- Conditions
- Alcohol Drinking, Cigarette Smoking, Marijuana Smoking
- Interventions
- Project CHOICE
- Behavioral
- Lead sponsor
- RAND
- Other
- Eligibility
- 11 Years to 15 Years
- Enrollment
- 6,455 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2014
- U.S. locations
- 1
- States / cities
- Los Angeles, California
Search Results
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Showing 25–48
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matching trials from the live ClinicalTrials.gov search.
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- Conditions
- Vaping, Adolescent, Electronic Cigarette Use, Nicotine, Cannabis
- Interventions
- Vaping Device Labeling
- Other
- Lead sponsor
- University of Southern California
- Other
- Eligibility
- 11 Years to 19 Years
- Enrollment
- 3,048 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Sexual Behavior, Alcohol Drinking, Marijuana Smoking
- Interventions
- Adolescent Safer Sex Social Network Intervention
- Behavioral
- Lead sponsor
- University of North Carolina, Chapel Hill
- Other
- Eligibility
- 16 Years to 19 Years
- Enrollment
- 200 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2005 – 2006
- U.S. locations
- 2
- States / cities
- Tampa, Florida • Boston, Massachusetts
- Conditions
- Marijuana Dependence
- Interventions
- Nicotine, Cannabis, PAX Loose Leaf Vaporizer
- Drug · Device
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 21 Years to 70 Years
- Enrollment
- 8 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Cigarette Smoking-Related Carcinoma, E-Cig Use
- Interventions
- Effectiveness of different recruitment approaches, Choice of study completion locations, Cannabis Engagement Assessment, E-cigarette dependence Scale, Nicotine dependence Scale, Co use practices QUestionnaire
- Other
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 18 Years to 25 Years
- Enrollment
- 150 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2028
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Behavioral Economics, Cannabis Smoking, Tobacco Smoking
- Interventions
- Cue Reactivity
- Behavioral
- Lead sponsor
- Brown University
- Other
- Eligibility
- 18 Years to 25 Years
- Enrollment
- 120 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2028
- U.S. locations
- 1
- States / cities
- Providence, Rhode Island
- Conditions
- Cannabis Use, Tobacco Use, Electronic Cigarette Use
- Interventions
- THC High Dose, THC Low Dose, THC 0mg, E-Cigarette Full Nicotine, E-Cigarette Placebo Nicotine
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2029
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Cannabis Use, Cannabis Dependence, Cannabis Use Disorder, Cannabis Abuse, Cannabis Intoxication, Cannabis Smoking, Cannabis Withdrawal, Cannabis-Related Disorder, Cannabis Abuse, in Remission, Cannabis Abuse, Episodic Use, Marijuana, Marijuana Abuse, Marijuana Use, Marijuana Smoking, Marijuana Dependence, Marijuana User, Marijuana-Related Disorder, Marijuana Use Disorder, Addiction, Addiction, Substance, Substance Use, Substance Use Disorders, Substance Dependence, Substance Abuse, Substance Related Problem, Substance Abuse Drug Chronic
- Interventions
- Contingency Management, Elastic Net Regression
- Behavioral · Device
- Lead sponsor
- Indiana University
- Other
- Eligibility
- 14 Years to 17 Years
- Enrollment
- 80 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2030
- U.S. locations
- 1
- States / cities
- Indianapolis, Indiana
- Conditions
- Perinatal, Cannabis Use, Tobacco Use, Smoking Cessation
- Interventions
- Perinatal smoking cessation treatment and maintenance sessions
- Behavioral
- Lead sponsor
- University of Pittsburgh
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Tobacco Use Disorder, Cannabis Use Disorder
- Interventions
- Varenicline, Placebo
- Drug
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina
- Conditions
- Cannabis Use, Tobacco Use, Cigarette Smoking
- Interventions
- THC 30mg, THC 5mg, THC 0mg, Cigarette Full Nicotine, Cigarette Reduced Nicotine
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2029
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Cannabis Smoking, Oxidative Stress
- Interventions
- Bronchoscopy, Chest X-ray, Venipuncture, Intravenous Catheter
- Procedure · Radiation
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2027
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- Conditions
- Cannabis Use, Tobacco, Biomarkers
- Interventions
- Cannabis (THC), Tobacco Cigarette
- Drug
- Lead sponsor
- Hannah Harris
- Other
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 12 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Lexington, Kentucky
- Conditions
- Cannabis Dependence, Nicotine Dependence
- Interventions
- Cognitive Behavioral Therapy, Nicotine Replacement Therapy
- Behavioral · Drug
- Lead sponsor
- Mclean Hospital
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 12 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Belmont, Massachusetts
- Conditions
- Opioid-use Disorder, Acceptability of Health Care, Opioid-Related Disorders
- Interventions
- Not listed
- Lead sponsor
- Cambridge Health Alliance
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 817 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2027
- U.S. locations
- 1
- States / cities
- Cambridge, Massachusetts
- Conditions
- Cannabis Intoxication
- Interventions
- Cannabis
- Drug
- Lead sponsor
- University of California, San Diego
- Other
- Eligibility
- 21 Years to 55 Years
- Enrollment
- 199 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2019
- U.S. locations
- 1
- States / cities
- San Diego, California
- Conditions
- HIV Positive, Marijuana Smoking
- Interventions
- Not listed
- Lead sponsor
- Wayne State University
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 119 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2017
- U.S. locations
- 1
- States / cities
- Detroit, Michigan
- Conditions
- Schizophrenia, Substance Abuse, Cocaine Abuse, Tobacco Use Disorder
- Interventions
- Various Screening psychiatric and medical assessments
- Behavioral
- Lead sponsor
- University of Maryland, Baltimore
- Other
- Eligibility
- 18 Years to 64 Years
- Enrollment
- 523 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2019
- U.S. locations
- 1
- States / cities
- Catonsville, Maryland
- Conditions
- Alcohol Drinking, Smoking, Marijuana Smoking
- Interventions
- Project ALERT
- Behavioral
- Lead sponsor
- Pacific Institute for Research and Evaluation
- Other
- Eligibility
- Not listed
- Enrollment
- 8,338 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2004 – 2008
- U.S. locations
- 1
- States / cities
- Chapel Hill, North Carolina
- Conditions
- Marijuana Smoking
- Interventions
- Dronabinol 120mg/day, Placebo, Dronabinol 240mg/day
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 18 Years to 100 Years
- Enrollment
- 25 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2012
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Cannabis Use, Tobacco Use Disorder, Drug Use Disorder
- Interventions
- N-Acetyl cysteine, Placebo comparator, Cognitive behavioral therapy (CBT)
- Drug · Other · Behavioral
- Lead sponsor
- Ellen Herbst
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 41 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2025
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Smoking Cessation, Marijuana Use
- Interventions
- Behavioral: Quitline treatment as usual, QL Marijuana Check-Up intervention (QL-MJCU)
- Behavioral
- Lead sponsor
- Consumer Wellness Solutions
- Industry
- Eligibility
- 21 Years and older
- Enrollment
- 107 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Tobacco Use
- Interventions
- THC
- Drug
- Lead sponsor
- Battelle Memorial Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 9 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Alcohol Drinking, Marijuana Smoking
- Interventions
- brief counseling
- Behavioral
- Lead sponsor
- National Institute on Alcohol Abuse and Alcoholism (NIAAA)
- NIH
- Eligibility
- 18 Years and older
- Enrollment
- 554 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2008
- U.S. locations
- 1
- States / cities
- Providence, Rhode Island