Clinical trials: Abuse Cannabis
Posttraumatic Stress Disorder
Pilot Study of the Safety and Efficacy of Four Different Potencies of Smoked Marijuana in 76 Veterans With PTSD
This pilot study gathered preliminary evidence of the safety and efficacy of four potencies of smoked cannabis to manage chronic, treatment-resistant PTSD among veterans: (1) High THC/ Low CBD (High THC), (2) Low THC/High CBD…
- Trial name
- NCT02759185
- Testing
- High THC cannabis, High CBD cannabis, THC/CBD cannabis
- Where
- United States
- Volunteers
- 80 people
- Sponsor
- Multidisciplinary Association for Psychedelic Studies
Marijuana Usage, Opioid Use
Opioid and Cannabinoid Interactions
This study will examine the effects of doses of marijuana/placebo and doses of opioid/placebo, alone and in combination. The primary outcomes are related to pharmacodynamic measures (subjective ratings of drug liking and other…
- Trial name
- NCT03705559
- Testing
- Vaporized Marijuana, Opioid Agonist
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Shanna Babalonis, PhD
Schizophrenia, Cannabis Abuse
Clozapine for Cannabis Use in Schizophrenia
Many individuals with schizophrenia also suffer from marijuana addiction that worsens their problems related to schizophrenia. Most of the medications prescribed for schizophrenia have no effect on reducing marijuana use.
- Conditions
- Schizophrenia, Cannabis Abuse, Cannabis Dependence, Dual Diagnosis
- Trial name
- CLOCS (NCT01639872)
- Testing
- Clozapine, Risperidone
- Where
- 9 sites in United States
- Volunteers
- 49 people
- Sponsor
- Dartmouth-Hitchcock Medical Center
Marijuana Dependence
Comparison Between Marijuana Smoked in Cigarette Paper Versus Cigar Paper
The purpose of this study is to investigate whether or not marijuana blunts will produce comparable plasma THC levels as marijuana joints and if blunts will produce larger cardiovascular and subjective effects.
- Trial name
- NCT00374127
- Testing
- Marijuana blunt, marijuana cigarette
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- New York State Psychiatric Institute
Marijuana Dependence
Ph1 Marinol Interaction Study - Part 2 - 1
This study will examine the effects of oral dronabinol tetrahydrocannabinol (THC) on withdrawal symptoms in marijuana dependent volunteers, and evaluate the safety, pharmacokinetics (PK), and cardiovascular effects of the…
- Trial name
- NCT00490269
- Testing
- Dronabinol
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- National Institute on Drug Abuse (NIDA)
Cannabis, HIV Neuropathy
Effect of Cannabis and Endocannabinoids on HIV Neuropathic Pain
Acute cannabis administration is reported to alleviate HIV neuropathic pain (HIV-NP), but there is limited knowledge about the effects of cannabis constituents (delta-9 tetrahydrocannabinol/THC and cannabidiol/CBD), the…
- Conditions
- Cannabis, HIV Neuropathy, Pain Syndrome
- Trial name
- NCT03099005
- Testing
- Cannabis
- Where
- United States
- Volunteers
- 5 people
- Sponsor
- University of California, San Diego
Marijuana Dependence
Effectiveness Study of Dronabinol and BRENDA for the Treatment of Cannabis Withdrawal
This treatment study is targeted specifically for those who want to stop using marijuana. We want to find out if patients who are dependent on marijuana and want to stop using are helped by a combination of the drug dronabinol…
- Trial name
- NCT00480441
- Testing
- Dronabinol, BRENDA therapy
- Where
- United States
- Volunteers
- 61 people
- Sponsor
- University of Pennsylvania
Cannabis, Post Traumatic Stress Disorder
Nabilone in Cannabis Users With PTSD
Despite the prevalence of cannabis use among the PTSD population and self-reports that it is used to help cope with PTSD symptoms, the direct effects of cannabis on PTSD symptomology are unknown.
- Trial name
- NCT03251326
- Testing
- Nabilone, Cannabis, Propranolol
- Where
- United States
- Volunteers
- 4 people
- Sponsor
- New York State Psychiatric Institute
Pain, Insomnia
Effect of Medical Marijuana on Neurocognition and Escalation of Use
This study will use a randomized controlled design to test whether patients who use medical marijuana, compared to a waitlist control group, experience a change in health outcomes (relief of symptoms, or adverse health outcomes…
- Conditions
- Pain, Insomnia, Depression, Anxiety
- Trial name
- MMNE (NCT03224468)
- Testing
- Medical Marijuana
- Where
- United States
- Volunteers
- 269 people, healthy volunteers welcome
- Sponsor
- Massachusetts General 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-Related Disorder, Substance-Related Disorders
First Episode Schizophrenia and Cannabis-Related Disorder Study
Many individuals with schizophrenia abuse cannabis at the onset of their illness, portending a poorer course of illness and poorer treatment response.
- Conditions
- Cannabis-Related Disorder, Substance-Related Disorders, Schizophrenia, Psychotic Disorders
- Trial name
- NCT00573287
- Testing
- clozapine, risperidone
- Where
- 5 sites in United States
- Volunteers
- 14 people
- Sponsor
- Dartmouth-Hitchcock Medical Center
Cannabis-use Disorders
Behavioral Effects of Pregabalin and Cannabis
Cannabis is the most commonly used illicit drug in the United States, and its use is associated with rates of development of abuse and dependence, treatment admission and relapse that are comparable to other illicit drugs.
- Trial name
- NCT01511640
- Testing
- Pregabalin
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Joshua A. Lile, Ph.D.
Marijuana Dependence
Effect of Oxytocin on Stress in Marijuana Users
The purpose of this study is to evaluate how people who frequently use marijuana respond to a stressful task, and if a medication (oxytocin) affects this response.
- Trial name
- NCT01335789
- Testing
- Oxytocin, Saline
- Where
- United States
- Volunteers
- 16 people
- Sponsor
- Medical University of South Carolina
Cannabis Dependence
A Trial of N-Acetylcysteine (an Over-the-Counter Medicine) in Adolescents Who Smoke Marijuana
This study is investigating how N-Acetylcysteine (NAC), an over-the-counter medication, will reduce marijuana use when combined with Contingency Management, a behavioral treatment.
- Trial name
- NCT01005810
- Testing
- N-Acetylcysteine, Contingency Management
- Where
- United States
- Volunteers
- 116 people
- Sponsor
- Medical University of South Carolina
Marijuana Dependence
Vilazodone Treatment for Marijuana Dependence
Marijuana is the most commonly used illicit drug, yet few clinical trials have evaluated pharmacotherapy treatments for marijuana dependence.
- Trial name
- NCT01574183
- Testing
- Vilazodone
- Where
- United States
- Volunteers
- 76 people
- Sponsor
- Medical University of South Carolina
Marijuana Dependence
Effect of Baclofen on Marijuana Withdrawal and Relapse
The purpose of this study is to determine if baclofen dose-dependently decreases marijuana's direct effects and symptoms of marijuana withdrawal and thus decreases marijuana relapse.
- Trial name
- NCT00373295
- Testing
- Baclofen, Marijuana
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- New York State Psychiatric Institute
Marijuana Abuse
Dronabinol Treatment for Marijuana Addiction
The purpose of this study is to determine if dronabinol decreases the symptoms of marijuana addiction and withdrawal.
- Trial name
- MARINOL (NCT00217971)
- Testing
- Dronabinol
- Where
- United States
- Volunteers
- 156 people, healthy volunteers welcome
- Sponsor
- New York State Psychiatric Institute
Marijuana Abuse
Effects of Citicoline on Brain Function and Behavior in Marijuana-Dependent Individuals
The Three Aims of this study are (only studies for Aim 1 were completed) 1. Measure the impact of citicoline on marihuana use patterns in subjects' individualized natural settings and responses to marihuana challenge using…
- Trial name
- NCT00158249
- Testing
- citicoline
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- Mclean Hospital
Depression, Marijuana Abuse
Free Venlafaxine Treatment for Marijuana Addiction and Depression - 1
The purpose of this study is to determine if Venlafaxine Extended Release (Ven-XR) is effective in treating individuals with marijuana addiction and depression.
- Trial name
- VEN (NCT00131456)
- Testing
- Venlafaxine
- Where
- United States
- Volunteers
- 123 people
- Sponsor
- New York State Psychiatric Institute
Adolescent Drinking, Adolescent Problem Behavior
Mindfulness Mobile App to Reduce Adolescent Substance Use
Substance-abusing youth - especially those who are involved in the juvenile justice system - are at higher risk than nonusers for mental health problems, including depression, conduct problems, personality disorders, suicidal…
- Trial name
- Qlarity (NCT04027075)
- Testing
- Qlarity app users
- Where
- United States
- Volunteers
- 257 people, healthy volunteers welcome
- Sponsor
- Oregon Research Behavioral Intervention Strategies, Inc.