View clinical trials related to Marijuana Abuse.
Filter by:This study employs a repeated measures experimental design to examine the effect of THC-dominant dose of cannabis and CBD-dominant dose of cannabis, relative to placebo, on subsequent drinking in an alcohol choice task in which participants choose either to drink or receive monetary reinforcement for drinks not consumed. Cannabis will be administered simultaneously with an alcohol-priming dose or alcohol placebo. The study will enroll up to 350 nontreatment-seeking heavy episodic alcohol drinkers who use cannabis weekly.
This Phase II STTR program consists of two major goals within the overarching goal of developing and validating a proprietary device (BID2) for marijuana and opioid detection in breath samples.
College students' risky drinking and cannabis use are major public health problems. The harms associated with risky drinking have been well-documented (such as deaths, blackouts, injuries, assaults, arrests, sexual consequences, academic consequences). Both college health administrators and parents have requested electronic parent-based interventions (e-PBIs) with additional content on cannabis. Parents have demonstrated ample motivation to communicate with their teens. The proposed research will attempt to enhance an existing effective e-PBI, curb the alarming trends noted in the literature, and move the field forward by conducting a randomized controlled trial testing a modified version of the e-PBI that includes updated content including the most up-to-date scientific information from cannabis studies (e-PBI+).
The overarching goal of this online study is to compare the efficacy of six (weekly) sessions of Domain-Specific Episodic Future Thinking (DS-EFT) relative an active control condition on improving the ability to value future rewards and reducing cannabis use (grams and days of use), tobacco use, and alcohol use among.
With perinatal cannabis use rising in Canada, robust data on short-term and long-term effects on newborns are urgently needed. However, past barriers to obtain robust data included limited sample sizes, low self-reporting and no account of postpartum exposures. Therefore, this study will be conducted as a feasibility pilot study to tease out limitations that were present in previous studies. This study will help us dictate how to conduct a larger prospective cohort study to answer any knowledge gaps currently in the field of perinatal cannabis use.
After initial eligibility screening, Veterans who use both cannabis and tobacco will be randomly assigned to receive either varenicline (Chantix) or placebo for 12 weeks. Participants will attend weekly visits, in person or remotely, to provide breath and urine samples for testing, fill out questionnaires, and meet with study staff about medication compliance.
This study is to explore if repetitive transcrinal magnetic stimulation (rTMS) with different stimulation schedules will be equally effective in reducing carving, frequency of cannabis use, and the severity of cannabis use disorder in participants suffering from cannabis use disorder (CUD). The investigators assume the hypotheses as: 1. Multiple rTMS sessions can reduce craving for cannabis, severity of CUD, frequency and amount of cannabis use. 2. Different rTMS treatment schedules have differences in reducing the craving for cannabis and severity of CUD, and prolonging relapse of cannabis use.
Subjects will participate in a 2-visit study protocol in which they will be administered cannabis of pre-determined concentrations and asked to complete a simulated drive in a driving simulator. Subjects will be scanned on two SpotLight-THC (Alpha and Beta iterations) devices and peripheral venous whole blood will be collected from subjects for analysis on up to four occasions on each visit. The purpose of the investigation will be to determine whether the SpotLight-THC device is a reliable measure of THC impairment at the roadside, with an objective to identify a unique blood analyte architecture for THC impairment using near infrared light and machine learning.
The purpose of this Phase I non-therapeutic trial is to examine the neurological effects of cannabis on stress reactivity and inhibition in healthy cannabis users. We expect differences between high ratio CBD:THC cannabis oil, low ratio CBD:THC cannabis oil, and/or placebo on outcome measures.
The purpose of this study is to assess the efficacy of droperidol as a treatment of cannabinoid hyperemesis syndrome.