View clinical trials related to Marijuana Abuse.
Filter by:INCA (Intervention and Neuropsychology of Cannabis Abuse) is a study combining two research goals. One is to study efficacy of a short intervention the ‘Problem Profile Intervention’, which utilizes individual feedback from a ‘substance problem check-up’. Subjects will randomly receive the ‘Problem Profile Intervention’ or the WHO Brief Intervention, a brief intervention, which has been shown to be efficacious. Currently efficiency studies are under way. The WHO Brief Intervention has been translated into German by our group. In contrast to most other cannabis intervention studies the current study is focussed on cannabis abusers not so much cannabis-dependent subjects. A total of 160 subjects are to be recruited. Half of them will randomly receive either the Problem Profile Intervention or the WHO Brief Intervention (active control). A total of 25% of subjects from each group will be placed on a 3 months waiting list before receiving the intervention (inactive control). Intervention outcome will be assessed three months, six month and 12 months after the intervention. We hypothesize cannabis use to be reduced by 25% by the 'Problem Profile Intervention'. The second aim of the study is to study mechanism of substance abuse. Initial results from own studies and data from other groups point to executive cognitive functions as a subtle but important factor that can be compromised in cannabis users (Verdejo-Garcia et al., 2004; Garavan and Stout, 2005). Using an fMRI-study, we intend to examine a subgroup of our subjects on a specific aspect of executive functioning that has recently received major interest in drug research: Decision-making capability, or risk-taking behaviour, respectively (e.g. Ernst and Paulus, 2005).
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. Subjects were tested twice, after smoking cigarettes with marijuana and after smoking cigarettes without marijuana.On both occasions they performed on a virtual reality maze task. They were afterwards scanned in Positron Emission Tomography (PET) with Fluoro-deoxy-glucose (FDG).
The purpose of this study is to develop a modular treatment program for cannabis use disorders and the evaluation of the effectiveness in a controlled clinical study.
Recent research has identified the following withdrawal symptoms to be associated with abruptly stopping marijuana use: anxiety, irritability, bodily aches and pains, and difficulty sleeping. These symptoms resemble those of both depression and nicotine withdrawal, suggesting that a similar treatment drug may be useful. This study will evaluate the effectiveness of two antidepressant drugs, bupropion and nefazodone, in reducing withdrawal symptoms in marijuana dependent individuals.
The purpose of this study is to test the efficacy of an individual motivational interview for reducing alcohol and marijuana-related harm as well as alcohol and marijuana use in incarcerated teens.
The purpose of this study is... To assess whether a behavioral treatment that combines motivational enhancement and cognitive skills training therapy (MET-CBT) is more effective than brief advice in: 1) decreasing use of a full range of psychoactive substances (e.g. marijuana, cocaine, methamphetamines, alcohol, nicotine, opioids) in pregnant substance using and dependent women; 2) decreasing HIV risk behavior; 3) improving birth outcomes (longer gestations and greater birth weight).
The purpose of this study is to examine the efficacy of a brief motivational intervention on marijuana use and sex-risk behavior in young women.
During the past 15 years, the demand for treatment for marijuana-related problems in the United States has increased nearly twofold. Selegiline is a medication currently used to treat nicotine dependence. The purpose of this study is to evaluate whether selegiline may be useful in treating individuals with marijuana dependence.
The majority of past research on marijuana treatment has targeted the alleviation of withdrawal symptoms. Minimal focus has been placed on how altering craving effects may play a role in treating marijuana addiction. Treatment with tetrahydrocannabinol (THC), the main ingredient in marijuana responsible for its reinforcing effects, may decrease marijuana cravings. The purpose of this study is to evaluate the effect of THC pre-treatment on responses to marijuana-related cues versus non marijuana-related cues in individuals addicted to marijuana.
The majority of past research on marijuana treatment has specifically targeted the alleviation of withdrawal symptoms. Minimal focus has been placed on how altering craving effects may play a role in treating marijuana addiction. The purpose of this study is to compare the effects of marijuana-related cues versus non marijuana-related cues in individuals both addicted and not addicted to marijuana. In turn, this may help establish a better understanding of the effects of marijuana cravings and may lead to improved treatments for marijuana dependence.