Clinical trials: Marijuana Smoking
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 Withdrawal
Effect of PP-01 on Cannabis Withdrawal Syndrome
This study will be a randomized, double-blind, placebo-controlled, multicenter trial conducted to evaluate whether PP-01 mitigates the withdrawal symptoms associated with discontinuing cannabis in participants with moderate to…
- Trial name
- NCT05494437
- Testing
- PP-01 High Dose, PP-01 Low Dose, Nabilone
- Where
- 18 sites in United States
- Volunteers
- 234 people
- Sponsor
- PleoPharma, Inc.
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
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
Marijuana Abuse
The Effect of Prescription Medications in Marijuana Users
A subset of heavy marijuana users have trouble quitting marijuana use and the number of those seeking treatment for problems related to marijuana is increasing.
- Trial name
- NCT00893074
- Testing
- Dronabinol 30mg/day, Dronabinol 60mg/day, Dronabinol 120mg/day
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Cannabis, Vaping
A Virtual Reality Game to Prevent E-cigarette and Cannabis Vaping
The goal of this study is to develop and test an adapted version of our virtual reality videogame intervention prototype, Invite Only VR, developed for middle school students, which focuses on e-cigarette and marijuana vaping…
- Conditions
- Cannabis, Vaping, Emotion Regulation
- Trial name
- NCT07413432
- Testing
- Virtual reality videogame intervention for vaping prevention
- Where
- United States
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Yale University
Alcohol Drinking, Marijuana Smoking
Brief Counseling to Reduce Injuries Among Emergency Department Patients Who Report Alcohol and Substance Use
The purpose of this study is to determine the effectiveness of two brief counseling sessions delivered to emergency department (ED) patients who report conjoint alcohol and marijuana use, in reducing injuries and other negative…
- Trial name
- NCT00547963
- Testing
- brief counseling
- Where
- United States
- Volunteers
- 554 people
- Sponsor
- National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Mental Health Disorder, Substance Abuse Drug
Tobacco Cessation Among Smokers Under Alcohol and/or Cannabis Treatment
Aims: To identify the predictors associated with smoking cessation in smokers under treatment for alcohol and/or cannabis treated in drug treatment centers (DTC).
- Conditions
- Mental Health Disorder, Substance Abuse Drug, Alcohol Abuse, Cannabis Use
- Trial name
- ACT-ATAC (NCT04841655)
- Where
- 2 sites in Spain
- Volunteers
- 1,625 people
- Sponsor
- Institut Català d'Oncologia
Cannabis Smoking, Oxidative Stress
Chronic Cannabis Smoking, Oxidative Stress and the Pulmonary Innate Immune Response
This study plans to evaluate the effects of chronic cannabis smoking on lung health by evaluating its effects on pulmonary health, lung physiology and alveolar macrophage function.
- Trial name
- NCT02480283
- Testing
- Bronchoscopy, Chest X-ray, Venipuncture
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Alcohol Drinking, Cannabis Use
Mobile Intervention for Simultaneous Alcohol and Marijuana Use in Young Adults
The goal of this treatment development project is to develop an adaptive ecological momentary intervention (a-EMI) for young adults using marijuana and alcohol that is grounded in self-regulation and social cognitive theories.
- Trial name
- SAFERR (NCT05991882)
- Testing
- Condition 1: Craving daily+PBS daily, Condition 2: Craving daily+PBS trigger, Condition 3: Craving trigger+PBS daily
- Where
- United States
- Volunteers
- 128 people
- Sponsor
- Kaiser Permanente
Youth With HIV
Consequences of Marijuana Use in HIV-infected Youth
Proposed study focuses on Youth With HIV (YWH) recruited from the University of North Carolina using a cross sectional assessment of blood samples, clinical, demographic, behavioral, [including substance use and frequency], and…
- Trial name
- NCT03927053
- Where
- 2 sites in United States
- Volunteers
- 21 people
- Sponsor
- Duke University
Insomnia, Alcohol Use, Unspecified
Research Evaluating Sleep & Trends for Universal Prevention
This study is designed to develop an integrated intervention to reduce alcohol and marijuana use and consequences and improve sleep among young adults with comorbid heavy episodic drinking, marijuana use, and sleep impairment.
- Conditions
- Insomnia, Alcohol Use, Unspecified, Marijuana Use
- Trial name
- REST-UP (NCT04783519)
- Testing
- Brief Behavioral Therapy for Insomnia (BBTI), Brief Alcohol Screening and Intervention for College Students (BASICS)
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University of Washington
Cannabis Use, Stress
Perceptual Influences From Smoking Cannabis: an Experimental Study
The purpose of the study is to better understand the effects of cannabis in relation to mental and physical states including its relationship with mood, cognition, perception including the experience of temperature and pain, and…
- Trial name
- PISCES (NCT06588582)
- Testing
- Water Temperature Variation - WW, Water Temperature Variation - CW
- Where
- United States
- Volunteers
- 166 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Boulder
Knowledge
Good Shepherd: Back to Reality Series
The purpose of this pilot study is to explore whether the Back to Reality series of video games - Harry's Journey, Harry's Journal, and Pathways to care map - increase knowledge of the emotional, social, and psychiatric sequelae…
- Trial name
- NCT02710019
- Testing
- Back to Reality Series Video Games, Control Video Game
- Where
- Canada
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- McMaster University
Cannabis, HIV
Modeling the Effects of Chronic Marijuana Use on Neuroinflammation and HIV-related Neuronal Injury
This study applies a hypothesis-driven approach to examine the effects of chronic marijuana use on HIV-associated inflammation and its subsequent impacts on central nervous system function, with the goal of identifying the…
- Conditions
- Cannabis, HIV, Inflammation, Cognition
- Trial name
- CHI (NCT04810858)
- Testing
- Multimodal, multi-parametric MRI, Immune and cytokine profiling, Neuropsychological testing
- Where
- United States
- Volunteers
- 220 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
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
Cigarette Smoking-Related Carcinoma
Understanding Tobacco and Cannabis Co-Use Practices: Initiation, Escalation, and Maintenance
This study evaluates histories among cannabis and tobacco co-users of their initiation, escalation, and maintenance of the co-use behavior.
- Trial name
- NCT07439471
- Testing
- Non-Interventional Study
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Roswell Park Cancer Institute
Marijuana Smoking
Effect of Quetiapine on Marijuana Withdrawal and Relapse
The objective of this study is to investigate the interaction between marijuana and quetiapine, with the goal of using this information to improve marijuana treatment outcome.
- Trial name
- NCT00743366
- Testing
- Marijuana, Quetiapine
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- New York State Psychiatric Institute
Smoking
Development of a Videogame Prototype Targeting Cigarette and Marijuana Smoking, and Tobacco Product Prevention Among Young Adolescents
To study feasibility and implementation of a education videogame and the effects on adolescents knowledge and beliefs around tobacco products.
- Trial name
- smokeSCREEN (NCT03107936)
- Testing
- smokeSCREEN game
- Where
- 4 sites in United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Yale University
Chronic Post-Traumatic Stress Disorder, Marijuana Abuse
Short-Term Exposure for PTSD
This study examines how marijuana use affects processes related to recovery from chronic posttraumatic stress disorder (PTSD). Half the participants will be individuals with chronic PTSD and heavy marijuana use and half will be…
- Trial name
- STEP (NCT02874898)
- Testing
- Brief Imaginal Exposure
- Where
- United States
- Volunteers
- 46 people
- Sponsor
- University of Washington