View clinical trials related to Marijuana Abuse.
Filter by:This study is a randomized, controlled clinical trial to examine the therapeutic potential of cannabinoids for treating veterans with PTSD and suicidal ideation.
The goal of this study is to determine if providing a nutritional supplement, phosphatidylcholine, to pregnant women who have used cannabis products during the current pregnancy improves the offspring's brain-related development during the first 18 months. Participating pregnant women will receive either phosphatidylcholine or a placebo from approximately 16 weeks gestation through birth. The primary outcomes are the child's brain responses to sound at 4 weeks corrected age, and infant behaviors at 3 months and 18 months corrected age as reported by the primary caregiver. Secondary outcomes include motor, socio-emotional, language and cognitive development.
The purpose of this study is to assess differences in perceptions of product appeal, harm, and subsequent willingness to try cannabis edibles products with/without packaging imagery.
The purpose of this research is to determine the extent to which oculomotor function accurately detects THC-impairment, if cannabis use experience impacts this detection threshold, and to examine how the oculomotor index corresponds to a measure of sustained attention. A double-blind, placebo-controlled, within-subjects crossover design will be used to examine the dose-effects of THC (0, 5mg, 30mg) on oculomotor performance tasks and a sustained attention task in frequent and infrequent cannabis users. Results from the study will advance the investigators' understanding of the effect of THC and cannabis use frequency on oculomotor function and sustained attention, and will directly inform the validity of the investigators' oculomotor platform for identifying acute THC- induced impairment in frequent and infrequent users.
This clinical trial assesses differences in the delivery of THC to the bloodstream depending on whether nicotine vapes are used before or after THC. While there has been much recent publicity about vaping products and concern about their safety considering their increasing use for THC administration, the THC delivery profile associated with THC liquid vaping products in human subjects is currently unknown. Importantly, how the delivery to the bloodstream of THC vaping liquids compare to delivery from smoked cannabis, which is the most used method of cannabis delivery, will serve as an important benchmark for evaluating the delivery and effects of THC vaping products, and their relative safety.
This human laboratory study will use cognitive, behavioral, and subjective measures to characterize impairment associated with co-use of alcohol and vaporized cannabis. Participants (n=32) will complete 7 double-blind, double-dummy outpatient sessions in randomized order. In each session, participants will self-administer placebo (0 mg THC) or active vaporized cannabis (5 or 25 mg THC, via a handheld vaporizer called the Mighty Medic) and a placebo drink (BAC 0.0%) or alcohol drink calculated to produce a breath alcohol concentration (BAC) of 0.05%. Participants will also complete a positive control session in which the participant administers placebo cannabis and alcohol at a target BAC of 0.08% (the legal threshold for driving impairment in most U.S. states).
Cannabis use increased 10 fold among adults over the age of 65 between 2014 and 2016 but very little data exists on the extent of their harmful effects on health and behavior. The overarching goal of this project is to test a novel harm reduction strategy in which older individuals who seek to use cannabis for pain, anxiety or mood problems (depression/anxiety) will be randomly assigned to one of three conditions in an 8 week randomized controlled trial: hemp-derived CBD+THC, hemp-derived CBD-THC, or placebo. This work has the ability to directly inform individual choices regarding the use of cannabis products among older adults, and direct policy decisions regulating cannabis formulations on the legal market.
Cannabis is the most commonly used psychoactive substance in Canada (Lowry & Corsi, 2020). A sub-group of cannabis users develop a condition known as Cannabis Use Disorder (CUD), which is defined as a regular pattern of cannabis use that causes performance difficulty at work, school and relationships (Hasin et al., 2013). A review of current treatments available for CUD indicate the lack of a pharmacological and psychological treatment with high success rates, which highlights the importance of exploring potential psychosocial interventions for the treatment of CUD. Given the evidence of psilocybin's therapeutic potential in the treatment of substance use disorders (de Veen et al., 2017), we aim to conduct a study using psilocybin-assisted-psychotherapy in the treatment of CUD. The study aims to evaluate the feasibility, safety, tolerability and potential therapeutic effect of 2 doses [25 mg] of psilocybin administered as part of a 9-week Motivational Enhancement Therapy (MET) and supportive therapy. This trial will be the first to evaluate the potential treatment effects of psilocybin on symptoms of CUD.
The purpose of this research is to assess how patients with cancer being treated with Immune Checkpoint Inhibitors (ICI) manage symptoms related to cancer and/or its treatment. Patients use a variety of ways to manage symptoms including traditional and alternative treatments including cannabis, acupuncture, etc. This research will have an important impact on our knowledge of cancer symptom management, and ultimately improve patient care and safety. Participants will complete online surveys and 7 days of ecological momentary assessments at 0, 1, 2, 4, 6, 9 and 12 month to compare the cannabis users and non cannabis users symptoms.
There is a credible basis for lateral prefrontal cortex and insula deep repetitive transcranial magnetic stimulation (dTMS) stimulation as a treatment for cannabis use disorder (CUD), but no studies to date have examined this. Evidence of benefit could expand the treatment options available for CUD but require randomized controlled trials (RCTs) to evaluate its efficacy. Toward an RCT of this intervention, the proposed study is a phase 1 open-label pilot trial of dTMS for adults with CUD. This study will establish the viability of an H4 protocol constituting an active arm of a future double-blind RCT.