Clinical trials: Marijuana Use
Cannabis Use, Impaired Driving
Examining the Role of Tolerance on Dose-dependent Effects of Acute THC on Oculomotor and Cognitive Performance
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…
- Conditions
- Cannabis Use, Impaired Driving, Cognitive Impairment
- Trial name
- NCT06351540
- Testing
- Cannabis
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Cannabis Use
Perceptions of Proposed Warnings for Cannabis Edibles Packaging
The purpose of this study is to compare a delayed-effects warning to an expanded warning developed in previous experiments on knowledge, harm perceptions, and willingness to try cannabis edibles.
- Trial name
- NCT07496489
- Testing
- No Warning Control, Delayed Effects Text Only, Delayed Effects Plus Icon
- Where
- United States
- Volunteers
- 1,250 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Substance Use, Substance-Related Disorders
Clinician Practice Companion to Address Youth Substance Use
Substance use, including the use of opioids, cannabis, and other drugs, is common among adolescents and young adults, and overdose has become a leading cause of death among youth in Canada and the United States.
- Conditions
- Substance Use, Substance-Related Disorders, Adolescent Substance Use, Cannabis Use
- Trial name
- NCT07725289
- Testing
- Practice Companion
- Where
- 5 sites in United States, Canada
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Cannabis Use, Tobacco
Lung Health and Breath Biomarkers: Acute Effects of Inhaled Cannabis
This outpatient study examines how inhaled cannabis, combustible or vaporized, alters lung health and breath biomarkers compared to a tobacco cigarette.
- Conditions
- Cannabis Use, Tobacco, Biomarkers
- Trial name
- NCT07694466
- Testing
- Cannabis (THC), Tobacco Cigarette
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Hannah Harris
Cannabis, Marijuana Use
Developing and Strengthening Cannabis Warnings: Warning Message Testing
The purpose of this activity is to identify promising cannabis warning messages from different themes. Participants will be adults who live in the United States, including both people who use cannabis and those who do not use…
- Trial name
- NCT07699198
- Testing
- Constituents, Cognitive Functioning, Cardiovascular Health
- Where
- United States
- Volunteers
- 1,750 people, healthy volunteers welcome
- Sponsor
- University of North Carolina, Chapel Hill
Alcohol Drinking, Cannabis Use
Cannabis' Impact on Alcohol Consumption
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…
- Conditions
- Alcohol Drinking, Cannabis Use, Cannabis, Alcohol Use Disorder
- Trial name
- NCT05389930
- Testing
- THC-dominant cannabis, CBD-dominant cannabis, Alcohol
- Where
- United States
- Volunteers
- 350 people, healthy volunteers welcome
- Sponsor
- Brown University
Cannabis Use
Acute Effects of Cannabis on Cognition and Affect
This study will examine how a moderate dose of THC affects mood and cognitive functioning in regular cannabis users. The study uses a double-blind, placebo-controlled, crossover design, meaning each participant will complete two…
- Trial name
- NCT07296874
- Testing
- THC 20mg
- Where
- United States
- Volunteers
- 92 people, healthy volunteers welcome
- Sponsor
- Washington State University
Asperger's Disorder, Asperger Disorder
QAIAx (AIhealth4U) - AI Smart Health Cities: Microcity Enclave Program (Quantum AI/AGI Agency a/k/a AI City Hall Project - UPSTO App Nos. 64/074,526, 64/063,557, 64/105,164, 63/903,181, 63/729,428, 64/125,360)
BRIEF SUMMARY A. "What is the purpose of this study?" BACKGROUND. The QAIAx clinical trial (Quantum AI/AGI Public Health Agency), known operationally as the "AI City Hall Project," represents a landmark intergovernmental research…
- Conditions
- Asperger's Disorder, Asperger Disorder, Autism Disorder, Autism
- Trial name
- QAIAx (NCT07661823)
- Testing
- AI City Hall Project (AIhealth4u - Public Health Central), AI City Hall Project (QAIAx Microcity A - AI Public Health Central)
- Where
- United States
- Volunteers
- 1,000,000 people, healthy volunteers welcome
- Sponsor
- Veterans Recovery Network Inc.
Psychotic Disorders, Cannabis Use Disorder
Investigating the Neural Correlates of Cognitive Function in Psychosis Patients and Non-Psychiatric Controls With Cannabis Use
Cognitive impairment is well established in people with psychosis and is associated with cannabis use. The current study will investigate the neurobiological basis of cognitive change associated with 28-days of cannabis…
- Conditions
- Psychotic Disorders, Cannabis Use Disorder, Cannabis Dependence, Cannabis Use
- Trial name
- NCT05445180
- Testing
- Contingency management
- Where
- Canada
- Volunteers
- 134 people, healthy volunteers welcome
- Sponsor
- Douglas Mental Health University Institute
Methamphetamine Induced Psychosis, Cannabis Use
Psychiatric Symptom Characteristics in Methamphetamine-Induced Psychosis With and Without Lifetime Cannabis Use
This prospective cohort study aims to investigate factors associated with psychiatric symptom severity in participants diagnosed with methamphetamine-induced psychotic disorder (MP) with and without lifetime cannabis use (LCU).
- Trial name
- NCT07459270
- Where
- 2 sites in Turkey (Türkiye)
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Elazığ Mental Health and Diseases Hospital
Cannabis Use
Feasibility and Acceptability of the Cannabis Awareness and Prevention Toolkit
The Stanford Smart Talk Cannabis Awareness and Prevention Curriculum includes 5 lessons, each providing activities, online quiz games, and worksheets in addition to presentations, resources, and other materials aimed at…
- Trial name
- NCT05521321
- Testing
- Stanford Smart Talk Cannabis Awareness and Prevention curriculum
- Where
- United States
- Volunteers
- 658 people, healthy volunteers welcome
- Sponsor
- Stanford University
Cannabis
Transcranial Magnetic Brain Stimulation to Reduce Cannabis Use in Heavy Cannabis Users
The growing legalization of cannabis across the U.S. is associated with increases in cannabis use, and accordingly, an increase in the number of individuals with cannabis use problems, including cannabis use disorder (CUD).
- Trial name
- iCURE (NCT05401929)
- Testing
- iTBS
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Duke University
Opioid Use, Alcohol Drinking
TACUNA (Traditions and Connections for Urban Native Americans)
This study responds to Request For Application-DA-19-035, HEAL (Helping End Addiction Long Term) initiative: Preventing OUD in Older Adolescents and Young Adults (ages 16-30) by developing and implementing a culturally centered…
- Conditions
- Opioid Use, Alcohol Drinking, Marijuana Use
- Trial name
- TACUNA (NCT04617938)
- Testing
- TACUNA plus Wellness Circle, Opioid Education Workshop
- Where
- 3 sites in United States
- Volunteers
- 541 people, healthy volunteers welcome
- Sponsor
- RAND
Tobacco Use Disorder, Nicotine Dependence
Young Adult Tobacco/Nicotine and Cannabis Co-use
The goal of this project is to better understand the relationship between tobacco/nicotine and cannabis using behavioral economics during a tobacco/nicotine quit attempt.
- Trial name
- YouthCAT (NCT06239350)
- Testing
- Counseling, Contingency management, Text-based support
- Where
- United States
- Volunteers
- 350 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Substance-related Disorders, Alcohol-Related Disorders
LaunchPad: Supporting Healthy Decisions and Preventing Drug Use After High School
LaunchPad is an online substance use prevention program for high school seniors. The program is designed to help seniors develop skills and make informed decisions as they transition from high school to young adulthood.
- Conditions
- Substance-related Disorders, Alcohol-Related Disorders, Tobacco Use Disorder, Marijuana Use
- Trial name
- NCT07655609
- Testing
- Introduction, Norms re: Protective Behavior Strategies (PBS), Life Skills
- Volunteers
- 5,000 people, healthy volunteers welcome
- Sponsor
- Prevention Strategies, LLC
Nicotine Dependence, Tobacco Use Disorder
E-cigarette Cessation in Adults Who Co-use Cannabis
The purpose of this study is to better understand tobacco outcomes using a commonly prescribed stop smoking medication (varenicline) and financial incentives for adults who also use cannabis.
- Trial name
- VapeCAT (NCT06688539)
- Testing
- Varenicline Pill, Contingency management, Counseling
- Where
- 3 sites in United States
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Vaping, Adolescent
Nicotine and Cannabis Vape Labeling Experiment - Spring 2025
This study assesses how the ways in which nicotine and cannabis vaping devices are labeled impact use susceptibility, anticipated effects, and health harm.
- Conditions
- Vaping, Adolescent, Electronic Cigarette Use, Nicotine
- Trial name
- EPIC/ADVANCE (NCT06919276)
- Testing
- Vaping Device Labeling
- Where
- United States
- Volunteers
- 3,048 people, healthy volunteers welcome
- Sponsor
- University of Southern California
Cannabis Use, Alcohol Use
Alcohol and Cannabis Co-Use and the Gut-Brain Axis
This observational study aims to improve our understanding of how legal market cannabis use impacts acute and long-term alcohol use, the microbiota-gut-brain-axis (MGBA), and neurobehavioral alcohol use phenotypes such as…
- Conditions
- Cannabis Use, Alcohol Use, Inflammation
- Trial name
- FRACTAL (NCT04998006)
- Where
- United States
- Volunteers
- 77 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Marijuana Smoking, Cannabis
Study on Regulated Cannabis Sales in Pharmacies
Though regulated cannabis sales are increasing, little is known about the individual health effects of cannabis regulation. Data from countries with a regulated market can be used to test the effect of regulation on the price of…
- Conditions
- Marijuana Smoking, Cannabis, Cannabis Use
- Trial name
- SCRIPT (NCT06120855)
- Testing
- Regulated cannabis from authorized pharmacies, Cannabis from the illicit market
- Where
- 2 sites in Switzerland
- Volunteers
- 1,177 people, healthy volunteers welcome
- Sponsor
- University of Bern
Pregnancy Related, Cannabis Use
Effects of Pregnancy-associated Hormones on THC Metabolism in Women
Cannabis use is prevalent among pregnant women, but the effects of use on both the developing fetus and pregnant woman are unknown.
- Trial name
- PrECEPT (NCT04374773)
- Testing
- Dronabinol
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Washington