Clinical trials: Marijuana
Cannabis Use, Sleep
Cannabis Effects on Sleep, Circadian Rhythms, and Light Sensitivity in Young Adults
The goal of this study is to learn how cannabis use and discontinuation affect sleep, circadian rhythms, and sensitivity to light. The main questions it aims to answer are: 1.
- Conditions
- Cannabis Use, Sleep, Circadian Rhythm
- Trial name
- CASCILS (NCT06743373)
- Testing
- Cannabis Discontinuation
- Where
- United States
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- University of Pittsburgh
Cannabis Use, Cannabis Smoking
Longitudinal Study of Xenon-129 MRI Imaging Effects of Cannabis Smoking
This is a longitudinal study of the long-term health impact of cannabis smoking on the lungs. Participants will be followed over a period of 3 years, and impacts of cannabis smoking on the lungs will be measured with magnetic…
- Conditions
- Cannabis Use, Cannabis Smoking, Marijuana Smoking, Marijuana Usage
- Trial name
- NCT03909477
- Testing
- Hyperpolarized Xenon-129 MRI of the lungs, Computed Tomography (CT), Pulmonary Function Tests (PFTs)
- Where
- Canada
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Western University, Canada
Cannabis, Memory
Cannabis Observations on Brain Waves, Retrieval, and Attention: Experiment 4
This study investigates the impact of ∆9-tetrahydrocannabinol (THC) and cannabidiol (CBD) on recognition memory in healthy, regular cannabis users.
- Conditions
- Cannabis, Memory, Electroencephalography
- Trial name
- COBRA 4 (NCT07679581)
- Testing
- Cannabis (smoked flower)
- Where
- United States
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- L. Cinnamon Bidwell
Driving Impaired, Cognitive Impairment
Dose-response of Cannabis and Driving
Epidemiological studies have established a link between collisions while driving and cannabis use. With the changing legal landscape around cannabis, there is much interest in determining per se limits of cannabis while driving.
- Conditions
- Driving Impaired, Cognitive Impairment, Abuse Cannabis
- Trial name
- NCT03656029
- Testing
- Cannabis
- Where
- Canada
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Centre for Addiction and Mental Health
Cannabis, Dependence
Effects of Sativex(Registered Trademark) and Oral THC on Attention, Affect, Working Memory, Reversal Learning, Physiology and Brain Activation
Background: The therapeutic modalities of cannabis have received more research attention recently with the discovery of its ability to stimulate appetite and to provide pain and nausea relief in patients with AIDS, cancer, and…
- Conditions
- Cannabis, Dependence, Cannabis Abuse, Pharmacokinetics
- Trial name
- NCT01037608
- Testing
- Sativex(Registered Trademark), THC
- Where
- United States
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- National Institute on Drug Abuse (NIDA)
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
Healthy
The Effects of ∆-9-THC and Naloxone in Humans
The purpose of this project is to examine the effects of mu-opiate antagonism on the rewarding and reinforcing effects of delta-9-tetrahydrocannabinol (THC), the main psychoactive ingredient of cannabis.
- Trial name
- NCT01591629
- Testing
- Naloxone, Delta-9-THC
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Yale University
Evaluate PK Profile, Evaluate PD Profile
A Study Testing the Effects of Different THC Doses on Psychological and Biological Function
The goal of this clinical trial is to learn how a investigational medicinal product (THC) affects psychological and physical responses in healthy adults with prior cannabis use experience.
- Conditions
- Evaluate PK Profile, Evaluate PD Profile, Healthy Adults, Safety and Tolerability in Healthy Volunteers
- Trial name
- DRATT (NCT07346690)
- Testing
- AVCN319301b (6mg), AVCN319301b (9mg), AVCN319301b (15mg)
- Where
- Canada
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Calgary
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
Cannabis
Age Differences in the Effects of Cannabis on Simulated Driving
Epidemiological studies suggest that the use of cannabis is associated with an increase in the risk of motor vehicle collisions. It is also known that younger users may be at increased risk for motor vehicle collisions.
- Trial name
- ADCUF (NCT04325958)
- Testing
- Cannabis
- Where
- Canada
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- Centre for Addiction and Mental Health
Marijuana Use
Project Chill: Tailored Youth Drug Intervention In Primary Care
This study examines the impact of tailored computer-delivered and therapist-delivered brief motivations prevention/interventions both for adolescents who have not initiated marijuana use (prevention), and those who use marijuana…
- Trial name
- NCT01329315
- Testing
- BMI-T, BMI-C
- Volunteers
- 1,141 people, healthy volunteers welcome
- Sponsor
- University of Michigan
Driving Impaired, Alcohol Intoxication
Effects of Cannabis/Alcohol on Driving Performance and Field Sobriety Tests
The overarching aim of this study is to examine the impact of acute cannabis and alcohol administration on driving performance, as well as identify methods for detecting driving under the influence of these substances.
- Conditions
- Driving Impaired, Alcohol Intoxication, Driving Under the Influence, Cannabis Intoxication
- Trial name
- NCT05273658
- Testing
- Cannabis, Alcohol
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of California, San Diego
Cannabis Use, Neurocognitive Dysfunction
Prospective Evaluation on Cognitive Function and Its Associated Genetic Vulnerability in Cannabis Users
Most of the studies assessing Cannabis Use Disorder (CUD) and neurocognitive functions are cross-sectional without examining the longitudinal changes in neurocognitive function at a within-subject level with respect to the…
- Conditions
- Cannabis Use, Neurocognitive Dysfunction, Genetic Predisposition
- Trial name
- SToP-C_PeCoG (NCT04373525)
- Testing
- Genome analysis
- Where
- Hong Kong
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- The University of Hong Kong
Pain, Abuse, Drug
Effects of Cannabis on Prescription Drug Abuse Liability and Analgesia
The purpose of this research is to assess the impact of cannabis on the analgesic and abuse-liability effects of a sub-threshold dose of a commonly used analgesic.
- Trial name
- NCT03679949
- Testing
- Oxycodone, Cannabis (THC:CBD = ~ 1:0), Cannabis (THC:CBD = ~ 0:1)
- Where
- United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- New York State Psychiatric Institute
Cannabis Use
Cannabis Use and Epigenetic Alterations in Human Male Sperm Cells
This is a follow-up project to a proof-of-concept study to determine if Cannabis use in male humans is associated with changes in deoxyribonucleic acid (DNA) methylation profile of sperm.
- Trial name
- NCT03614637
- Testing
- Cannabis use abstinence for 11 weeks
- Where
- United States
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Duke University
Evaluation of Pharmacokinetics of Sativex in the Absence and Presence of a Known Inducer of CYP3A4, Evaluation of Pharmacokinetics of Sativex in the Absence and Presence of a Potent Inhibitor of CYP3A4
Study to Evaluate the Effect of Rifampicin, Ketoconazole, and Omeprazole on the Pharmacokinetics of Sativex
Study to assess the effect of rifampicin, ketoconazole and omeprazole on the pharmacokinetics of a single dose of Sativex and to evaluate the safety of Sativex when given in combination with these other drugs.
- Conditions
- Evaluation of Pharmacokinetics of Sativex in the Absence and Presence of a Known Inducer of CYP3A4, Evaluation of Pharmacokinetics of Sativex in the Absence and Presence of a Potent Inhibitor of CYP3A4, Evaluation of Pharmacokinetics of Sativex in the Absence and Presence of a CYP2C19 Inhibitor
- Trial name
- NCT01323465
- Testing
- Sativex and rifampicin, Sativex and ketoconazole, Sativex and omeprazole
- Where
- United Kingdom
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Jazz Pharmaceuticals
Memory
Galantamine Effects on Cognitive Function in Marijuana Users
To evaluate galantamine's effects on cognitive performance in marijuana users. Galantamine, an acetylcholine esterase inhibitor, is approved for treatment of Alzheimer's disease.
- Trial name
- NCT00969696
- Testing
- Galantamine
- Where
- United States
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Yale University
Marijuana Impairment, Alcohol Impairment
Examine the Feasibility of a Standardized Field Test for Marijuana and Alcohol Impairment: Laboratory Evaluations
Alcohol and Cannabis (CNB) are two of the most widely used intoxicants. The effects of driving while intoxicated on alcohol are well documented, resulting in numerous drunken driving laws and regulations.
- Trial name
- Alc-NHTSA (NCT04856566)
- Testing
- Low Marijuana, Hash, THC, or Grass, High Marijuana, Hash, THC, or Grass, 0.05 BAC Alcohol
- Where
- United States
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Yale University
Cannabis Use Disorder
Effects of THC on Alcohol Consumption and Neural Correlates of Reward
Alcohol and cannabis are often used together such that their effects overlap, but little is known about the neural mechanisms that underlie simultaneous use.
- Trial name
- NCT06446479
- Testing
- Dronabinol Pill
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Marijuana Dependence
The Effects of Marijuana on Orientation and Motor Coordination and Brain Metabolism in Regular Smokers of Marijuana
This study investigates the effects of 17mg and 13mg Delta THC on orientation and motor coordination and brain metabolic activity in regular users of marijuana.
- Trial name
- NCT00270803
- Testing
- Tetra Hydro Cannabinol (THC)
- Where
- Israel
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Tel-Aviv Sourasky Medical Center