View clinical trials related to Marijuana Abuse.
Filter by:The purpose of this research is to study the effect of cannabis (marijuana) on gastric (stomach) emptying before surgery. The study will include people who use cannabis (study group) and people who do not use cannabis (control group).
This single center, double-blinded, randomized, placebo-controlled crossover trial will assess the efficacy and safety of extraction of cannabis flowers dissolved in olive oil (30% CBD and 1.5% Δ9-THC) vs. placebo in patients diagnosed with Autism Spectrum Disorder. The trial will contain two phases in which patients will first receive a twelve-week treatment of either cannabis or placebo followed by four weeks wash out period and another twelve weeks of crossover in the trial arms.
The overarching aim of this study is to examine the impact of acute cannabis and alcohol administration on driving performance, as well as identify methods for detecting driving under the influence of these substances. One-hundred twenty-five healthy volunteers will be randomized into one of 5 conditions; those who receive 1) low dose alcohol and placebo cannabis, 2) low dose alcohol and tetrahydrocannabinol (THC), 3) high dose alcohol and placebo cannabis, 4) placebo alcohol and THC, and 5) double placebo. Cannabis inhaled ad libitum and/or ingested alcohol will take place at the beginning of the day followed by the completion of driving simulations, components of the Drug Recognition Expert (DRE) evaluations, and bodily fluid draws (e.g., blood, oral fluid/saliva, breath) over the subsequent 4 hours after ingestion. The purpose of this study is to determine (1) the impact of Δ9-THC on driving performance with and without concurrent alcohol ingestion (2) the duration of driving impairment in terms of hours from initial use, (3) the relationship between performance on the DRE measures and cannabis/alcohol ingestion, and 4) if saliva or expired air can serve as a useful adjunct to the field for blood sampling.
This study will examine how medical cannabis use affects neuropathic pain, inflammation and adverse events in people living with HIV (PLWH) with neuropathic pain. We will study how varying ratios of THC and CBD in medical cannabis impact neuropathic pain, inflammation and adverse events.
Marijuana and cannabis-containing products are growing in popularity and availability in the United States, and use during pregnancy has increased dramatically. The overarching aim of this proposal is to provide pilot data for a submission which will explore the impact of chronic maternal marijuana use (primary or secondary) on fetal functioning, maternal reflective functioning and infant birth and neurodevelopmental outcomes. Chronically marijuana using pregnant women in treatment at the Center for Addiction and Pregnancy will be enrolled and asked to provide information about participants' marijuana and other licit and illicit substance use and feelings about parenting and participants' infant and undergo fetal monitoring at 36 weeks gestation. The neonates will undergo neurobehavioral examination during the first and fourth weeks of life.
This study evaluates the health condition and its evolution with time of Cannabis consumers in the Canadian population.
Hidradenitis Suppurativa (HS), is a chronic skin disease, manifested as inflamed areas of hair follicles around apocrine sweat glands found in areas most commonly the axillae, inguinal and anogenital regions. Patients experience great deal of physical pain as well as profound psychological problems. HS patients may also be prone to health complications and diseases. Treatment to date is limited and consist mainly of antibiotic administration and novel biological drug with up to 40% efficiency. Recently it was shown that cannabinoids reduces the folliculo pilosebaceous activity, most likely due to activating arachnoiditis, lipostat , anti-proliferative and anti-inflammatory agents and reduce inflammation inducing cytokines.
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.
The study will be performed in two parts: 1) The pharmacokinetic (PK) part and 2) The appetite and nutritional evaluation part. The PK part of study will be conducted in open label manner on 10 end stage kidney disease (ESKD) patients receiving maintenance hemodialysis (MHD) treatment. For the PK part, a starting dose of cannabis oil -1 drop of 3% cannabis oil once a day [each drop contain 1.2 mg CBD (cannabidiol) and 1.2 mg of ∆9-THC (∆9-tetrahydrocannabinol)], was judged to be safe for a first-in-MHD patient's administration. Escalation to the next higher dose and any dose adjustments of the next dose levels will be based on safety and tolerability results of the previously administered dose and available PK data of previous dose groups. Once the first dosage proved to be safe, there will be a 2 fold increase from the first dose level (2 drops once a day) to the second dose level. The dose levels will be increased by 2-fold from the previous dose level, until basal hunger and prospective consumption ratings assessed by the visual analogue scale (VAS) will increase at least by 10 mm between screening and the study visits (change-from-baseline) . PK parameters will be evaluated after first dosage administration and after dosage increased. The appetite and nutritional evaluation part of study will be conducted as a 3-month, double-blind, parallel-group, placebo-controlled, single center study. The study population will include 30 ESKD patients receiving MHD treatment with different degrees of protein-energy wasting (PEW) defined as malnutrition-inflammation score (MIS) above 6. A total of 30 subjects will be randomized to treatment with either cannabis oil or matching placebo.
The objective of this study is to assess the changes in symptoms and cognition that occur after a 28-day abstinence period in patients with comorbid Cannabis Use Disorder (CUD) and Bipolar (Type I or II) disorder. Stabilized bipolar patients (N=52) with CUD will be randomly assigned to one of two groups: 1) A contingent reinforcement (CR) group (n=26); 2) a non-contingent reinforcement (NCR) group (n=26). The study will include a total of 8 visits to the CAMH Russell site (screening, training, baselines, week 1-4, follow-up). Participants should be between the ages of 18-60, meet criteria for CUD (moderate to severe), meet criteria for Bipolar Disorder, be on a stable dose of mood stabilizing medication(s), and be non-treatment seeking cannabis user. The visits will take up a total of approximately 22.5 hours with compensation for time provided for both groups. These visits will involve multiple clinical, substance use, and cognitive assessments. Abstinence will be maintained by weekly behavioural coaching sessions and contingency reinforcement for the CR group.