Active clinical trials for "Substance-Related Disorders"

MDMA releases dopamine, serotonin, and norepinephrine in the brain. Serotonin uptake inhibitors have been shown to interact with 3,4-Methylenedioxymethamphetamine (MDMA) and to decrease its psychoactive and cardiovascular stimulant effects. This finding indicates that MDMA acts in part by releasing serotonin through the serotonin uptake site. However, in vitro studies show that MDMA binds more potently to the norepinephrine uptake site that to the the serotonin or dopamine uptake transporter. In addition, norepinephrine uptake site blockers such antidepressant drugs attenuate some of the behavioral effects of MDMA in animals. These preclinical data indicate that norepinephrine may also contribute to the response to MDMA in humans. To test this hypothesis this study evaluates the interacting effects of the selective norepinephrine transporter inhibitor reboxetine on the subjective and cardiovascular stimulant effects of MDMA in healthy volunteers.

The proposed project will apply a unique, effective family-responsive psychoeducation program, PsychoEducation Responsive to Families (PERF), for Hepatitis C Virus (HCV) treatment. The goal is to demonstrate that the intervention will enlarge the eligibility of some patients for HCV treatment and help sustain others through it.

This study involves giving psychoactive drugs intramuscularly (injected into the muscle of the upper arm or the hip) and/or orally, and measuring the subject's ability to tell the difference between one drug and another, as well as measuring the effects of the drugs on mood, physiology (e.g., heart rate, blood pressure, respiration rate) and behavior. Each subject will receive 2-4 of the listed interventions.

The goal of this project is to determine the barriers to, and risks and benefits of random laboratory drug testing for adolescents with identified drug or alcohol problems.

This project is intended to help substance use disorder patients who perpetrate interpersonal violence against other adults.

Contingency management (CM) is a demonstrably efficacious intervention for substance abuse and dependence. Although CM protocols have employed a variety of reinforcers, they have almost exclusively relied upon non-cash privileges (e.g., take-home methadone doses), prizes, or vouchers that can be exchanged for goods or services. Despite the strong empirical support for CM, our research suggests that concerns relating to its cost and safety (e.g., potential for harm caused by rewards undermining intrinsic motivation or being sold to purchase drugs) have hindered its transfer to real-world practice. The exclusive use of non-cash CM likely stems from the untested assumption that clients will use cash incentives to buy drugs or engage in other high-risk behaviors. This assumption is problematic for two reasons. First, the use of non-cash incentives may add substantial costs and complexity to CM protocols. Second, the use of non-cash incentives may reduce the efficacy of CM interventions, as research suggests that cash may be a more effective reinforcer than vouchers. This study examines both practical and ethical issues relating to cash-based CM procedures. This study consists of three phases; a main experiment, a "Cash Bowl" pilot, and a "Thinning" Pilot.

The purpose of this study is to determinate the effect of a pre-treatment with doxazosin, a alpha1-adrenergic receptor blocker, on the pharmacodynamics and pharmacokinetics of 3,4-methylenedioxymethamphetamine (MDMA, "ecstasy"). The investigators hypothesize that doxazosin will attenuate the cardiovascular and subjective response to MDMA.

MDMA (3,4-Methylenedioxymethamphetamine, "Ecstasy") produces tachycardia, hypertension, hyperthermia, and other acute adverse effects. Ecstasy use has also been associated with rare cardio- and cerebrovascular complications. The role of beta-blockers in the treatment of cardiovascular and adverse effects of MDMA is unknown.

The purpose of this study is to examine the effectiveness of a 12-hour basic job-training program designed to give drug abuse treatment patients the skills they need to find and secure a job and set vocational goals and methods for locating employment. The intervention to be evaluated is modeled after the Job Seekers' Workshop, which was manualized and has been tested in trials.

The purpose of this study is to determine whether Integrated Cognitive Behavioral Therapy or Twelve Step Facilitation Therapy is most effective for treatment of dually diagnosed veterans with depressive and substance use disorders.