Study of the Cannabis Use of Minors Imprisoned in the PACA Region
Cannabis UseTo date, there is little data on the consumption of young adults in detention. The main objective of this project is to document the prevalence of problematic cannabis use before incarceration among juveniles detained in the various detention centers in the PACA Secondary objectives are to document: the prevalence of cannabis use over the course of life, last year and last month; the prevalence of harm and risky behavior associated with the use of a psychoactive substance associated addictions and first and foremost tobacco the determinants (socio-demographic, socio-economic, environmental, etc.) of problem use and cannabis use. This is a multicenter cross-sectional study aimed at establishing an exhaustive picture of the defined population region over a 12-month period. The holder of the parental authority exercise and the individual agreeing to participate in the study must: sign an informed consent a no objection card complete a car book and hetero-questionnaires. The time of handover is evaluated at 30 minutes. The CAST questionnaire will be used to answer the main purpose of the study and to identify consumers with problematic cannabis use. CAST scores will be calculated. Abnormal CAST proportions will be presented along with their 95% confidence intervals. The links between the score and the various variables identified as determinants will be tested using uni and multivariate analyzes. The assessment of the health status and needs of this extremely vulnerable population is a prerequisite for defining specific regional objectives and for establishing a coherent and coordinated effective health intervention within the community. prisoner in France.
Tobacco Cessation Among Smokers Under Alcohol and/or Cannabis Treatment
Mental Health DisorderSubstance Abuse Drug4 moreAims: To identify the predictors associated with smoking cessation in smokers under treatment for alcohol and/or cannabis treated in drug treatment centers (DTC). Methodology: Mixed methods project with qualitative and quantitative designs (three studies). Study I discussion groups: of clinical professionals of DTC to explore the barriers/facilitators of these smokers in quitting and the interventions carried out. Study II Prospective cohort of smokers in alcohol and/or cannabis treatment that will be followed-up for 12 months. Sample size: difference in incidence (exposed to cessation interventions versus non-exposed = 12 per 100 years), α = 0.05, β = 0.10, losses = 20% (n = 726). Dependent variables: self-reported and verified tobacco consumption abstinence, quit attempts, motivation, and self-efficacy. Independent variables: age, sex, the substance under treatment. Analysis: incidence, relative risk and simple and multiple logistic regression models (odds ratio and confidence interval, CI, 95%) of quitting. Study III discussion groups: with smokers under alcohol and/or cannabis treatment selected according to their typology. Analysis: of thematic content and triangulation qualitative and quantitative results. Expected results: Characterization of variables that influence tobacco cessation, to improve the design of interventions.
The Pharmaco-genetic and Brain Mechanisms Associated With Cannabis- Induced Psychosis
Cannabis DependencePsychosisThere is growing evidence of high rates of substance use disorders among individuals with psychotic disorders especially in young people with predisposition for psychosis. There is some genetic evidence that carriers of the valine158 allele of the catechol-O-methyltransferase (COMT) gene had increased risk to exhibit psychotic symptoms and to develop schizophrenia if they used cannabis by the age of 18. It was also shown that carriers of the COMT val/val genotype were most sensitive to THC-induced psychotic experiences but this was conditional on pre-existing susceptibility to psychosis. The investigators propose to use brain-imaging and molecular genetics to investigate whether genetic factors may contribute to the THC-induced dopamine release and possibly to cannabis- induced psychosis.
Cannabis for Opioid Substitution Trial
Pain SyndromeOpioid Use1 moreThe purpose of this study is to define common strains of cannabis that adult chronic cancer and non-cancer pain syndrome patients are using as a replacement for opioids (narcotics). Identified strains, if any, will then be tested via randomized controlled trials to support an application for a Health Canada Drug Identification Number.
Neural Indices Associated With Relapse in Cannabis Dependence
Cannabis DependenceThe aim of this fMRI study is to investigate neural indices of relapse in cannabis dependence. The development and maintenance of drug addictions have been associated with deficits in cognitive control, craving and impaired stress regulation. Therefore, neural markers of brain processes underlying the beforementioned components will be studied. Subsequent follow-up drug use interviews will reveal associations between relapse in cannabis dependence and alterations in brain networks of cognitive control, craving and stress.