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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Marijuana Abuse and Dependence Clear all
Completed Phase 2 Interventional Results available

Treatment for Cannabis Withdrawal and Dependence

NCT01611948
View directory record Official record
Conditions
Cannabis Dependence
Interventions
Aprepitant, Placebo, Manual-guided behavioral counseling
Drug · Behavioral
Lead sponsor
The Scripps Research Institute
Other
Eligibility
18 Years to 70 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Apr 30, 2017 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Marijuana Treatment Project 4

NCT02030665
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Contingency Management, Individualized Assessment & Treatment, Cognitive-Behavioral Treatment
Behavioral
Lead sponsor
UConn Health
Other
Eligibility
18 Years to 99 Years
Enrollment
198 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 20, 2019 · Synced Sep 1, 2026, 5:59 PM EDT
Completed No phase listed Observational

Risk Perception in Drug-Dependent Adults With and Without Schizophrenia

NCT01031563
View directory record Official record
Conditions
Cocaine Dependence, Cannabis Dependence, Schizophrenia
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 64 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effect of Marijuana and Prescription Medications in Mood, Performance and Sleep

NCT00893269
View directory record Official record
Conditions
Marijuana Dependence
Interventions
eszopiclone, Placebo, ramelteon, zolpidem
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 4, 2013 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 2 Interventional Results available

Atomoxetine Treatment for ADHD and Marijuana Dependence

NCT00360269
View directory record Official record
Conditions
Marijuana Abuse, Attention Deficit Disorder With Hyperactivity
Interventions
Atomoxetine, Motivational enhancement therapy, Placebo
Drug · Procedure
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 29, 2014 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Sativex(Registered Trademark) and Oral THC on Attention, Affect, Working Memory, Reversal Learning, Physiology and Brain Activation

NCT01037608
View directory record Official record
Conditions
Cannabis, Dependence, Cannabis Abuse, Pharmacokinetics, fMRI
Interventions
Sativex(Registered Trademark), THC
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 45 Years
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 1, 2026, 5:59 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Ph1 Marinol Interaction Study - Part 1 - 1

NCT00438139
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Dronabinol
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 45 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 15, 2017 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sex Differences in Attentional Bias in Marijuana-dependent Individuals

NCT01179425
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Cognitive stressor
Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 13, 2011 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Baclofen Effects on Marijuana Dependence

NCT02011516
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Baclofen, Psychosocial, Placebo
Drug · Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 60 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 13, 2017 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 2 Interventional

Effectiveness of Nefazodone and Bupropion in Treating Marijuana Dependent Individuals

NCT00249509
View directory record Official record
Conditions
Marijuana Abuse
Interventions
Nefazodone, Bupropion
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 65 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2004
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 15, 2017 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 2 Interventional

Maximizing the Efficacy of Cognitive Behavior Therapy and Contingency Management

NCT00350649
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Standard CBT, CBT+CM/adherence, CM/abstinence, CM/abstinence+CBT
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 26, 2011 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Ph1 Marinol Interaction Study - Part 2 - 1

NCT00490269
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Placebo, Dronabinol
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 4 Interventional

Improving Substance Use and Clinical Outcomes in Heavy Cannabis Users With Quetiapine

NCT01153490
View directory record Official record
Conditions
Cannabis Dependence
Interventions
Behavioral Intervention
Behavioral
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 65 Years
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
2
States / cities
Glen Oaks, New York • Manhasset, New York
Source: ClinicalTrials.gov public record
Updated Apr 16, 2018 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Combined Pharmacotherapy for Cannabis Dependency

NCT01020019
View directory record Official record
Conditions
Cannabis Dependence, Marijuana Dependence
Interventions
Dronabinol, Placebo, Lofexidine
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
156 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 23, 2019 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Not applicable Interventional Results available

Evaluation of Medical Cannabis and Prescription Opioid Taper Support for Reduction of Pain and Opioid Dose in Patients With Chronic Non-Cancer Pain

NCT04827992
View directory record Official record
Conditions
Opioid Use, Pain, Marijuana Use
Interventions
Cannabis, Prescription Opioid Taper Support (POTS)
Drug · Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
3
States / cities
Portland, Maine • Boston, Massachusetts • Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 1Phase 2 Interventional

Dental and Medical Office iMET to Reduce Teen Tobacco, Alcohol, and Drug Use

NCT00907309
View directory record Official record
Conditions
Use; Tobacco, Harmful, Alcohol Abuse, Drug Abuse
Interventions
iMET, iMET/TE
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
12 Years to 21 Years
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 6, 2016 · Synced Sep 1, 2026, 5:59 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

E-cigarette Cessation in Adults Who Co-use Cannabis

NCT06688539
View directory record Official record
Conditions
Nicotine Dependence, Tobacco Use Disorder
Interventions
Varenicline Pill, Contingency management, Counseling
Drug · Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 40 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
3
States / cities
Charleston, South Carolina • Lancaster, South Carolina • Pickens, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Not applicable Interventional

Cannabis Use and Relapse After One Week of Contingency Management Therapy

NCT04202146
View directory record Official record
Conditions
Cannabis Dependence
Interventions
Contingency Management + Motivational Interviewing
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 10, 2021 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Not applicable Interventional

Treatment for Teens With Alcohol Abuse and Depression

NCT02227589
View directory record Official record
Conditions
AOD Use, Abuse, and Dependence, Depression
Interventions
MET/CBT-12, CBT-D, D-TAU
Behavioral · Other
Lead sponsor
Duke University
Other
Eligibility
13 Years to 263 Months
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
2
States / cities
Farmington, Connecticut • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 4, 2020 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

THC Crossover Study

NCT04429568
View directory record Official record
Conditions
THC, Cannabis, Cannabis Smoking, Cannabis Use, Unspecified, Cigarette Smoking, Tobacco Use, Nicotine Dependence, Nicotine Withdrawal, Cardiovascular Risk Factor
Interventions
Smoked Cannabis, Vaped Cannabis, Tobacco Cigarette
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years and older
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 30, 2024 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 2 Interventional Results available

Gabapentin Treatment of Cannabis Dependence

NCT00395044
View directory record Official record
Conditions
Cannabis Dependence
Interventions
Placebo, Gabapentin
Drug
Lead sponsor
The Scripps Research Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Feb 9, 2017 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 2 Interventional Results available

Pregnenolone and Marijuana Dependence

NCT02439814
View directory record Official record
Conditions
Marijuana Dependence
Interventions
Pregnenolone, Placebo
Drug · Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 17, 2018 · Synced Sep 1, 2026, 5:59 PM EDT
Completed Phase 2 Interventional Results available

Cognitive Behavioral Therapy and the Nicotine Transdermal Patch for Cannabis Dependence and Nicotine Dependence

NCT01292642
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Aug 13, 2013 · Synced Sep 1, 2026, 5:59 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Imaging Cannabinoid Receptors Using Positron Emission Tomography (PET) Scanning

NCT01730781
View directory record Official record
Conditions
Schizophrenia, Cannabis Dependence, Prodromal for Psychotic Illness, Family History of Alcoholism, Healthy Control, Opioid-use Disorder, Post Traumatic Stress Disorder
Interventions
[11-C]OMAR
Radiation
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 1, 2026, 5:59 PM EDT