Clinical trials: Cannabis Use
Marijuana Use
Effects of a Range of Naltrexone Doses in Combination With Smoked Marijuana
The purpose of this study is to determine if the subjective effects of marijuana will be decreased by low-doses (< 25 mg) of naltrexone and increased by high-doses (> 50 mg) of naltrexone.
- Trial name
- NCT00403117
- Testing
- Naltrexone 12 Mg+ Active Marijuana (3.27% THC), Naltrexone 25 Mg + Active Marijuana (3.27% THC), Naltrexone 50 Mg+ Active Marijuana (3.27% THC)
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- New York State Psychiatric Institute
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
Sleep
Cannabis Association With Sleep Study
The purpose of this study is to learn more about cannabis use, sleep, and stress, and whether there is any relationship between the three.
- Trial name
- CaSS (NCT06982950)
- Testing
- Manipulation of Sleep Duration
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Substance Use, Binge Drinking
Substance Use Screening to Encourage Behavior Change Among Young People in Primary Care
This study evaluates whether completing a short screening questionnaire about health behaviours in the waiting room before a primary care consultation decreases excessive substance use in young people aged 14 to 24 years.
- Conditions
- Substance Use, Binge Drinking, Cannabis Use, Adolescent Behavior
- Trial name
- YP-HEALTH (NCT04146714)
- Testing
- Substance use questionnaire, Physical activity questionnaire
- Where
- Switzerland
- Volunteers
- 840 people, healthy volunteers welcome
- Sponsor
- Prof. Dagmar M. Haller
Nicotine Withdrawal, Marijuana Dependence
Medications Development for the Treatment of Cannabis Related Disorders
The primary objective of this application is to test the neurobehavioral mechanisms and effects of aprepitant as a new cessation agent for cannabis, tobacco or both.
- Conditions
- Nicotine Withdrawal, Marijuana Dependence, Cannabis Dependence, Nicotine Dependence
- Trial name
- MTC (NCT01204723)
- Testing
- Active Aprepitant
- Where
- 2 sites in United States
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- University of Virginia
Cannabis Use
Cannabis Use on Sedation for Oral Surgery Procedures
The use of Cannabis is increasing in the population, and the effects that this might have on different medical procedures are poorly understood.
- Trial name
- NCT05873465
- Testing
- Sedation with Midazolam, Fentanyl, and Propofol, Extraction of teeth
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Oklahoma
Cannabis Use
A Hybrid Effectiveness-Implementation Trial of a School-Based Teen Marijuana Checkup
A hybrid effectiveness-implementation trial that is designed to assess the effectiveness of an intervention (The Teen Marijuana Check-Up) when delivered in real world settings.
- Trial name
- TMCU5 (NCT03111667)
- Testing
- Teen Marijuana Check Up, Treatment as Usual, Gold Standard Coaching
- Where
- United States
- Volunteers
- 264 people, healthy volunteers welcome
- Sponsor
- University of Washington
Alcohol Use, Marijuana Use
Emerging Adults Who Use Alcohol and Marijuana
The purpose of this study is to if a brief motivational intervention, compared to health education sessions, reduces alcohol and marijuana use and is related to fewer sexually transmitted infections (STI)in emerging adults who…
- Conditions
- Alcohol Use, Marijuana Use, Sexually Transmitted Infections
- Trial name
- HEAT (NCT01473719)
- Testing
- motivational intervention, health education
- Where
- United States
- Volunteers
- 566 people, healthy volunteers welcome
- Sponsor
- Butler Hospital
Cannabis Use
Effects of Cannabis Species Labeling and Marketing on Perceptual, Subjective and Objective Use Outcomes (Aim 2 Study)
This study looks at how cannabis product label and marketing claims affect product perceptions, use expectancies, and use intentions among inexperienced and experienced cannabis users.
- Trial name
- NCT07513337
- Testing
- Strain label, Claim
- Where
- United States
- Volunteers
- 3,035 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins Bloomberg School of Public Health
Marijuana Smoking
Effects of Low-dose Naltrexone in Combination With a Range of Smoked Marijuana
In heavy marijuana smokers, opioid receptor blockade increases the subjective and cardiovascular effects of marijuana. The current study was designed to clarify opioid-cannabinoid interactions by assessing how naltrexone shifts…
- Trial name
- NCT00743145
- Testing
- Inactive Marijuana (0% THC), Active Marijuana (5.5% THC), Active Marijuana (6.2% THC)
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- New York State Psychiatric Institute
Marijuana Usage, Alcohol Drinking
Neuroscience of Alcohol and Marijuana Impaired Driving
Alcohol is one of the most widely used intoxicants. The effects of driving while intoxicated are well documented, leading to the laws and regulations behind drunk driving.
- Trial name
- NCT03431987
- Testing
- One day with a dose of active THC cannabis paired with alcohol
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Hartford Hospital
Study Focuses on Brain Morphology and Cognition in Older Subjects
Cannabis Effects on Brain Morphology in Aging
Marijuana (Cannabis sativa) is the most widely used illicit drug worldwide, with 17.4 million Americans reporting past month use in 2010 and 4.6 million meeting criteria for dependence, underscoring the public health importance…
- Trial name
- CAN (NCT01874886)
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Schizophrenia, Cannabis Use Disorder
Genetic Basis of the Risk and Consequences of Cannabis Exposure in Humans
Cannabis is widely used worldwide and is associated with negative outcomes including cannabis use disorder (CanUD), psychosis, and cognitive impairment amongst others.
- Trial name
- NCT06058702
- Testing
- Delta-9-THC Very Low Dose, Delta-9-THC Medium Dose
- Where
- United States
- Volunteers
- 215 people, healthy volunteers welcome
- Sponsor
- Yale University
Pain, Insomnia
Effect of Medical Marijuana on Neurocognition and Escalation of Use
This study will use a randomized controlled design to test whether patients who use medical marijuana, compared to a waitlist control group, experience a change in health outcomes (relief of symptoms, or adverse health outcomes…
- Conditions
- Pain, Insomnia, Depression, Anxiety
- Trial name
- MMNE (NCT03224468)
- Testing
- Medical Marijuana
- Where
- United States
- Volunteers
- 269 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Cannabis Use Disorder
Determining the Effect of Six Weeks of Cannabis Abstinence on Fronto- Striatal fMRI Markers in Adolescents With Cannabis Use Disorder (ABSCAN)
The goal of this study is to understand the changes in neural correlates of reward in adolescents with and without Cannabis Use Disorder (CUD).
- Trial name
- NCT06124846
- Testing
- CB-Abst, CB-Mon
- Where
- United States
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Cannabis Use Disorder, Cannabis Dependence, Continuous
Brain Imaging of Cannabinoid Receptors
All participants will be healthy volunteers and all procedures will be completed for research purposes only. Two groups will be recruited, females who use cannabis (marijuana, MJ), and female who do not use cannabis (controls).
- Trial name
- NCT03204305
- Testing
- 11C-OMAR, Cannabis
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Cannabis Use
Smart Talk: Cannabis Awareness and Prevention Curriculum Evaluation
The Stanford REACH Lab's SMART TALK: Cannabis Awareness and Prevention Toolkit is a free, online educational resource to be used by educators to increase knowledge and awareness of cannabis and reduce use among youth.
- Trial name
- NCT07357454
- Testing
- Behavioral: Smart Talk Cannabis Awareness and Prevention
- Where
- United States
- Volunteers
- 10,800 people, healthy volunteers welcome
- Sponsor
- Stanford University
Marijuana Use
Computer-Mediated Versus Face-to-Face Motivational-Type Interviews
This study looks at whether in-person and computer-based motivational type interviews lead to the same kind of language and behavior change in young adults when they talk about their marijuana use.
- Trial name
- NCT06945471
- Testing
- 1) Face-to-face, and 2) Computer-mediated motivational type interviews
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University of Texas, El Paso
Marijuana
Helping Eliminate Marijuana Use Through Pediatric Practice
This study adapts the Public Health Service (PHS) 5As model for use with adolescent marijuana users and pilot the intervention to test feasibility and acceptability in pediatric primary care settings.
- Trial name
- HEMPP (NCT02744118)
- Testing
- 5A's Model, Healthy Internet Use Model
- Where
- United States
- Volunteers
- 620 people, healthy volunteers welcome
- Sponsor
- American Academy of Pediatrics
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