Investigating Two rTMS Strategies to Treat Cannabis Use Disorder

Status Recruiting

Clinical Trial Summary

In this trial we will work with a group of participants who are having problems related to marijuana use (they have Cannabis Use Disorder) and who want to reduce the amount of marijuana they use or quit using marijuana completely. We are testing to see if a treatment called repetitive transcranial magnetic stimulation (rTMS) can help them achieve that goal when combined with a brief three-session counseling therapy. Participants will receive rTMS to one of two different parts of the brain (the dorsolateral prefrontal cortex--the DLPFC or the ventromedial prefrontal cortex--the vmPFC) to see if applying rTMS to one brain area is more helpful than the other brain area.

Clinical Trial Description

In this preliminary trial, we will test whether applying repetitive transcranial magnetic stimulation (rTMS) to one of two brain areas will help participants with Cannabis Use Disorder reduce the amount of cannabis they use or quit using cannabis completely. To do so, we will recruit participants from the community (or addictions medicine treatment centers) who meet the criteria for Cannabis Use Disorder (heavy use of cannabis causing social, occupational, or health problems) and want to either substantially reduce the amount of cannabis they use or quit using cannabis entirely. Participants will be randomized (in a 1:1 allocation) to receive rTMS to either the left dorsolateral prefrontal cortex (DLPFC) or the ventromedial prefrontal cortex (vmPFC). All participants will also receive evidence-based counseling to help them reduce the amount of cannabis they use. We will deliver study treatment with rTMS to participants over 18-study-visits occurring either two or three times each week and then will see whether the study treatment has helped by meeting with participants four times over six weeks. We will also see how the rTMS effected brain function by having participants undergo two scans using magnetic resonance imaging (MRI). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05720312
Study type	Interventional
Source	Stanford University
Contact	Study Team
Phone	(650) 800-6920
Email	brainstimulationstudy@stanford.edu
Status	Recruiting
Phase	Phase 1/Phase 2
Start date	July 1, 2023
Completion date	July 1, 2024

View Details

See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.