Aim 1 were completed) 1. Measure the impact of citicoline on marihuana use patterns in subjects' individualized natural settings and responses to marihuana challenge using functional brain MRI scans. Hypothesis - 2 g/day citicoline will produce greater reductions in marihuana use and craving in heavy marihuana users than placebo citicoline over a 8-week treatment period as measured in their natural environments. The same participants will experience greater improved brain activation patterns and an improvement in cognitive functioning compared to placebo controlled subjects. 2. Measure the effects of citicoline on marihuana absorption and metabolism and determine if these changes parallel changes in subjective and physiological responses in a laboratory setting. Hypothesis - Chronic (8 weeks) treatment with 2 g/day citicoline will produce increases in subjective and physiological effects of both acute marihuana smoking and placebo marihuana smoking compared to chronic placebo citicoline. Citicoline will have no effect on marihuana pharmacokinetics. 3. Measure the effects of citicoline on marijuana-induced cue-induced craving and brain electrical activity (EEG). Hypothesis - Chronic (8 weeks) treatment with 2 g/day citicoline will reduce objective measures of marijuana cue-reactivity, and subjective reports of craving in response to marihuana cues will also be attenuated compared to chronic placebo citicoline treatment.
Study identification
- NCT ID
- NCT00158249
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 21 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 45 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
- Aug 31, 2009
- Primary completion
- Dec 31, 2012
- Completion
- Sep 30, 2014
- Last update posted
- Oct 21, 2014
2009 – 2014
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| McLean Hospital, Department of Psychiatry | Belmont | Massachusetts | 02478 9106 | — |
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 NCT00158249, 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 Oct 21, 2014 · Synced Sep 5, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00158249 live on ClinicalTrials.gov.