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Cannabis Use clinical trials

View clinical trials related to Cannabis Use.

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NCT ID: NCT05386862 Withdrawn - Clinical trials for Post Traumatic Stress Disorder

Warrior CARE: Naturalistic Observation and Harm Reduction

NOC
Start date: July 13, 2022
Phase: N/A
Study type: Interventional

This study is looking at therapeutic potential of reducing Tetrahydrocannabinol (THC) levels in regular cannabis smokers using contingency management (CM) intervention in a U.S. veteran population with post-traumatic stress disorder (PTSD).

NCT ID: NCT03987347 Withdrawn - Cannabis Use Clinical Trials

Health Condition of Cannabis Consumers in the Canadian Population

Start date: December 1, 2020
Phase:
Study type: Observational

This study evaluates the health condition and its evolution with time of Cannabis consumers in the Canadian population.

NCT ID: NCT03883360 Withdrawn - Cannabis Use Clinical Trials

Effects of Cannabidiol on Psychiatric Symptoms, Cognition, and Cannabis Consumption in Cannabis Users With Recent-Onset Psychosis

Start date: January 2050
Phase: Phase 2
Study type: Interventional

A large proportion of people with a schizophrenia-spectrum disorder, especially in the early stages of the disease, regularly consume cannabis. Cannabis use is associated with poor prognostic outcome; however, there are no effective interventions targeted at reducing cannabis use or its deleterious effects in this population. The present trial is designed to test whether cannabidiol (CBD), a cannabinoid whose effects are in many ways antagonistic to those of Δ9-tetrahydrocannabinol (THC), can reduce psychiatric symptoms, cognitive deficits, and cannabis use in people with recent-onset psychosis who regularly consume cannabis.

NCT ID: NCT01031290 Withdrawn - Cannabis Use Clinical Trials

Pilot Study Repetitive Transcranial Magnetic Stimulation (rTMS) in Cannabis Craving

Start date: August 19, 2009
Phase: Phase 1
Study type: Interventional

Background: - Cannabis, also known as marijuana, is a commonly abused drug. There is no approved medication to treat cannabis addiction. The desire to use cannabis often increases when seeing others use it or seeing pictures of it. Researchers are interested in determining which parts of the brain are active when looking at pictures associated with cannabis. - Repetitive transcranial magnetic stimulation (rTMS) uses magnetic pulses to stimulate the brain. These pulses can change activity in parts of the brain. Researchers are interested in determining whether rTMS can decrease activity in the parts of the brain that respond to cannabis, and thereby lessen cravings for cannabis. Objectives: - To determine whether transcranial magnetic stimulation can lower craving for cannabis when people who use cannabis are shown images that increase craving. Eligibility: - Individuals 18 years of age and older who are physically healthy and currently use cannabis (at least 3 times weekly for the past 2 years). Design: - The study will involve eight visits over 3 weeks, with each visit lasting 1 to 2 hours. - Participants will have an initial assessment about cannabis use and provide blood and urine samples before beginning the study. - Participants will have three magnetic resonance imaging (MRI) brain scans. The first MRI scan will look at the structure of the brain at rest. During the other two scans, participants will look at images related to and not related to cannabis use. - The rTMS sessions (with either actual TMS or inactive [sham] TMS) will be held daily for 5 consecutive days. During these testing visits, researchers will ask questions related to drug use and craving, and collect urine and breath samples for further study. - Participants will have two follow-up visits, 1 week and 2 weeks after the rTMS sessions, to evaluate memory and mood, and one final MRI brain scan at the end of the study.