Clinical trials: Marijuana Use
Cannabis Use, Psychiatric Disorder
An Electronic Intervention to Reduce Cannabis Among Young Adults in Psychiatric Care
Cannabis use disorders are common among young adults in psychiatric treatment. Unfortunately, cannabis use can result in deleterious consequences for those in treatment, including developing more severe psychopathology and poorer…
- Trial name
- NCT04174963
- Testing
- eToke + TPsy
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Rhode Island Hospital
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
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
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
Cannabis Use
Cannabis Edibles Packaging Descriptors Experiment
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 product descriptors of interest.
- Trial name
- NCT06171399
- Testing
- "All Natural" descriptor, "Gluten-free" descriptor, "Vegan" descriptor
- Where
- United States
- Volunteers
- 2,521 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
THC, Cannabis
Understanding the Clinical Pharmacology of Marijuana-Tobacco Co-administration
This is a crossover, randomized, double-blinded clinical pharmacology study enrolling dual cannabis-tobacco smokers to better understand the combined effects of co-administering cannabis and tobacco.
- Conditions
- THC, Cannabis, Cannabis Use, Cannabis Smoking
- Trial name
- CANNIC (NCT05999383)
- Testing
- Cannabis, Nicotine, Pax Loose Leaf Vaporizer
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Cannabis Use
Effect of Cannabidiol (CBD) on Vision and Driving
The use of cannabis with ∆9-tetrahydrocannabinol (THC) content has been shown to have negative effects on vision and driving. The use of other cannabinoids, such as cannabidiol (CBD), which is not attributed with a psychoactive…
- Trial name
- NCT06322303
- Testing
- CBD 15%, CBD 30%
- Where
- Spain
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Universidad de Granada
Cannabis Use Disorder
Resistance Exercise and Cannabis Use
Cannabis is the most widely used illicit drug and rates of hazardous use, and cannabis use disorders (CUDs), have continued to rise in recent years.
- Trial name
- NCT03867786
- Testing
- Exercise, Video Control
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Penn State University
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
Addiction, Behavioral Addiction
Mobile Health for Problematic Behaviors and Substance Use
The aim of the study is to evaluate the effectiveness of long-term and short-term app-based self-guided psychological interventions to reduce craving and lapse risk in problematic behaviors (compulsive sex, pornography…
- Conditions
- Addiction, Behavioral Addiction, Nicotine Addiction, Nicotine Dependence
- Trial name
- NCT05434429
- Testing
- mobile application
- Where
- Poland
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- PredictWatch
Evaluation of Abuse Potential of Sativex
Abuse Potential of Sativex
This crossover study with six treatment sessions is to evaluate the abuse potential of three doses of Sativex as compared to Marinol and placebo, in subjects with a history of recreational marijuana use.
- Trial name
- NCT01323569
- Testing
- Sativex, Marinol
- Where
- Canada
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Jazz Pharmaceuticals
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
Schizophrenia, Cannabis Dependence
Imaging Cannabinoid Receptors Using Positron Emission Tomography (PET) Scanning
The aim of the present study is to assess the availability of cannabinoid receptors (CB1R) in the human brain. CB1R are present in everyone's brain, regardless of whether or not someone has used cannabis.
- Conditions
- Schizophrenia, Cannabis Dependence, Prodromal for Psychotic Illness, Family History of Alcoholism
- Trial name
- NCT01730781
- Testing
- [11-C]OMAR
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Yale University
Cannabis Use, Cannabis
Investigating Real-world Stress-related Mechanisms in Heavy Cannabis Users
This research project proposes a novel approach to elucidate the biological adaptations associated with heavy cannabis use and to assess whether such adaptations are predictive of higher cannabis craving in response to both…
- Conditions
- Cannabis Use, Cannabis, Cannabis Abuse
- Trial name
- CLR2 (NCT05833230)
- Testing
- Intensive Day Monitoring
- Where
- United States
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Yale University
Cannabis Use
Joint Effort Study
This pilot randomized controlled trial (RCT) will be conducted to evaluate the acceptability and feasibility of a digital tailored prevention tool (i.e., the Joint Effort mobile application) aimed at supporting university-level…
- Trial name
- JointEffort (NCT05099016)
- Testing
- Joint Effort, Brief normative feedback and standard information
- Where
- Canada
- Volunteers
- 99 people, healthy volunteers welcome
- Sponsor
- Centre hospitalier de l'Université de Montréal (CHUM)
Schizophrenia, Dual Diagnosis
Cannabis and Schizophrenia: Self-Medication and Agonist Treatment
The first aim of this study is to determine whether a brain reward center (BRC) deficiency in patients with schizophrenia (SCZ) and cannabis use disorder (CUD) will be normalized when patients are given cannabis or dronabinol.
- Conditions
- Schizophrenia, Dual Diagnosis, Schizoaffective Disorder, Psychotic Disorder
- Trial name
- NCT00946348
- Testing
- Dronabinol, Cannabis
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Dartmouth-Hitchcock Medical Center
Cannabis Use
SV2A in Older Adults
The aim of the study is to examine the effect of cannabis use on brain synaptic density among older adults using [11C]UCB-J PET imaging.
- Trial name
- NCT05465538
- Testing
- [11C]UCB-J PET
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Yale University
Cannabis Use, Marijuana Use
Cannabis Use in Pregnancy and Downstream Effects on Maternal and Infant Health
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…
- Trial name
- CUPiD (NCT05309226)
- Testing
- Cannabis use in pregnancy or cannabis exposure in utero
- Where
- 4 sites in Canada
- Volunteers
- 43 people, healthy volunteers welcome
- Sponsor
- Ottawa Hospital Research Institute
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
Cannabis Use Disorder, Moderate
Cortical Excitability and Role of rTMS in Cannabis Use Disorder
Repetitive transcranial magnetic stimulation (rTMS) and cortical excitability have a role in cannabis use disorder
- Trial name
- NCT04106336
- Testing
- rTMS
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Assiut University